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Home My WebLink About20190509.tiffRESOLUTION RE: ACTION OF THE BOARD CONCERNING MINOR AMENDMENT, 1MUSR18-80-439 TO A USE BY SPECIAL REVIEW PERMIT, USR-439, FOR A MAJOR FACILITY OF A PUBLIC UTILITY (115,000 -VOLT ELECTRIC TRANSMISSION LINE AND 115,000- 13,000 VOLT ELECTRIC SUBSTATION) TO UPGRADE/EXPAND EXISTING SUBSTATION SITE IN THE A (AGRICULTURAL) ZONE DISTRICT - WJW PROPERTIES, LLC, C/O PUBLIC SERVICE COMPANY OF COLORADO WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to Colorado statute and the Weld County Home Rule Charter, is vested with the authority of administering the affairs of Weld County, Colorado, and WHEREAS, the Board of County Commissioners held a public hearing on the 4th day of February, 2019, at the hour of 9:00 a.m., in the Chambers of the Board, for the purpose of hearing the application of WJW Properties, LLC, 16350 County Road 76, Eaton, Colorado 80615, c/o Public Service Company of Colorado, 1800 Larimer Street, Suite 400, Denver, Colorado 80202, for a Minor Amendment, 1 MUSR18-80-439, to Use by Special Review Permit, USR-439, for a Major Facility of a Public Utility (115,000 -volt Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A (Agricultural) Zone District, on the following described real estate, being more particularly described as follows: S1/2, SW1/4 NW1/4, S1/2 SE1/4 NW1/4, S1/2 SW1/4 NE1/4, S1/2 SE1/4 NE1/4 N1/2, SE1/4 NE1/4, excluding the west 100 feet of Section 36, Township 3 North, Range 64 West of the 6th P.M., Weld County, Colorado WHEREAS, at said hearing, the applicant was present, Jeff Walker, 1800 Larimer Street, Suite 400, Denver, Colorado, and WHEREAS, the Board of County Commissioners heard all of the testimony and statements of those present, studied the recommendation of the Weld County Planning Services and, having been fully informed, finds that this matter will be referred back to the Department of Planning Services for administrative review. NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld County, Colorado, that the application of WJW Properties, LLC, c/o Public Service Company of Colorado, for a Minor Amendment, 1 MUSR18-80-439, to Use by Special Review Permit, USR-439, for a Major Facility of a Public Utility (115,000 -volt Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A (Agricultural) Zone District, on the above referenced parcel of land be, and hereby is, referred back to the Department of Planning Services for administrative review. CC%PL(cc,!-cP),A9PL c eR 2/22 /%9 2019-0509 PL1495 MINOR AMENDMENT, 1MUS18-80-439 TO USE BY SPECIAL REVIEW PERMIT, USR-439 - WJW PROPERTIES, LLC, C/O PUBLIC SERVICE COMPANY OF COLORADO PAGE 2 The above and foregoing Resolution was, on motion duly made and seconded, adopted by the following vote on the 4th day of February, A.D., 2019. BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO ATTEST: datite4) jeL;ei Weld County Clerk to the Board BY: Tc( Deputy CI to the Board APP' • ' ED A t•T ORM ount ttorney Mike Freeman, Pro-Tem rbara Kirkmeyerl EXCUSED ea P. Conwa James Steve Moreno Mr -1- QivJ� 2019-0509 PL1495 Planner: Case Number: Applicant: Owner: Request: Legal Description: LAND USE APPLICATION SUMMARY SHEET Chris Gathman 1 MUSR18-80-439 Public Service Company of Colorado WJW Properties, LLC Hearing Date: 2/4/2018 A Minor Amendment to SUP -439 (115,000 -volt Electric Transmission Line and 115,000- 13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Subdivision Exemption SUBX19-0003; located in the W2 of Section 36 T3N R64W, Weld County, Colorado Location: The substation is located on a private access road located approximately 3.4 miles north of the intersection of County Road 20/County Road 59. Size of Parcel: +/- 440.23 acres Parcel No. 1215-36-0-00-001 (Substation Site: +/- 8 acres) POSSIBLE ISSUES SUMMARIZED FROM APPLICATION MATERIALS The criteria for review of this Special Review Permit is listed in Section 23-2-220 of the Weld County Code. The Department of Planning Services' staff has received referral responses with comments from the following agencies: Weld County Department of Public Works, referral dated 1/9/2019 Weld County Department of Public Health and Environment, referral dated 12/17/2018 The Department of Planning Services' staff has received responses without comment from the following agencies: Weld County Code Compliance, referral dated 11/30/2018 Weld County Sheriff's office referral dated 12/7/2018 Southeast Weld Fire Protection District, referral dated 11/29/2018 Colorado Parks and Wildlife, referral dated 11/28/2018 The Department of Planning Services' staff has not received responses from the following agencies: Public Safety Wireless Communications Manager Weld County Office of Emergency Management Colorado Department of Transportation Town of Milliken Town of Keenesburg Weld County School District RE3-J Southeast Weld Conservation District 1 MUSR18-80-439 — Public Service Company of Colorado Page 1 of 8 Planner: SPECIAL REVIEW PERMIT ADMINISTRATIVE REVIEW C. Gathman Case Number: 1MUSR18-80-439 Applicant: Public Service Company of Colorado Owner: WJW Properties, LLC Hearing Date: 2/4/2019 Request: A Minor Amendment to a Use by Special Review Permit for a major facility of a public utility (115,000 -volt Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Legal Subdivision Exemption SUBX19-0003; located in the W2 of Section 36 T3N R64W, Description: Weld County, Colorado Location: The substation is located on a private access road located approximately 3A miles north of the intersection of County Road 20/County Road 59. Size of Parcel: Summary: +/- 440.23 acres Parcel No. 1215-36-0-00-001 USR-489 (115,000 -volt transmission line, substation and switching station was approved by the Board of County Commissioners on 9/17/1980. The applicant is proposing to expand the boundaries of USR-489 under this proposed minor amendment. The area (including detention) for the substation is proposed to increase from 0.58 acres to approximately 8 acres in size. The applicant is proposing to install additional equipment in this area to serve an existing mineral resource development (oil and gas) customer in the area. The existing substation is located on a right-of-way that was granted to the applicant from the State Land Board (the property owner at the time). This document was recorded in 1981. The right-of-way grant has a section that provides for the facility to be enlarged, replaced, relocated, or added to in the future subject to potential additional consideration commensurate with the damage to the value of the land. This case was scheduled to go before the Board of County Commissioners due to a pending Probable Cause case on the same property for the USR-1285 (A-1 Organics, Rattler Ridge) under case number PCSC18-0023. PCSC18-0023 was dismissed on 1/27/2019. This was the sole reason for scheduling this case to be heard by the Board of County Commissioners. As a result, staff is recommending that this case be remanded back to the Department of Planning Services. THE DEPARTMENT OF PLANNING SERVICES' RECOMMENDS APPROVAL OF THIS APPLICATION FOR THE FOLLOWING REASONS: 1. The proposed change(s) will be compatible with existing and allowed uses in the surrounding area and be in harmony with the neighborhood. 1 MUSR18-80-439 — Public Service Company of Colorado Page 2 of 8 The existing substation is in a remote area of the county adjacent to an existing solid waste disposal site (USR-1285) to the east and a landfill facility (USR-966) located approximately 1 mile to the west. The applicant is proposing to expand the substation to the north and west. The expansion area is located outside of the existing operations area for USR-1285 and the operations are shown on the USR-1285 map. 2. The proposed change(s) is consistent with the County Comprehensive Plan pursuant to Chapter 22 of the Weld County Code. Section 22-2-20.G.2.A.Policy 7.2 of the Weld County Code states: "Conversion of agricultural land to nonurban residential, commercial and industrial uses should be accommodated when the subject site is in an area that can support such development, and should attempt to be compatible with the region." The proposed expansion of the substation site is to serve oil and gas development in the area. The proposed substation expansion is located in a remote area and will not encroach upon existing operations for the adjacent landfill facility (USR-1285). 3. The proposed change(s) will not result in a substantial adverse impact on the other property in the vicinity of the subject property. Comments from referral agencies have been addressed through conditions of approval and development standards. 4. The recommendations of the referral agencies have been considered. Comments from referral agencies have been addressed through conditions of approval and development standards. 5. The Proposed change is not deemed to be a major change. A Pre -Application (PRE18-0229) meeting was held on August 9, 2018. In discussions with the Weld County Department of Planning Services, the Weld County Department of Public Health and Environment, the Weld County Department of Public Works, and it was determined that the proposed modifications are consistent with the existing permit and minor in nature. 6. The proposed change must be consistent with the original development standards. The original USR-439 plat was approved with few development standards. Development Standards have been added and updated to reflect changes in County Codes and policies that have occurred since this USR was approved in 1980. This approval is based, in part, upon a review of the application materials submitted by the applicant, other relevant information regarding the request, and responses from referral entities. The Department of Planning Services' staff recommendation for approval is conditional upon the following: 1. Prior to recording the map: A. During construction, a Road Maintenance Agreement is required at this location. Road maintenance includes, but is not limited to, dust control and damage repair to specified haul routes. (Department of Public Works) B. A Final Drainage Report and Certification of Compliance stamped and signed by a Professional Engineer registered in the State of Colorado is required. (Department of Public Works) 1 MUSR18-80-439 — Public Service Company of Colorado Page 3 of 8 C. The applicant shall submit a recorded copy of any agreement signed by all the owners of the property crossed by the access. The access shall be for ingress, egress, utilities and shall be referenced on the USR map by the Weld County Clerk and Recorder's Reception number. (Department of Public Works) D. A partial vacation map for USR-1285 (Solid Waste Disposal Site and Composting Facility) shall be submitted to the Department of Planning Services. The partial vacation map shall adhere to the requirements of Section 23-2-280.B.4 of the Weld County Code. (Department of Planning Services) E. The Subdivision Exemption SUBX19-0003 plat shall be submitted to the Department of Planning Services for recording. (Department of Planning Services) F. The map shall be amended to delineate the following: 1) All sheets of the map shall be labeled 1MUSR18-80-439 2) The attached Development Standards. 3) The map shall be prepared per Section 23-2-260.D of the Weld County Code. 4) The applicant shall verify and delineate on the map the unmaintained rights -of -way and private easements from the site to and including the connection to County Road 59. Reference the documents creating the right-of-way or the reception numbers for private easements. The access road is not maintained by Weld County. (Department of Public Works). (Department of Public Works) 5) From the southeast corner of Section 11, Township 02 North, Range 64 West, going south, County Road 59 is a paved road and is designated on the Weld County Functional Classification Map as an arterial road which requires 140 feet of right-of-way at full buildout. The applicant shall delineate and label on the site map or plat the future and existing rig ht -of - way (along with the documents creating the existing right-of-way) and the physical location of the road. All setbacks shall be measured from the edge of right-of-way. This road is maintained by Weld County. (Department of Public Works) 6) From the southeast corner of Section 11, Township 02 North, Range 64 West, going north, County Road 59 Section Line is shown to have unmaintained section line right-of-way per the Weld County GIS right-of-way map. The applicant shall delineate the existing right-of-way on the site plan. Show and label the section line Right -of -Way as "CR 59 Section Line Right -Of - Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 7) County Road 26 Section Line may have unmaintained section line right-of-way. The applicant shall verify and delineate the existing right-of-way on the site plan. If the right-of-way exists, show and label the section line Right -of -Way as "CR 26 Section Line Right -Of -Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 8) County Road 61 Section Line may have unmaintained section line right-of-way. The applicant shall verify and delineate the existing right-of-way on the site plan. If the right-of-way exists, show and label the section line Right -of -Way as "CR 61 Section Line Right -Of -Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 9) Show and label the approved access locations, approved access width and the appropriate turning radii (60') on the site plan. The applicant must obtain an access permit in the approved location(s) prior to construction. (Department of Public Works) 10) Show and label a 30 -foot minimum access and utility easement to provide legal access to the parcel on the site plan. (Department of Public Works) 1 MUSR18-80-439 — Public Service Company of Colorado Page 4 of 8 11) Show and label the accepted drainage features. Stormwater ponds should be labeled as "Stormwater Detention, No -Build or Storage Area" and shall include the calculated volume. (Department of Public Works) 12) Show and label the drainage flow arrows. (Department of Public Works) 13) Show and label the parking and traffic circulation flow arrows showing how the traffic moves around the property. (Department of Public Works) 2. Prior to Construction: A. If more than 1 acre is to be disturbed, a Weld County grading permit will be required. (Department of Public Works) 3 Upon completion of Condition of Approval #1 above, the applicant shall submit one (1) paper copy or one (1) electronic copy (.pdf) of the map for preliminary approval to the Weld County Department of Planning Services. Upon approval of the map the applicant shall submit a Mylar map along with all other documentation required as Conditions of Approval. The Mylar map shall be recorded in the office of the Weld County Clerk and Recorder by Department of Planning Services' Staff. The map shall be prepared in accordance with the requirements of Section 23-2-260.D of the Weld County Code. The Mylar map and additional requirements shall be submitted within sixty (60) days from the date of the Board of County Commissioners Resolution. The applicant shall be responsible for paying the recording fee. 4. In accordance with Weld County Code Ordinance 2006-7 approved June 1, 2006, should the map not be recorded within the required sixty (60) days from the date of the Board of County Commissioners Resolution a $50.00 recording continuance charge shall added for each additional 3 month period. 5. The Use by Special Review activity shall not occur, nor shall any building or electrical permits be issued on the property, until the Use by Special Review map is ready to be recorded in the office of the Weld County Clerk and Recorder. 1 MUSR18-80-439 — Public Service Company of Colorado Page 5 of 8 SITE SPECIFIC DEVELOPMENT PLAN USE BY SPECIAL REVIEW PERMIT DEVELOPMENT STANDARDS Public Service of Colorado 1 MUSR18-80-439 1. A Minor Amendment to a Site Specific Development Plan and Use by Special Review Permit No. USR 439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A (Agricultural) Zone District, subject to the Development Standards stated hereon. 2. Approval of this plan may create a vested property right pursuant to Section 23-8-10 of the Weld County Code. 3. All signs shall adhere to Chapter 23, Article IV, Division 2 and Appendices 23-C, 23-D and 23-E of the Weld County Code. 4. The property owner or operator shall be responsible for controlling noxious weeds on the site, pursuant to Chapter 15, Article I and II, of the Weld County Code. 5. The access to the site shall be maintained to mitigate any impacts to the public road, including damages and/or off -site tracking. 6. There shall be no parking or staging of vehicles on public roads. On -site parking shall be utilized. 7. Any work that may occupy and or encroach upon any County rights -of -way or easement shall acquire an approved Right -of -Way Use Permit prior to commencement. 8. Access will be along unmaintained County right-of-way and maintenance of the right-of-way will not be the responsibility of Weld County. 9. The historical flow patterns and runoff amounts on the site will be maintained. 10. Weld County is not responsible for the maintenance of onsite drainage related features. 11. All liquid and solid wastes (as defined in the Solid Wastes Disposal Sites and Facilities Act, 30-20-100.5, C.R.S.) shall be stored and removed for final disposal in a manner that protects against surface and groundwater contamination. 12. No permanent disposal of wastes shall be permitted at this site. This is not meant to include those wastes specifically excluded from the definition of a solid waste in the Solid Wastes Disposal Sites and Facilities Act, 30-20-100.5, C.R.S. 13. Waste materials shall be handled, stored, and disposed in a manner that controls fugitive dust, fugitive particulate emissions, blowing debris, and other potential nuisance conditions. The facility shall operate in accordance with Chapter 14, Article 1 of the Weld County Code. 14. Fugitive dust should attempt to be confined on the property. Uses shall comply with the Colorado Air Quality Commission's air quality regulations. 15. During construction, adequate toilet facilities and handwashing units shall be provided. Portable toilets are acceptable. Portable toilets shall be serviced by a cleaner licensed in Weld County and shall contain hand sanitizers. 16. The operation shall comply with all applicable rules and regulations of the State and Federal agencies and the Weld County Code. 1 MUSR18-80-439 — Public Service Company of Colorado Page 6 of 8 17. Sources of light shall be shielded so that beams or rays of light will not shine directly onto adjacent properties. Sources of light should not cause a nuisance or interfere with the use on the adjacent properties in accordance with the map. Neither the direct, nor reflected, light from any light source may create a traffic hazard to operators of motor vehicles on public or private streets. No colored lights may be used which may be confused with, or construed as, traffic control devices. 18. Building permits may be required, for any new construction or set up manufactured structure, per Section 29-3-10 of the Weld County Code. A building permit application must be completed and submitted. Buildings and structures shall conform to the requirements of the various codes adopted at the time of permit application. Currently the following has been adopted by Weld County: 2018 International Building Codes; 2018 International Residential Code; 2006 International Energy Code; 2017 National Electrical Code; and Chapter 29 of the Weld County Code. A plan review shall be approved, and a permit must be issued prior to the start of construction. 19. The property owner or operator shall be responsible for complying with the Design and Operation Standards of Chapter 23 of the Weld County Code. 20. Necessary personnel from the Weld County Departments of Planning Services, Public Works, and Public Health and Environment shall be granted access onto the property at any reasonable time in order to ensure the activities carried out on the property comply with the Conditions of Approval and Development Standards stated herein and all applicable Weld County regulations. 21. The Use by Special Review area shall be limited to the plans shown hereon and governed by the foregoing standards and all applicable Weld County regulations. Substantial changes from the plans or Development Standards, as shown or stated, shall require the approval of an amendment of the Permit by the Weld County Board of County Commissioners before such changes from the plans or Development Standards are permitted. Any other changes shall be filed in the office of the Department of Planning Services. 22. The property owner or operator shall be responsible for complying with all of the foregoing Development Standards. Noncompliance with any of the foregoing Development Standards may be reason for revocation of the Permit by the Board of County Commissioners. 23. RIGHT TO EXTRACT MINERAL RESOURCES STATEMENT: Weld County has some of the most abundant mineral resources, including, but not limited to, sand and gravel, oil, natural gas, and coal. Under title 34 of the Colorado Revised Statutes, minerals are vital resources because (a) the state's commercial mineral deposits are essential to the state's economy; (b) the populous counties of the state face a critical shortage of such deposits; and (c) such deposits should be extracted according to a rational plan, calculated to avoid waste of such deposits and cause the least practicable disruption of the ecology and quality of life of the citizens of the populous counties of the state. Mineral resource locations are widespread throughout the County and person moving into these areas must recognize the various impacts associated with this development. Often times, mineral resource sites are fixed to their geographical and geophysical locations. Moreover, these resources are protected property rights and mineral owners should be afforded the opportunity to extract the mineral resource. 24. WELD COUNTY'S RIGHT TO FARM: Weld County is one of the most productive agricultural counties in the United States, typically ranking in the top ten counties in the country in total market value of agricultural products sold. The rural areas of Weld County may be open and spacious, but they are intensively used for agriculture. Persons moving into a rural area must recognize and accept there are drawbacks, including conflicts with long-standing agricultural practices and a lower level of services than in town. Along with the drawbacks come the incentives which attract urban dwellers to relocate to rural areas: open views, spaciousness, wildlife, lack of city noise and congestion, and the rural atmosphere and way of life. Without neighboring farms, those features which attract urban dwellers to rural Weld County would quickly be gone forever. 1 MUSR18-80-439 — Public Service Company of Colorado Page 7 of 8 Agricultural users of the land should not be expected to change their long-established agricultural practices to accommodate the intrusions of urban users into a rural area. Well -run agricultural activities will generate off -site impacts, including noise from tractors and equipment; slow -moving farm vehicles on rural roads; dust from animal pens, field work, harvest and gravel roads; odor from animal confinement, silage and manure; smoke from ditch burning; flies and mosquitoes; hunting and trapping activities; shooting sports, legal hazing of nuisance wildlife; and the use of pesticides and fertilizers in the fields, including the use of aerial spraying. It is common practice for agricultural producers to utilize an accumulation of agricultural machinery and supplies to assist in their agricultural operations. A concentration of miscellaneous agricultural materials often produces a visual disparity between rural and urban areas of the County. Section 35-3.5-102, C.R.S., provides that an agricultural operation shall not be found to be a public or private nuisance if the agricultural operation alleged to be a nuisance employs methods or practices that are commonly or reasonably associated with agricultural production. Water has been, and continues to be, the lifeline for the agricultural community. It is unrealistic to assume that ditches and reservoirs may simply be moved "out of the way" of residential development. When moving to the County, property owners and residents must realize they cannot take water from irrigation ditches, lakes, or other structures, unless they have an adjudicated right to the water. Weld County covers a land area of approximately four thousand (4,000) square miles in size (twice the size of the State of Delaware) with more than three thousand seven hundred (3,700) miles of state and County roads outside of municipalities. The sheer magnitude of the area to be served stretches available resources. Law enforcement is based on responses to complaints more than on patrols of the County, and the distances which must be traveled may delay all emergency responses, including law enforcement, ambulance, and fire. Fire protection is usually provided by volunteers who must leave their jobs and families to respond to emergencies. County gravel roads, no matter how often they are bladed, will not provide the same kind of surface expected from a paved road. Snow removal priorities mean that roads from subdivisions to arterials may not be cleared for several days after a major snowstorm. Services in rural areas, in many cases, will not be equivalent to municipal services. Rural dwellers must, by necessity, be more self-sufficient than urban dwellers. People are exposed to different hazards in the County than in an urban or suburban setting. Farm equipment and oil field equipment, ponds and irrigation ditches, electrical power for pumps and center pivot operations, high speed traffic, sand burs, puncture vines, territorial farm dogs and livestock, and open burning present real threats. Controlling children's activities is important, not only for their safety, but also for the protection of the farmer's livelihood. 1 MUSR18-80-439 — Public Service Company of Colorado Page 8 of 8 NOTICE Pursuant to the zoning laws of the State of Colorado and the Weld County Code, a public hearing will be held in the Chambers of the Board of County Commissioners of Weld County, Colorado, Weld County Administration Building, 1150 O Street, Assembly Room, Greeley, Colorado 80631, at the time specified. If a court reporter is desired, please advise the Clerk to the Board, in writing, at least five days prior to the hearing. The cost of engaging a court reporter shall be borne by the requesting party. In accordance with the Americans with Disabilities Act, if special accommodations are required in order for you to participate in this hearing, please contact the Clerk to the Board's Office at (970) 400-4225, prior to the day of the hearing. The complete case file may be examined in the office of the Clerk to the Board of County Commissioners, Weld County Administration Building, 1150 O Street, Greeley, Colorado 80631. E-mail messages sent to an individual Commissioner may not be included in the case file. To ensure inclusion of your e-mail correspondence into the case file, please send a copy to egesick@weldgov.com. DATE: February 4, 2019 TIME: 9:00 a.m. APPLICANT: WJW Properties, LLC, 16350 CR 76, Eaton, Colorado 80615 Public Service Company of Colorado, 1800 Larimer Street, Suite 400 Denver, Colorado 80202 REQUEST: Minor Amendment to Special Use Permit, SUP -439 (115,000 Electric Transmission Line and 115,0000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A (Agricultural) Zone District. LEGAL DESCRIPTION: S1/2, SW1/4 NW1/4, S1/2 SE1/4 NW1/4, S1/2 SW1/4 NE1/4, S1/2 SE1/4 NE1/4 N1/2, SE1/4 NE1/4, excluding the west 100 feet of Section 36, Township 3 North, Range 64 West of the 6th P.M., Weld County, Colorado LOCATION: Approximately 3.4 miles north of the intersection of County Roads 20 and 59 on a private access road (See Legal Description for precise location.) BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO DATED: January 25, 2019 MINOR AMENDMENT TO SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW (USR) APPLICATION FOR PLANNING DEPARTMENT USE DATE RECEIVED: RECEIPT # /AMOUNT # !S CASE # ASSIGNED: APPLICATION RECEIVED BY PLANNER ASSIGNED: Parcel Number 1 2 1 5 - 3 6 _ 0 _ 0 0 _ 0 0 0 (12 digit number - found on Tax I.D. information, obtainable at the Weld County Assessor's Office, or +.ti.y+ _ ,rep! i cn. +'5) Legal Description S21SW4NVV4/S2SE4NW4/S2SW4NE41S2S E4, Section 36 , Township 3 North, Range 64 West Zone District: A , Total Acreage: 436 , Flood Plain: na , Geological Hazard: na Airport Overlay District: na FEE OWNER(S) OF THE PROPERTY: Name: WJW Properties, LLC Work Phone # 970.454.3492 Home Phone # Email Address: 16350 WCR 76 Address; City/State/Zip Code Eaton. CO 80615 Name: -- Work Phone # Home Phone # Email Address: Address;_ City/State/Zip Code APPLICANT OR AUTHORIZED AGENT (See Below; Authorization must accompany applications signed by Authorized Agent) Name: Jeff Walker (Public Service Compan of Colorado) Work Phone # 303.571.7451 Home Phone # Email jefirey.a.welker(utixcelenergy com Address: 1800 Larimer Street, Suite 400 Address: City/State/Zip Code Denver, CO 80202 PROPOSED AMENDMENT Amend SUP -439 to allow additional equipment on substation easement. Existing easement is too small for additional equipment. The use of the substation will not change. I (We) hereby depose and state under penalties of perjury that all statements, proposals, and/or plans submitted with or contained within the application are true and correct to the best of my (our)knowledge. Signatures of all fee owners of property must sign this application. If an Authorized Agent signs, a letter of authorization from all fee owners must be included with the application. If a corporation is the fee owner, notarized evidence must be included inddcatiny tbatfthe signatory has to legal authority to sign for the corporation. 1/1,' ,l ,._ri Signet ner or Authorized A. ent Date Signature: Owner or Authorized Agent Date MEMORANDUM TO: PRE18-0229; Case File, pre -application DATE: August 9, 2018 FROM: Michelle Wall, Planning Technician SUBJECT: Pre -Application Meeting prior to submitting Attendees: Jeff Walker, Xcel Energy, Applicant Patrick Kuretich, Xcel Energy Jose Gonzalez, Building Chris Gathman, Planning Evan Pinkham, Public Works Michelle Wall, Planning On Thursday, August 9, 2018 an informal discussion took place at the Greeley Administrative Offices Conference Room regarding a proposed amendment to add distribution equipment to existing Ennis Substation USR-439. (The legal description is S2 Section 36, T3N, R64W of the 6th P.M.) Background Information: Applicant is proposing additional distribution equipment at Ennis Substation. The new equipment will serve customer electricity demand. The project is not required for the transmission of electricity but instead is for the distribution of electricity directly to a customer. The project will add a second bank to the existing Ennis Substation. Hours of operation are 24/7 and is an unmanned operation. One maintenance worker will perform an inspection approximately once a month. Applicant owns the easement. They will change the description. Building Department Staff was unavailable; however please contact Jose Gonzalez at 970-353-6100 ext. 3540 for further direction. Building permits may be required, per Section 29-3-10 of the Weld County Code. Currently the following has been adopted by Weld County: 2012 International Residential Code, 2012 International Building Code, 2012 International Mechanical Code, 2012 International Plumbing Code, 2012 International Plumbing Code, 2012 International Fuel Gas Code, 2006 International Energy Conservation Code, and 2017 National Electrical Code. A building permit application must be completed and two complete sets of engineered and architectural plans bearing the wet stamp of a Colorado registered engineer or architect must be submitted for review for each structure. Pre -Manufactured non-residential structures are required to comply with State of Colorado Resolution 35 requirement. A complete code analysis prepared by a registered design professional is required and shall be submitted with All Commercial Building Permit Applications to Weld County. All new Commercial Building Projects require Fire District Notification (letter or email form). Proof shall be submitted with Commercial Permit applications. Final Fire District Approval is also required prior to issuing a Certificate of Occupancy and or closing a building permit. Building department staff strongly recommends a pre -application building permit submittal meeting, and, or a pre -construction meeting with Building Department staff for an overview of permit requirements. Please call 970-400-6100 and ask for a Plans Examiner. Building permit requirements can be found on the web -site link below: https://www weldgov.com/departments/buildinglbuilding permit/construction handouts more information/ Health Department Staff was unavailable; however please contact Lauren Light at 970-400-2211 for further direction. Waste handling: Waste materials shall be handled, stored, and disposed in a manner that controls blowing debris, and other potential nuisance conditions. The applicant shall operate in accordance with Chapter 14, Article 1 of the Weld County Code. Please answer the following if applicable; indicate if there will be washing of vehicles or equipment, fuel storage, maintenance of vehicles or equipment, floor drains in shop, air emissions permit. Onsite dust: Fugitive dust should attempt to be confined on the property. Uses on the property should comply with the Colorado Air Quality Commission's air quality regulations. Sewage disposal information: Include in application how sewage disposal will be accommodated. If using a septic system provide a copy of the septic permit. Either utilize the County website www.co weld.co.usimaps/propertyportal/ or call (970-304-6415) or stop by EH front counter and request a copy. Potable water information: Include in application how potable water will be provided. Provide a will serve letter or water bill from the water district or provide a copy of well permit. Portable toilets and Bottled water can be used for employees and customers per policy below: TO DEFINE WHEN PORTABLE TOILETS AND COMMERCIALLY BOTTLED WATER ARE ALLOWED Purpose: To define when portable toilets and commercially bottled water are allowed. Policy: Bottled water from a commercial source is allowed in the following circumstances: 1. Temporary or seasonal uses that are utilized 6 months or less per year (for example recreational facilities, firework stands, farmers markets) 2. Gravel mines 3. 10 or less customers or visitors per day And/or one of the following: 4. 2 or less full time (40 hour week) employees located on site 5. 4 or less part time (20 hour week) employees located on site 6. Employees or contractors that are on site for less than 2 consecutive hours a day Policy: portable toilets are allowed in the following circumstances: 1. Temporary or seasonal uses that are utilized 6 months or less per year (for example recreational facilities, firework stands, farmers markets) 2. Gravel mines 3. 10 or less customers or visitors per day And/or one of the following: 4. 2 or less full time (40 hour week) employees located on site 5. 4 or less part time (20 hour week) employees located on site 6. Employees or contractors that are on site for less than 2 consecutive hours a day Public Works Staff comments for pre -applications are provided as a courtesy to the applicant. While we strive to help identify as many potential issues upfront during the pre -application meeting we cannot anticipate every issue that may come up during the formal application process. Parcel(s): 121536000001 The project proposes: Add distribution equipment to existing Ennis Substation USR-439 COMMENTS ROADS AND RIGHTS -OF -WAY County Road 59 is a paved road and is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as a(n) arterial road, which requires 140 feet of right-of-way. The applicant shall delineate on the site map or plat the future and existing right-of-way and the physical location of the road. If the right-of- way cannot be verified it shall be dedicated. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, the required setback is measured from the future right-of-way line. Be aware that physical roadways may not be centered in the right-of-way. This road is maintained by Weld County. Per Chapter 12, Article 4, Section 12-4-30.B, a Weld County Right -of -Way Use Permit is required for any project that will be occupying, constructing or excavating facilities within, and/or encroaching upon, any County rights -of -way or easement. Right -of -Way Use Permit instructions and application can be found at https://www.weldqov.com/departments/publicworks/permits/. Weld County will not replace overlapping easements located within existing right-of-way or pay to relocate existing utilities within the County right-of-way. ACCESS Table 12A.2 Minimum Access Spacing Criteria (Feet) Access Element Arterial Collector Local Distance between intersections Signalized Unsignalized 2,640 1,320 N/A 1,320 N/A 330 Distance between accesses and intersections 660 660 330 Distance between access points 660 330 150 Distance between access points in subdivisions 660 330 75 Per Chapter 12, Article 5, Section 12-5-30, an Access Permit is required for access to Weld County maintained roadways. We strongly encourage you to discuss your access with Public Works prior to laying out your site plan to ensure the approved accesses are compatible with your layout. For new accesses and/or change of use of an existing access, the fee and photos are required (photo looking left and right along roadway from the access point and looking in to and out of the access point). These photos are used to evaluate the safety of the access location. Access permit instructions and application can be found at https //www.weldgov com/departments/public works/permits/. Chapter 6, Sections 6.3, 6.4 and 6.5 of the Weld County Engineering and Construction Criteria offer access design guidance, which can be accessed at: https://www weldgov.com/departments/public works/enqineerinq/. Appendix 12-A of the county code can also be referenced. Existing access points with change of use or new access points may or may not be granted. Questions pertaining to access permits or access design shall be directed to the Public Works Department. Application Fee: temporary $75, single residential $75, small commercial $75, industrial $150, field $0, large commercial $150, subdivision $150. This can be accessed at: https://www weldgov.com/departments/public works/engineering/. For shared accesses, Public Works strongly recommends the property owner establish an access road maintenance agreement so future owners of the properties will be aware of their requirements for shared maintenance of the access road. This is not a requirement for the recorded exemption but is recommended to avoid property owner conflicts in the future. Per Chapter 12, Appendix 12A.4.1 of the Weld County Code, an access approach that is gated shall be designed so that the longest vehicle (including trailers) using the access can completely clear the traveled way when the gate is closed. In no event, shall the distance from the gate to the edge of the traveled surface be less than 35 feet. TRACKING CONTROL POLICY Per Chapter 12, Appendix 12A.10.1, traffic volumes to the proposed facility may require the installation of a tracking control device and/or a minimum of four inches of compacted recycled asphalt or aggregate road base. Tracking control is required to prevent tracking from the site onto public roadways. Temporary Tracking Control shall be used during construction unless permanent tracking control is installed ahead of construction activities. Recycled concrete is not allowed in County right-of-way. Tracking control devices can be double cattle guards or rip rap (6" washed rock). Tracking control for unmaintained public right-of-way is required just prior to entering publicly maintained roadways. A variance request for alternatives to the tracking control requirement can be submitted to Public Works for review and consideration. Less than 20 passenger vehicle round trips/day, no upfront tracking control requirements. TRAFFIC IMPACT STUDY REQUIREMENTS As part of the development review process, all new commercial or residential developments will be required to submit a TIS that is prepared, stamped, and signed by a professional engineer licensed in the State of Colorado, unless the TIS is waived by Public Works. Traffic Narrative: 1. Describe how many roundtrips/day are expected for each vehicle type: Passenger Cars/Pickups, Tandem Trucks, Semi-Truck/Trailer/RV (Roundtrip = 1 trip in and 1 trip out of site) 2. Describe the expected travel routes or haul routes for site traffic. 3. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the north, 20% from the south, 30% from the east, etc.) 4. Describe the time of day that you expect the highest traffic volumes. IMPROVEMENTS AND ROAD MAINTENANCE AGREEMENT Public Works may require an Improvements Agreement for one or all the following reasons: • Off -Site Public Improvements • Road Maintenance Agreement • Construction Maintenance Agreement • Access Improvements Agreement • On -Site Improvements for Subdivisions/PUDs An Improvements Agreement is required for sites with required offsite improvements per Chapter 12, Article 5, Section 12-5-60. Collateral is required to ensure the improvements are completed, and maintained. Improvements/Road Maintenance Agreement: An example agreement is available at: https://www weldgov.com/UserFiles/Servers/Server 6/File/Departments/Public%20Works/DevelopmentRevie w/sprusr.pdf. It will detail the approved haul route(s), outline when offsite improvements will be triggered, and include a maintenance agreement for the haul routes. Possible mitigations included in the road maintenance agreement may include but are not limited to: dust control, specified haul routes, damage repairs, and future improvement triggers. DRAINAGE REQUIREMENTS: Weld County has recently adopted a new stormwater drainage code located under Chapter 23, Article 12 Storm Drainage Criteria. A list of professional engineering consultants is available if you need help finding an engineer to assist you with your project at the following link http://www.co.weld.co.us/Departments/PlanningZoning/Engineering.html. Please contact the Department of Planning Services/Development Review Engineering for questions or assistance 970-353-6100. URBANIZING VS NON -URBANIZING DRAINAGE AREA: This area IS within a Non -Urbanizing Drainage Area: Non -Urbanizing Drainage Areas generally require detention of runoff from the 1 -hour, 100 -year, storm falling on the developed site and release of the detained water at the historic runoff rate of the 1 -hour, 10 -year storm falling on the undeveloped site. Detention pond summarized in a drainage report is required unless the project falls under an exception to stormwater detention requirements per code section 23-12-30 F.1. To avoid holding up case processing, a minimum of either a preliminary drainage report or a drainage narrative with exception as shown below must be submitted with 7 -day case submittal information. Detention Pond Requirements: 1. A Drainage Report and Detention Pond Design shall be completed by a Colorado Licensed Professional Engineer and adhere to the drainage related sections of the Weld County Code. The Drainage Report must include a Certification of Compliance, stamped and signed by the PE, which can be found on the engineering website. A general Drainage Report Guidance Checklist is available on the engineering website. A Preliminary Drainage Report or a qualifying exception and Drainage Narrative shown below must be submitted for review at the time of the application. Historic Flows: The applicants will be required to maintain the historic drainage flows and run-off amounts that exist from the property. GRADING PERMIT: A Weld County Grading Permit will be required if disturbing more than 1 acre. Grading Permit applications are accepted after the planning process is complete (map recorded). An Early Release Request Form may be entertained only after the applicant and Planning Department have reviewed the referral and surrounding property owner comments. The Early Release Request may or may not be granted depending on referral comments and surrounding property owner concerns. Contact an Engineering representative from the Planning Department for more information. Application Fees: 1-5 Acres/ $50, 5.1 - 20 Acres/$100, 20.1 Acres or Greater/$200 + $1 per acre over 20. A Construction Stormwater Permit is also required with the State for disturbing more than 1 acre. Contact: Colorado Department of Public Health and Environment, Water Quality Control Division, Permit Support Staff at 303-692-3517. SITE MAP REQUIREMENTS A Site Plan will be required identifying the following (if applicable): o Show and label location of existing road, existing road right-of-way, future road right-of-way, and easements o Show and label the unmaintained section line right-of-way o Show and label location of the access(es) and label with access permit number o Show and label the access turning radii (Residential - 25' Commercial - 60') o Show and label the approved tracking control o Show and label location of drainage related features i.e. detention pond(s), ditches, etc... Detention ponds shall be labeled as "No Build/Storage Area" and include design volume o Show and label the drainage flow arrows showing how the stormwater flows across the property o Show and label the parking and traffic circulation flow arrows showing how the traffic moves around the property Please contact the following staff regarding the following Public Works issues: Access Permits: Morgan Gabbert mgabbert@weldgov.com 970-400-3778 Improvements Agreements: Evan Pinkham epinkham@weldgov.com 970-400-3727 Traffic Studies: Dawn Anderson dranderson@weldgov com 970-400-3736 M54 Areas: Lyndsay Holbrook Iholbrook@weldgov.com 970-400-3788 Right -of -Way Permits: Amy Joseph ajoseph@weldgov.com 970-400-3764 Drainage: Hayley Balzano hbalzano@weldgov.com 970-400-3738 Planning Department Additional fees may be included with the Building Permit such as Road Impact, County Facilities and Drainage fees. Please refer to the handout provided. Screening of the parking area or outdoor storage may be required from any adjacent landowners or public rights -of -way. Weld County has a Coordinated Planning Agreement (CPA) with the Town of Keenesburg. The Planning Director will contact the Town Manager to give notice of this pre -application meeting. Staff advised the applicants to contact the Town of Keenesburg regarding possible land use permitting including possible annexation. Please identify any proposed lighting or signs on the Site Plan. Lighting needs to be downcast and shielded. A 16sf sign is allowed in the Agricultural Zone District; however if there are potentially any additional or larger signs please include those in the application. Prior to submittal of the County land use application, please submit evidence of State permits as in the case of Mining permits. Staff urged the applicant to contact staff for any questions: Planner on Call available Monday through Friday 7:30 a.m. to 4:30 p.m. or contact Chris Gathman at 970-400- 3537 or cothman@weldgovcam. USR-439 overlaps USR-1285 on the property. Applicant will need to do a partial vacation on USR-1285. Staff explained the applicant will need to apply for a subdivision exemption to define the boundaries of the substation site. Staff explained the Minor Amendment to a Use by Special Review Permit (MUSR) process. The applicant shall submit 1 packet for a 7 day completeness review. After the 7 day completeness review the applicant will be informed of what items are still required to make the application complete. Staff requested that the applicant submit the remaining material in electronic form. Upon submittal of a completed application it will be sent out for referral for 28 days. The applicant will then meet with their Planner to discuss the referrals and address as many of the referrals as possible. This application will be administratively approved unless a greater number than 30% of the surrounding property owners object. If this is the case, the Board of County Commissioners will hear the case and either approval or deny the application. The above notes are provided as a courtesy to the applicant. While we strive to help identify as many potential issues upfront during the pre -application meeting we cannot anticipate every issue that may come up during the formal application process. The information contained herein has been placed on file with the Department of Planning Services. The pre -application is valid for a period of one (1) year from the date of pre - application. If a formal application is not received following the time period specified herein the Planning Department reserves the right to require a new pre -application meeting. Please note that all land use, building and impact fees are subject to change throughout this time period. End memorandum. From: Chris Gathman To: "Walker, Jeffrey A" Subject: RE: Determination on Innis Substation Expansion Date: Tuesday, August 21, 2018 5:14:00 PM Dear Jeff, Staff discussed the proposed expansion for the Innis Substation. We have determined that this can be process as a USR Minor Amendment application. Regards, Chris Gathman Planner III Weld County Department of Planning Services 1555 N. 17th Avenue tel: 970-400-3537 fax: 970-400-4098 Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited. PUBLIC SERVICE COMPANY OF COLORADO SECTION 23-2-285 USR MINOR AMENDMENT APPLICATION ENNIS SUBSTATION UPGRADE PROJECT WELD COUNTY APPLICATION REQUIREMENTS It is the responsibility of the applicant to meet the application requirements outlined in Section 23-2-280.5 of the Weld County Code. No Minor Amendment application shall be processed until all required items on the Minor Amendment submittal checklist have been completed and submitted to the Department of Planning Services. To approve a Minor Amendment Process the Planning Services Director must consider the following review criteria and find that each criterion has been met or determined to be inapplicable: a. The proposed change(s) will be compatible with existing and allowed uses in the surrounding area and be in harmony with the neighborhood; The proposed change will be compatible with the existing and allowed uses. The additional equipment in Ennis Substation will provide reliable service for existing and proposed uses allowed in the Agricultural zone district (A). The additional equipment will operate at the distribution level (below 69,000 Volts). A Use by Special Review permit is required for facilities necessary for the transmission of electricity. The proposed equipment is necessary for the distribution of electricity. That is, it will be distributed at 12,470 volts (12.47kV) directly to the customer. b. The proposed change(s) is consistent with the County Comprehensive Plan pursuant to Chapter 22 of the Weld County Code (WCC); Electrical substations are allowed uses with a Use by Special Review permit in the Agricultural zone district (A). The proposed change is consistent with the County Comprehensive Plan. The pertinent sections of the County Comprehensive Plan are identified below. Sec. 22-2-10. - Agriculture. D. Extraction of natural resources is an important part of the economy of the County. Such extraction operations should minimize the impacts to agricultural lands and agricultural operations. The project will help deliver reliable electricity to a mineral extraction company. Using electricity to operate equipment used in mineral extraction helps reduce adverse air quality and noise impacts of these operations. Sec. 22-2-20. - Agriculture goals and policies. H. A. Goal 8. Ensure that adequate services and facilities are currently available or reasonably obtainable to accommodate the requested new land use change for more intensive development. 5. A. Policy 8.5. The land use applicants should demonstrate that public service providers, such as but not limited to schools, emergency services and fire protection, are Page 1 of 3 PUBLIC SERVICE COMPANY OF COLORADO SECTION 23-2-285 USR MINOR AMENDMENT APPLICATION ENNIS SUBSTATION UPGRADE PROJECT WELD COUNTY APPLICATION REQUIREMENTS informed of the proposed development and are given adequate opportunity to comment on the proposal. PSCo is obligated to serve existing customers in its service territory. This project helps provide reliable delivery of electric service to an existing customer within PSCo's service territory. Sec. 22-2-70. - Industrial development. C. It is essential to have supporting utilities, public services and related facilities for any industrial development. The fiscal limitations of both the private and public sector cannot sustain indiscriminate development without regard for how such services and facilities will be provided. Mineral extraction is an allowed use in the Agricultural zone district. PSCo is obligated to serve existing customers in its service territory. This project helps provide reliable delivery of electric service to an existing customer within PSCo's service territory. Sec. 22-3-10. - Public facilities and services. A. The effective and efficient delivery of adequate public services is one (1) of the primary purposes and benefits of effective land use planning. Public services are government services, such as police and fire protection, health services and welfare and educational services and programs. Public facilities are physical structures and infrastructure, such as schools, libraries, roads, maintenance facilities, water distribution systems and sewage treatment facilities. Municipal governments, County governments, special districts and private companies are capable of providing such services and facilities. PSCo is obligated to serve existing customers in its service territory. This project helps provide reliable delivery of electric service to an existing customer within PSCo's service territory. Sec. 22-5-100. - Oil and gas Goals and Policies. A. OG. Goal 1. Promote the reasonable and orderly exploration and development of oil and gas mineral resources. 1. OG. Policy 1.1. The County should encourage cooperation, coordination and communication between the surface owner and the mineral owner/operators with respect to any developments of either the surface or the mineral estate. The operator, property owner and PSCo are working together to provide upgraded distribution service in the area. The property owner has co-signed this request for a USR Minor Amendment. B. OG. Goal 2. Ensure that the extraction of oil and gas resources conserves the land and minimizes the impact on surrounding land and the existing surrounding land uses. Page 2 of 3 PUBLIC SERVICE COMPANY OF COLORADO SECTION 23-2-285 USR MINOR AMENDMENT APPLICATION ENNIS SUBSTATION UPGRADE PROJECT WELD COUNTY APPLICATION REQUIREMENTS 3. OG. Policy 2.3. Existing service roads should be used to provide access for oil and gas and other mineral extraction activities. PSCo will use its existing access easement to access the substation site. 8. OG. Policy 2.8. Oil- and gas -drilling activities should be planned to accommodate current and future surface subdivision activities to the extent such development can reasonably be anticipated. PSCo is designing the substation to accommodate expected load growth from all customers for the foreseeable future. c. The proposed change(s) will not result in a substantial adverse impact on other property in the vicinity of the subject property; The substation will not have adverse impacts on the larger parcel. PSCo will work with the property owner to create an appropriate final design of the substation. d. The recommendations of referral agencies have been considered; So noted. e. Not deemed to be a major change; The existing equipment was installed in the early 1980s. The substation is on a 0.58 - acre easement within a 436 -acre parcel. The new and existing equipment will occupy an approximately eight -acre area. The increase in the easement area is mostly due to changes in utility industry standards that require greater clearances from energized equipment. The greater clearances improve safety for maintenance personnel. PSCo is working with Weld County Public Works Department to determine if the new easement area will contain on -site storm water detention. PSCo is preparing to submit a subdivision exemption and a partial vacation of SUP -439 to make a clean separation of the substation use and the uses on the larger parcel. The substation was originally built on land owned by the State of Colorado to provide electricity to a specific mining operation. There was not a need to create a separate parcel for the substation until now. PSCo will work with Weld County planning staff and the property owner to create a separate parcel for the substation and modify the USR permit. Although a new parcel will be created, the use will not change. f. Must be consistent with the original development standards. PSCo will follow the development standards, as modified, contained in SUP -439.80.29 Page 3 of 3 f 1 )(eel Fnerave RESPONSIBLE BY NATURE"' August 1, 2018 Ms. Michelle Martin Weld County Department of Planning Services 1555 N. 17th Avenue Greeley, CO 80631 Ms. Martin, 1800 Larimer Street, Suite 400 Denver, CO 80202 Public Service Company of Colorado (PSCo) is submitting this Pre -Application form for additional distribution equipment at its Ennis Substation approximately five miles north of Keenesburg, Colorado. The new distribution equipment will serve a potential customer's electricity demand. Ennis Substation is located in the south half of Section 36, Township 3 North, Range 64 West of the 6th Principal Meridian in unincorporated Weld County. This project involves only distribution equipment. This project is not required for the transmission of electricity. The Weld County Code makes a clear distinction between transmission service and distribution service. This project is solely for the distribution of electricity directly to a potential customer. Weld County Code, Section 23-1-90 Definitions STRUCTURE: Anything that is built, constructed or erected, an edifice or building of any kind, or any piece of work artificially built up or composed of parts joined together in some definite manner, but not including poles, lines, cables or distribution facilities of public utilities. (Emphasis added) SUBSTATION: Any facility designed to provide switching, voltage transformation or voltage control required for the transmission of electricity which has an incoming or outgoing power line which is more than sixty-nine (69) kV. (Emphasis added) Please contact me at your earliest convenience if you have any questions or comments on this application. Sincerely, Jeff Walker Senior Agent Ennis Substation Distribution Upgrade f 1 )(eel Fnerave RESPONSIBLE BY NATURE", 1800 Larimer Street, Suite 400 Denver, CO 80202 3. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the north, 20% from the south, 30% from the east, etc.) Most, if not all, of the maintenance trips will come from the south because of the project site's remote location and the proximity of I-76. The travel distribution is expected to remain the same as the current travel distribution. 4. Describe the time of day that you expect the highest traffic volumes. There will be no noticeable traffic impacts due to maintenance visits to the substation. The substation will not have on -site staff. Maintenance staff will visit the site approximately once each month. The length of the visit depends on whether it is a general inspection or to address a specific item. The time of day for maintenance visits is expected to remain the same as the current time of day. The extremely low volume of trip generation that currently exists and that is expected to continue to exist does not warrant a traffic analysis. Therefore, PSCo is requesting a waiver. Please contact me at your earliest convenience if you have any questions or comments on this application. Thank you for your consideration. Sincerely, Jeff Walker Senior Agent Ennis Substation PRE APPLICATION REVIEW REQUEST • The first meeting with the County's Development Review Team is a Pre -Application review meeting. Anyone with a development idea can schedule a Pre -Application review meeting to get feedback on their idea. Pre - Application meetings are free and are meant to assist property owners and applicants in understanding what is required during development review. • At the Pre -Application meeting, members of various departments will offer comments on the development proposal. Based on the input from the meeting the applicant can then decide if they would like to move forward with a formal Land Use application. • Pre -Application reviews are typically held Thursdays and Fridays of any given week at the planning department offices at the address at the bottom of this form. Submit the Pre -Application review request form, questionnaire, and map to the planning department. A planner will contact the applicant and set up a date and time for the Pre -Application meeting. • The application can be mailed, emailed to Michelle Martin (mmartin@weldgov.com), faxed to 970-304-6498, or dropped off at the Planning Department at 1555 N. 17th Ave, Greeley, CO, 80631. • The week following the Pre -Application meeting, the applicant will receive meeting minutes summarizing the requirements that are specific to the project discussed during the meeting. The comments, from the meeting minutes, assist you in preparing the detailed components of your formal Land Use application. Contact Information: OFFICE USE ONLY Case Number: Planner: Date and time of meeting: Name Jeff Walker Phone 303.571.7451 Fax 303.294.2088 Email jeffrey.a.walker@xcelenergy.com Address 1800 Larimer Street, Suite 400 Project Description Add distribution equipment to existing Ennis Substation to serve customer load. Pronertr► Information: Section -Township - Range Sec 36, T3N, R64W Zone District A Parcel Number 1215360000014 Acreage 436 Site Address NA Water Source NA Legal Description NA SeweriSeptic NA Owner Name WJW Properties, LLC (PSCo owns easement for Ennis Substation, transmission line and access Is this property currently in violation? Yes No Case Number Thursday p.m. Preferred date and time for meeting (Thursday or Friday): a.m. or p.m. • View the Weld County Code https://www.weldqov.com/ • View the Weld County Property Portal https://www.co.weld.co.us/maps/propertyportal/ • View other Weld County Planning Cases - E -permit center httpsPaccela-aca.co.weld.co.us/citizenaccess/ 7/21/2017 1 Weld County Department of Planning Services I Development Review 1555 N. 171h Avenue, Greeley, CO 80631 I Ph: 970-353-6100 I Fax: 970-304-6498 www.co.weld.co.us/Departments/PlanningZoning XCEL ENERGY ENNIS SUBSTATION DISTRIBUTION UPGRADE Planning Questions: Planner on Call 970-353-6100 1. Explain, in detail, the proposed use of the property. The project will add a second bank to the existing Ennis Substation to serve potential customer load. 2. What are the hours and days of operation? (e.g. Monday thru Friday 8:00 a.m. to 5:00 p.m.) The facility will maintain the current twenty-four hours per day operation schedule. Not staffed. 3. List the number of full-time and/or part-time employees proposed to work at this site. Zero 4. If shift work is proposed include the number of employees per shift. NA 5. List the number of people who will use this site. Include contractors, truck drivers, customers, volunteers, etc. One maintenance worker will perform an inspection approximately once per month. 6. If this is a dairy, livestock confinement operation, kennel, etc., list the number and type of animals. NA. The project does not include any animals. 7. Describe the type of lot surface and the square footage of each type. (e.g. asphalt, gravel, landscaping, dirt, grass, buildings) The existing surface is gravel. The new surface area will be Class VI road base or similarly -sized gravel. Engineering Questions: 970-353-6100 1. Describe how many roundtrips/day are expected for each vehicle type: Passenger Cars/Pickups, Tandem Trucks, Semi-Truck/Trailer/RV (Roundtrip = 1 trip in and 1 trip out of site) Zero. One vehicle will enter the facility approximately once each month. 2. Describe the expected travel routes for site traffic. Traffic is expected to use Weld County Road 59 to Coors Road to PSCo's access easement. 3. Describe the travel distribution along the routes (e.g. 50% of traffic will come from the north, 20% from the south, 30% from the east, etc.) One hundred percent of traffic will come from the south on Weld County Road 59 to Coors Road to PSCo's access easement. 4. Describe the time of day that you expect the highest traffic volumes from above. The single maintenance check will likely be between 8:00 a.m. and 5:00 p.m. 5. Describe where the access to the site is planned. Existing access to the site will be maintained along Weld County Road 59, Coors Road and PSCo's access easement area. 6. Describe the plans or containment for the stormwater runoff. Stormwater will be contained on -site to the extent necessary. Environmental Health Questions: 970-304-6415 1. What is the drinking water source on the property? If utilizing a drinking water well include the well permit number. NA. No drinking water will be used. The facility will not be occupied. 2. What type of sewage disposal system is on the property? If utilizing an existing septic system provide the septic permit number. Page 1 of 2 7/31/2018 XCEL ENERGY ENNIS SUBSTATION DISTRIBUTION UPGRADE NA. No waste water will be generated. 3. If storage or warehousing is proposed, what type of items will be stored? NA. The facility will not have storage facilities. Building Questions: 970-353-6100 1. List the type, size (square footage), and number of existing and proposed structures. No buildings will be used. Additional electrical distribution equipment will be added to the substation. 2. Explain how the existing structures will be used for this USR? The existing electrical equipment will remain in service. 3. List the proposed use(s) of each structure. The equipment will service electrical distribution activities. MAP: Show and label the following items: 1. Existing and proposed structures, sizes and uses. 2. Existing and proposed parking with dimensions - NA 3. Nearest public roads 4. Proposed and existing access points 5. Property boundary Page 2 of 2 7/31/2018 EXHIBIT A SITE MAP WASTE MANAGEMENT CORP I WASTE MANAGEMENT CORP, OBA BUFFALO RIDGE LAND FILL COORS ENERCi. CO 21!I59rLaw La4 a a n.cwna.�..rse. t GUTTERSEN RANCHES LLC Ennis Substation Distribution Upgrade Parcel Overview N Xcel Energy RESPONSIBLE BY NATURE'S Existing Substation Easement Area Exisiting Transmission Line - 115kV Proposed Substation Eastment Area l Property Boundary N C ..necy Stan0.nd Land R1ph% Dab W14201k Imagery NAP WI 1.ananrc.onFull.4ant CFDI Vans. May 201$ Petal. - LANDP •N, odis Map Area 0ocum.rl Path N 1D1• .cI Weahau..11 D 6,6aalsocanm.L9ADa1l,e:n ad. 24.30 Oven, towmoo EXHIBIT B SITE PLAN IX LLI o - w X - O z 0 O V) o m o a) LLI ~ Z O o _- - - -_ Lu -- ---- z_ A B C D - -LLI Z_ 115 115 115 115 130'-9" 116'-0" 48'-0" 60'-0" 90'-0" x 25'-0" > 16-0" - > 20'-0" - > 69'-9" I I I I 20'-0" 20'-0" 45'-0" 5'-0" I I _. 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I I I I I ' , _ I , I - , - - I - I I I I -' , I I I ------- I `----- �__ -I-' _ _ _I I I ` ` - - - - - - - - - - - - - - - N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N o 'n I I I I I L _L I " I'i' I 444'-9" I I I I I I o) I I I I I I I I I I I I I I ,- , / / // / PRELIMINARY / / NOT FOR CONSTRUCTION / ' , L / ISSUED BY ENGINEERING DEPT FOR: PRELIMINARY 0 20' 40' 60' 80' 1 fl' THIS MAP/DOCUMENT IS A TOOL TO ASSIST EMPLOYEES IN THE PERFORMANCE OF THEIR JOBS.YOUR PERSONAL SAFETY IS PROVIDED FOR BY USING SAFETY PRACTICES, PROCEDURES AND EQUIPMENT AS DESCRIBED IN THE SAFETY TRAINING PROGRAMS, MANUALS AND SPARS. INTERNAL INFORMATION: DO NOT COPY OR DISTRIBUTE WITHOUT EXPRESS WRITTEN CONSENT FROM XCEL ENERGY SCALE IN FEET 1 - 20'GENERAL ENNIS SUBSTATION ENNI a ARRANGEMENT Cl ULTIMATE PLAN r. CC REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION SCALE REV n 7 XcelEnergy° 0017-901.001 S01 i"=2fl'_fl" 0 0 2019/07120 NEW 3 BANK SUB LAYOUT r I` EXHIBIT C LAND RIGHTS DOCUMENTS 947 1868639 sEP.10198t BOOK TIECEPTION Q- I t tr , , ,1 MARY ANN FEUIRSTE1N, Clark and Recorder, Weld County, Color fo RIGHT OP WAY N0 . 2422, Book 24 1. 1. THIS INDENTURE, Made this 6th day of January, 1981, between 2. the STATE OF COLORADO, acting by and through the STATE BOARD OF LAND 3. COMMISSIONERS, party of the first part and PUBLIC SERVICE COMPANY OF .-a 4. COLORADO, P. 0. Box 840, Denver, CO 80201, party of the second part: WITNESSETH 1. 2. WHEREAS, Party of the second part has made application to 2. the said Board of Land Commissioners for a right-of-way over, upon, under, 3. and across the surface of certain portions of school lands as hereinafter 4. described for the purpose of constructing, reconstructing, operating, and 5. maintaining a 115 kV transmission line, a substation site, and an access 6. road, and 1. 3. WHEREAS, Said State Board of Land Commissioners has, in 2. manner and form as provided by statute, granted such right-of-way for the 3. purpose aforesaid and none other, upon the terms and conditions set forth 4. herein, and has duly authorized the proper officers of said State to execute 5. this indenture: 1. 4. NOW, THEREFORE, THESE PRESENTS WITNESSETH, That the said 2. party of the first part, in consideration of the premises, and in the 3. further consideration of the sum of two hundred forty-three and no/1O0 4. Dollars ($243.00), lawful money of the United States, by second party to 5. first party in hand paid, the receipt whereof is hereby confessed and 6. acknowledged, has granted and by these presents does grant unto the party 7. of the second part, its successors, and assigns, a right-of-way for the 8. purpose of constructing, reconstructing, operating, and maintaining a 9. a 115 kV transmission line, a substation site, and an access road, upon, 10. over, under, and across the surface of those certain portions of school 11. lands described as follows: 947 186839 BOOK ....... RECEPTION-:.. ........ Y �y u►sq In the Southwest One -quarter (SW4) of Section Thirty-six (Sec. 36), Township Three North (T 3 N), Range Sixty-four West (R 64 W). Being a right-of-way for a substation, described by metes and bounds as follows: Beginning at a point, whi..h point bears South 67° 06' 29" East a distance of 206.21 feet from the west quarter corner of said Sec. 36; Thence North 89° 45' 37" East a distance of 136.00 feet to a point; Thence South 00O 31' 06" West a distance of 186.93 feet to a point; Thence South 89° 46' 15" West a distance of 136.00 feet to a point; Thence North 00° 31' 07" East a distance of 186.90 feet to the point of beginning. Containing 0.58 acres, more or less. Also Being a right-of-way for a 115 kV transmission line des- cribed by metes and bounds as follows: Beginning at a point on the west boundary of said Sec. 36, which point bears South 000 33' 46" West along said west boundary, A distance of 225.39 feet from the west quarter corner of said Sec. 36; Thence continuing South 00° 33' 46" West a distance 75.00 feet to a point on the west boundary of said Sec. 36; Thence North 89° 46' 15" East a distance of 326.93 feet to a point; Thence North 000 31' 06" East a distance of 32.50 feet to the southeast corner of the said substation site; Thence South 89° 46' 15" West along the south boundary of said substation a distance of 136.00 feet to the southwest corner of said substation; Thence North 00° 31' 07" East along the west boundary of said substation a distance of 42.50 feet to a point; Thence South 89 ° 46' 14" West a distance of 190.88 feet to the point of beginning. Containing 0.44 acres, more or less. 9417.1 1868639 OO RECEPT10........... ,�►� Also Being a right-of-way for an access road of variable width. The centerline being more part- icularly described as follows: Beginning at a pont, which point bears South 24 ° 13' 47" East a distance of 1916.90 feet from the west quarter corner of said Sec. 36, at which point said right-of-way is 36.67 feet on each side of said center- line: Thence North 21° 32' 13" West a distance of 63.64 feet to a point at which point said right-of-way has tapered to 15.00 feet, 7.50 feet on each side of the described centerline; Thence continuing North 21° 32' 13" West a distance of 889.21 feet to a. point; Thence on a curve to the right an arc distance of 197.74 feet to a point, said curve having a radius of 537.58 feet, a tangent of 100.00 feet, and a central angle of 21° 13' 28"; Thence North 00° 18' 45" West a distance of 353.60 feet to "Point A"; Thence on a curve to the left an arc distance of 110.24 feet to a point of termination on the east boundary of the pre- viously described substation site, which point bears North 00 31' 06" West a distance of 18.00 feet from the southeast corner of said substation site, said curve having a radius of 70.00 feet, a tangent of 70.29 feet and a central angle of 90° 14' 10". Also Beginning at said "Point A" thence North 00° 18' 45" West a distance of 240.14 feet to a point; Thence on a curve to the left an arc distance of 295.08 feet to a point of termination on the north boundary of the previously described substation site, which point bears North 89° 45' 37" East a distance of 18.00 feet from the northwest corner of said substation site, said curve having a radius of 93.5 feet and a central angle of 180 31' 20". Containing 0.7µ acres, more or less. -MEP i I ..X868637 Also Being a right-of-way of a guy stub pole and anchors 10.0 feet in. width, 5.0 feet on each side of the following described centerline: Beginning at a point on the north boundary line of the pre- viously described substation site which point bears North 89 ° 45' 37" East a distance of 69.0 feet from the Northwest corner of said substation site; Thence North 00 ° 31' 06" West a distance of 60.0 feet to the point of terminus. Containing 0.014 acres, more or less. Bearings based on Solar Observation. 94 7. . , 1868639 BOOK.........-. ci 5 1. 5. This grant is made with the understanding that the party of the 2. second part must construct the facility or facilities described above within 3. two years from date hereof, failing in which this grant shall be subject to 4. cancellation at the option of the party of the first part. If the party of 5. the first part agrees to extend such construction period, it is understood 6. by the parties hereto that the party of the first part may fix additional 7. consideration based on a reappraisal of said right-of-way at the time of 8. completion of construction of said facilities. 1. 6. All rights to any and all minerals, ores, and metals of any kind 2. and character, and all coal, asphaltum, oil, gas, geothermal resources, or 3. other substances in or under said land are hereby reserved to the State of 4. Colorado. In the event the party of the first part should at any time de - 5. sire to 6. subject 7. purpose 8. mining, occupy or use or permit the occupancy or use of the lands which are to the right-of-way herein granted or any portions thereof for any with which the aforesaid facilities would interfere, including the removing, or recovering of all minerals, ores, and metals of every 9. kind and character and all coal, asphaltum, geothermal steam and other sub - 10. stances, in or under said land, then the party of the first part may require 11.. the party of the second part to relocate, raise, lower, disconnect, or 12. otherwise adjust the facilities described above at any location or locations 13. where said facilities pass over and across State lands after first, in each 14. case, receiving not less than 90 days' prior written notice from the first. 15. party. In such event the party of the second part shall be furnished a 16. similar right-of-way over and across State lands, where available and suit - 17. able, free of charge, as a satisfactory right-of-way to relocate, raise, 18. lower, disconnect or otherwise adjust said facilities. In any event. not 19. more than one-half of the expense of said relocation, movement, or rebuild - 20. ing shall be paid by the party of the second part. 1. 7. This grant of right-of-way is made subject to any and all ease- 2. ments and rights -of -way heretofore legally granted and now in full force and 3. effect, if any there be. 947 ' 1868'39) BOOK RECEPTION 1..1i 1. 8, The party of the first part reserves the right to cultivate, use 2. and occupy said premises for any purpose consistent with the right and 3. privilege herein granted and which will not interfere with or endanger any 4. of the facilities of the party of the second part, or use thereof, Such 5. reservation shall in no event include the right to construct any buildings 6. or structures, to impound any water, or to plant trees, or shrubs upon the 7. right-of-way herein granted. 1. 9. The party of the first part shall have the right at any and all 2. times during the continuance of this right-of-way to sell or otherwise dis- 3. pose of said land and to use the same for all purposes, except as necessar.- 4. ily limited by the facility or facilities described above, 1. 10. This right-of-way is made for the sole and only purpose as here - 2. in set forth and no other and it shall not be deemed to give the party of 3. the second part exclusive possession of any part of the land above described; 4. and in the event that the party of the second part, or its successors or as - 5. signs shall at any time use or attempt to use the same for any other purpose 6. whatsoever, then and in that case this right-of-way shall become void and of 7. no effect, and any and all such rights and privileges herein granted shall 8. revert to the party of the first part or its successors in interest, 1. 11. The party of the second part shall have the right to trim trees 2. and shrubbery upon this right-of-way only if such trees or shrubbery should 3. materially interfere with or endanger the proper operation and maintenance 4. of said facilities. 1. 12. This right-of-way does not grant permission, express or implied, 2. to the party of the second part, for water exploration, drilling, or es - 3. tablishing water wells, without written authorization of the party of the 4. first part. If the party of the second part shall establish any water right 5. on State land, for any use on or off State land, such right shall be, and 6. remain, the property of the party of the first part. 1. 13. The party of the second part shall not sublet, in whole or in 2. part, the right-of-way herein granted, and shall not assign this agreement 3. without the written consent of the first party, and it is agreed that any 4. transfer or assignment, or attempted transfer or assignment of this agreement, - 5 - 94' ' 1868639 BOOK }ZECFPT[ON ,.,:....... �. 5. or any of the rights hereby granted, without such consent in writing, shall 6. be absolutely void, and, at the option of the first party, shall terminate 7. this agreement. 1. 14. The party of the second part shall not fence or otherwise ob- 2. struct free and open access to and travel upon, over and across said land, 3. without written authorization of the party of the first part. 1. 15. The party of the second part shall have such rights of ingress 2. and egress as may be necessary for the construction, reconstruction, opera - 3, tion, maintenance and removal of said facilities, but shall not leave open, 4. or permit to be left open, any fences, bars or gates. All such fences, bars 5. or gates which may be damaged or disturbed in any way shall be fully re - 6. stored by the second party. 1. 16. In the event that the facility or facilities for which this 2. right-of-way is granted are to be enlarged, replaced, relocated, or added 3. to in the future, the party of the second part shall advise the party of 4. the first part of such change and furnish surveys, plats and description of 5. the change to the party of the first part. An additional consideration, com- 6. mensurate with the damage to the value of the State land, may be required, 7. as determined by the first party. 1. 17. The right-of-way herein granted shall continue for as long as 2. the facilities described above are in place and maintained by the second 3. party, provided that should said facilities be abandoned or discontinued for 4. a period of twelve (12) consecutive months, this right-of-way and all rights 5. of the second party hereunder shall automatically and without notice terminate 6. at the end of such twelve (12) month period. 1. 18. The party of the second part may remove said facilities when - 2. ever it may desire and forthwith, upon such removal, the right-of-way herein 3. granted and all rights of the second party under this right-of-way shall 4. terminate, excepting that temporary removal of said facility during recon- 5. struction shall not terminate this right-of-way. 1. 19. In case this right-of-way is terminated for any cause whatsoever, 2. the party of the second part shall restore the lands occupied by said right - 3. of -way as nearly as possible to their condition prior to the construction 6 947 BOOK RECEPTION Cfr ,1868639 4. of the facility or facilities, if requested to do so in writing by the party 5. of the first part, 1. 20. The party of the second part agrees to assume all liability 2. arising from the exercise of the right -of --way herein granted; including but 3. not limited to, the risk of all injuries, including death resulting therer 4. from, to persons, and damage to and destruction of property, including loss 5. of use thereof, resulting directly or indirectly, wholly or in part, from the 6. prosecution or omission of any work or obligation undertakenor required by 7. this Agreement, and to indemnify and save harmless the first party from and 8. against any and all liability arising therefrom. 1. 21, The party of the second part will pay to the party of the first 2. part the full amount necessary to compensate the first party for damages to 3. its property, rights, franchises or privileges, including legal liabiaties 4. and damages to crops of lessees, resulting from acts or omissions of the 5. second party, its e'ents or employees, or from the exercise of the right -of - 6. way herein granted an the use of the lands of the first party. 1. 22. Any notice which may be given by the party of the first part to 2. the party of the second part may be mailed registered mail to: Public 3. Service Company of Colorado, F. 0. Box 840, Denver, CO 80201, 4. or such other address as second party shall.furnish to the first party in 5. writing and in advance of giving such notice, and the second party agrees 6. to advise the first party of any change in said address at any time in the 7. period this right-of-way is in effect. 1. 23. IN WITNESS WHEREOF, The party of the first part has caused 2. these presents to be executed in its name and in its behalf by the State 3. Board of Land Commissioners and has caused the seal of the State Board of 4. Land Commissioners to be hereunto affixed; and the party of the second part 5. has hereunto caused these presents to be signed by its Vice- - Pret-N,cier,'' 6. and Oec_re_ ct-rd . - 7 - A=180°31'20" R.= 93.66 L.= 295.08' W 1/4 COR. SEC. 36 POINT OF BEGINNING S.00°33'46" W. 75.0 11 18 \ 262 -.4"; \ POINT OF ; o `BEGINNING NO ` } �N ° Cn w l 4_ \ t°- 4, \ Is \ 1* \ 1 S. 89° 46\14" 190.88`\ \ PARCEL B N. 89 ° 45'37 "E. 69.00' m rn 0&S. 89°46' I 5"W. 136.00' N. 89° 46' l5"E. \ 326.93 \ N. 00° 31'07'E.\ 42.50' CERTIFICATE OF SURVEY \ N.00°31'06"E. 32.50' I HEREBY CERTIFY THAT THIS SURVEY WAS MADE UNDER MY SUPERVISION AND THAT THE PLAT HEREOF ACCURATELY REPRESENTS SAID SURVEY AND THAT THE SAME ARE CORRECT TO THE BEST OF MY KNOWLEDGE AND BELIEF. DATE REGISTERED LAND SU NUMBER 2275 \ \ \ COORS COAL MINE SUBSTATION STATE LAND SECTION 36 T. 3 N. R. 64 W. PUBLIC SERVICE CO. OF COLORADO DENVER , COLORADO ENGINEERING DIVISION ELECTRIC ENGINEERING LAND DEPARTMENT 9 / 9 /80 0 50' IOU' DWN. BY: K.A.J. 200' APPR. BY:j L I 100' \ 300' 400' 500' 600' 0 CD O DOC. 94477 A= 90°14'10" R.= 70.00 L = 110.24' T.= 70.29' SW V4 SEC. 36 COORS COAL MINE SOUTH BOUNDARY LINE A= 21°13'28" T.= 100.00' R.= 537.58' L.= 197.74' PARCEL C \ \ 586.11' I N. 21°32' 131'W. 63.64 36.67' E 1/4 COR. 7"-- SEC. 36 PARCEL A PARCEL B PARCEL C PARCEL D CONTAINS 0.58 ACRES ± CONTAINS 0.44 ACRES CONTAINS 0.74 ACRES CONTA INS 0.014 ACRES ± CONTAINS TOTAL 1.774 ACRES t CppRs RppO ENNIS SUBSTATION )(eel nerc ve RESPONSIBLE BY NATURE", October 3, 2018 Mr. Chris Gathman Weld County Department of Planning Services 1555 N. 17th Avenue Greeley, CO 80631 Mr. Gathman, RE: Traffic Impact Study 1800 Larimer Street, Suite 400 Denver, CO 80202 Public Service Company of Colorado (PSCo) respectfully requests Weld County Public Works to waive a Traffic Impact Study for this project. The project will generate approximately one trip per month. The vehicle used for this trip will be a mid -size or full-size pickup truck with one or two maintenance staff members. Please see below for responses to the traffic impact questions. Traffic Narrative: 1. Describe how many roundtrips/day are expected for each vehicle type: Passenger Cars/Pickups, Tandem Trucks, Semi-Truck/Trailer/RV (Roundtrip = 1 trip in and 1 trip out of site) The project will generate approximately one roundtrip per month. One or two maintenance workers will visit the substation to check for weeds, weather -related damage, vandalism, equipment performance and perform other routine inspection tasks. The workers will use a mid -size or full-size pickup truck. The number of roundtrips is not expected to increase from the current number. 2. Describe the expected travel routes or haul routes for site traffic. The travel route will eventually be along Weld County Road 59. WCR 59 is the only road that leads to the project site. The maintenance workers will get to WCR 59 using the roads that are closest to their previous maintenance visit that day. Any hauling of materials or equipment during construction will likely use WCR 59 for the same reason. Routes will be chosen based on the condition of the roads and the type of materials or equipment being transported. All appropriate county and state permits will be obtained. The travel routes are expected to be the same as the current routes. Ennis Substation October, 2018 STORMWATER REPORT Xcel Energy Ennis Substation Expansion Project Weld County, Colorado PROJECT NUMBER: 154142 PROJECT CONTACT: Dale Murphy, PE, PMP EMAIL: dalenurphy@powereng.com PHONE: (303)716-8962 ertAPOWER ENGINEERS POWER ENGINEERS, INC. This page intentionally left blank. POWER ENGINEERS, INC. PREPARED FOR: Xcel Energy 1800 Larimer Street, Suite 600 Denver, CO 80202 Heather Brickey (303) 571-7044 heather.c.brickeyt 7a xcelenergy.com PREPARED BY: POWER Engineers, Inc. 3900 South Wadsworth Boulevard Denver, CO 80235 Dale Murphy, PE, PMP (303) 716-8962 dale.murphy@?a Powereng.Com CIN () (2018-06-14) ST POWER ENGINEERS, INC. This page intentionally left blank. POWER ENGINEERS, INC. TABLE OF CONTENTS 1.0 CERTIFICATION STATEMENT 1 2.0 GENERAL LOCATION AND DESCRIPTION 1 2.1 LOCATION 1 2.2 DESCRIPTION OF PROPERTY 1 2.3 DESCRIPTION OF WORK 1 3.0 DRAINAGE BASINS AND SUB -BASINS 2 3.1 MAJOR BASIN DESCRIPTION 2 3.2 SUB -BASIN DESCRIPTION 2 4.0 DRAINAGE FACILITY DESIGN 2 4.1 METHODOLOGIES AND DESIGN PARAMETERS 2 4.1.1 Design Storms and Precipitation 3 4.1.2 Site Imperviousness 3 4.1.3 Soils 3 4.2 OFF -SITE ANALYSIS 3 5.0 CONCLUSIONS 4 5.1 HISTORICAL FLOW PATTERNS AND RUNOFF AMOUN"I'S 4 5.2 IMPACT MITIGATION 4 5.2.1 Extended Detention Basin and Flood Control 5 6.0 MAINTENANCE PLAN 5 6.1 FACILITIES TO BE MAINTAINED 5 TABLES: TABLE 1 DRAINAGE AREA CHARACTERISTICS 2 TABLE 2 RAINFALL DATA - 1 -HOUR PRECIPITATION EVENT 3 TABLE 3 IMPERVIOUSNESS SUMMARY 3 TABLE 4 FLOW SUMMARY 4 TABLE 5 MITIGATED FLOWS 5 TABLE 6 INSPECTION AND MAINTENANCE CHECKLIST 6 APPENDICES: APPENDIX A UNITED STATES DEPARTMENT OF AGRICULTURE WEB SOIL SURVEY REPORT APPENDIX B DRAINAGE AREA MAPS APPENDIX C GRADING PLANS APPENDIX D CALCULATIONS PAGE i POWER ENGINEERS, INC. ACRONYMS AND ABBREVIATIONS AC Acre cfs Cubic Feet per Second CN Curve Number IN Inches Tc Time of Concentration USDCM Urban Storm Drainage Criteria Manual, Volumes 1, 2, and 3 PAGE ii POWER ENGINEERS, INC. 1.0 CERTIFICATION STATEMENT "I hereby certify that this report for the preliminary drainage design of the Ennis Substation Expansion Project was prepared by me (or under my direct supervision) in accordance with the provisions of the Weld County storm drainage criteria for the owners thereof." Name: Signature: D,te Date: io l 4S Ib 2.0 GENERAL LOCATION AND DESCRIPTION 2.1 Location Project Location: Weld County, CO Location Coordinates: N: 1310573.24,,E: 327698112 Site Acreage: Parcel: 7,68 acres. Limits of Disturbance: 4.42 fic;res 2.2 Description of Property The existing property consists of partially vegetated, sandy rolling hills with slopes ranging from 3.0 to 9.0 percent. Existing vegetation includes desert scrub and brush throughout the property. An electrical substation with gravel surfacing sits in the southeast corner of the site and is sloped to the north. The site drains primarily to two on -site low areas, and one off -site low area to the east. The off -site low area converges onto an existing un-named dirt road lying to the east of the station. 2.3 Description of Work Planned work at the site includes earthwork, excavation and embankment to construct a substation expansion to the west and north of the existing substation. The proposed expansion will be surfaced with gravel, and all other disturbed areas outside of the substation limits will be revegetated. A drainage conveyance swale west of the new pad and a new extended detention basin north of the substation pad are proposed to drain the site and control peak runoff rates. A drainage ditch running along the west side of the station pad conveys both off -site and on -site runoff to the extended detention basin. An outlet control structure will be installed in the basin which will convey controlled flows to the outfall at Analysis Point "B." The basin is designed to detain the 1 -hour, 100 -year storm to be less than 90 percent of pre - developed rates. Larger events will discharge over the emergency spillway. A second drainage swale is proposed to convey emergency overflow discharges to the outfall. PAGE 1 POWER ENGINEERS, INC. 3.0 DRAINAGE BASINS AND SUB -BASINS 3.1 Major Basin Description The pre -construction site condition can be delineated into three drainage areas, each conveying site runoff to analysis points that are downstream from all planned disturbances. Each analysis point receives runoff from on -site and off -site. The analysis points have been located at depressions which appear to function as natural retention basin sites without discernable outfalls. Off -site runoff entering a depression located to the southwest of the station (Analysis Point A) will be re-routed through the planned basin to a different analysis point to mitigate the presence of standing water adjacent to the pad expansion. For this reason, the post -developed condition has been delineated into only two drainage areas with Analysis Points. Refer to the Appendix for the drainage area maps. 3.2 Sub -Basin Description TABLE 1 DRAINAGE AREA CHARACTERISTICS CATCHMENT SIZE (ACRES) Tc (MINIMUM) 100 -YEAR RUNOFF COEFFICIENT* Pre -Developed (Actual Existing Conditions) A 13.88 39.54 0.13 B 4.20 19.81 0.17 C 8.59 37.09 0.13 Post -Developed (Proposed Conditions) A N/A N/A N/A B 18.17 55.98 0.18 C 8.59 37.09 0.13 Notes: Tc e Time of Concentration. *Refer to the Appendix for 5- and 10 -year Runoff Coefficients. 4.0 DRAINAGE FACILITY DESIGN 4.1 Methodologies and Design Parameters All drainage facilities are designed based upon the Urban Drainage and Flood Control District's Urban Storm Drainage Criteria Manual, Volumes 1, 2, and 3 (USDCM). The Rational Method was used to size peak flow rates for 1 -hour design storms on the project. Runoff Coefficients were modified based on imperviousness percentages in the drainage areas and methods used in the USDCM. PAGE 2 POWER ENGINEERS, INC. 4.1.1 Design Storms and Precipitation TABLE 2 RAINFALL DATA 1 -HOUR PRECIPITATION EVENT STORM RAINFALL (INCHES) 5 -Year 1.14 10 -Year Storm 1.41 100 -Year Storm 2.67 4.1.2 Site Imperviousness Site imperviousness was developed using methodologies from the USDCM. Three different land use types were considered for calculating imperviousness: packed gravel, rooftops/foundations, and sandy soil lawns. Per the USDCM, packed gravel has an imperviousness of 40 percent; roofs/foundations have an imperviousness of 90 percent, and sandy soil lawns have an imperviousness of 2.0 percent. TABLE 3 IMPERVIOUSNESS SUMMARY CATCHMENT GRAVEL (PACKED) (AC) ROOFTOP / FOUNDATIONS (AC) LAWNS, SANDY SOIL (AC) IMPERVIOUSNESS (%) Pre -Developed A 0 0 13.88 2% B 0.58 0 3.62 17% C 0 0 8.59 2% Post -Developed A N/A N/A N/A N/A B 2.84 0.10 15,23 8.43% C 0 0 8.57 2% Note: AC = acres. 4.1.3 Soils The existing soils on the property are Type A soils. According to the United States Department of Agriculture web soil survey, the site consists of Valent Sand at 3.0 to 9.0 percent slopes. Valent Sand is described as Deep Sand and Rolling Sands and Hills. 4.2 Off -Site Analysis Off -site runoff from Catchment 'A' currently flows to a natural retention area to the south of the site. In the proposed condition this runoff is slated to be re -directed to the planned detention facility and released to Analysis Point `B'. Post -developed Catchment 'B' also includes the expanded impervious surfaces and other areas that will be disturbed with this project. PAGE 3 POWER ENGINEERS, INC. 5.0 CONCLUSIONS 5.1 Historical Flow Patterns and Runoff Amounts Using the precipitation data, soil data, off -site analysis and impervious cover computations; peak runoff rates were established for the Historical Condition (2.0 % impervious) and the Developed Condition. Flows were calculated using Rational Method hydrology with Runoff Coefficients modified using USDCM methods. The flows found in Table 4 represent peak rates without detention. It is noted that the 100 -year peak runoff rate to the project outfall (Analysis Point 'B') is less than 10 cubic feet per second (cfs) such that County detention requirements requiring control of 100 -year flow rates to 10 -year pre - developed rates do not apply. Mitigated flows can be found in Table 5. Flow to Analysis Point 'A' has been reduced to zero by rerouting this flow to Analysis Point `B'. Flows to Analysis Point `B' have been controlled to be less than 90 percent of the pre -developed flow rates in the 100 -year event. TABLE 4 FLOW SUMMARY CATCHMENT 5 -YEAR PEAK RATE (CFS) 10 -YEAR PEAK RATE (CFS) 100 -YEAR PEAK RATE (CFS) Pre -Developed Flows (Based on Actual Site Imperviousness) A 0.50 0.55 10.02 B 1.07 1.17 5.21 C 0.32 0.35 6.34 Historical Flows (Non -Urbanizing Area - 2% Imperviousness) A 0.21 0.27 6.43 B 0.10 0.13 2.99 C 0.14 0.17 4.15 Post -Developed Flows (Non -Mitigated Flows) A N/A N/A N/A B 1.09 1.62 9.16 C 0.14 0.17 4.15 5.2 Impact Mitigation Table 5 summarizes the peak flow rates discharging from the planned basin. Mitigated flows were determined using the AutoDesk Storm and Sanitary Analysis hydrologic and hydraulic software model. Post -developed peak flow rates were routed through the proposed basin, control structure and emergency spillway in order to develop the mitigated flow rates and water surface elevations. PAGE 4 POWER ENGINEERS, INC. TABLE 5 MITIGATED FLOWS CATCHMENT 5 -YEAR PEAK RATE (CFS) 10 -YEAR PEAK RATE (CFS) 100 -YEAR PEAK RATE (CFS) Mitigated Flows (From Stormwater Detention) A N/A NIA NiA B 0.52 0.74 1.80 C 0.14 0.17 4.15 5.2.1 Extended Detention Basin and Flood Control The Extended Detention Basin is designed to meet the requirements of the USDCM. The basin is designed based upon Full -Spectrum Detention, where the Water Quality Capture Volume and Excess Urban Runoff Volume are detained and released for adherence with drain time requirements and the at 100 -year 1 -hour storm is detained and released at rates that are lower than the Historic flow rate. The basin detains the Water Quality Capture Volume and the Excess Urban Runoff Volume and releases through a 1.0 -inch diameter orifice within the required 72 hours. The post -development 1 -hour 100 -year storm event is also detained, is released through a 6 -inch by 6 -inch orifice plate, and meets the USDCM requirement of 90 percent of the pre -development 100 -year storm peak flow rate. The basin includes a forebay at the headwater of the basin, and a micropool near the outlet control structure on the eastern side of the basin. The emergency spillway is designed to release the 100 -year emergency peak flow with more than 1.0 feet of freeboard to the berm elevation. 6.0 MAINTENANCE PLAN 6.1 Facilities to Be Maintained Below is a list of the permanent features that will require perpetual maintenance at the site. Table 6 outlines the inspection and maintenance requirements. Items to be inspected and maintained at regular intervals: • Extended Detention Basin, including forebay, micropool, emergency spillway, and outlet control structure • Drainage swale • Landscaped/grassed areas PAGE 5 POWER ENGINEERS, INC. TABLE 6 INSPECTION AND MAINTENANCE CHECKLIST STORMWATER MANAGEMENT FACILITY MAINTENANCE AND INSPECTION CHECKLSIT FACILITY COMPONENT INSPECTION REQUIREMENT MAINTENANCE/THRESHOLD Extended Detention Basin Check monthly and after every rain event over 1.0 -inch in depth. • Check for signs of erosion, rilling, sloughing and/or loss in vegetative cover. Regrade/repair eroded areas and replace degraded, dead or dying vegetative cover. • Check forebay and micropool for excessive sediment deposition. Remove excess sediment and dispose of in an approved fashion. • Check outlet control structure for clogging or damage. Remove clogs and make necessary repairs. • Basin vegetation should be mowed weekly during the growing season and monthly during the remaining months. Drainage Swale Check monthly and after every rain event over 1.0 inch in depth. • Check for signs of erosion, rilling, sloughing and/or loss in vegetative cover. Regrade/repair eroded areas and replace degraded, dead or dying vegetative cover. • Check debris and sediment deposition. Remove sediment and debris to ensure the swale is free flowing. • Swale vegetation should be mowed weekly during the growing season and monthly during the remaining months. Grassed Areas As needed. • Check for signs of erosion, rilling, sloughing and/or loss in vegetative cover. Regrade/repair eroded areas and replace degraded, dead or dying vegetative cover. • Site vegetation should be mowed weekly during the growing and at least once during the remaining months. PAGE 6 POWER ENGINEERS, INC. APPENDIX A UNITED STATES DEPARTMENT OF AGRICULTURE WEB SOIL SURVEY REPORT USDA United States Department of Agriculture MRCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey. a joint effort of the United States Department of Agriculture and other Federal agencies. State agencies including the Agricultural Experiment Stations. and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part September 10. 2018 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your N RCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactusi? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 How Soil Surveys Are Made 5 Soil Map 8 Soil Map 9 Legend 10 Map Unit Legend 11 Map Unit Descriptions 11 Weld County, Colorado, Southern Part 13 70—Valent sand, 3 to 9 percent slopes 13 References 15 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 Custom Soil Resource Report identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 4QO 11" 1 N 40° 10' 50" N 104° 30' 37' W 104° 30' 37' W N A Custom Soil Resource Report Soil Map Map Scale: 1:1,700 if pnnted on A portrait (8.5" x 11") sheet. 0 25 50 100 Feet 0 50 100 200 300 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 541810 Meters 9 150 541930 0 O M ° 0 R 0 r-- 40° 11 1" N 40° 10' 50" N Custom Soil Resource Report MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons ••�-s Soil Map Unit Lines Soil Map Unit Points O Special Point Features tv x 0 • D 0 Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot 0 a a Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Shaw Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1 24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area. such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data Version 16, Oct 10, 2017 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 17, 2015 Sep 22. 2016 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background ii i idyei y displayed un these maps. fAS a result. some minor c hiftin of ma i init boundaries may be evident 9 P 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 70 Valent sand, 3 to 9 percent slopes 13.0 100.0% Totals for Area of Interest 13.0 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. 11 Custom Soil Resource Report An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha -Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12 Custom Soil Resource Report Weld County, Colorado, Southern Part 70—Valent sand, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 2tczf Elevation: 3,050 to 5,150 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 180 days Farmland classification: Not prime farmland Map Unit Composition Valent and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Valent Setting Landform: Hills, dunes Landform position (two-dimensional): Backslope, shoulder, footslope, summit Landform position (three-dimensional): Side slope, head slope, nose slope, crest Down -slope shape: Linear, convex Across -slope shape: Linear, convex Parent material: Noncalcareous eolian sands Typical profile A - 0 to 5 inches: sand AC - 5 to 12 inches: sand C1 - 12 to 30 inches: sand C2 - 30 to 80 inches: sand Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High to very high (6.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 1 percent Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Very low (about 2.4 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: Deep Sand (R067BY015CO), Rolling Sands (R072XY109KS) Hydric soil rating: No 13 Custom Soil Resource Report Minor Components Dailey Percent of map unit: 10 percent Landform: Interdunes Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Concave Ecological site: Deep Sand (R067BY015CO), Sands (North) (PE 16-20) (R072XA021 KS) Hydric soil rating: No Vona Percent of map unit: 5 percent Landform: Hills Landform position (two-dimensional): Footslope, backslope, shoulder Landform position (three-dimensional): Side slope, head slope, nose slope, base slope Down -slope shape: Linear Across -slope shape: Linear Ecological site: Sandy Plains (R067BY024CO), Sandy (North) Draft (April 2010) (PE 16-20) (R072XA022KS) Hydric soil rating: No Haxtun Percent of map unit: 5 percent Landform: Interdunes Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Base slope Down -slope shape: Linear Across -slope shape: Concave Ecological site: Sandy Plains (R067BY024CO), Sandy Plains (R072XY111 KS) Hydric soil rating: No References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www. nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres 142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres 142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres 142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/land use/rang epasture/?cid =s telprdb 1043084 15 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430 -VI. http://www.nrcs.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_ 054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.gov/wps/portal/nrcs/detailinational/soils/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf 16 POWER ENGINEERS, INC. APPENDIX B DRAINAGE AREA MAPS i / N / N / K f / N / / / / i / / ;' / / / N 4 \ f N N N N N cA l 't } N i N N / / / \ N 8 7G V CATCHMENT "A" AREA = 13.88 AC. RUNOFF COEFFICIENT = 0.13 Tc = 39.54 MIN. N PROPERTY BOUNDARY ,\- 1 CATCHMENT "B" AREA = 4.20 AC. RUNOFF COEFFICIENT = 0.17 1 1 Tc = 19.81 MIN. 1 i \' EA EXf tI?NG \ STATION V i L i \\ CATCHMENT "C" AREA = 8.59 AC. RUNOFF COEFFICIENT = 0.13 Tc = 37.09 MIN. / T-, 1 N I EXISTING DIRT ROAD ANALYSIS POINT B / f 2/ Tc N 0/ N N \ N HISTORICAL NON -URBANIZING FLOW RATES (CFS) CATCHMENT 5 -YEAR 10 -YEAR 100 -YEAR A 0.214 0.265 6.426 B 0.100 0.130 2.990 C 0.138 0.171 4.147 0 50 100 200 300 FEET 1"=100' THIS DRAWING WAS PREPARED BY POWER ENGINEERS, INC. FOR A SPECIFIC PROJECT, TAKING INTO CONSIDERATION THE SPECIFIC AND UNIQUE REQUIREMENTS OF THE PROJECT. REUSE OF THIS DRAWING OR ANY INFORMATION CONTAINED IN THIS DRAWING FOR ANY PURPOSE IS PROHIBITED UNLESS WRITTEN PERMISSION FROM BOTH POWER AND POWER'S CLIENT IS GRANTED. DSGN TJ G 09/28/18 XCEL ENERGY JOB NUMBER REV DRN PPG 09/28/18 CKD SMT 09/28/18 REV REV S 0NS DATE DRN DSGN CKD APPD REFERENCE DRAWINGS SCALE: 1" = 100' FOR 24x36 DWG ONLY AtPOWER ENGINEERS ENN S STAT 0 J 154142 IS OR C DRAINAGE EX BIT DRAW NG NUMBER DA -1 ' / J .7,__6 N • / 1 / 0 } DEVELOPED (NON -MITIGATED) FLOW RATES (CFS) ; 1 ��6� CATCHMENT 5 -YEAR 10 -YEAR 100 -YEAR J - A 4860 PROPERTY BOUNDARY 7 1, : B 1.090 1.620 9.161 1 \ 1,0_._,, _. C 0.138 0.171 4.147 '-- -_,, (/ , ., r DEVELOPED MITIGATED FLOW RATES (CFS) ..,.-8'3: __ EXISTING CATCHMENT 5 -YEAR 10 -YEAR 100 -YEAR I I { f �� }, DIRT ROAD A — — — ` , ;' . ANALYSIS B 0.520 0.740 1.800 POINT B C 0.138 4.147 .0171 :, is �- , J C EXtIJGb— STATION/ 0 00 1 ,fti \ _ \ \ A J �` \`. j ., / / �1 ,,�/ /1 � �� I / / N ,-01� I _ I L �.. 7 N / \ N Z A�_,6•/ \ V\ \ \ \ H S N \ �RUNOFF \ v8 0\ \ G.� \ 1 �-,r--1 I / J �� v<J ___ ,,, ______ __I \tNALYSi �� KCI.NT A - \ --- /- o- f-_)- 7 V CATCHMENT "B" AREA — 18.17 AC. RUNOFF COEFFICIENT = 0.18 Tc = 55.98 MIN. � f \ , , __ ANALYSIS 3 / 1 n POINT C \\ r� \ I CATCHMENT AREA = 8.59 I COEFFICIENT Tc = 37.09 MIN. "C" AC. = '-� ---___ %" \ \ \ \ __. 7 -c -,l T C \ TC I- c 0.13 T C ,7 \ — , ' 1 1 \ \ , 1 1 1 1 1 1 / / / 1. / / 0 50 100 200 300 FEET 1"=100' / / -� / THIS DRAWING WAS PREPARED BY POWER DSGN TJG 09/28/18 XCEL L ENERGY JOB NUMBER REV ENGINEERS, INC. FOR A SPECIFIC PROJECT, DRN PPG 09/28/18 TAKING INTO CONSIDERATION THE SPECIFIC 154142�REUSE AND UNIQUE REQUIREMENTS OF THE PROJECT. 09/28/18 POWERENN S STAT O J � (VP) OF THIS DRAWING OR ANY INFORMATIONCKDSMT CONTAINED IN THIS DRAWING FOR ANY PURPOSE SCAEE: 1 = 100' ENGINEERS DRAWING NUMBER IS PROHIBITED UNLESS WRITTEN PERMISSION DEVELOPED IDRAINAGE EXHIBIT DA -2 FROM BOTH POWER AND POWER'S CLIENT IS GRANTED. REV REVISIONS DATE DRN DSGN CKD APPD REFERENCE DRAWINGS FOR 24x36 DWG ONLY POWER ENGINEERS, INC. APPENDIX C GRADING PLANS N 1 PROPOSED PROPERTY CORNER N: 1310998.19 E: 3276709.87 ' / N_ \ V N. 4/ / / ��1-' -_ _.,/ //\ /I l' /' /' �\ // .r 7 / / / / / �N '� �� \ N i �� ,\ /' �/ / �� /� I y' `�1/S7.,89° 5/0f59.- -�'1 4��.21-7' '_♦ ; - ' 7/ \1 4 �� \v \PROPOSED PROPOSED-vs1 1 1 PROPERTY ), 11 �y /` v \ PROPERTY -CORNER- 7. �/ / \ \ \ N: 131096:96 ,/ -'1 LINE r \ x:3277181.09 r �> i 1 47r11 r- 1. v 1 1 `� 1 /` •1 1 I _�_/ 1 v , CO ! / -- / / ,4-1 l 1 HV / v7 \ V 1\ �\ �� ( 1 4 / 1 _ ' / V \.- .-. , �V A V A V / 7 / i \V A \ �_ _ -7' a 67 T_ /., Il . ' — N: 1310- 3.30 ▪ `v Av `-_,_.-/-----,▪ ,----_____ � �' / ��7` �. 1 E: 3x776945 7 — ` ,... _ — — 4 / / ' /, w 30' COUNTY RD ROW I� w�-- �-� - __ CD /'' BK. 296, PG 157 - w u J 1 5, 0 1 \ 1 h� ' N� �� Nv Q 1 / \ 25' PIPELINE \ 1v AV V / / A r - A t EASEMENT ! i I v ,, v v v/ �� 5 /! 0 I \. I REC. NO. \ 7 \-�- ' 1622696 / - J` \ v 7 (� PROPOSED) v ! - ' I. /� ---- �' i (�-rv--'1 PROPERTY CORNER v ��_ ' _ �\ �v N:1310830.85 vv 74 �- y v /} A -` 1/ /- N �V �7 / i 1 7.i 111'-7' �� - 174c3"--_______\ 1 `v ! / V v I N� 7 /. / ,� �� z� r / 1 / J / I .-' �_ /-•� r N / , it r-- l _ < / \ 1 \\ li / !/ 1 / i )1 J J f r ) 1 / / 1 / ) / / 7/ / / i 1 7 / / 1/ (/ I / /i // / / ! 1/ ,/ /r j 1 i 1� {—mot / ( \ Al / / I - / / / i I ( _ �\ / 1 )1 (\ ) r N: 1310601124 E: 327t3763.29 r' I\ C N I / l V r / �'��__� 1 �� / y 1 ) / I \ V I ____/ } 0▪ 3 H N ) 1 / M -% Tx -,x -% i--x _ix_r i7/^ \ / X �x [7-X -' -' -M -X -% �% -Y -X 1 1 11 11 I \\\ II I ( N:1310739.80 1 �v E:132768 3.76 } i ELEV. _ 4862.87 j 7 ,LK[L i 1 1i Z 11 ( 1 l ' �N 1 /I /I 11 1! COI J } �i 1 1 1 1 1 ' III 41 I (' SUBSTATION EXPANSION 11 IN IN N: 131045.97 E: 3277119-.53 _ 1 rn 1 v 1 I 1 �-� i ELEV. = 48_56_16'-_, \ ! A 1 1) I jV(13j0$2f J2 :�v v \ r 1 I \ \ 1 E:3277119.15 4'-�' \,1\ I I -\ 11_( BASELINE INTERSECTION' ELEV. = 4857.89_,' •N 7 `' N NII N 74310600.x'--� - \ E: 3276944 88 T �� ' �' h� E: 3277180)65 1 \ / / \ ' ▪ 7 1 ��' �' �� S / , 7 / /_ / 7 /7s / /r �, / r // / - - P-RtSPOSED '' PROPERTY C2NE /' / � �s ' �\ �/' _ N: 1,3-10738 9 , / / -E:32772 .58 /' / / / / 1/ 1 1 A. /' / /1 }' / i - -</� / I / I 3-- A .- I 1 j �' \ I / / �. / i 1 i ( ,/ /1 ,' 1 x 7 \ 1 I A I V 1 ' , // I �. IH- f ▪ \ \ \ rV I4. ,/ A N 1_ ` / i �! �d 11 NI :71310600.1` It1��JJ / \\ // / �� / E: 3v?�77176.257 [[0�� Yv // v} / / 1 NJ) 1/ ! / \ /� / \ v _, N / \ f 7 81 1 ' N.7.vv N v /�(�_ /' 21'-9" r j T / �� v l ST CIVEST T/ %t , \ o .7_7/ i x ) } / 86� !'BAS E L��l E� ,_I \1 \ ,_\ N 7\y . v_ V 7 1 1 a a 1 ▪ 1- ▪ \ Iv -▪ �_F~�.��-KK-. . /7 I 11 I v1 hy { ��/ I 1 / -\4 \q s x M 1 / } 7 7 I 4, I / 1 N: 1310739.06\ E: 3277119.59 _ 1+ v'ELEV. = 4855.99' \ �- 7/ U PROPOSED ENNIS I \r 1 4 / �' 7 N / 1 \ / / / 1 { I A ( I N 1 ) I 1 ; / / 6N- / 1 1 v / v 1 x- � 1\ I / \ 11 N: 1 3 1 057-3 24 EXISTING -FENCE / / d}_ 1 EMOVE 580 LF j E: 3276983.12 CORNER . c I {\I / i / IST�INPG FENCE I \ 1 N: 1310575.22v - �, �---' 7! / = I N't, , 7 I// ( \ EXISTING E: 3277118.88 [ 1 I// I ▪ I 1 ENNIS r/ _ �// / �� /� \ v 1 `�� SUBSTATION fi 1 / / - I / / \� / i f ( 7 r 1 ''( \I 7 t �v ❑ ❑ /1 1 ❑ ❑ ,V ) ) / / ;y, , / , r — - -, ( I .- u/ / / cod ��_�``v (� 7 / 1 / 1 �1 / I tQ 1 �� ! 1 l 1 T / I/ / H/ / / / / d 7 // / /' ----- �I / \ \ \7 / 1 // 1 �(�/ 1// Y �/ �� v fi v 1 I l / /1 I /' / / / / // / / ,/ D� .' A\ 7v A 1 \ I �/ ' ,/ /' / / / I�� A A A r / // ,/ 1 // / /' ' �� / ( ---ti \\ \ \\ �\ \ 1 1 1 / ,, / / 1 / / v \ v N 7 �'� \ N • N �/ J / 1// i j Vbv\ I �'/ v / \'-- „! / / / / ▪ .' / / ( / I /� 1 / / 7 , - Y // , �' ' / • / r —L/ / /' / r 1 a-f,-a-.�-w�, __, i ! I' 1 / A / / 1 / / I / 1 " ./ / Crx \I / i / ! / 1 / r I f \ ( 1 / 1 ! / ( 7 1 / \ 1 1 I / HIV A I 1 \ PROPOSED( \ PROPERTY s \ \\ CORNER � N: 131028.14 \ E: 3276708 Q1 L 1 1 I 1 I / 1! I� , 1--_____ a5 -'_,,,,,t.„------.1'/-▪ ///'_,-/' --- / /',58:9-`'-'5O-1"59_81" E 471 I':21 P, 1 /' , III /1 / �g�A �,�-' �-- � , / / / _- -- ( i 1 � � / /' I /I ,I / } / _ ' ! ! /,PROPOSED 1 r / ,-4a59�` 1 PROPERTY CORNER / / : / i 1r ( N: 110286.90 r t 8862-/� �� / - - 1 1 it ) r E: 3277179.23 /I 48S8�� L-- 7�Ly I 7-' _'5-' / .I-- /7 / / / ,l / ,r /r i l r ,l / / ,� ,/ E/ N ? J r 1 II 7 I I ./ �/ / ,' EXISITING CONDITIONS PLAN SCALE: 1" = 40' CORNER �v �1 EXISTING FENCE m\ / � // REMOVE 650 LF ❑ EXISTING STATION FENCE ❑ I \ ❑ ❑ ❑ ❑ 11 ! 1 _ r� 11 ! / ) / I 11 1 N s 1 / I1 N: 1310419.06 E 1 ) // / I) O E: 3277119.33 ri rrr 'r`/ ,' -, 59 \ \ r ❑ \ / A 1 N7 / / / 1 111 3-98° 7757. - - ` `'11119r P1IOPOSED`�-. 1 \-PROPERTYCORNER ' N X31058 57 / N. I N1 / ▪ ,�v/'PROPOSED --- '-RROP-ERTY CORNER-_ ' N: 1310577.94 - G86 3277179.99 ! 4862 / CD 11 i 0 / ' /!11 4862 _. - ( I 1 "'\ /- 1 / A - 1/ I �` / 1 / N .,'� N. �—,r d ' / I `J / N. 1310395.06 i r �� `�NE: 3277119.50 — �� r �� / 1 7 1} 1 1 ELEV. = 4861.91' I I 1 / s9 N 1 1 a '` _N, 0 I �/ sa awl a ��a �' _ �. - Qr y 1- H- v I / / Li,�%� % ` o / l' t v W I \ Ir 1 i _ __—E—XTS—TING_FENCE --- / ' \ i I ! CORNER / r / 1 a/ y I i 1 r / / 1 1 r r1�131O388129 N: 1310387,80 7/ r / ( A / H'EXISTING7FENCE E: 3277119.' / ) r I/ l 1 1 r Z ! 1v E: 3276832.84_ -- j // / ,, / / // / /y CORNER '- i r g� 7 Z s�/i rf I ELEV. = 4856.53 ' I .` / N: 13_1_0386:4D- ___ 1 1 E: 3276983.37 -x77 r i / X856 �- �� / / r/ // // // // /' ��1 I /' / / , N: 1,10357.59 / / - - // i Z 4aC ' v ▪ � �/ / / / E `32 9s�4.2 v /!' ti - ,--- (_/ 7 / / / / / / A / 1 ) l / r / / ! L .1 1 I 486 1 _4858 � I �-' � / / / � � ▪ \ f / r , / / � _J r 1 / (� REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS4 REVISION DESCRIPTION LEGEND xx xx xx EXISTING STATION FENCE x x x EXISTING BARBED WIRE FENCE 4855 EXISTING MAJOR CONTOUR 4855- EXISTING MINOR CONTOUR EXISTING ROAD EDGE OH OH EXISTING OVERHEAD ELECTRIC PROPOSED PROPERTY LINE / / X PROPOSED FENCELINE STATION BASELINES ISSUED FOR PERMIT 1 GENERAL NOTES 7 / / / / / J 1. TOPOGRAPHIC INFORMATION PROVIDED BY MERRICK SURVEYORS DATED 09/04/2018 2. EXISTING CONTOURS ARE AT ONE FOOT INTERVALS. 3. GEOTECHNICAL INFORMATION IS FROM THE GEOTECHNICAL ENGINEERING REPORT BY HAYES CONSULTING DATED: SEPTEMBER 24, 2018 0 40' 80' 120' 160' 200' SCALE IN FEET 1"=40' ISSUED BY ENGINEERING DEPT FOR: REVIEW THIS MAP/DOCUMENT IS A TOOL TO ASSIST EMPLOYEES IN THE PERFORMANCE OF THEIR JOBS YOUR PERSONAL SAFETY IS PROVIDED FOR BY USING SAFETY PRACTICES, PROCEDURES AND EQUIPMENT AS DESCRIBED IN THE SAFETY TRAINING PROGRAMS, MANUALS AND SPARS. INTERNAL INFORMATION: DO NOT COPY OR DISTRIBUTE WITHOUT EXPRESS WRITTEN CONSENT FROM XCEL ENERGY ENNIS SUBSTATION ENNI TOPOGRAPHIC LAYOUT PLAN Xcel Energy® 0017-000.000S0X SCALE 1"=40' REV 1 CD 0 z J 0 CI) VJ^ z O I- 0 z O U CD z U) w O 10/15/2018 1:26:10 PM N F -- I 1 ELE ( K Cl..(DITCH-END N31310797.36 E. 27 828.65 ELE . = 853.00' CL IDIT H 13 0785.9 :32 x816.4 53.08 r L blTl N: 310382'82 E: 3276 11.63 ELEV. = 4855.80! I CL DITCH START N: 11036854 E: 3276820. ELEV. = 4855.89' o I K K i 1 I KI K 4858 - /iii 1 N: \E. 327 N: 1310 9.81 S E: 3276833.67 EI�EV. =856.6J f9' X f / 1 x N1 1 / A 11V -EST 4859 PROPOSED PROPERTY LINE I SECTION\ 1 LINE 1 „4861 1 116'-9" 485 4851 x \x x\ X X K `r / / / --------- _\ ` `� - / y 1 / / i �� -\______ - /// r - .7 v�\___ \ __- ' ,/ ( ( lob � i \\_ \ 1 7 K ) f --i0 1`O 1 \ ) ) v \\ vim, - -/ --- SEDIMENT FOEBA / -------- \ \ SEE DETAIL HEE,T 4 \ ti� / S►N OU_IET ANT OL STRUCTURE_ nRAP G PE \ \ f- \\ SECTION I I '� n� f SHth 13� 179`8" \ \ ` \ \ X 4860- N: 1310387,\81 E: 3276832 LEV. = 4860.5t ---PROP-OSED DE-TE 1�TION BASIN N: 1310739.51 E: 3276945. X : 131060076 J : 32744.88- `-le,"` i / �� - / ---.__4857 --- /ITCDkSTURBCE C5S) �/ /./ - -' C 1 � 1340784.8f-3---- 3277 5.04 ELEV. = 4857. 5'`r BASIN MICROPOOL BOTTOM ELEV. =49:50' X� C X / PROPOSED ENNIS N: E:3 SELEV. = 10738.98 7119.75 857.11' SUBSTATION EXPANSION N: 1310645.97 GUY ANCHORS 1O NOT DISTURB Al3AELINF� oH xx � � 0 x,3277119.53 EL EV. =-4858,-09-'__ N: 1310621,92 E: 3277119.1 ELEV. = 485.8 \ 1310600.29 E: 3277119.03 U ❑ ❑ \ 7 K off N: 1310575.22 E: 3277118.88 ELEV. = 4857.83' 0 p EXISTING ENNIS IBSTATION K ° 1 T N: 1310419.06 E: 3277119.33 ELEV. = 4861.21' 0 ti XX XX XX XX XX XX XX N: 1310389 3983.37 LEV. = 4.91' A� 1382.41 1310386.83 32-7698372-0 98 3 / „.EI EV. X620` 7 N:1310395.06 E: 327 19.50 ---„,7� 7R: 3/0' ELEV. = 4861.91' \1I\0 / N: 31 36 .59 = ( E:/327171 9 f EL V. = 48 8.79' ///// I 7 R: 35' _ //\ (///)/r- /1/ )/! Il/(j1/1//// / / / . / . / / / / / EXISITING CONDITIONS PLAN SCALE: 1" = 40' 1 N / 1 t I 7 EMERGENCY / SPIL WAY iwV ELEVI 485.00' 41310633_91 E: 3277163.63 ELEV. f= 4855.96-- R: 180' 7 N: 134/0626.97 E: 3277193.5 ELE\ = 4854.66' N: 13106k .28 E: 7720 .24 LE . = 4856 ./ :25' 1� : 30' N: 1310447.59 1C77 i 2 2 l 1 1‘" HDPE STORM'''. / / /@ 0.75°10 SLOPE P OPO, D UTILITY/ �/ / ACCE SS EA MENxf ��h 7 / / / /48" CU�VERJUTL) ET &�$ RIPRAP 13101.23/ / <',,- 3777231.x34 , �� = 4851.00' / IN ELE / dr \N: 131-0638.74- E: 3277243.71 - /5 4860 - GENERAL NOTES 1. LOCATION OF BENCHMARKS FOR GRADE ELEVATION IS TO BE SET PRIOR TO CONSTRUCTION. 2. CONTOURS AT ONE FOOT INTERVALS 3. FINISHED GRADE ELEVATIONS ARE INDICATED. SUBTRACT YARD ROCK DEPTH FOR SUBGRADE IN SUBSTATION GROUND AREA 4. SITE GRADING SHALL BE PERFORMED IN ACCRODANCE WITH XCEL ENERGY SPEC. 220 "SPECIFICATION FOR SITE GRADING"REV. 3, DATED 07/15/94 AND THE PROJECT GEOTECHNICAL ENGINEERING REPORT, HAYES CONSULTING COMPANY, DATED 09/24/18. 5. VEGETATION, ORGANIC TOPSOIL, AND EXISTING MAN-MADE FILL SHALL BE REMOVED FROM THE FILL AREA. AREAS TO BE FILLED SHALL BE SCARIFIED A MINIMUM OF 12 INCHES, MOISTENED IF NECESSARY, AND COMPACTED IN A MANNER SPECIFIED BELOW: 6. SUBGRADE SHALL BE COMPACTED TO 95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY. 7. SUBGRADE SHALL BE PROOF -ROLLED PRIOR TO PLACEMENT OF STRUCTURAL FILL MATERIAL. SOILS WHICH RUT OR DEFLECT 1 INCH OR MORE SHALL BE CORRECTED BY EITHER SUBCUTTING OR REPLACEMENT, OR BY SCARIFYING, DRYING AND RECOMPACTING. 8. STRUCTURAL FILL MATERIALS SHALL BE PLACED IN LIFTS NO GREATER THAN 8 INCHES. 9. STRUCTURAL FILL MATERIALS SHALL BE COMPACTED TO 95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY WITH MOISTURE CONTENT FROM 0 3%. 10. IN AREAS WHERE FILL DEPTHS EXCEED 5 FEET, THE MATERIAL SHALL BE COMPACTED TO 100% OF STANDARD PROCTOR DENSITY. 11. SUBGRADE MATERIALS UNDER ROADWAYS SHALL BE SCARIFIED A MINIMUM OF 12 INCES AND COMPACTED TO A MINIMUM 95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY. 12. EXCESS SOIL FROM GRADING ACTIVITIES TO BE PROPERLY DISPOSED OF OFF -SITE OR UTILIZED IN LANDSCAPING ACTIVITIES AND IN NO CASE SHALL IT AFFECT OVERALL SITE DRAINAGE. 13. BASE MATERIAL SHALL BE PLACED IN LOOSE LAYERS NO THICKER THAN 6 INCHES AND COMPACTED TO 95% OF STANDARD PROCTOR MAXIMUM DRY DENSITY. 14. NO MATERIALS SHALL BE PLACED ON FROZEN SUBGRADE. 15. EROSION CONTROL SHALL BE PERFORMED IN ACCORDANCE WITH XCEL ENERGY SPEC. 221 "SPECIFICATION FOR EROSION CONTROL PLAN", REV. 0, DATED 08/18/95. SILT FENCE SHALL NOT BE REMOVED UNTIL THE COUNTY HAS DETERMINED THAT THE SITE HAS BEEN PERMANENTLY STABILIZED AND SHALL BE REMOVED WITHIN 30 DAYS THEREAFTER. CONSTRUCTION SEQUENCE 1. INSTALL INITIAL EROSION AND SEDIMENT CONTROLS PER THE SWMP 2. CLEAR AND GRUB THE SITE TO THE LIMITS OF DISTURBANCE SHOWN ON THE PLAN. 3. COMPLETE EARTHWORK ACTIVITIES, INCLUDING EXCAVATION AND EMBANKMENT OF STATION PAD AND EXTENDED DETENTION BASIN. 4. INSTALL DRAINAGE STRUCTURES, STORM SEWER PIPING AND RIPRAP OUTLET PROTECTION. 5. APPLY TOPSOIL, SEEDING AND MULCH TO THE LOCATIONS SHOWN ON THE PLANS. 6. APPLY FINISHED SUBSTATION STONE TO THE LOCATIONS SHOWN ON THE PLANS. MAINTENANCE 1. MAINTENANCE SHOULD BE COMPLETED WITHIN 72 HOURS OF DISCOVERY, OR AS SOON AS FIELD CONDITIONS ALLOW ACCESS. 2. THE CONSTRUCTION ENTRANCE SHALL BE MAINTAINED BY SCRAPING OR DRESSING WITH ADDITIONAL AGGREGATE. 3. REMOVE ANY DEBRIS THAT MAY BE TRACKED OFF -SITE DAILY. PRE -EXCAVATION PROCEDURE 1. CAUTION: THERE MAY BE UNDERGROUND UTILITIES/OBSTRUCTIONS IN THIS AREA. THE UNDERGROUND UTILITIES SHOWN ON THE PROVIDED ELECTRICAL REFERENCE DRAWINGS SHALL NOT BE ASSUMED COMPLETE OR ACCURATE. CONSTRUCTION SHALL LOCATE AND CLEARLY MARK THE LOCATION OF UTILITIES PRIOR TO ANY CONSTRUCTION ACTIVITY. 811 OR 1-800-922-1987 SHALL BE CALLED FOR EVERY EXCAVATION PROJECT AT LEAST 2 BUSINESS DAYS PRIOR TO EXCAVATION WORK. 2. FOR UNDERGROUND UTILITY LOCATES INSIDE THE SUBSTATION FENCE, REQUEST LOCATES FROM XCEL ENERGY FIELD OPERATIONS AT LEAST TEN (10) BUSINESS DAYS PRIOR TO EXCAVATION WORK. 3. REFER TO CONSTRUCTION SPECIFICATION (NSP-STD-CIVIL AND PHYDICAL SUBSTATION 4s0- CONSTRUCTION SPECIFICATIONS) FOR ADDITIONAL LOCATE INFORMATION. 4862 4 60- 4860- 4858_ N 4. DRAWINGS SHALL NOT BE RELIED UPON AS THE SOLE SOURCE OF INFORMATION REGARDING UNDERGROUND UTILITIES. LEGEND XX OH XX XX OH 4855 _ 4855 4855 _ EXISTING STATION FENCE EXISTING BARBED WIRE FENCE EXISTING OVERHEAD ELECTRIC EXISTING ROAD EDGE EXISTING MAJOR CONTOUR EXISTING MINOR CONTOUR PROPOSED MAJOR CONTOUR PROPOSED MINOR CONTOUR LIMITS OF DISTURBANCE PROPOSED PROPERTY LINE PROPOSED FENCELINE STATION BASELINES 0 40' ISSUED FOR PERMIT 80' 120' 160' 200' SCALE IN FEET 1" = 40' ISSUED BY ENGINEERING DEPT FOR: REVIEW THIS MAP/DOCUMENT IS A TOOL TO ASSIST EMPLOYEES IN THE PERFORMANCE OF THEIR JOBS_YOUR PERSONAL SAFETY IS PROVIDED FOR BY USING SAFETY PRACTICES, PROCEDURES AND EQUIPMENT AS DESCRIBED IN THE SAFETY TRAINING PROGRAMS, MANUALS AND SPARS. INTERNAL INFORMATION: DO NOT COPY OR DISTRIBUTE WITHOUT EXPRESS WRITTEN CONSENT FROM XCEL ENERGY ENNIS SUBSTATION CONTOUR AND GRADING LAYOUT PLAN ENNI O >- CD O O O 0 REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION Xcel Energy* SCALE REV 0+00 4870 4865 4860 4855 4850 SECTION A -A STATION FENCE (TYP.) PROP. GRADE DRAINAGE DITCH 1+00 4" CRUSHED ROCK 12" BASE MATERIAL 2+00 N -S STATION BASELINE COMPACTED STRUCTURAL FILL 3+00 EX. GROUND 6" ORGANIC STRIPPING 3+72 0+00 4870 4865 4860 4855 4850 4845 4870 4865 4860 4855 4850 4845 SECTION B -B EX. GROUND 6" ORGANIC STRIPPING 1+00 HORIZONTAL SCALE: 1" = 20' VERTICAL SCALE: 1" = 5' 2+00 GRADE BREAK STA. 2+45.00 4870 0+00 4870 4865 4865 4860 4860 4855 4855 4850 4850 3+00 4+00 E -W STATION BASELINE STATION FENCE (TYP.) COMPACTED STRUCTURAL FILL 0+85 EX. GROUND 6" ORGANIC STRIPPING 1� j 1 3 1 3 CUT PROP. GRADE 20'-6" 4" CRUSHED ROCK CUT 12" BASE MATERIAL SECTION C -C HORIZONTAL SCALE: 1" = 20' VERTICAL SCALE: 1" = 5' PROP. GRADE 5+00 5+12 0+00 1+00 2+00 HORIZONTAL SCALE: 1" = 20' VERTICAL SCALE: 1" = 5' 2+74 CUT 15'-0" FLARED END SECTION INV. ELEV. = 4851.00' SEE DETAIL SHEET 4 18" DIA. HDPE STORM L = 130' US. INV. = 4852.00' RIPRAP BASIN DS. INV. = 4851.00' I T 2.5' DEEP MICROPOOL INV. ELEV. = 4849.50' PROP. GRADE I III EX. GROUND 6" ORGANIC STRIPPING SECTION D -D HORIZONTAL SCALE: 1" = 20' VERTICAL SCALE: 1" = 5' 4870 4865 4860 4855 4850 4845 EMERGENCY OVERFLOW WSEL. = 4855.26' (9.16 CFS) 1 ELEV. = 4855.00' 3 CREST OF EMERGENCY SPILLWAY EMERGENCY SPILLWAY DETAIL NTS 3 BERM ELEV. = 4856.40' RIPRAP CDOT TYPE VL REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION 4870 4865 4860 4855 4850 4870 4865 4860 4855 4850 4845 / ISSUED FOR / PERMIT ,' L J ISSUED BY ENGINEERING DEPT FOR: REVIEW THIS MAP/DOCUMENT IS A TOOL TO ASSIST EMPLOYEES IN THE PERFORMANCE OF THEIR JOBS YOUR PERSONAL SAFETY IS PROVIDED FOR BY USING SAFETY PRACTICES, PROCEDURES AND EQUIPMENT AS DESCRIBED IN THE SAFETY TRAINING PROGRAMS, MANUALS AND SPARS. INTERNAL INFORMATION: DO NOT COPY OR DISTRIBUTE WITHOUT EXPRESS WRITTEN CONSENT FROM XCEL ENERGY ENNIS SUBSTATION CONTOUR AND GRADING LAYOUT SECTIONS ENNI Xcel Energy® 0017-000.000S03 SCALE REV CD 0 Z 0 I- U Lu I- 0 >- CD Z 0 C7 0 z O I - Z O U O 2 0 N 1"=20' I Hydraulic Structures Chapter 9 Hydraulic Structures Chapter 9 RIPRAP MORE THAN 1.0' ABOVE PIPE INVERT SHALL BE INSTALLED 6" BELOW FINISHED GRADE AND BURIED WITH TOPSOIL FINISHED GRADE JOINT RESTRAINTS (2) 18" RCP WITH FES SHOWN END TREATMENT -10;W CONSIST OF PIPE FES HEADWALL HO WALL L SOIL RIPRAP OR T=2Dsc MIN VOID —FILLED RIPRAP PROFI LE W PIPE SIZE OR C 4�'" L BOX HEIGHT 18" — 24" 1'-0" 4' 15' 30" - 36" 1'-6" 6' 20' 42" — 48" 2'-0" 7' 24' 54" — 60" 2'-6" B' 28' 66" — 72" 3'-0" 9' 32' * IF OUTLET PIPE IS A BOX CULVERT WITH A WIDTH GREATER THAN W, THEN W = CULVERT WIDTH Figure 9-37. Low tailwater riprap basin NOTES: 1. DATUM ELEVATION 00' = SITE ELEVATION 4850.00' 2. D50 = 9", TYPE VL RIPRAP FINISHED GRADE 9-72 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 2 0+00 4860 _ 4855 _ 4850 _ 24'-0" 0+59 4860 CL DRIVEWAY COMPACTED FILL AS REQUIRED 4 12" BASE ENGINEERED FILL. REFER TO PSCO- STAN DARD CONSTRUCTION SPECIFICATIONS (CDOT CLASS 6 OR BETTER) September 2017 FINAL GRADE ELEV. VARIES SEE PLAN AND PROFILE 6" TOPSOIL AND SEEDING 4855 EX. GRADE 6" ORGANIC STRIPPING 4850 TYPICAL ACCESS ROAD SECTION SCALE: NTS A = END HEIGHT OF FLARED END SECTION OR AS SPECIFIED BY THE ENGINEER, LENGTH B = 2Dy0 OF DOWNSTREAM RI-IlAP AND 3' MIN. PROFILE FINISHED GRADE TOP OF WALL FOOTING FOR PIPES GREATER THAN 48" ELEVATION VIEW FLARED END SECTION NOTES: 1. IT IS THE DESIGN ENGINEER'S RESPONSIBIL17 TO EVALUATE THE SITE CONDITIONS AND PROVIDE FINAL DESIGN OF HEADWALL. FOOTING, AND REINFORCING STEEL. 2. INSTALL JOINT FASTENERS TO JOINT IMMEDIATELY UPSTREAM OF OUTLET_ LOCATE AT 10 -O'CLOCK AND 2 -O'CLOCK. TRIM THREAD FLUSH WITH INTERIOR BOLTS, HEADWALL DESIGN TABLE PIPE SIZE LENGTH. MIN le 7'-O" 74" 8.-0 30" 10'_C ' 36" 12'-6' 42" 15-5 ' 46" 17'-6" 54 " 19'-6- 60" 21'-6" 66" 22'-6" 72" 24'-0" OWNSTREAµ SCOUR PROTECTION NOT SHOWN FOOTING FOR PIPES GREATER THAN 48" Figure 9-29. Flared end section (FES) headwall concept 9-60 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 2 PAD SECTION SCALE: NTS 4" FINAL YARD ROCK SURFACING FINISHED GRADE PER PLAN September 2017 12" BASE MATERIAL ENGINEERED FILL, REFER TO PSCO-STANDARD CONSTRUCTION SPECIFICATIONS COMPACTED FILL AS REQUIRED PER PSCO-STANDARD CONSTRUCTION SPECIFICATIONS COMPACTED SUBGRADE 0 3 I I 711 III 3'-0" _ BOTTOM WIDTH 3 TOP OF FOREBAY ELEV. = 4852.00' 25'-0" FOREBAY INVERT ELEV. = 4851.00' 1 FOREBAY DETAIL SCALE: NTS 3 1 3 TOP OF MICROPOOL ELEV. = 4851.00' 25'-0" 7 MICROPOOL INVERT ELEV. = 4849.50' 1 3 MICROPOOL DETAIL 100-YR WSE @9.16CFS ELEV. = 4853.74 ELEV. = 4855.00' 3 ELEV. = 4853.00' TYPICAL CHANNEL SECTION SCALE: NTS SCALE: NTS COMPACTED GRANULAR MATERIAL STRUCTURAL BACKFILL 3" MIN. TYPICAL CULVERT BEDDING SECTION SCALE: NTS 100 YR EMERGENCY WSEL = 4855.15' FINISHED GRADE SAFETY GRATE W/ 5" MAX. CLEAR BETWEEN BARS (BOLTED OR LOCKED TO STRUCTURE) 100 YR WSEL = 4854.57' EURV WSEL = 4853.07' - BASIN INVERT ELF�y.1- 48 .90' STRUCTURE INV. ELEV. = 4851.00' TOP OF BERM ELEV. = 4856.40' EMERGENCY SPILLWAY ELEV. = 4855.00' 12" SUMP 1" 0 ORIFICE INV. ELV. = 4852.00' 4' MAX FOR MAINTENANCE EACH WAY OUTLET CONTROL STRUCTURE DETAIL SCALE: NTS NOTE: MODIFIED URBAN DRAINAGE AND FLOOD CONTROL DISTRICT - FULL SPECTRUM DETENTION OUTLET STRUCTURE. CONTRACTOR TO SUBMIT SHOP DRAWINGS FOR ENGINEERS APPROVAL PRIOR TO THE START OF CONSTRUCTION r I STAINLESS STEEL 100-YR FLOW RESTRICTED ORIFICE PLATE WI 6"H X 6"W WINDOW INV. ELEV. = 4852.00' 18" OUTLET PIPE INV. ELEV. = 4852.00' ISSUED FOR PERMIT 7 r r / r J ISSUED BY ENGINEERING DEPT FOR: REVIEW THIS MAP/DOCUMENT IS A TOOL TO ASSIST EMPLOYEES IN THE PERFORMANCE OF THEIR JOBS YOUR PERSONAL SAFETY IS PROVIDED FOR BY USING SAFETY PRACTICES, PROCEDURES AND EQUIPMENT AS DESCRIBED IN THE SAFETY TRAINING PROGRAMS, MANUALS AND SPARS. INTERNAL INFORMATION: DO NOT COPY OR DISTRIBUTE WITHOUT EXPRESS WRITTEN CONSENT FROM XCEL ENERGY ENNIS SUBSTATION CONTOUR AND GRADING LAYOUT DETAILS ENNI REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION REV DATE WBS 4 REVISION DESCRIPTION Xcel Energy® 0017-000.000SO4 SCALE N/A REV 1 POWER ENGINEERS, INC. APPENDIX D CALCULATIONS Project Description File Name Project Options Flow Units Historic (Pre-Existing).SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 Junctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 5 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) 'days hh:mm:ss 1 Sub -A 13.88 0.0100 1.01 0.01 0.14 2 Sub -B 4.20 0.0100 0.79 0.01 0.03 3 Sub -C 8.57 0.0100 1.00 0.01 0.09 0.21 0.10 0.14 0 00:39:32 0 00:19:48 0 00:37:05 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Time of Concentration TOO Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ft/ft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(213)) • (Sf"0.5))1 n R =Aq/Wp Tc = (Lf / V)1(3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.01 13.88 0.01 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 1.01 Total Runoff (in) 0.01 Peak Runoff (cfs) 0.21 Rainfall Intensity 1.540 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 4.20 A 0.01 4.20 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 0.79 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.10 Rainfall Intensity 2.397 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.01 8.57 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 1.00 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.14 Rainfall Intensity 1.613 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Project Description File Name ............................ Project Options Historic (Pre-Existing).SPF Flow Units CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 Junctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 10 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) (days hh:mm:ss 1 Sub -A 13.88 0.0100 1.26 0.01 0.18 0.27 0 00:39:32 2 Sub -B 4.20 0.0100 0.98 0.01 0.04 0.13 0 00:19:48 3 Sub -C 8.57 0.0100 1.24 0.01 0.10 0.17 0 00:37:05 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Time of Concentration TOO Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ft/ft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(213)) • (Sf"0.5))1 n R =Aq/Wp Tc = (Lf / V)1(3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.01 13.88 0.01 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 1.26 Total Runoff (in) 0.01 Peak Runoff (cfs) 0.27 Rainfall Intensity 1.907 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 4.20 A 0.01 4.20 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 0.98 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.13 Rainfall Intensity 2.968 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.01 8.57 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 1.24 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.17 Rainfall Intensity 1.998 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Project Description File Name Project Options Flow Units Historic (Pre-Existing).SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 D0.05.00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 Junctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 100 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) 'days hh:mm:ss 1 Sub -A 2 Sub -B 3 Sub -C 13.88 4.20 8.57 0.1300 0.1300 0.1300 2.35 1.81 2.31 0.31 0.24 0.30 4.23 0.99 2.57 6.43 2.99 4.15 0 00:39:32 0 00:19:48 0 00:37:05 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Time of Concentration TOG Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ft/ft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(213)) • (Sf"0.5))1 n R =Aq/Wp Tc = (Lf / V)1(3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.13 13.88 0.13 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 2.35 Total Runoff (in) 0.31 Peak Runoff (cfs) 6.43 Rainfall Intensity 3.562 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 4.20 A 0.13 4.20 0.13 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 1.81 Total Runoff (in) ...0.24 Peak Runoff (cfs) 2.99 Rainfall Intensity 5.482 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (V.): 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.13 8.57 0.13 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 2.31 Total Runoff (in) ...0.30 Peak Runoff (cfs) 4.15 Rainfall Intensity 3.722 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:37:05 Project Description File Name Project Options Flow Units Post SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 D0.05.00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 2 Subbasins 2 Nodes5 Junctions 2 Outfalls 2 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 5 Channels 1 Pipes 1 Pumps 0 Orifices 2 Weirs 1 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 5 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) days hh:mmas 1 Sub -B 18.17 0.0500 1.12 0.06 1.02 1.09 0 00:55:58 2 Sub -C 8.57 0.0100 1.00 0.01 0.09 0.14 0 00:37:05 Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft) (cfs) (ft) (ft) (ft) (days hh:mm) (ac -in) (min) 1 Jun -03 Junction 4851.00 4856.00 4852.00 4856.00 0.00 0.52 4852.24 0.00 3.76 0 00:00 0.00 0.00 2 Jun -06 Junction 4854.75 4856.40 4854.75 4856.40 0.00 0.00 4854.75 0.00 4.40 0 00:00 0.00 0.00 3 Out -02 Outfall 4851.00 0.52 4854.45 4 Out -03 Outfall 0.00 0.14 0.00 5 Stormwater_Pond Storage Node 4852.00 4856.40 4852.00 0.00 1.09 4852.43 0.00 0.00 Link Summary SN Element ID Element From To (Outlet) Length Inlet Outlet Average Diameter or Manning's Type (Inlet) Node Invert Invert Slope Height Roughness Node Elevation Elevation Peak D Flow 1 Link -01 Pipe Jun -03 2 Link -05 Channel Jun -06 Out -02 15.00 4854.75 4854.45 2.0000 12.000 0.0320 3 100-YR Orifice Stormwater_Pond Jun -03 4852.00 4851.00 6.000 4 WQCV Orifice Stormwater_Pond Jun -03 4852.00 4851.00 1.250 5 EMERGENCYSPILLWAY Weir Stormwater_Pond Jun -06 4852.00 4854.75 (ft) (ft) (ft) (A) (in) Out -02 120.00 4852.00 4851.00 0.8300 18.000 0.0130 (cfs) 0.52 0.00 0.50 0.03 0.00 ssign Flow Peak Flow/ Peak Flow Peak Flow Peak How Total Time Reported Capacity Design Flow Velocity Depth Depth/ Surcharged Condition Ratio Total Depth Ratio (cfs) (ft/sec) (ft) (min) 9.59 73.35 0.05 2.88 0.00 0.00 0.24 0.16 0.00 0.00 0.00 Calculated 0.00 Subbasin Hydrology Subbasin : Sub -B Input Data Area (ac) 18.17 Weighted Runoff Coefficient 0.0500 Runoff Coefficient Soil/Surface Description Roof Gravel Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration TOC Method : SCS TR-55 Sheet Flow Equation : To = (0.007 ` ((n' Lf)^0.8)) / ((P^0.5) ' (Sf^0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ftlft) Shallow Concentrated Flow Equation : V = 16.1345 ` (Sf'0.5) (unpaved surface) V = 20.3282* (Sf"0.5) (paved surface) V = 15.0 ` (Sf^0.5) (grassed waterway surface) V = 10.0 ` (Sf^0.5) (nearly bare & untilled surface) V = 9.0 ` (Sf^0.5) (cultivated straight rows surface) V = 7.0' (Sf^0.5) (short grass pasture surface) V = 5.0 ` (Sf^0.5) (woodland surface) V = 2.5 ` (Sf^0.5) (forest w/heavy litter surface) To = (Lf / V) / (3600 seclhr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49' (R"(2/3)) (Sf^0.5))! n R =Aq/Wp To = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fifft) n = Manning's roughness 0.10 A 0.75 2.84 A 0.27 15.23 A 0.01 18.17 0.05 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 55.98 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1542.4 221.80 0.00 1.27 5.0 0.00 Grass pasture Grass pasture Unpaved 0.79 1.57 0.00 32.54 2.35 0.00 Total Rainfall (in) 1.12 Total Runoff (in) 0.06 Peak Runoff (cfs) 1.09 Rainfall Intensity 1.199 Weighted Runoff Coefficient 0.0500 Time of Concentration (days hh:mm:ss) 0 00:55:59 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.01 8.57 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 1.00 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.14 Rainfall Intensity 1.613 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 Jun -03 4851.00 4856.00 2 Jun -06 4854.75 4856.40 5.00 4852.00 1.00 4856.00 1.65 4854.75 0.00 4856.40 0.00 0.00 0.00 0.00 0.00 0.00 Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:mm) (days hh:mm) (ac -in) (min) 1 Jun -03 0.52 0.00 4852.24 1.24 0.00 3.76 4852.12 1.12 0 01:00 0 00:00 0.00 0.00 2 Jun -06 0.00 0.00 4854.75 0.00 0.00 4.40 4854.75 0.00 0 00:00 0 00:00 0.00 0.00 Channel Input SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate Elevation Offset Elevation Offset (ft) (ft) (ft) (ft) (ft) (ft) (%) (ft) (ft) (cfs) 1 Link -05 15.00 4854.75 0.00 4854.45 3.45 0.30 2.0000 Trapezoidal 1.000 16.000 0.0320 0.5000 0.5000 0.0000 0.00 No Channel Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ftlsec) (min) (ft) (min) 1 Link -05 0.00 0 00:00 73.35 0.00 0.00 0.00 0.00 0.00 Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 Link -01 120.00 4852.00 1.00 4851.00 0.00 1.00 0.8300 CIRCULAR 18.000 18.000 0.0130 0.5000 0.5000 0.0000 0.00 No 1 Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min) 1 Link -01 0.52 0 01:00 9.59 0.05 2.88 0.69 0.24 0.16 0.00 Calculated Storage Nodes Storage Node : Stormwater_Pond Input Data Invert Elevation (ft) 4852.00 Max (Rim) Elevation (ft) 4856.40 Max (Rim) Offset (ft) 4.40 Initial Water Elevation (ft) 4852.00 Initial Water Depth (ft) 0.00 Ponded Area (ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve : Storage -01 Stage (ft) Storage Storage Area Volume (ft') (ft') 0 2557 0.000 1 6447 4502.00 2 9317 12384.00 3 13095 23590.00 4 16916 38595.50 4.4 18464 45671.50 0 4.4 4.3 4.2 4.1 4 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3 2.9 2.8 2.1 2.6 2.6 2.4 2.3 ▪ 2.2: • 2.1 Ger 2: 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 - 0.3 - 0.2 - 0.1 - 0- 6,000 10,000 16,000 Storage Area Volume Curves Storage Volume (fe) 20,000 26,000 30,000 36,000 14,000 40,000 46,000 -4.4 - 4.3 -4.2 4.1 4 3.9 3.8 -3.7 3.6 3.6 3.4 3.3 -3.2 3.1 -3 2.9 2.8 2.7 2.6 =2.5 2.4 =2.3 2.2 2.1 - 2 1.9 =1.8 . 1.7 =1.6 - 1.5 1.4 1.3 1? 1.1 -1 0.9 0.0 0.7 -0.6 0.5 -0.4 -0.3 0.2 -0.1 0 4,000 6,000 8,000 10,000 12,000 Storage Area - Storage Area - Storage Volume I 16,000 18,000 Storage Node : Stormwater_Pond (continued) Outflow Weirs Outflow Orifices SN Element ID Weir Flap Crest Crest Length Weir Total Discharge Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCYSPILLWAY Trapezoidal No 4855.00 SN Element ID 3.00 20.00 1.40 3.33 Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) Side Rectangular No Side CIRCULAR No 1 100-YR 2 WOCV Output Summary Results Peak Inflow (cfs) 1.09 Peak Lateral Inflow (cfs) 1.09 Peak Outflow (cfs) 0.52 Peak Exfiltration Flow Rate (cfm) 0.00 Max HGL Elevation Attained (ft) 4852.43 Max HGL Depth Attained (ft) 0.43 Average HGL Elevation Attained (ft) 4852.18 Average HGL Depth Attained (ft) 0.18 Time of Max HGL Occurrence (days hh:mm) 0 01:00 Total Exfiltration Volume (1000 -ft') 0.000 Total Flooded Volume (ac -in) 0 Total Time Flooded (min) 0 Total Retention Time (sec) 0.00 1.25 6.00 6.00 4852.00 0.63 4852.00 0.61 Project Description File Name Project Options Post.SPF Flow Units CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 2 Subbasins 2 Nodes5 Junctions 2 Outfalls 2 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 5 Channels 1 Pipes 1 Pumps 0 Orifices 2 Weirs 1 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 10 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) (days hh:mmas 1 Sub -B 18.17 0.0600 1.38 0.08 1.51 1.62 0 00:55:58 2 Sub -C 8.57 0.0100 1.24 0.01 0.10 0.17 0 00:37:05 Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft) (cfs) (ft) (ft) (ft) (days hh:mm) (ac -in) (min) 1 Jun -03 Junction 4851.00 4856.00 4852.00 4856.00 0.00 0.74 4852.28 0.00 3.72 0 00:00 0.00 0.00 2 Jun -06 Junction 4854.75 4856.40 4854.75 4856.40 0.00 0.00 4854.75 0.00 4.40 0 00:00 0.00 0.00 3 Out -02 Outfall 4851.00 0.74 4854.45 4 Out -03 Outfall 0.00 0.17 0.00 5 Stormwater_Pond Storage Node 4852.00 4856.40 4852.00 0.00 1.62 4852.57 0.00 0.00 Link Summary SN Element ID Element From To (Outlet) Length Inlet Outlet Average Diameter or Manning's Type (Inlet) Node Invert Invert Slope Height Roughness Node Elevation Elevation Peak D Flow esign Flow Peak Flow/ Capacity Design Flow Ratio 1 Link -01 Pipe Jun -03 2 Link -05 Channel Jun -06 Out -02 15.00 4854.75 4854.45 2.0000 12.000 0.0320 3 100-YR Orifice Stormwater_Pond Jun -03 4852.00 4851.00 6.000 4 WQCV Orifice Stormwater_Pond Jun -03 4852.00 4851.00 1.250 5 EMERGENCYSPILLWAY Weir Stormwater_Pond Jun -06 4852.00 4854.75 (ft) (ft) (ft) (A) (in) Out -02 120.00 4852.00 4851.00 0.8300 18.000 0.0130 (cfs) 0.74 0.00 0.71 0.03 0.00 (cfs) 9.59 73.35 Peak Flow Peak Flow Peak How Total Time Reported Velocity Depth Depth/ Surcharged Condition Total Depth Ratio (ft/sec) (ft) (min) 0.08 3.21 0.00 0.00 0.28 0.19 0.00 0.00 0.00 Calculated 0.00 Subbasin Hydrology Subbasin : Sub -B Input Data Area (ac) 18.17 Weighted Runoff Coefficient 0.0600 Runoff Coefficient Soil/Surface Description Roof Gravel Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration TOC Method : SCS TR-55 Sheet Flow Equation : To = (0.007 ` ((n' Lf)^0.8)) / ((P^0.5) ' (Sf^0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ftlft) Shallow Concentrated Flow Equation : V = 16.1345 ` (Sf'0.5) (unpaved surface) V = 20.3282* (Sf"0.5) (paved surface) V = 15.0 ` (Sf^0.5) (grassed waterway surface) V = 10.0 ` (Sf^0.5) (nearly bare & untilled surface) V = 9.0 ` (Sf^0.5) (cultivated straight rows surface) V = 7.0' (Sf^0.5) (short grass pasture surface) V = 5.0 ` (Sf^0.5) (woodland surface) V = 2.5 ` (Sf^0.5) (forest w/heavy litter surface) To = (Lf / V) / (3600 seclhr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49' (R"(2/3)) (Sf^0.5))! n R =Aq/Wp To = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fifft) n = Manning's roughness 0.10 A 0.77 2.84 A 0.28 15.23 A 0.01 18.17 0.06 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 55.98 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1542.4 221.80 0.00 1.27 5.0 0.00 Grass pasture Grass pasture Unpaved 0.79 1.57 0.00 32.54 2.35 0.00 Total Rainfall (in) 1.38 Total Runoff (in) 0.08 Peak Runoff (cfs) 1.62 Rainfall Intensity 1.483 Weighted Runoff Coefficient 0.0600 Time of Concentration (days hh:mm:ss) 0 00:55:59 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.01 8.57 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 1.24 Total Runoff (in) ...0.01 Peak Runoff (cfs) 0.17 Rainfall Intensity 1.998 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 Jun -03 4851.00 4856.00 2 Jun -06 4854.75 4856.40 5.00 4852.00 1.00 4856.00 1.65 4854.75 0.00 4856.40 0.00 0.00 0.00 0.00 0.00 0.00 Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (f1) (days hh:mm) (days hh:mm) (ac -in) (min) 1 Jun -03 0.74 0.00 4852.28 1.28 0.00 3.72 4852.15 1.15 0 01:00 0 00:00 0.00 0.00 2 Jun -06 0.00 0.00 4854.75 0.00 0.00 4.40 4854.75 0.00 0 00:00 0 00:00 0.00 0.00 Channel Input SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate Elevation Offset Elevation Offset (ft) (ft) (ft) (ft) (ft) (ft) (%) (ft) (ft) (cfs) 1 Link -05 15.00 4854.75 0.00 4854.45 3.45 0.30 2.0000 Trapezoidal 1.000 16.000 0.0320 0.5000 0.5000 0.0000 0.00 No Channel Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ftlsec) (min) (ft) (min) 1 Link -05 0.00 0 00:00 73.35 0.00 0.00 0.00 0.00 0.00 Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 Link -01 120.00 4852.00 1.00 4851.00 0.00 1.00 0.8300 CIRCULAR 18.000 18.000 0.0130 0.5000 0.5000 0.0000 0.00 No 1 Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ftlsec) (min) (ft) (min) 1 Link -01 0.74 0 01:00 9.59 0.08 3.21 0.62 0.28 0.19 0.00 Cat ulaled Storage Nodes Storage Node : Stormwater_Pond Input Data Invert Elevation (ft) 4852.00 Max (Rim) Elevation (ft) 4856.40 Max (Rim) Offset (ft) 4.40 Initial Water Elevation (ft) 4852.00 Initial Water Depth (ft) 0.00 Ponded Area (ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve : Storage -01 Stage (ft) Storage Storage Area Volume (ft') (ft') 0 2557 0.000 1 6447 4502.00 2 9317 12384.00 3 13095 23590.00 4 16916 38595.50 4.4 18464 45671.50 0 4.4 4.3 4.2 4.1 4 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3 2.9 2.8 2.1 2.6 2.6 2.4 2.3 ▪ 2.2: • 2.1 Ger 2: 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 - 0.3 - 0.2 - 0.1 - 0- 6,000 10,000 16,000 Storage Area Volume Curves Storage Volume (fe) 20,000 26,000 30,000 36,000 14,000 40,000 46,000 -4.4 - 4.3 -4.2 4.1 4 3.9 3.8 -3.7 3.6 3.6 3.4 3.3 -3.2 3.1 -3 2.9 2.8 2.7 2.6 =2.5 2.4 =2.3 2.2 2.1 - 2 1.9 =1.8 . 1.7 =1.6 - 1.5 1.4 1.3 1? 1.1 -1 0.9 0.0 0.7 -0.6 0.5 -0.4 -0.3 0.2 -0.1 0 4,000 6,000 8,000 10,000 12,000 Storage Area - Storage Area - Storage Volume I 16,000 18,000 Storage Node : Stormwater_Pond (continued) Outflow Weirs Outflow Orifices SN Element ID Weir Flap Crest Crest Length Weir Total Discharge Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCYSPILLWAY Trapezoidal No 4855.00 SN Element ID 3.00 20.00 1.40 3.33 Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) Side Rectangular No Side CIRCULAR No 1 100-YR 2 WOCV Output Summary Results Peak Inflow (cfs) 1.62 Peak Lateral Inflow (cfs) 1.62 Peak Outflow (cfs) 0.74 Peak Exfiltration Flow Rate (cfm) 0.00 Max HGL Elevation Attained (ft) 4852.57 Max HGL Depth Attained (ft) 0.57 Average HGL Elevation Attained (ft) 4852.24 Average HGL Depth Attained (ft) 0.24 Time of Max HGL Occurrence (days hh:mm) 0 01:00 Total Exfiltration Volume (1000 -ft') 0.000 Total Flooded Volume (ac -in) 0 Total Time Flooded (min) 0 Total Retention Time (sec) 0.00 1.25 6.00 6.00 4852.00 0.63 4852.00 0.61 Project Description FileName................................._..............._..............._ Project Options Flow Units Post. SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 2 Subbasins 2 Nodes5 Junctions 2 Outfalls 2 Flow Diversions 0 Inlets 0 Storage Nodes 1 Links 5 Channels 1 Pipes 1 Pumps 0 Orifices 2 Weirs 1 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 100 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (an) (in) (in) (ac -in) (cfs) (days hh:mmas 1 Sub -B 18.17 0.1800 2.61 0.47 8.56 9.16 0 0D:55:58 2 Sub -C 8.57 0.1300 2.31 0.30 2.57 4.15 0 00:37:05 Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max) Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft) (ft) (ft) (ft) (ft) (cfs) (ft) (ft) (ft) (days hh:mm) (ac -in) (min) 1 Jun -03 Junction 4851.00 4856.00 4852.00 4856.00 0.00 1.81 4852.44 0.00 3.56 0 00:00 0.00 0.00 2 Jun -06 Junction 4854.75 4856.40 4854.75 4856.40 0.00 0.00 4854.75 0.00 4.40 0 00:00 0.00 0.00 3 Out -02 Outfall 4851.00 1.80 4854.45 4 Out -03 Outfall 0.00 4.15 0.00 5 Stormwater_Pond Storage Node 4852.00 4856.40 4852.00 0.00 9.16 4854.18 0.00 0.00 Link Summary SN Element ID Element From To (Outlet) Length Inlet Outlet Average Diameter or Manning's Type (Inlet) Node Invert Invert Slope Height Roughness Node Elevation Elevation 1 Link -01 Pipe Jun -03 2 Link -05 Channel Jun -06 Out -02 15.00 4854.75 4854.45 2.0000 12.000 0.0320 3 100-YR Orifice Stormwater_Pond Jun -03 4852.00 4851.00 6.000 4 WOCV Orifice Stormwater Pond Jun -03 4852 00 4851 00 1 250 5 EMERGENCYSPILLWAY Weir Stormwater Pond Jun -06 4852.00 4854.75 (ft) (it) (it) (k) (in) Out -02 120.00 4852.00 4851.00 0.8300 18.000 0.0130 Peak Flow (cis) 1.80 0.00 1.74 0.06 0.00 Design Flow Peak Flow/ Peak Flow Peak Flow Peak Flow Total Time Reported Capacity Design Flow Velocity Depth Depth/ Surcharged Condition Ratio Total Depth Ratio (cfs) (ft/sec) (ft) (min) 9.59 73.35 0.19 4.15 0.00 0.00 0.44 0.29 0.00 0.00 0.00 Calculated 0.00 Subbasin Hydrology Subbasin : Sub -B Input Data Area (ac) 18.17 Weighted Runoff Coefficient 0.1800 Runoff Coefficient Soil/Surface Description Roof Gravel Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration TOC Method : SCS TR-55 Sheet Flow Equation : To = (0.007 ` ((n' Lf)^0.8)) / ((P^0.5) ' (Sf^0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ftlft) Shallow Concentrated Flow Equation : V = 16.1345 ` (Sf'0.5) (unpaved surface) V = 20.3282* (Sf"0.5) (paved surface) V = 15.0 ` (Sf^0.5) (grassed waterway surface) V = 10.0 ` (Sf^0.5) (nearly bare & untilled surface) V = 9.0 ` (Sf^0.5) (cultivated straight rows surface) V = 7.0' (Sf^0.5) (short grass pasture surface) V = 5.0 ` (Sf^0.5) (woodland surface) V = 2.5 ` (Sf^0.5) (forest w/heavy litter surface) To = (Lf / V) / (3600 seclhr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49' (R"(2/3)) (Sf^0.5))! n R =Aq/Wp To = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fifft) n = Manning's roughness 0.10 A 0.81 2.84 A 0.42 15.23 A 0.13 18.17 0.18 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 55.98 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1542.4 221.80 0.00 1.27 5.0 0.00 Grass pasture Grass pasture Unpaved 0.79 1.57 0.00 32.54 2.35 0.00 Total Rainfall (in) 2.61 Total Runoff (in) 0.47 Peak Runoff (cfs) 9.16 Rainfall Intensity 2.801 Weighted Runoff Coefficient 0.1800 Time of Concentration (days hh:mm:ss) 0 00:55:59 Subbasin : Sub -C Input Data Area (ac) 8.57 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description Sand Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.57 A 0.13 8.57 0.13 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 2.31 Total Runoff (in) ...0.30 Peak Runoff (cfs) 4.15 Rainfall Intensity 3.722 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:37:05 Junction Input SN Element Invert Ground/Rim Ground/Rim Initial Initial Surcharge Surcharge Ponded Minimum ID Elevation (Max) (Max) Water Water Elevation Depth Area Pipe Elevation Offset Elevation Depth Cover (ft) (ft) (ft) (ft) (ft) (ft) (ft) (ft') (in) 1 Jun -03 4851.00 4856.00 2 Jun -06 4854.75 4856.40 5.00 4852.00 1.00 4856.00 1.65 4854.75 0.00 4856.40 0.00 0.00 0.00 0.00 0.00 0.00 Junction Results SN Element Peak Peak Max HGL Max HGL Max Min Average HGL Average HGL Time of Time of Total Total Time ID Inflow Lateral Elevation Depth Surcharge Freeboard Elevation Depth Max HGL Peak Flooded Flooded Inflow Attained Attained Depth Attained Attained Attained Occurrence Flooding Volume Attained Occurrence (cfs) (cfs) (ft) (ft) (ft) (ft) (ft) (ft) (days hh:mm) (days hh:mm) (ac -in) (min) 1 Jun -03 1.81 0.00 4852.44 1.44 0.00 3.56 4852.29 1.29 0 01:00 0 00:00 0.00 0.00 2 Jun -06 0.00 0.00 4854.75 0.00 0.00 4.40 4854.75 0.00 0 00:00 0 00:00 0.00 0.00 Channel Input SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate Elevation Offset Elevation Offset (ft) (ft) (ft) (ft) (ft) (ft) (%) (ft) (ft) (cfs) 1 Link -05 15.00 4854.75 0.00 4854.45 3.45 0.30 2.0000 Trapezoidal 1.000 16.000 0.0320 0.5000 0.5000 0.0000 0.00 No Channel Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ftlsec) (min) (ft) (min) 1 Link -05 0.00 0 00:00 73.35 0.00 0.00 0.00 0.00 0.00 Pipe Input SN Element Length Inlet Inlet Outlet Outlet Total Average Pipe Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of ID Invert Invert Invert Invert Drop Slope Shape Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels Elevation Offset Elevation Offset Height (ft) (ft) (ft) (ft) (ft) (ft) (%) (in) (in) (cfs) 1 Link -01 120.00 4852.00 1.00 4851.00 0.00 1.00 0.8300 CIRCULAR 18.000 18.000 0.0130 0.5000 0.5000 0.0000 0.00 No 1 Pipe Results SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition Occurrence Ratio Total Depth Ratio (cfs) (days hh:mm) (cfs) (ftfsec) (min) (ft) (min) 1 Link -01 1.80 0 01:00 9.59 0.19 4.15 0.48 0.44 0.29 0.00 Calculated Storage Nodes Storage Node : Stormwater_Pond Input Data Invert Elevation (ft) 4852.00 Max (Rim) Elevation (ft) 4856.40 Max (Rim) Offset (ft) 4.40 Initial Water Elevation (ft) 4852.00 Initial Water Depth (ft) 0.00 Ponded Area (ft') 0.00 Evaporation Loss 0.00 Storage Area Volume Curves Storage Curve : Storage -01 Stage (ft) Storage Storage Area Volume (1t') (ft') 0 2557 0.0DD 1 6447 4502.00 2 9317 12384.00 3 13095 23590.00 4 16916 38595.50 4.4 18464 45671.50 0 4.4 4.3 4.2 4.1 4 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3 2.9 2.8 2.1 2.6 2.6 2.4 2.3 ▪ 2.2: • 2.1 Ger 2: 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 - 0.3 - 0.2 - 0.1 - 0- 6,000 10,000 16,000 Storage Area Volume Curves Storage Volume (fe) 20,000 26,000 30,000 36,000 14,000 40,000 46,000 -4.4 - 4.3 -4.2 4.1 4 3.9 3.8 -3.7 3.6 3.6 3.4 3.3 -3.2 3.1 -3 2.9 2.8 2.7 2.6 =2.5 2.4 =2.3 2.2 2.1 - 2 1.9 =1.8 . 1.7 =1.6 - 1.5 1.4 1.3 1? 1.1 -1 0.9 0.0 0.7 -0.6 0.5 -0.4 -0.3 0.2 -0.1 0 4,000 6,000 8,000 10,000 12,000 Storage Area - Storage Area - Storage Volume I 16,000 18,000 Storage Node : Stormwater_Pond (continued) Outflow Weirs SN Element ID Weir Flap Crest Crest Length Weir Total Discharge Type Gate Elevation Offset Height Coefficient (ft) (ft) (ft) (ft) 1 EMERGENCYSPILLWAY Trapezoidal No 4855.00 3.00 20.00 1.40 3.33 Outflow Orifices SN Element ID Orifice Orifice Flap Circular Rectangular Rectangular Orifice Orifice Type Shape Gate Orifice Orifice Orifice Invert Coefficient Diameter Height Width Elevation (in) (in) (in) (ft) Side Rectangular No Side CIRCULAR No 1 100-YR 2 WOCV 1.25 6.00 6.00 4852.00 0.63 4852.00 0.61 Output Summary Results Peak Inflow (cfs) 9.16 Peak Lateral Inflow (cfs) 9.16 Peak Outflow (cfs) 1.81 Peak Exfiltration Flow Rate (cfm) 0.00 Max HGL Elevation Attained (ft) 4854.18 Max HGL Depth Attained (ft) 2.18 Average HGL Elevation Attained (ft) 4852.92 Average HGL Depth Attained (ft) 0.92 Time of Max HGL Occurrence (days hh:mm) 0 01:00 Total Exfiltration Volume (1000 -ft') 0.000 Total Flooded Volume (ac -in) 0 Total Time Flooded (min) 0 Total Retention Time (sec) 0.00 Project Description File Name Project Options Flow Units Pre.SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 Junctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 5 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) (days hh:mm:ss 1 Sub -A 13.88 0.0100 2.36 0.02 0.33 0.50 0 00:39:32 2 Sub -B 4.20 0.0500 1.69 0.08 0.35 1.07 0 00:19:48 3 Sub -C 8.59 0.0100 2.30 0.02 0.20 0.32 0 00:37:05 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Time of Concentration TOG Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ftlft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(2/3)) • (Sf"0.5)) / n R =Aq/Wp Tc = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.01 13.88 0.01 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 2.36 Total Runoff (in) 0.02 Peak Runoff (cfs) 0.50 Rainfall Intensity 3.588 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.0500 Runoff Coefficient Soil/Surface Description sandy_soil gravel Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%m) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 3.62 A 0.01 0.58 A 0.27 4.20 0.05 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 1.69 Total Runoff (in) 0.08 Peak Runoff (cfs) 1.07 Rainfall Intensity 5.097 Weighted Runoff Coefficient 0.0500 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.59 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.59 A 0.01 8.59 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 2.30 Total Runoff (in) ...0.02 Peak Runoff (cfs) 0.32 Rainfall Intensity 3.709 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Project Description File Name Project Options Pre.SPF Flow Units CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 J unctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 10 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) (days hh:mm:ss 1 Sub -A 13.88 0.0100 2.61 0.03 0.36 0 00:39:32 2 Sub -B 4.20 0.0500 1.84 0.09 0.39 0 00:19:48 3 Sub -C 8.59 0.0100 2.54 0.03 0.21 0 00:37:05 0.55 1.17 0.35 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Time of Concentration TOG Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ftlft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(2/3)) • (Sf"0.5)) / n R =Aq/Wp Tc = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.01 13.88 0.01 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 2.61 Total Runoff (in) 0.03 Peak Runoff (cfs) 0.55 Rainfall Intensity 3.970 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.0500 Runoff Coefficient Soil/Surface Description sandy_soil gravel Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%m) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 3.62 A 0.01 0.58 A 0.28 4.20 0.05 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 1.84 Total Runoff (in) 0.09 Peak Runoff (cfs) 1.17 Rainfall Intensity 5.565 Weighted Runoff Coefficient 0.0500 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.59 Weighted Runoff Coefficient 0.0100 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.59 A 0.01 8.59 0.01 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 2.54 Total Runoff (in) ...0.03 Peak Runoff (cfs) 0.35 Rainfall Intensity 4.099 Weighted Runoff Coefficient 0.0100 Time of Concentration (days hh:mm:ss) 0 00:37:05 Project Description File Name ............................ Project Options Flow Units Pre.SPF CFS Elevation Type Elevation Hydrology Method Rational Time of Concentration (TOC) Method SCS TR-55 Link Routing Method Kinematic Wave Enable Overflow Ponding at Nodes YES Skip Steady State Analysis Time Periods NO Analysis Options Start Analysis On Sep 13, 2018 00:00:00 End Analysis On Sep 13, 2018 01:00:00 Start Reporting On Sep 13, 2018 00:00:00 Antecedent Dry Days 0 days Runoff (Dry Weather) Time Step 0 01:00:00 days hh:mm:ss Runoff (Wet Weather) Time Step 0 00:05:00 days hh:mm:ss Reporting Time Step 0 00:05:00 days hh:mm:ss Routing Time Step 30 seconds Number of Elements Qty Rain Gages 1 Subbasins 3 Nodes3 Junctions 0 Outfalls 3 Flow Diversions 0 Inlets 0 Storage Nodes 0 Links 0 Channels 0 Pipes 0 Pumps 0 Orifices 0 Weirs 0 Outlets 0 Pollutants 0 Land Uses 0 Rainfall Details Return Period 100 year(s) Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ac) (in) (in) (ac -in) (cfs) (days hh:mm:ss) 1 Sub -A 13.88 0.1300 3.66 0.48 6.59 10.02 0 00:39:32 2 Sub -B 4.20 0.1700 2.41 0.41 1.72 5.21 0 00:19:48 3 Sub -C 8.59 0.1300 3.52 0.46 3.93 6.34 0 00:37:05 Subbasin Hydrology Subbasin : Sub -A Input Data Area (ac) 13.88 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Time of Concentration TOG Method : SCS TR-55 Sheet Flow Equation : Tc = (0.007 • ((n • Lf)"0.8)) / ((MI5)* (Sf"0.4)) Where : Tc = Time of Concentration (hr) n = Manning's roughness Lf = Flow Length (ft) P = 2 yr, 24 hr Rainfall (inches) Sf = Slope (ft/ft) Shallow Concentrated Flow Equation : V = 16.1345' (Sf"0.5) (unpaved surface) V = 20.3282 • (Sf 0.5) (paved surface) V = 15.0 ` (SfM0.5) (grassed waterway surface) V = 10.0(Sf"0.5) (nearly bare & untilled surface) V = 9.0* (Sf 0.5) (cultivated straight rows surface) V = 7.0 ` (Sf"0.5) (short grass pasture surface) V = 5.0 • (Sf 0.5) (woodland surface) V = 2.5 • (Sf"0.5) (forest w/heavy litter surface) Tc = (Lf / V) / (3600 sec/hr) Where: Tc = Time of Concentration (hr) Lf = Flow Length (ft) V = Velocity (ft/sec) Sf = Slope (ft/ft) Channel Flow Equation : V = (1.49 * (R"(2/3)) • (Sf"0.5)) / n R =Aq/Wp Tc = (Lf / V) / (3600 sec/hr) Where : Tc = Time of Concentration (hr) Lf = Flow Length (ft) R = Hydraulic Radius (ft) Aq = Flow Area (ft') Wp = Wetted Perimeter (ft) V = Velocity (ft/sec) Sf = Slope (fl/ft) n = Manning's roughness Area Soil Runoff (acres) Group Coeff. 13.88 A 0.13 13.88 0.13 Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOG (min) 39.54 Subbasin Runoff Results Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.95 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.09 0.00 0.00 Subarea Subarea Subarea A B C 1085 0.00 0.00 1.96 0.00 0.00 Grass pasture Unpaved Unpaved 0.98 0.00 0.00 18.45 0.00 0.00 Total Rainfall (in) 3.66 Total Runoff (in) 0.48 Peak Runoff (cfs) 10.02 Rainfall Intensity 5.555 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:39:32 Subbasin : Sub -B Input Data Area (ac) 4.20 Weighted Runoff Coefficient 0.1700 Runoff Coefficient Soil/Surface Description sandy_soil gravel Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning's Roughness : Flow Length (ft) : Slope (%m) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type : Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 19.81 Subbasin Runoff Results 3.62 A 0.13 0.58 A 0.42 4.20 0.17 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 5.47 0.00 0.00 1.70 0.00 0.00 0.24 0.00 0.00 13.96 0.00 0.00 Subarea Subarea Subarea A B C 403.82 0.00 0.00 2.72 0.00 0.00 Grass pasture Unpaved Unpaved 1.15 0.00 0.00 5.85 0.00 0.00 Total Rainfall (in) 2.41 Total Runoff (in) 0.41 Peak Runoff (cfs) 5.21 Rainfall Intensity 7.302 Weighted Runoff Coefficient 0.1700 Time of Concentration (days hh:mm:ss) 0 00:19:49 Subbasin : Sub -C Input Data Area (ac) 8.59 Weighted Runoff Coefficient 0.1300 Runoff Coefficient Soil/Surface Description sandy_soil Composite Area & Weighted Runoff Coeff. Area Soil Runoff (acres) Group Coeff. Time of Concentration Sheet Flow Computations Manning"s Roughness : Flow Length (ft) : Slope (%) : 2 yr, 24 hr Rainfall (in) : Velocity (ft/sec) : Computed Flow Time (min) : Shallow Concentrated Flow Computations Flow Length (ft) : Slope (%) : Surface Type Velocity (ft/sec) : Computed Flow Time (min) : Total TOC (min) 37.09 Subbasin Runoff Results 8.59 A 0.13 8.59 0.13 Subarea Subarea Subarea A B C .13 0.00 0.00 200 0.00 0.00 1.92 0.00 0.00 1.70 0.00 0.00 0.16 0.00 0.00 21.22 0.00 0.00 Subarea Subarea Subarea A B C 800 0.00 0.00 1.44 0.00 0.00 Grass pasture Unpaved Unpaved 0.84 0.00 0.00 15.87 0.00 0.00 Total Rainfall (in) 3.52 Total Runoff (in) ...0.46 Peak Runoff (cfs) 6.34 Rainfall Intensity 5.681 Weighted Runoff Coefficient 0.1300 Time of Concentration (days hh:mm:ss) 0 00:37:05 GRADING PERMIT APPLICATION FORM Property Owner (If different than Applicant) Name: Company: Address: City: State: Zip: Business Phone: E-mail: Signature Weld County Department of Public Works 1111 H Street Greeley, CO 80632 Phone: (970)304-6496 Fax: (970)304-6497 Applicant Name: Chad Campbell Company: Public Services Company of Colorado (PSCo) Address: 1800 Larimer Street, Suite 1300 City: Denver State: CO Zip: 80202 Business Phone: (303) 294-2177 E-mail: chad.campbell@xcelenergy.com Project Location Job Site Address: Ennis Substation County Road 59, Weld County, CO 80643 Section/lownsh'cp/Range: 36/3N/64W Parcel Number Access Location: Site Accesses onto CR 59 (East, West, North, South) of CR - Northwest Project information Is this a Use by Right or Planning and Zoning Case? X Use by Right rAPlanning and Zoning Case Planning Land Use Case # (if applicable) is this in a Floodplain (verify with Planning Department)? (Yes/No) No If yes enter your permit number (FHDP) #_ _ Description of Work Being Done Work will primarily consist of construction activities associated with the expansion of the existing Ennis Substation including installation of new drainage improvements. Construction Start Date October 2018 Finish Date April 2019 Acreage Disturbed by Project: 4.7 Acres Required Submittal Documents ❑ Grading Permit Application Form u Plans: Scanned electronic (pdf) or hard copy of 11"x17" set (wet ink stamped and signed by Colorado PE) • Grading Plan — contours labeled with elevations show any ponds or ditches • Erosion & Sediment Control Plan —showing placement of all BMP's to be installed • Typical BMP Installation Details & Notes —for all BMP's to be installed • Proposed Seed Mix o Construction Stormwater permit from Colorado Department of Public Health & Environment (CDPHE) o Fee (To Weld County): 1-5 Acres/ $50 5.1 - 20 Acres/$100 20.1 Acres or Greater/$200 + $1 per acre over 20 Pursuant to Weld County Code Section 8-12-60, the Weld County Department of Public Works reserves the right to deny issuance of a Grading Permit to Applicant if the Applicant has not received final approval of any required land use application and/or prior to the satisfaction by Applicant of the terms and conditions of any approved land use application. By submitting this Grading Permit application, the undersigned Applicant, under penalty of perjury, verifies that: (1) they have received all pages of the Grading Permit application; (2) they have read and understand all of the permit requirements and provisions; (3) they have the authority to sign for and bind the Applicant if the Applicant is a corporation or other entity; (4) by virtue of their signature, the Applicant is, upon issuance of a Grading Permit by Weld County, bound by and agrees to comply with all Grading Permit requirements and conditions and all applicable Federal, State, and Weld County statutes, rules, and regulations. Applicant Signature Printed Name Date Revised 1/23/2018 SYMBOLS LEGENDPROPIESMCCW kustoi writ 'aimSWAM STEEL Wa( BILL OF MATERIAL IRK &. REIMON tc4tLO - 1- MORON LETTER A 1 GECTION J 1 I.11ll`ET OR ` ilictoottaminot T , DESt IPikON SECTION ION A -A - i°=1' -D"- CQWMNGRQ COLUMN GRID FOR SPLfi VOLTAGE S1 HOLED& 15 DETAL arTailkcskjarr DETALL.NUMBER GT1NA t4N DESPRO ar M. + 4 sus - DEMTTTLE 1 Twird.4, 7,41 - — ant GE T4 11 OCTAL SCALE DRAWING NUMBER SYSTEM 11�-EA '.+�� yW,�IIIiyu�- y��LL��ta�7yM5i!-redi?y�.`lLt:1 ya_'A 5.;1d Uv �L" �.a��icc`!tlllt .€+.uy.i'�ai<ORiIMTN] tiiit Ak C DRAATC NSW FOti ;Tra J Q,IiI-a,1 JitlflAINEFI KitArteasn POUICak.501S a r� AND IOW ; :, MatF$IS'd'� S 4 tetare layTimir ONAAi! TO '1 ii' .ATICN CWE ' S GENERAL. ARRANGEMENT: ULTIMATE g3RIEAAL ARRANCfr sift PLOT PUN. GRADING PLAN, UNDERGROUND OftSrfittrioN DRAvelso BUILDING: ARCH! i Ei,:t URAL. RECIRICAL FCAkEStM45 UGlifyi: At pampa. CONDUIT AND Boca V9l1LT.$. Pa PITR. COS01T! S, DUCT BNIW, CABLETRENGiES, Na!) CABLE Ott K.E$. CONTROL PANELS: SMRrCN@OARO DETAILS. RINK. LAYOUTS. Pa GENERAL ARRANGEMENT . CONTROL a RELAY DROWNS MIMIC. ELEGniact EQUFAEIT AND STRE.ICTURE& ELECTRON. EQUPIENT, 8115, LINE TERMINATIONS, UGHINI IG PROTECTION. AIDA5SOGIATED SUPPORT STR1CiUFE FOUNDATIONS: FOUNDATICALS'FOR ELECTRICAL EQUIPS iEMT.am StPPORT STRUCTURES. CONTROL WIRING: WIRING TAAGRAla salaams CONNECTION DIAGRAMS ONE AND MEM LIE Gana IC DIAGR 4S. VENDOR DRAWINGS: MIS . MBO4JS EQUIPMENT. NCUMNr5 AIJ. Autiu IGT1AEu EOM:SPIECE7CA1IIN DRAWINGS. GAM LANDSCAPE PAN Aaagon44LT1O MS - IL OA eat rr ceka �1 f 5' cotcaTTEM WOrem AAiri tF> gjrtile1: 104Z Lit: rCl M. 1.044V t'rt iT:+1L v.i. cartipk.00, erthatnacHuat NT 0110,40011 Pgif NultspuiIi rt is REIT IL TrP ukt trio Tz' Per INC0NFRAZT t IltaJO NTRLLER WKS WiEtitAE 417=E_ i SMOGWAAL TORO CCM T etei WWI t ni C ITED'tJ'5i 8ai',TE Xcel Energy LAM ©0wuaL, -DrMoaa ELECTRIC SUBSTATION ENGINEERING ISSUED FOR PERMITTING 10/15/78 A N A.0010165. 001.00 1.002 'LL'WORK M -10 M, ON fica 1itG& i{ Lf fl•tio & 1 8d`E W7fF! tC. SeA I4t c &w. NY S F Ca..! - STANDARD CONSTIAtat x' .1' ECWI C ATIr''rr FI]FC SUM,IRTIOti t.C". �GMi.'3TRUC URAPUL . UIC NOMAJ RIL 2U1 t SY Tt iit"vr s-Dilean'r v.Odra? Aa'RU,:9ti. VICINITY MAP • V a- uTJON ADDRESS_ 13495 W COUNTY ROAD 61 ICI ENS@ JRG, CO &643 ENNIS SLIEST/MON '�!@ST.ATION GIPS: LATITUDE: 4 i iv SS- N LONGITUDE: 104' 30' 3ZY € nit e1Wi�1 n LIgT mar TM51 SHIT TOW ao��oartaamms._ !.mm tun 771c -55W 1_ it udiPd-Prw. Mtuttoci a lI Efi DMIKEISMCDEIRIFOle reAISTAILsellOtai indri/iTafilm � 'i!al�a'ai aia�Pr• �'ra— •Sb1� �� -z.— we eSienatS—silia'•i se. a a+a _s..r ENNIS SUBSTATION INDEX SHEET- MIL ENNI CiarcefEneffir 0017-000.000502 3 0 i A e I 1 • Ditaretrrrn- ccorergie It •s'a_n1 i' =Urals'• I • I I • • V. COW- I IC FEW, II ND' 09'OD.1rE L 1 e • • • • • • I • • I • • I I i • • • twirFi-.:.1'y 41/42:401p-tv rung • °cur_ MCe•4hs UKAtm%Jr _TS 01/410..10C EL.:{id-y IIIii,s tatt I • rat' r I I II I . eye 1 • 4 • I • • iiitasISTrcoviiia sir *Wit iii ltaw • 1 I t;1r.r fl •*Lr'ir! Pragna t:l I—a,Ttht, ,`' • . e11• e• :•. r� • ••- c • • A C • I 1 61471 1 sans 471'.2 t tier - --h ,t� rU_ - i 7 +wi`e 'wlgs oun' WM; !r i't Ki18F's. unis s k • rya trrpwo t. frfritegitn sami dirinth R. r DMA- P RSV ■ &IOiaR r. Icaetitr ' i4 TWEET EASE LENE • I, ---„ sT�s'r_. W4 - tsThs. I$$ rr: Ir +rr:. r pitrft•attta4y b..* rval ascii rot astirts-C 424 asmins.•tn►lar nfl It 191204104:d e TM, Via (leo. •466121• at ILI nnr a Qat4Uir R•Ialvw�R�s+�a; wt assr•,b r_ Lem s '` Ser 5911! E 471.21T tritigrasiartallia 4O4,1,rass- 1 9 mr- C'4 rre O z 6 1, a t 4 1 1 1 perome ' - tr■ it. la ti-Pitibis. Ai :'W.:rr C f CI ii. Or LLD curt V • _J•ase% Ilianager 1 • - 1a poi ,? s, ' Ma - It Whit fi - ._- -_ 1/4- lir-al11/4 t 4:.r ttr - r 1 401.1. BAP Y Sas LEGEND Al ISSUED FOR GENERAL NOTES d r'4 f 1_ 1tCO i�yAflC•I•IR AATTIDIJPROVID®HYiE O(]S iG Si rale ill/GDINGSd ilR &TA-T*ir MS;itt bates orinliiks. ttaltortfterAL GRareiza ul i a:DOMI16 SEP1134BER 2S, arils 9 ,40r sort tar is a0P sGiaE III It i r+ e Mae ISLIPR es �+s• te=r ■ • �• m e !!a•s IPIMPU n■ a 'SUM �n��arr •.p iui��. Y tr0--.c ow issl••s.sarra±-7ear.a, .�i P•aPr '�a�. 4_1•W" — r— - ! f t• • r —t !!rtOttasse ENNNI"S SUBSTATION Topocalisme mow PLAN I � .. clai 9ryr' 0017-000.00080X i A • 9.14 Is J t I a IN • LOC illingt413410 f • • I 1 u ,3 ?lc+a . PT aF 1e�"r1••Ja•4yy��1ILA' 1.lr•.'•a Li.r. • a •4 �i�4rWlh? Fe'�Atl,' z Ettaialusigt4 r ::.`Fr fins mroboottr „Lae et' • aY i•" .ririE.1d 'a:L'ddi &Cr a a4tSM.•M' �- * L. -••••• la1S•• ii LIETortba i.LfY- • rip air 'an Issoit.* M JO' itt Mal it CIF:. a Asia Y . -itat real " a • Lary ■ •i1.71r arra are • • �t .ler •. ACAS= CIIIIINTOtiala NOn--rtr - � - 4 �rl7t�a _4 �._ -•--t` - air ate.. aca tt Olin= rtrnwrevIt - emu -4111 1ectrom rCurb 7f.ar1TArr s i ANsurtscet tar' tA(�•�a6 ad Per Daum FAST -WEST • BASELINE • • • I's NOSraL C relit :1 olVget• �- �••r ' "a• Y • . . .s - s, > ,• aas R� r • ♦, - triztaitiTht —417,1 ieTaa N cwrit mil •- `R+fC.- sr g •1' Al YTS •II IT. s a -u 9 t. tiro +.tIiat a -. • t Islit7E$ t. tti rom au--a- Ltia' •atjagS •'W 'ti titetros f . a f'Ii-r L.i C a glgun= L'1 Li11 PLR` ...Ur IR S a =a * strain A Wit* _.s a1ri`"i aEinar }}L norettitg 144 -4ia •- ° r J• aE -aria' •.. tiLtrn knitwear' NonsAr 1- WIVEDIA4 t*,.. tit •'tli•1_7t sin WAIL Stir N %ti ' : P • it x lsr.Allauc. r.ntfa" ti: tA'►'l�11 ilir - i .Iit�T•iQIJa: r a lia+Iral +ey rC LF , -c * T=- MSS 7 r i r6+ • a IPINISAG ,1 at Mesa ,�l a'cr'a7M's•r• w , rrosaidor r! r' + r r • t, r 'A • r r a S • f. • • MaI Mint r+.r 4 • W •Pi a t `r. a tramots fr+ agar d • R ▪ t- -I ill ire a • a •- s% •-s • r , a i - z Sum a 1 • •• t 1 • -a 3 V • I. • 'p' j— i . r q Nett, *'• eft a • j I a QENERAL NOTES 1 LOCATION OF DE NOIIMIRML FOR GRADE ELEVA7TOIj 1$ TO @E SET PAJSJR TO °NatiC7iOIr 1 Mee'L7i -j at am Fug scitirw4.1 £D OWE ELEVRtT1OMsARE IolCATEG StETRACT YAJin ROC1GOEM H FM SUMRADE N4 $(M33Th71ON GROUND AREA a SITE Wahl l SitN-4- E saa�-S34I r •w skr, a_ta aIT1lI Ca. Watt ItsCesiA! ' cClgOA1)014 tram a',Cac r r `.T.. gtatt.w.O nueI1AFml� pant G HAM.EOUI CAL Y�d'^trogig1MF . PAM Y a'm • pa t w -1G T altitt IA...•..MMIras, NictrWilhidrWa PILL gMALI DE MOVED FRCIN SIC 'PM A ass rthialar'16CWartrifcb Ary arm OF 12 was, tip14►Lwi�lFdliCti'LMI`'r.itttt atYCliab14£. iginap£pF'EDfaxur. a iuiRaAA t S iniatnst,0444.trI arta alaapca5warpARtra7!I rn T SreGMaDE*Ma.BEPROF-8O.1112 PRIM TOPLACEMENT 4fS1Rt ni nFILL MlT9lAL.3DA3 VN•YCJ1 RUT OR OS11tTSC* DYS kpctE 54PLL GE. -TE ' BY EITHER SOKUTi14G OR REPIAt&MEnt oR 8Y SC+rtgIFYi HG. DRYING /m3 REGCfIU:TI/G d STRUCTURAL rILL NIATERIALN Sakti BE PLACED MUM NO GREATER MAI06IMMO Vi 1wAI FILL MrATERMi.3 MALLS' COMPACTED T TomO STANDAa P{icmmaft *OVUM DRY Di3MTT4' IWITH It31lSTUREtCA4TERTP ROki d 3%. WARMS Men FILLcEP'TNs DIXEED 5 EEL - f. THE MATEAAI. SHALL BE COMPACTED Tb 1d6gtt3FSTA'eM»APROCTOR DEJRSIYY. 11 SUBGRADEMMI.TIIfii2iamb T''1[IPLALLtoPCeSITILfrn A ;Ambit raOF 12PCFrAND ozimpocTED:3sea- l eirr rikkgircoCr.Ir+g a2s,yy&WuI artrOErlslTY f2.. MESS $DI(.POW 13SSt]SI+SRVGTAtITiESTO BMPROPERLY D D OPalmatt on ittllLZEDINLMAQ@OAPINGACI1IITT'1EaNCMNaC'A .W _ rr erptar(mamas ecre. tD 13 BASE SHAM eEMA= ha LOOSE LASS Poo -alms lion 6 INCHES MC COtPtCTED TO MK OP E7rW DWTR P F ROGIOR IMfljJ M COY DE uszre. tOIWERLMLSSAM . BE FLAOESS0*FROiFJr1 SINGWsaere •la 1!L tarn c;INInCla WALIIIMEMPOCIs Pan Yr1 :'H ict.. i.uts irr & t "Wfr {aS7�1S CaTTJM par tr, [x.11" t .trLar, tYli°r7 a.1 flfl Ii♦1St EI.t T7 AU beta Aa r w 1 g CPATI Mgt Titcgoinirosougaiiiiio T'NAx irii suit WS an powwow 'sYllliL'PJ:•rtelid EILiiemew) inns! Ytorn ninwarraic Ctimilisseftps labia @IMAA L INIIiAL.ERsionAra SEtamer cOrtfl LSPERTHESWFE • AV, Ada (S SS/ 1TE art 7,7P TIC iJ1ETi rils seta trothitts Sit pus E 4Pdi'T1 rT1RTt1':#aC7yl l infatr5$Eiia$ onOf R!A4Faa9 MA�� 4 sirtiapura.0 raterigtkirtiiihtlifilairiese. affil laab-&ir ttr norcc1low i M'T:4r 4.prakiteyseOnto* ta arT1Carl.*9aaT.EPLtJts • Ai t1 l' :Yllft as AMOra =It cttPt LOCA') L a ON Irsc AradlaaaC 1 KIARRMAXIM S$CRJL_ I GE CtIAPLEra WITHIN 72Woks CFcato11ERY OR AEOM AS FE1O COMM Irl5. ULWtMACEw. 2 TR'IEOCMCIRUC11CMI ENTRSNCESHALL REN41ITAWEDeMECAAPI46,4RQom.. WITH ALQRIDIWL AGGREGATE. 3 REMCNE MN OMB 114AT MO ME TR'ACISED OFF -SITE DAILY IMEA 1LAr*j1QN PPIX DIfi a (aitt s ant iii' • -actrirCl:atf1 hit :Isi 4 AOA Tag taus a t +oMIr ASST ft Ao.1" JS6.3.41olatt.A•!Ti WI PitalCat boat xatmM C VaAgtY Misr Ural% CirM friti PQM'T�tic:l s iscerm TY. at mit raac lYAi>Ws.iIaIJi.a cox oat." 04304 kiciAcr es ! 4 Itstlackt CONTRIETA 40.1.6e.agatjcuintr. 2 i____CUO3ISCtl@v CILJTtITYLS?S9LTEaNJJDE7H>sSURSTA11DNMAX Raj'',Ra Fs OMt3Yi176aNrROatL FIEL UPERATICMSATL€asTTIM (1O) 1169E $la1•sPRiOR TO J REFER GC1RSiftAt TIOM SF'ECIPICATM StGSFLOT'D C4.& AID Prfri OL 6I16STATION TARAG?bt-SPEOFICATIONSI FOR Atom: 4AL LOCATE ARLFC R tatItlai, a DRAMS G-9 ORALLNOTRE RILED UPON ASTriESOLE EactstoE(1'P (mW.TICHREwan INDERORDIID UTiLR1ES NSW a LEGEND a- : jaM • • tartan flies t faMP.K. WIC !Mg Mira L`1.JIln" L'4 IMS$ Td1Grrie CsilliwIlirsitl tnt*iarkin comas coma +• c911!L1.41 Iran IMCLR>AirMill WNW lilliklattir Pan Atria Stoma ITIS *I l�tilr+4a 1+_Fi7 ISSUED FOR PERMIT a s as a • Af 5i'_J1t AI A I' • O alaritar-Sit Pee rile n um Otani lea•let as NS aa•lr y A !er •sa ansai.asa .mss _. re.aw. •� is EL- a •f Sat fak. malt-synf' i•S•i! nada- ENNIS SUBSTATION CONTOURA s1) SWING LAYOUT PLAN ENNI Enemy - 0017 -000.000902 r=I AVM 466 +860 4656 PPM Qe60 -11 n41t11Yda` Vet- trAtoik "A - FROP GRADE 'WAD NIG h tL Y G• } 4' J2c' ROCK --r 1.4_12 U.Ctlt l•L r a ' - .r . - r a s��'4'R#+4� Er S , 6`'SMANIC s'' �Y1YPE'ING JL LI- 'i ri .rd :pi.," • ��♦ yea - 15 SECTION 1101 otaft. SCAtt 1' _ �U votflcld. Scat r -it r 400. Er 1+0@ SFE DETAIL *11Ti I a cs Vi=a — SECTION icocairA41.win= r -r IWTK .ecatr+r r GANSTAMP.. r same 2,04 ed'. i No *that a ammo waL. LXM Q3. Est• aa.i. I r-/ Eat otio aS j tr OfiGit a_e 51110129163 SECTION tiorscaoksaav-r YBirni.9cAta r ks I + A "elk m anal. MIrc Or Lial.ka et. 1 ZCLLW' a —t SECTION C -C kg:ce KSeer- ' + rncK sc.t r - a' 4.111 Pra7 VIM I !VW ; X3, a At 16 C!'Ai e. a. EMER+GY SPILLWAY DETAIL 441.4 bear i t rtn c Ania .Maarian Nee .r nom• -SS s.a 1..ta aii0 / ISSUED FOR / d SIT 1 Meet VAGINIENC COrit afe -- 'i IM/1- .. alaOat-+-wPSLIN11Frw?wawHlS m .+Rs Sa.riaa•c ar lima IPit-- -, a...a1...ortarlaO:T4t+m.sll-01117fl's6a..cr'- - .+11-...,c 01s% a.-aiArRP4•-i•AP_ —'w-..---,:ac -mat tr as ss EN NISS SUBSTATION COHTOLIRAI?C L'IG LAYOUT SECTIOIC ENNI Xatinsfyr 0017-000.O00803 riqff P HyrLvelc 5mlcoaec is! s �✓01. 1•s HR. mumsilts�I=9e.•F—a s V rr COM= ee-aai- •1.00at! OR FT3 rEFEiMll immerp WZIIS 0 "-- Ea Tail MatE ' qATuwF�gVialc'teX Gi1T ELtvATKi% MO - r, r PC : r Fa « Axe 1iti d M Y 7 a .... er W-- .T -..t` • t It r - -raw -i-r-..ra. se as • ea a a slid= Si tray rr91.37 Leer cai Maar ricrap haai. r7: 4t 46tH Urtaa QCJ1143pr and Fload Caaral DlSprit Oman Swan Otunp iricnt M Aual VDI.ae2 C's .., CL &AM HAY SAO •`df+IL4 TC 17.•ease SAME Mr ft1 L REFER TO PDXr --STAND PoDS9TR<14T1Qrl ( 1JCTCLA LORBETTER] Scoianba 20 MM. GRACE 'REV vulEZ '- SEE PLAN Abe PROFILE 8r TOPSOIL AND MEIAlmt ASS Est a r';rSL'iPldy' a TRaPIPCI ESN 'TYPICAL ACCESS ROAD SECTION se alPtn. I$4&�Isamu* trsistas Ujansr tear At' 1136 a w than: a. r _ 1.. j Man �i eirAllaN tiWW -roe IA" r cast cvoro Cr E u A Mal Tt & it. CrcW 0.1 'M. eL`Sakfl-f m C*%Sv+XC TC Z It P II 4a L ( MO fYY4 Los, OF Iefah ... twirls lu6i nrairJra: 5Tm v57►LL .tan DCFCANE5 it: ST $.1PST9tAii .3F Atit Ur LQ•RC +T ' a-o'CU3O& uui ;-.a ttr i 114a VIOL %Farr EN 'MICA -aninCvan Waal ~oral Ref !Fi'all "—efts FS I4I1 pROFIIIPI' . ar et", AIL !CO4 !kir 'itaus 'a Fitlire ►'x,24 The r1 tod fe3w (Fail IlesOelall ccoalri 441 UctnoDratAauraol Row Ca la Chimtt Scoutibcr UthaA SIAiat Diaroa& Crllena Itaual Vane? PAD SECTION SCALE WS terra rim* arcs Wr,Jafer:AC M u r LAW Moaning r41L rPEFERTOP KiDastu4PARO c alpuer}ON 6R?c*1Ck1IONS COUP AC19)IgsASRECi ERGO PER $PEC^IFI{;ATpiE1 TOP OF FOREBAM ELEv. r4dra%O` = : 141:.! •A VoT (ti tir 44-m4 lie FOREBAY DETAIL X'IW FAm 11JP OF scrCOPCXX ELEV. - ICS I .r c l 1I MICROPOOL DETAIL SCOOP NTS 100-YR/WEE 9l8 CFS ELF 485204 J 3'-0'' ... BOTTOM MOTH EiEV . thS5AZO TYPICAL CHANNEL SECTION SCALE NTS _ir iv 1 emit : f • itpir d� s- r S. A f .01 J --, r J" d fet f - 1 r 1. I � ; Jr. fiisd .� J f s� s- Not ti CONPACTED GRAMMAR MATERIAL MReiafSa ralLovnt TYPICAL CULVERT BEDDING SECTION semen r*TIP Cverceic. •a! +- v,}p tw- tt er e """ "auki now kola is FJy 'O e nth IC* WraTTill until VD ORIFICE Ca Wier rmv.eLv, ANSI WEIN 6kklE VW E MAX MEM '— o eO M f TO SiRI}CUJHE) Ea:25i apt aurora, tell 'mu! IdVd a an D,r tramp OUTLET CONTROL STRUCTURE DETAIL WALL- N WM ROOF= WOK" DI?AfiNfaE F LOCO C CAMI.Ot. DISTRICT - FULL -SPECTRUM CWMPfTldiOWLET NTRIfCTU*E Collis CIVIa DPW MAP GRAMM=FGR Etsalreals APPACAJAL MDR TO THE START OF GOtISTR CflOM • M'] ram 1_a a. La aaa aa. r siilrla, s1> 1064 FT CIIPFSIFoGTTb ORIFICE PLATE Wri7iRCN WINDOW PJY. ELEV. • ae2oar ISSUED FOR PERMIT p p f et sL> t 4:.`L'tt new t•, ,anise alli aua rearaWsa,a — I cr.Qamnoegn.sa m..l•______ —ir-ianitrt'Ii.r.+.i+. ala-,..r_a r -r1 I+MTAr 3b esra.lt..ir,ar tS SUBSTATION CONTOUR AND GRADING LAYOUT DETAILS ENNI 0D17-k30UMQ I}4 6!1 'I PUBLIC SERVICE CONIANY OF COLORADO (PSCO) ENNIS SUBSTATION EXPANSION BMSITE MAP COUNTY ROAD 59, WELD COUNTY, COLOR/44,D° GENERA. Molts 1 ODNSTRIJ OM IS PRIMARILY TO EICRMIu m EXISTNG SL18STATIQM PAD IE+ISTALLAt )tI qtL ELFC!RICM. FACiUnE3 ANO CONDUIT AND CONSTRUCT A PitliCPOSEO DETENTION Fpwn. 2 Flt1STINGAND PROPOSED TCIPOGRAPHY. GRADING Amp DEStC,N. PROJECT LAYOUT AND DETENTION POND PROVIDED BY POWER8 ENGINEERING - 3 THE PRQJEGT AREAMD SOL DISTURISMIC'E IS APPROXIMATELY 4 7 ACRES 4 At a IS FROM AN £ isTING DIRT ROAD AMIIN AN Exi6T1NG EASEMENT. Hills ROAD MALL RE MONnORED FOR WHOLE TRACKING OF SEI3SENT STAGING AREAS MAT AE MODIFIED IN THE FEW AM) RECLINED ON THE LMP SITEAAAPS INCLuCwo ALL FEATURES ittarkiN THE STAG N G AFB 8 PARTING. PORTAi , DUMP& . �n5 AND MATERIAL S T'ORAGE a_ BE LOCATED IN STAGING ARroA_ LOCATIONS MAY BE MOWED IN THE FLaD, 7 RIG REDS,' OR OTHER PRCM5RJEFARY PRODUCTS MAY BE USED IN PLACE OF Roo < SC K.S OR SEDIMENT c otrRRc L, Lam-, f '2',' ° '. .' t17_ A�..49C4ICOEZELSIENTCONTR01 PRACTattAMDI edits PI CTE-;tt.E swans ANNE MINI i* NAMITABCDdo Sense .T n -c .. Pm fink i Ad!t8 PaTAL ATtClk OF met AA* IiiPtINEPITOOTON OF COVORDIMISTVE ALSPIMTI0N,. wsinsmcg pportans, R1 ACCCROMICEnni .; t MME NevALD bEACColeart ?O Vif7' TatCOCOON; I W I$+ I1 AFI.d. NUT P. ..LM,TEIY INAINIMSCO IN lectolltDOCE vern mice DOPIBEFING., ii'tIT cct"ntQ4.?" i 141GLEicri to REMOVAL et C=itant>CMAASIT tweeternar TOLLRAACCS.r,Ar THE ;d1 G. C1 a ITOif SO °3 R* TMi ECi WCTtWFLt hl ) Iflr'sT SE iAtr^4" .E_ir. Y D r 1/.4.. 51ABlietTIO4 ViILL PPalf CONSTI DF AMINO (4144K. SUMFACIPeraOF ROADBASE AND GRAVEL YUITHIN TIE E SUESZATtr1N A4C teiGN40 trafas moat AAf inn verses otgtpjJL BLr J4 ET5 ON SLOES 3:1 GR GREATER 0UTTUM tsAISTATOIOSIAINI tat TIME 10. MAL trtAbutArrof ! REA flfl L. 50k. OrruiVILKNOaccroratA r ri tWEl WE IME i COIL I.E-tE , Oe arikTfitt:DOVIIR Hi I OM £#TABC 514 t *rho XMart OF AT tat7 7041.01 nr" Ina; ; r*! $t Ft4Par PonSCAL MSC& eta itzTOL FiltisCPON Irk KANT rld E7t10I, `r 11 VEGETATIVE COVERAGE DENSITY DQFS NOT APPLY TO PAVED ARE& GRAVEL BUILdMGS OR OTHER HARD SURFACES IMPERPZASLF AREAS. 12 SEE APPENIDIx [SF S1nMIW REPORTFOR SAD MIX sveccICATiONs PER WELL; coUt• Y RE41UIFremenS 1WLD COUNTY ORTIETSAI S OLILOI BE REVIEWED Ann Foams) Fos FINAL $TABMLI?kT1pl4 13 fi'1E Cam! ISVARtiaR5kiM.° P>Fit'APSdirOR 4k=7ttAi.J41FAgAigA clime win new & THE was catiffry 'DUBUC Y iTE FOR SEED 'tThaTMEAPPUCAST.E to Ian raver" Mttt P118Lr WDR%ws CAN 4 HST 4N: ISE= T 6 A• IMAM' sem tit 14 RECEIIAMG fdA rER5 BOX ELDER GREEK AND WELD COUNTr ICA CALL C ittautre 1400472-1 ep. n . `�"! _-. Rte+` ams "�° r.a 4asamp WitIGHT WAT ENGINEERS, INC 3 W. 2GIii 1 Mt. SUIEDICA DOWEL CO 1431111 WSW, 7FAX003)41a4Cao PROJECT LOCATION toad 24 PROJECT LOOkTI N Can* atfiaft PROJECT T.00A77t j: SECT. 36,. T31w, R64W Or THE 6TH. Y.M. NORTH SC+4I.E IN FEET i'! !G„ tobr 4 CONTACTS OWNER DEVELOPeit, Mac sERVICE COMPANY OF COLORADo TWO WISER brte1. SUITE SOO DENVER_ cc ectm W NNW MTH KgEtar. 1oci* tadiVER + MI A CML Ems; PS}V1l13ts ENDIPIEERS. rdG, 3EEt18 SOUTH 1114ACBAORTK BOULEVARD DENVER, CO TRIMS CONTACT! PROEM. MA A 3ER HEATER BRI4?f tv 340 7'1 044 ►ElV1tSER-CI RICM;EITVOELENERGY COM caehlt.tt. A szr Emus PE Iii,¢,t t.E iaT 552‘416-ittt lote1>tEie RIGHTAKT t7U CONTACT: CA LE DIY, PE. PM' STUARTTORAASO9.. pE 003-716-0262 DALE la4URPselgeOWERENG COOLO SHEET INDEX UTLE 01 DOYEN SHEET 42 INMAI- lbRIM EROSION AND SEDIMENT optima PLAN FINAL EROSION AND 5'EDwen COMMIX PLAN Erde1/4 IF WORK T IN PROGRESS Itsin3fivicECONPAtorcrectogwo ihressissrAnovame Cow. Sift f Sri -043420 wit rltlIT 1 r S. Vim *bib Zeit"as alp R rMiniciparriinatIPOWNISLOIlatiitit lirilitta0ZenCrOt.*Crt, Kra DMAIIIMWTHeDMIKAID fro to ar+ r r T r milt a� m n i` a iin etio€uorstriA rain i ma a��s�aaaaaaaul�ia�aaa��yaa�a�.'s'��1�4aaMI all �-o aa is 44 flak err roe Sie WRIGHT WATER ENGINEERS, INC 2490W.. 26TH AVE. SUITE 1+00A Mina CO 80211 003)4180.1 700 FAX(303MB0-1 024 PROPOSED ENNIS SUBSTATION EXPANSION EMITRIP3Fa E MISTING SANS SUBSTATION lab 4 t Sr 01.0 alai stmee 4 4 C if i ,I iI II ti 71 .II , 4* 8. C. tit i is s q se in S I - •Z *e heti - GRAM. 46yl Viget Illb I i I i 1i mason aaataiii leaalr l � � to f M 0 arumlamaraias— "&;iti eaQftiari+aRAvea sannuca per SIS liatIPAlliCI In we lee®/4!1 i if 15o1aTTt1,C'rUCfla. fup5o. Mic#RL Is i lokC M sKai � ADM P£ ttip 6eti Row 0 tab 41I PC r �` t�99fr:+� GILT IMO Pesiorna ito LEGEN D Orb was la ad S !.INN a •i are alit a a:a ea 03 a i O Ca Oasnlric LYstaol!c SHICIP OSO {OfiI ISS CHAIN Vs MIZE Flew DIRECTION Sat FIipCnt c:MTi t. Sm fir-potan LIMPS CIF '.JOPSINL1cTiON ±.M 1. b* .-!.4 ..a#. _tr CAECA WM DimPsTER Parrs Cd![ TE 464514 an S!fT LCG ROCK SOO* sit Mels SEDw£NT mum STXXxPLE OUTLET Pfeorflcnga INLET PEOTECTai CCNClaCTION iffloihat TOE ino Mii brays warrivwca P*0, otantta, imicravcat, taunt , iAa UCwilaTiJiCiAPaM IXTPNrifik MI6 9 Era AiaWit Ctatc : iiweefr,„Painc. ale) pRomE rLaw- M4CiCvnN.ac'10.'Catte. Man! ENN1 TWi acutv EiNZAAPC UK. 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AND UNIFRM 41wruntE t2c1tlnei Kid mai EsTAmipfmaint A MIAOW {FAT LET MN OF fill annwlva>: LEtS, or eaullAli4at► Peil I IENT Ptti trCAL fi 0fien °'i na IICOUCnn i CHOW HAW 8®u empLoyED • VC0ETAINS eChEaAtia: DEC( Oran t rrAPFLY TO OWED /1flEM GPIAVIa. CItJlLDevall os One HARD autr ces U E X46. sEEAni fca GE SS Warr FOR SEEDJiaJC svec MIMS FM i EW canny RE38 t 5lent YIrgD caunY COMMA *ICA1L* iE RPAfY1® C manic c i10it" U CWILIZATION T* MN= BC55334. SK0 D REYiw viF'oialno#e mamma ON De Mae MGM* CF 'me va.D GaEre Nat TM: - _--F Imaame Fal al} llfa'MIX ARE AAPEICASL TGl MiHDmow #S_J9 O3uwrirptsatt now cam tan IM rem, MICC w RSa r# WW1*i nomCd 11r oita P'. L tt1.a r Ws. 1► NORTH tale +GCSUdRAT}0 8.1 are crtL Urannietnci►► COMM CP oowa cq 1-800-922-1987 jahIANDIMIL CAMwrsma , OOS.flan%MICIAItTE i:i, ere gangly tl Fi Vet s a.• PIAKCISSIncrOaW•alikir FOXOCAIX) einSCOf MOSAIKIN ws AS btu 11-O43420 ANAL MOWN AND SEDIMENT CONTROL PLAN !PUP id 1 DETENTION BASIN STAGE -STORAGE TABLE BUILDER UD-Detention, Version 3.07 (February 2017) Project: Basle ID: ZONE 2 -ZONE 1 OLU' E VLU LEI ■ IFI %COY• r 1 PSRk a:1ENT- P_i 't { _ Z -ASE I AND.:` IC11-YI'.I [:H11 Example Zone Configuration (Retention Rand) Required Volume Calculation Selected GIMP T\ire = Watershed Area = Watershed Length = Watershed Slope = Watershed I•npe.Motsness = Percentage Hydrologic. Soil Grottp A = Percentage Hydrologic Soil Group B = Peroertage Hydrologic Soil Groups CO = Desired WOO./ Drain lint = FDA '8'7 '.742 0.0'3 8-43% '00.0% 0.0`'•i 0-0% 40-0 Location for ' -hr Rainfall Depths = User hpu War pualityCapture Volune (t^WOCV) Ewes Urban Ru'tff'Volt/no (CURV) 2 ;r Rureff Velum: (P1 = 0.86 in-) _ 5air Ruroff Volume (P' = `.' 4 In.) = '0-,r Runoff Volunt (P' = ' .4' in.) = 25-yr Runoff Voluire pi ft in.)_ 50-r Ruroif Volunt IPt te2.24In.)_ `00-yr Runoff Volum (P' = 2.67 iii) = 500-yr Ruroff Volunt {P ^ = 3.85 in.) _ Appronrrete 2-yr DetcntionVolun-e = Appro prate 5-w Detention Volunt = Approrirr ate ' 0-yr Detention Volunt = Approrimate 25-yr DetentionV+olunt = Approximate 50-yr DetentionVolunt = Approrin•ate ' 00-yr Detention Volunt = Stage -Storage Calculation 7) -Ire. ' Volune (WOO V) = Zorn: 2 Volune (LURJ -Zion: `)_ 7ore 3 Volume ("00 -year - Zots ' & 2) = Total Detertion Basin Volunt = hitial Sucharge Volunt OS V) = htial Surcharge Depth (BD) = Total Available Detertion Depth (Hr.r„) = Depth of Trickle Chanrel tHle) = Slope of Trickle. Charnel (Sic) Slopes of Main Basin Sides (s„,„)= Basin Length -to -Width Ratio (Rip,...) = hitial Surcharge Area (AlsV) = Surcharge Volune Length (L,Sv) = Suthargo Volunt Width (Kw) = Depth of Basin Floor tHFLccR} •_ Length of Basin Floor fl-FLceR} Width of Basin Floor 014/FLcCR) Area of Basin Floor (AFLccR) Volune of Basin Floor (VFLCUR).= Depth of Main Basin (-1 ) Length of Main Basin (Lr,ulri) = Width of Main Basin (Wr.a.1) = Arta of Main Basin (Aruirl) = Volutrt of Main Basin (Vruiri) = CaleLJated Total Basin Volurrb tVrnI) = 0-088 0.`07 0-050 0.072 0-`02 0.`77 0-370 0-000 2-056 0-046 0-067 0-004 0-' 48 0.223 0A07 0.088 0.020 0300 0A07 user user user user user user user user user user user user user user user user user user user user user acres ft ft'tt poreert pervert pervert pervert Iturs acre-feet acre-feet acre-feet acre-feet acre-feet acme -feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet acre-feet fr•3 ft it ft nit H_V fr"2 ft It It ft ft ft''2 ft.. ft ft ft ft`2 ft"3 acre-feet Optional User O'Aaide -hr Precipitation irches inhes inthes irites in hes irthes irches 0S6 • '4 4' -85 2.24 2-67 3-85 Depth hcrnmert = 0.5 ft Stage - Storage Description Stage (it) Uptloral Ocerride Static 1?i; Length (ft) Width (ft) Area (Q•'2) Uptloral Ocerridc Area irP2: Area (acre) Volune (113) Volune (ac -R) Top of Mtcropcol -- 0.00 -- -- -- 2357 0-059 52.5 -- 050 -- -- -- 4.05' 0-093 `.652 0-038 53 -- '.00 -- -- -- 6A47 0-' 48 2.625 0-060 53-5 -- ' 50 -- -- -- 7A05 0-' 70 3.463 0-079 54 -- 2.00 -- -- -- 9.3' 7 0-2' 4 4/ 8' 0.096 54-5 -- 250 2' 0-257 ' 7.052 0-39' 55 -- 3.00 -- -- -- ' 3.095 0.30' 23.`28 0-53' 55-5 -- 350 -- -- -- ' 4.996 0-344 30.`5` 0-692 56 -- 4.00 -- -- -- '6.9'6 0-388 38.`20 0-875 56-4 -- 4-40 -- -- -- ' 8A64 0-424 45.205 ' -038 UD-Detention 4.07 09-25-'8. Basin • Of' 9.20' 8.9:06 AM DETENTION BASIN STAGE -STORAGE TABLE BUILDER UD-Detention, Version 3.07 (February 2017) 2I3 400 se a rs 2- d 15 300 t a 10 206 - to c 5 100 C 0 a 00 1.50 3.00 Stage (ft) Length — Width Area 4.50 6:00 ( (=t) (sfl.) a 140 0.330 1 ._ .2- 0 220 ai � 'ci 0.110 0.000 1.040 V v w 7 13 0.780 dj., 0.520 y' 0.2E0 0.000 0.00 1..50 3.00 Stage Area (kJ —Volume tt) 1.50 E.00 (acres) (ac LID-Demnnon v3.0709-25-19, Basin ' 0"0:'20.8, 0!06 A M Detention Basin Outlet Structure Design U D -Detention, Version 3.07 (February 2017) Project: Basin ID: 100-YR VOLUME eunv wccv Tom... ZONE 3 p -ZONE 2 .-7fNF Y PERMANENT-- ' POO L J ZONE 1 AND 2 ORIFICES �-10o-vEr*R ORIFICE Example Zone Configuration (Retention Pond) User Input: Orifice at Underdrain Outlet (typically used to drain WQCV in a Filtration BM P) Underdrain Orifice Invert Depth = Underdrain Orifice Diameter = N/A N/A Zone 1 (WQCV) Zone 2 (EURV) tone 3 (100 -yea r) Stage (ft) Zone Volume (ac -ft) Outlet Type 0.93 0.088 Orifice Plate 1.07 0.020 Not Utilized 2.57 0.300 Weir&Pipe (Rect.) ft (distance below the filtration media surface) inches 0.407 Total Cakulated Parameters for Underdrain Underdrain Orifice Area .--- Underdrain Orifice Centroid = N/A N/A ft` feet User Input: Orifice Plate with one or more orifices or Elliptical Slot Weir (typically used to drain WQCV and/or EURV in a sedimentation BMP) Invert of Lowest Orifice = Depth at top of Zone using Orifice Plate = Orifice Plate: Orifice Vertical Spacing = Orifice Plate: Orifice Area per Row = 0.00 1.07 N/A 1.23 ft (relative to basin bottom at Stage = Oft) ft (relative to basin bottom at Stage = Oft) inches sq. inches (diameter= 1-1/4 inches) User Input: Stage and Total Area of Each Orifice Row (numbered from lowest to highest) Stage of Orifice Centroid (ft) Orifice Area (sq. inches) Stage of Orifice Centroid (ft) Orifice Area (sq. inches) Calculated Parameters for Plate WO Orifice Area per Row = Elliptical Half -Width = Elliptical Slot Centroid = Elliptical Slot Area = 8.542E-03 N/A N/A N/A ft - feet feet ft2 Row 1 (required) Row 2 (optional) Row 3 (optional) Row 4 (optional) Row 5 (optional) Row 6 (optional) Row 7 (optional) Row 8 (optional) 0.00 1.23 Row 9 (optional) Row 10 (optional) Row 11 (optional) Row 12 (optional) Row 13 (optional) Row 14 (optional) Row 15 (optional) Row 16 (optional) User Input: Vertical Orifice (Circular or Rectangular) Invert of Vertical Orifice = Depth at top of Zone using Vertical Orifice = Vertical Orifice Diameter = Not Selected Not Selected N/A N/A N/A N/A N/A N/A ft (relative to basin bottom at Stage = 0 ft) ft (relative to basin bottom at Stage = 0 ft) inches Calculated Parameters for Vertical Orifice Vertical Orifice Area = Vertical Orifice Centroid = Not Selected Not Selected N/A N/A N/A N/A ft2 feet User Input Overflow Weir (Dropbox) and Grate (Flat or Sloped) Overflow Weir Front Edge Height, Ho = Overflow Weir Front Edge Length = Overflow Weir Slope = Horiz, Length of Weir Sides = Overflow Grate Open Area % = Debris Clogging % = Zone 3 Weir Not Selected 1.07 N/A 4.00 N/A 0.00 N/A 4.00 N/A 75% N/A 50% N/A ft (relative to basin bottom at Stage= t3 ft) feet H :V (enter zero for flat grate) feet %, grate open area/total area 10 User Input: Outlet Pipe w/ Flow Restriction Plate (Circular Orifice, Restrictor Plate, or Rectangular Orifice) Depth to Invert of Outlet Pipe = Rectangular Orifice Width = Rectangular Orifice Height = Zone 3 Rectangular Not Selected 0.00 N/A 6.00 N/A 6.00 User input Emergency Spillway (Rectangular or Trapezoidal) Spillway Invert Stage= Spillway Crest Length = Spillway End Slopes = Freeboard above Max Water Surface = 3.00 20.00 3.00 1.00 ft (distance below basin bottom at Stage =Oft) inches inches ft (relative to basin bottom at Stage = 0 ft) feet H :V feet Calculated Parameters for Overflow Weir Height of Grate Upper Edge, H_ = Over Flow Weir Slope Length = Grate Open Area / 100-yr Orifice Area = Overflow Grate Open Area w/o Debris = Overflow Grate Open Area w/ Debris = Zone 3 Weir Not Selected 1.07 N/A 4.00 N/A 48.00 N/A 12.00 N/A 6.00 N/A feet feet should be> 4 ft2 ft2 Calculated Parameters for Outlet Pipe w/ Flow Restriction Plate Outlet Orifice Area = Outlet Orifice Centroid = Half -Central Angle of Restrictor Plate on Pipe = Zone 3 Rectangular Not Selected 0,25 N/A 0.25 N/A N/A N/A Calculated Parameters for Spillway Spillway Design Flow Depth= 0.29 feet Stage at Top of Freeboard = 4,29 feet Basin Area at Top of Freeboard = 0.41 acres ft2 feet radians Routed Hydrograph Results Design Storm Return Period = One -Hour Rainfall Depth (in) _ Calculated Runoff Volume (acre -ft) = OPTIONAL Override Runoff Volume (acre -ft) _ Inflow Hydrograph Volume (acre -ft) _ Predevelopment Unit Peak Flow. q (cfs/acre) _ Predevelopment Peak O (oft) _ Peak Inflow (oft) _ Peak Outflow Q (oft) _ Ratio Peak Outflow to Predevelopment Q = Structure Controlling Flow = Max Velocity through Grate 1 (fps) _ Max Velocity through Grate 2 (fps) _ Time to Drain 97% of Inflow Volume (hours) = Time to Drain 99% of Inflow Volume (hours) _ Maximum Ponding Depth (ft) = Area at Maximum Ponding Depth (acres) = Maximum Volume Stored (acre -ft) = WQCV EURV 2 Year 5 Year 10 Year 25 Year 50 Year 100 Year 500 Year 0.53 1.07 0.86 1.14 1.41 1.85 2.24 2.67 3.85 0.088 0.107 0.050 0.072 0.102 0.177 0.370 0.800 2.056 0.087 0.107 0.050 0.072 0.101 0,177 0.370 0.800 2.058 0.00 0.00 0.00 0.00 0.01 0.02 0.14 0.35 0.95 0.0 0.0 0.0 0.0 0.1 0.3 2.5 6.4 17.3 1.1 1,4 0.7 0.9 1.3 2.3 4.7 10.2 25.8 0.0 0.0 0.0 0.0 0.0 1.0 1.5 2.4 21.3 N/A N/A N/A 0.7 0.3 3.4 0.6 0.4 1.2 Plate Plate Plate Plate Plate Overflow Grate 1 Outlet Plate 1 Spillway Spillway N/A N/A N/A N/A N/A 0.1 0.1 0.2 0,2 N/A N/A N/A N/A N/A N/A N/A N/A N/A 40 45 29 36 44 46 41 36 21 43 I 48 32 39 47 50 48 46 38 0.87 1.01 0.56 0.76 0,97 1.16 1.76 3.04 3.45 0.13 0.15 0.10 0.12 0.14 0.15 0.19 0.30 0.34 0.080 0.098 0.044 0.065 0.092 0.121 0.223 0.540 0.675 Detention Basin Outlet Structure Design Up -Detention, Version 3.07 (February 2017) 30 25 20 10 5 0 500�Y�R IN p� • S0G ROUT 100YR IN a a 100YR OUT 50YRIN a e OUT25YRIN 4 T ", --a 25YROUT 1t1YR IN - 10YR OUT • • f+ f - f -A- • 4 4-- • SYR IN• SYR OUT1 2YR IN T 4 • • •T s s 2YR OUT Et fVIN • f- •. • f+CV . EtJItVO1 A IN - • i• ■ C b • • f i • T•■ s a• T • • y••••• -a...- OS S S- sae *did Y WO glin • 0.1 r-2.5 r a W a 2 2 a O O- 1.5 = 100YR =S0YR 2SYR ��- 10YR SYR. -2YR --CUED/ ►WC1CV 1 TIME [hr] X-axis Left V -Axis Right V -Axis DRAIN TIME [hr] O User Area [fi "2] Interpolated Area [ftA2] ---6-- Summary Area [ft' 2] Volume [it^3] ..*-.. Summary Volume [fV 3] Outflow ids] --a•• Summary Outflow [] S -A -V -D Chart Axis Override minimum bound maximum bound 250 PONDING DEPTH [ft] 10 200,00 80.00 O 60 ,�/� VItt .00 It O 0.00 5.00 Detention Basin Outlet Structure Design Time Interval 6.53 min Hydrograph Constant 0.766 Outflow Hydrograph Workbook Filename: Storm Inflow Hydrographs UD-Detention, Version 3.07 (February 2017) The user can override the calculated inflow hydrographs from this workbook with inflow hydrographs developed in a separate program. SOURCE WORKBOOK WORKBOOK WORKBOOK WORKBOOK WORKBOOK WORKBOOK WORKBOOK WORKBOOK WORKBOOK TIME WQCV [cfs] EURV [cfs] 2 Year [cfs] 5 Year [cfs] 10 Year [cfs] 25 Year [cfs] 50 Year [cfs] 100 Year [cfs] 500 Year [cfs] 0:00:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0:06:32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0:13:04 0.00 0,00 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0:19:35 0.05 0,06 0.03 0.04 0.06 0,10 0.21 0.45 1.11 0:26:07 0.14 0.17 0.08 0.12 0.16 0.28 0.57 1.21 3.03 0:32:39 0.36 0.44 0.21 0.30 0.41 0.71 1.46 3.10 7.78 0:39:11 0,98 1.20 0.57 0.82 1.14 1,96 4.02 8.53 21.35 0:45:43 1.14 1.40 0.65 0.95 1.32 2.29 4.73 10.15 25.80 0:52:14 1,08 1.32 0.62 0.90 1.26 2.17 4.51 9.69 24.71 0:58:46 0.98 1,20 0,56 0.81 1.14 1.98 4.10 8.83 22.49 1:05:18 0.87 1.06 0.49 0.72 1.01 1.75 3.65 7.89 20.20 1:11:50 0.74 0.91 0.42 0.61 0.86 1.50 3.14 6.82 17.57 1:18:22 0.65 0.79 0.37 0.53 0.75 1.31 2.74 5.94 15.27 1:24:53 0.58 0.72 0.33 0.48 0.68 1.18 2.42 5.38 13.84 1:31:25 0.47 0.58 0.26 0.39 0.55 0,96 2.04 4.45 11.54 1:37:57 0.38 0.47 0.21 0.31 0.44 0.78 1.66 3.64 9.52 1:44:29 0.28 0.35 0.15 0.23 0.33 0,59 1.26 2.81 7.47 1:51:01 0.20 0.25 0.11 0.16 0.23 0.43 0.93 2.10 5.69 1:57:32 0.15 0.18 0.08 0.12 0.17 0.31 0.68 1.52 4.19 2:04:04 0.12 0.15 0.07 0.10 0.14 0.25 0.53 1.17 3.18 2:10:36 0.10 0.12 0.05 0.08 0.11 0,20 0.44 0.97 2.59 2:17:08 0,08 0.10 0.05 0.07 0.10 0.17 0.37 0.82 2.18 2:23:40 0.07 0.09 0.04 0.06 0.09 0.15 0.33 0.72 1.91 2:30:11 0.07 0.08 0.04 0.05 0.08 0.14 0.29 0.65 1.71 2:36:43 0.06 0.08 0.04 0.05 0.07 0.13 0.27 0.60 1.57 2:43:15 0.05 0,06 0.03 0.04 0.05 0.09 0.20 0.44 1.16 2:49:47 0.03 0,04 0.02 0.03 0.04 0.07 0.15 0.32 0.84 2:56:19 0.02 0,03 0.01 0.02 0.03 0.05 0.11 0.24 0.62 3:02:50 0.02 0.02 0.01 0.01 0.02 0.04 0.08 0.17 0.46 3:09:22 0.01 0.02 0.01 0.01 0.01 0.03 0.06 0.12 0.33 3:15:54 0,01 0.01 0.00 0.01 0.01 0.02 0.04 0.09 0.24 3:22:26 0.01 0.01 0.00 0.00 0.01 0.01 0.03 0.06 0.17 3:28:58 0.00 0.00 0.00 0.00 0.00 0.01 0,02 0.04 0.12 3:35:29 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 3:42:01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 3:48:33 0,00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.02 3:55:05 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.00 4:01:37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:08:08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:14:40 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:21:12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:27:44 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:34:16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:40:47 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.00 4:47:19 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4:53:51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:00:23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:06:55 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:13:26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:19:58 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:26:30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:33:02 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:39:34 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:46:05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:52:37 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5:59:09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:05:41 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:12:13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:18:44 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:25:16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:31:48 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:38:20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:44:52 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:51:23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6:57:55 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:04:27 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:10:59 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:17:31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:24:02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:30:34 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:37:06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:43:38 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7:50:10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Detention Basin Outlet Structure Design U D -Detention+ Version 3.07 (February 2017) Summary Stage -Area -Volume -Discharge Relationships The user can create a summary S -A -V -D by entering the desired stage increments and the remainder of the table will populate automatically. The user should graphically compare the summary S -A -V -D table to the full S -A -V -D table in the chart to confirm it captures all key transition points. Stage - Storage Description Stage [ft] Area [ft"2] Area [acres] Volume (it"3] Volume (ac ft] Total outflow [cfs] For best results, include the stages of all grade slope changes (e.g. ISV and Floor) from the S -A -V table on Sheet 'Basin'. Also include the inverts of all outlets (e.g. vertical orifice, overflow grate, and spillway, where applicable). CONSTRUCTION STORMWATER MANAGEMENT PLAN (SWMP) Ennis Substation Expansion Project County Road 59 Weld County, Colorado 80643 Prepared for XceIEnergyM Public Service Company of Colorado, a Colorado Corporation 1800 Larimer Street, Ste 400 Denver, CO 80202 Prepared by: Wright Water Engineers, Inc. 2490 W. 26t" Avenue, Suite 100A Denver, CO 80211 October 2018 091-034.5240 Table of Contents Tab 1 Introduction Site Description a) Nature of the construction activity at the site b) The proposed sequence for major activities c) Disturbed Area d) Existing Soils Data e) Existing Vegetation f) Potential Pollutant Sources g) Allowable Non-Stormwater Discharges and Construction Dewatering h) Receiving waters Tab 2 BMP Site Maps Tab 3 Contact Information and SWMP Administrator Tab 4 Potential Pollutant Sources Tab 5 BMPs for Stormwater Pollution Prevention Tab 6 BMP Details/Specifications Tab 7 Phased BMP Implementation Tab 8 Materials Handling, Spill Prevention, Waste Management and Disposal Tab 9 Final Stabilization and Long -Term Stormwater Management Tab 10 Inspection Schedule Inspection Requirements BMP Maintenance Blank Inspection Form Tab 11 SWMP Requirements Non -Compliance Notification Tab 12 Pre -Construction Photolog Tab 13 Environmental Permits Tab 14 Inspection Reports Tab 15 Soil Report Tab 16 Floodplain mapping Ennis Substation Expansion Project TAB 1 Introduction Performance Standards Site Description Ennis Substation Expansion Project INTRODUCTION This is a Stormwater Management Plan (SWMP) for the Ennis Substation Expansion (Project) being conducted by Public Service Company of Colorado (PSCo)1, a Colorado corporation and an Xcel Energy Company. This document has been developed as defined in the Colorado Discharge Permit System (CDPS) General Permit for Stormwater Discharges Associated with Construction Activity (Permit No. COR-030000, effective July 1, 2007) authorizing stormwater discharges from construction activities that result in a total land disturbance of one acre or greater or if a project is less than an acre but part of a larger common plan of development. This document was also developed to meet the Weld County Grading Permit requirements. This SWMP was prepared in accordance with good engineering, hydrologic and pollution control practices. Changes or additions may be required to address changes in conditions at the project. If such changes are made, this SWMP will be updated accordingly The purpose of this SWMP is to: • Identify all potential sources of pollution which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity from the project; • Describe the practices to be used to reduce the pollutants in stormwater discharges associated with construction activity at the project; • Ensure the practices are selected and described in accordance with good engineering practices, including the installation, implementation and maintenance requirements; and • Be implemented as written and updated, from commencement of construction activity until final stabilization is complete, as a condition of the permit. 1. Site Description (I.C.1) A. Nature of the construction activity at the site (Permit Section (§) I.C.1.a): The proposed Ennis Substation Expansion Project is located at the existing PSCo Ennis Substation site in Weld County, Colorado. The existing substation and proposed expansion project area is located northwest of County Road 59. This SWMP covers construction activities associated with the expansion of the Ennis Substation including clearing and grubbing, grading, excavations, and installation of associated features. The project also includes drainage improvements which consist of :he installation of a new detention pond and drainage swales. The proposed detention pond will be the first phase of the expansion project and will initially act as a sediment basin to support the substation expansion and construction activities. A staging area will be utilized for the Project and will be located within the limits of construction. The proposed location of the staging area is illustrated on the BMP Site Plans but may be modified in the field by redlining if the selected contractor has a preferred location. A construction trailer, portable toilet, construction parking, dumpster, material storage and concrete washout are anticipated to necessary and will be located within the designated staging area. The locations of all of these features may be modified in the field and redlined on the BMP Site Maps. Access to the project will be off existing PSCo easement access road via County Road 59. Vehicle tracking control measures will be installed at the Project entrance off the existing PSCo access road to provide adequate vehicle tracking control for construction related traffic. For the purposes of the SWMP, PSCo" and "Xce " are used interchangeably to identify the permittee. Ennis Substation Expansion Project Sediment control measures will be installed downgradient of all Project areas where there is a potential for stormwater runoff to be conveyed from a disturbed area as sheet flow, and all other areas where there is a potential for pollutants to runoff from the Project Rock socks or equivalent will be used as a perimeter sediment control measure However, sediment control logs or other proprietary products, silt fence, or Big Reds® may be used in place of rock socks where appropriate Temporary outlet protections, such as rip -rap, will be installed at the outfall of the proposed detention pond The proposed detention pond will be used as a sediment basin until the site has been stabilized Upon completion of construction, permanent outlet protections will be installed in place of the temporary outlet protections Final stabilization efforts within the substation electrical grounding grid will consist of applying final surfacing of crushed rock Upon the completion of earth disturbing activities, all disturbed areas outside of the electrical grounding grid, including portions of the sediment basin and drainage swales, will be restored with seed and mulch (see details in the BMP Site Maps) All slopes 3 1 or greater will be seeded and blanketed with erosion control blankets Temporary control measures that are no longer needed will be removed after final stabilization measures are implemented The latitude and longitude of the middle of the project is approximately 40°10'52 93"N and 104°30'30 35"W, respectively B The proposed sequence for maior activities ICI 1 b) Estimated Project/Construction Start Date Estimated End of Construction Date Estimated Final Stabilization Date The project will generally adhere to the following sequence for major activities October 2018 April 2018 October 2019 Pre -construction — The project went through initial design by PSCo and their design consultants, Power Engineers Prior to the development of this SWMP, a site visit was made to determine site -specific control measures, pre -construction vegetative cover, existing drainages/outfalls, and sensitive features These features were then incorporated into the site -specific Erosion and Sediment Control Plan Site perimeter sediment controls are required prior to initial disturbance Potholing may occur prior to construction Perimeter controls will be used if potholing occurs and slurry will be vacuumed and disposed of properly Construction - Construction activities are expected to follow the sequence outlined below e Pothole for utilities, as necessary This may be done prior to and during construction depending on design and proximity to other utilities 6 Establish access into the site and install perimeter controls, inlet protections that aren't already installed, and tracking control measures O Establish the staging area with appropriate control measures, facilities, and tracking controls Parking, material storage, and staging of equipment will occur in the staging area shown on the BMP Site Maps The portable toilets, dumpsters (if needed) and will be located within the staging area and will be redlined on the drawings as their locations are determined Portable toilets will be staked down or anchored to trailers to prevent tipping The staging area location may be modified in the field and redlined on the BMP Site Maps e Phase control measures with construction Install additional control measures prior to starting upgradient earth work o Perform excavation and grading for the drainage improvements portion of the project Ennis Substation Expansion Project • Construct the proposed sediment basin and drainage swales. • Perform site grading within the area where expansion will be located. • Construct new foundations, limited underground conduit installation, and associated features. • Restore disturbed areas by spreading crushed rock, seeding and mulching and/or installing erosion control blankets and riprap where called out for in the design plans. • Convert sediment basin outfall to final detention pond with outfall configuration. • Remove temporary control measures that are no longer required. • Close all appropriate permits once final stabilization has been achieved. Post -construction - Final stabilization will primarily consist of implementing seed and mulch and/or applying erosion control blankets on slopes 3:1 or greater. Final stabilization is expected to be achieved within one or two growing seasons. The BMP Site Maps will be updated to reflect field conditions as needec. After construction has been completed and final stabilization is achieved. all temporary non -biodegradable BMPs will be removed and all appropriate forms will be completed and sent to the applicable regulatory agencies. C. Disturbed area (§I.C.1.c): The total project size is approximately 4.7 acres. The estimated soil disturbance is anticipated to be approximately 4.7 acres. D. Existing Soil Data (§I.C.1.d): There is one main soil type in this area are described below. The detailed soil report is in Tab 15. Map Unit Symbol Hydrologic Group Kf Soil Name 70 Valent percent sand, slopes 3 to 9 _ A 0.02 The soil in this area tend to be well drained with relatively low erosion potential. BMPs will be used to minimize erosion and sediment transport during construction of this project. E. Existing Vegetation (§I.C.1.e): Existing vegetation at the site is predominately composed of native grasses, weeds and various shrubs with a vegetative cover of approximately 60-70%. Pre -construction photos of the project area are in Tab 12. F. Potential Pollution Sources (§I.C.1.f): The location and description of all potential pollution sources, including ground surface disturbing activities, are described in Tab 4 of this SWMP. Ennis Substation Expansion Project G Allowable Non-stormwater Discharges ((el C 1 g),($I D 3), and (el C 3 c 8) Except as provided in the paragraphs below, all discharges that occur during the life of this project shall be composed entirely of stormwater associated with construction activity The Colorado Discharge Permit System (CDPS) General Permit allows the following non- stormwater discharges in combination with stormwater discharges associated with construction sites, provided that the non-stormwater component of the discharge is identified in the SWMP a Discharges from fire -fighting activities, ® Natural springs, o Landscape irrigation return flow, © Discharges to the ground of concrete washout water from washing of tools and concrete mixer chutes are allowed under this SWMP, provided that the washout water is confined in a concrete washout area and does not leave the site as surface runoff or to surface waters, and does not enter groundwater 6 Certain construction dewatenng discharges The WQCD's General Permit for Stormwater Discharges from Construction Activities allows for dewatenng of groundwater and stormwater to the ground surface to allow for infiltration on the site No groundwater from construction dewatenng will be discharged as surface runoff or to surface waters on the site It is not anticipated that dewatenng activities will be required during this project However, if dewatenng becomes necessary, groundwater and/or stormwater may be pumped from excavations or trenches to the ground surface on the site for infiltration or evaporation The location of pumping and deposition of the groundwater or stormwater will be marked on the site plan prior to the start of pumping activities If it becomes necessary Ito pump groundwater off site or into a waterway or storm sewer, then a construction dewatenng discharge permit must be obtained from the State prior to engaging such activities Discharges of material other than stormwater must be addressed in a separate Colorado Discharge Permit System (CDPS) permit issued for that discharge If there are any additional permits for this project a copy is retained in Tab 13 H Receiving Waters (&I C 1 h) 1 Outfall locations Location Size Type Receiving Waters See site map 18" HDPE Outlet of the proposed detention pond Box Elder Creek 1 Immediate and Ultimate Receiving Waters Name Box Elder Creek Distance to project see Tab 2 for detailed site -specific maps 2 Are the receiving waters on the 303 (d) list of impaired waters Yes ❑ No 3 Does the receiving water have an approved TMDL Yes ❑ No Ennis Substation Expansion Project Tab 2 Site Maps Ennis Substation Expansion Project PUBLIC SERVICE COMPANY OF COLORADO (PSCO) ENNIS SUBSTATION EXPANSION BMP SITE MAP COUNTY ROAD 59, WELD COUNTY, COLORADO GENERAL NOTES 1 CONSTRUCTION IS PRIMARILY TO EXPAND AN EXISTING SUBSTATION PAD, INSTALL ADDITIONAL ELECTRICAL FACILITIES AND CONDUIT. AND CONSTRUCT A PROPOSED DETENTION POND 2 EXISTING AND PROPOSED TOPOGRAPHY GRADING AND DESIGN. PROJECT LAYOUT AND DETENTION POND PROVIDED BY POWERS ENGINEERING 3 THE PROJECT AREA AND SOIL DISTURBANCE IS APPROXIMATELY 4 7 ACRES 4 ACCESS IS FROM AN EXISTING DIRT ROAD WITHIN AN EXISTING EASEMENT THIS ROAD WILL BE MONITORED FOR VEHICLE TRACKING OF SEDIMENT 5 STAGING AREAS MAY BE MODIFIED IN THE FIELD AND REDLINED ON THE BMP SITE MAPS INCLUDING ALL FEATURES WITHIN THE STAGING AREA 6 PARKING, PORTALETS. DUMPSTERS AND MATERIAL STORAGE WILL BE LOCATED IN STAGING AREA LOCATIONS MAY BE MODIFIED IN THE FIELD 7 BIG REDS• FOR OTHER PROPRIETARY PRODUCTS MAY BE USED IN PLACE OF ROCK SOCKS OR SEDIMENT CONTROL LOG 8 BMP MAINTENANCE NOTE ALL EROSION AND SEDIMENT CONTROL PRACTICES AND OTHER PROTECTIVE MEASURES IDENTIFIED IN THE SWMP MUST BE MAINTAINED IN EFFECTIVE OPERATING CONDITION PROPER SELECTION AND INSTALLATION OF BMPS AND IMPLEMENTATION OF COMPREHENSIVE INSPECTION AND MAINTENANCE PROCEDURES, IN ACCORDANCE WITH THE SWMP, SHOULD BE ADEQUATE TO MEET THIS CONDITION BMPS THAT ARE NOT ADEQUATELY MAINTAINED IN ACCORDANCE WITH GOOD ENGINEERING, HYDROLOGIC AND POLLUTION CONTROL PRACTICES. INCLUDING REMOVAL OF COLLECTED SEDIMENT OUTSIDE THE ACCEPTABLE TOLERANCES OF THE BMPS. ARE CONSIDERED TO BE NO LONGER OPERATING EFFECTIVELY AND MUST BE ADDRESSED 9 FINAL STABILIZATION WILL PRIMARILY CONSIST OF APPLYING FINAL SURFACING OF ROADBASE AND GRAVEL WITHIN THE SUBSTATION AND SEEDING AND MULCHING AND/OR APPLYING EROSION CONTROL BLANKETS ON SLOPES 3 1 OR GREATER OUTSIDE THE SUBSTATION CHAIN LINK FENCE 10 FINAL STABILIZATION IS REACHED WHEN ALL SOIL DISTURBING ACTIVITIES AT THE SITE HAVE BEEN COMPLETED. AND UNIFORM VEGETATIVE COVER HAS BEEN ESTABLISHED WITH A DENSITY OF AT LEAST 70% OF PRE -DISTURBANCE LEVELS OR EQUIVALENT PERMANENT PHYSICAL EROSION CONTROL REDUCTION METHODS HAVE BEEN EMPLOYED 11 VEGETATIVE COVERAGE DENSITY DOES NOT APPLY TO PAVED AREAS. GRAVEL. BUILDINGS, OR OTHER HARD SURFACES IMPERMEABLE AREAS 12 SEE APPENDIX OF SWMP REPORT FOR SEED MIX SPECIFICATIONS PER WELD COUNTY REQUIREMENTS WELD COUNTY CRITERIA SHOULD BE REVIEWED AND FOLLOWED FOR FINAL STABILIZATION 13 THE DESIGN ENGINEER SHOULD REVIEW INFORMATION AVAILABLE ON THE WEEDS SECTION OF THE WELD COUNTY PUBLIC WORKS WEBSITE FOR SEED MIXES THAT ARE APPLICABLE TO WELD COUNTY WELD COUNTY PUBLIC WORKS CAN ASSIST IN SELECTING A SUITABLE SEED MIX 14 RECEIVING WATERS BOX ELDER CREEK AND WELD COUNTY ms4 CALL COLORADO 81 1 oR CJLLL UTILITY NOTITICAJNIAI SIt'f n- CO1_3.1A(x) 1-800-922-1987 (AI 13.RUSINE SS LAYS IN AUVANCI RFFORF vOll fRO ORADF OII FXCAVATF Oft I HL MAI4KING OI UNUL NOI/OUNU MLMULR U I ILI I (LS PROJECT LOCATION County Road 30 PROJECT LOCATION Count) Road z: Keenesburq PROJECT LOCATION: SECT. 36, T3N, R64W OF THE 6TH. P.M. 0 2500 5000 SCALE IN FEET 1" 10.000' CONTACTS OWNER / DEVELOPER PUBLIC SERVICE COMPANY OF COLORADO 1800 LARIMER STREET, SUITE 600 DENVER. CO 80202 BMP ENGINEER: WRIGHT WATER ENGINEERS. INC 2490 W 26TH AVENUE, SUITE 100A DENVER, CO 80211 CIVIL ENGINEER POWERS ENGINEERS. INC 3900 SOUTH WADSWORTH BOULEVARD DENVER CO 80235 CONTACT PROJECT MANAGER HEATHER BRICKEY 303-571-7044 HEATHER C BRICKEY@XCELENERGY COM CONTACT ANDREW EARLES, PE MAGGIE LEWIS, EIT 303-480-1700 (OFFICE) MLEWIS@WRIGHTWATER COM CONTACT DALE MURPHY, PE PMP STUARTTORAASON PE 303-716-8962 DALE MURPHY@POVVERENG COM SHEET INDEX SHEET TITLE 01 02 03 COVER SHEET INITIAL -INTERIM EROSION AND SEDIMENT CONTROL PLAN FINAL EROSION AND SEDIMENT CONTROL PLAN DAFT WORK IN PROGRESS WRIGHT WATER ENGINEERS, INC 2490 W. 26TH AVE. SUITE 100A DENVER, CO 80211 (303)480-1700 FAX(303)480-1020 NO at DATE va. OESCRIPI [('. COWMEN i 5 DESIGN MRL I0/OS,- ' DETAIL LSA 10/ 05. CHECK JMK 110[05/ ' ci APPROVAL SCALE SHOWN COvER-ENN6up PUBLIC SERVICE COMPANY OF COLORADO (PSCO) ENNIS SUBSTATION EXPANSION COVER SHEET 091 -034.'420 KVISON WIT NO 1 I 06) 1 II ,1 11 ,I 11 ,I I 1 1 1 1 ►1 p tossers a a a a a us as alill0 0 %n nannamane ND ma a 4860 m 4 • M Vs a Fn. - 4855 O Samiawloam as o' R PROPOSED ENNIS SUBSTATION EXPANSION soli% tun orrOils i,y 00 I� *el EXISTING FENCE 4880 EXISTING ENNIS SUBSTATION 4865 EXISTING GRAVEL ENTRANCE (NOT ANTICIPATED TO BE USED FOR CONSTRUCTION. IF USED. VTC WILL BE ADDED) PROPOSED DETENTION POND WILL BE USED AS SEDIMENT BASIN DURING CONSTRUCTION. POND MUST BE CLEANED OUT AND RESTORED TO DESIGN GRADES BEFORE FINAL STABILIZATION. ter` i��e� i I Ea St + 44, lat / / 1$ 1s 1 roll • - PROPOSED 18' HOPE S PERMANENT RIPRAP OUTFALL FALL 485° .1 .,I 4)155 r :.FISIINt;UlkI kuAl: -NI RANGE go z? b LEGEND 1080 1080 linen•.. •••••••••• ... •••.••..•.••.••Y••..•..•• I'�•�•�•�•�•�•� V �•�•� • I_�_a a�a�r�_�:�_�a5r�_ a U O GENERAL NOTES EXISTING CONTOURS PROPOSED CONTOURS CHAIN LINK FENCE FLOW DIRECTION VEHICLE TRACKING CONTROL OR v -TRACKS• • LIMITS OF CONSTRUCTION LIMITS OF DISTURBANCE CHECK DAM DUMPSTER PORILETS CONCRETE WASH OUT SEDIMENT CONTROL LOG ROCK SOCKS STAGING AREA SEDIMENT BASIN STOCKPILE OUTLET PROTECTION INLET PROTECTION t CONSTRUCTION IS PRIMARILY TO EXPAND AN EXISTING SUBSTATION PAD. INSTALL ADDITIONAL ELECTRICAL FACILITIES AND CONDUIT, AND CONSTRUCT A PROPOSED DETENTION POND 2 EXISTING AND PROPOSED TOPOGRAPHY GRADING AND DESIGN PROJECT LAYOUT AND DETENTION POND PROVIDED BY POWERS ENGINEERING 3 THE PROJECT AREA AND SOIL DISTURBANCE IS APPROXIMATELY 4 7 ACRES 4 ACCESS IS FROM AN EXISTING DIRT ROAD WITHIN AN EXISTING EASEMENT THIS ROAD WILL BE MONITORED FOR VEHICLE TRACKING OF SEDIMENT 5 STAGING AREAS MAY BE MODIFIED IN THE FIELD AND REDLINED ON THE BMP SITE MAPS INCLUDING ALL FEATURES WI THIN THE STAGING AREA 6 PARKING, PORTALETS DUMPSTERS AND MATERIAL STORAGE WILL BE LOCATED IN STAGING AREA LOCATIONS MAY BE MODIFIED IN THE FIELD 7 BIG REDS. OR OTHER PROPRIETARY PRODUCTS MAY BE USED IN PLACE OF ROCK SOCKS OR SEDIMENT CONTROL LOG 8 BMP MAINTENANCE NOTE ALL EROSION AND SEDIMENT CONTROL PRACTICES AND OTHER PROTECTIVE MEASURES IDENTIFIED IN THE SWMP MUST BE MAINTAINED IN EFFECTIVE OPERATING CONDITION PROPER SELECTION AND INSTALLATION OF @MPS AND IMPLEMENTATION OF COMPREHENSIVE INSPECTION AND MAINTENANCE PROCEDURES_ IN ACCORDANCE WITH THE SWMP SHOULD BE ADEQUATE TO MEET THIS CONDITION BMPS THAT ARE NOT ADEQUATELY MAINTAINED IN ACCORDANCE WITH GOOD ENGINEERING HYDROLOGIC AND POLLUTION CONTROL PRACTICES. INCLUDING REMOVAL OF COLLECTED SEDIMENT OUTSIDE THE ACCEPTABLE TOLERANCES OF THE BMPS. ARE CONSIDERED TO BE NO LONGER OPERATING EFFECTIVELY AND MUST BE ADDRESSED 9 RECEIVING WATERS BOX ELDER CREEK AND WELD COUNTY MS4 1► NORTH SD CALL COLORADO 811 OR CALL UTILITY NOTIFICATION CtNItN OF COLONAUO 1-800-922-1987 CAI I 18USINESS (JAYS IN ADVANCE ,WFORF YOU DIG UNACW OR FXCAVAIF 1014 1141 WANKING O1 UNULHGROUNU ML MUL I4 U I kJ I IL S WRIGHT WATER ENGINEERS, INC. 2490 W. 26TH AVE. SUITE 100A DENVER, CO 80211 (303)480-1700 FAX(303)480-1020 DALE OE SC RIPON DAIS DESIGN OE TAIL LSA 10/05/18 10/05/ 1a PUBLC SERVICE CCM°ANY Of COLOMBO (PSCCV ENNIS SUBSTATION EAPANSIION CHECK JMK '0105/18 APPROVAL SCALE EC -PLAN -0016...9 INITIAL -INTERIM EROSION AND SEDIMENT CONTROL PLAN Joe No 091-034.5420 Pt •IL 2 T\?ROJ£CT LIES\09\09'-034\097-034 S42C\CAD-CIS \ CAD \0.._DMCS\EC--PIAN- UNNS • • I • 1 1 1 1 1 I 1 1 r 1 1 1/ 1/ 1I- 1 1 I • • • • • • I • es le MI ION a ein illitirsie es is mg wi ME lin ana a la SCI. IS • _-�----- • e . . . . . . . • . .• ••••••••••••••••••••••••• • • • • • • . . • • • . . . . • • . . •�.^�` . • • • • • • • • • • • • • • • e_. • • • PROPOSED DETENTION POND WILL BE USED AS SEDIMENT BASIN DURING CONSTRUCTION. POND MUST BE CLEANED OUT AND RESTORED TO DESIGN BEFORE FINAL STABILIZATION. sde i . •—' s— • • . p a a • .. • • • • • • • • • • • • • • • . • • • • • • • • • • • • •.-• . . . . . . • • • • • • • • . • • • • • • • • • • • . • . • }1 - 4 . • • • • • �• • . . • • . . . . . _ . . . . . • . .• . • • • • • . Hd•••••,..„2„...... ! . _ -. . • • • • .• • • • • • . . • . • • . . . . . . . • • . . • . . • . . . • " . . • • • • .; • • • • • • . . . . . . . . • • . . . • • ' es ••••••,',••••••• . . '.• . .. . . - .•• • . • . - • . . . . - . • • • ' . • • • - • • • • . P • • • • • • • • -•• . • • • • ••. ••. • . • . • •• • • • • • PROPOSED FENCE • ♦ • • • • • • • • • • - • • • • • • • • • •" • • • . • • • • • • . • • • • • • • • • • • . • - - - ' - • • • • • • • • • • ♦ • • • • • • • • • • • ♦ • • • • •••••••• all ow • • • • • - - - • • 4J• • • • • • • • • . • a5 • a PROPOSED ENNIS SUBSTATION EXPANSION GRAVEL • • • i�. is a ow a um- -sae F EXISTING FENCE 4880 EXISTING ENNIS SUBSTATION • • • • • • • . . e • • e •• • • • • • • • • I• 5 • .r�`t1! 1, • • • • • • • • • • • I • • • • • ' • • • • • r • • • • • ) •' . • . • • • • 1♦ .•••••••••• • • • • • • • ♦ • • •\ • •• • • • • • • • b • ♦ ... • •• • PROPOSED 18" HDPE - PERMANENT RIPRAP OUTFALL • • I ' • • • • . • • • • • • - • • • • • • • . • • .• h• •r•-• •� D . • - • • .-. I• • • - b. . .•. - • . • • • • • • . "•• • L e• " •I• 00 • • • • - . . . • . . • . • • " .• r,,, • • • . . • • . • . . • • • • • ...4u. • • • . . . • . . . . . • -. • .• • •' • • • • . . . - . - • • . • • . • . _• •• • • • - • . , • • • • . • . . • . . • . -• - • • 1 • • • • • • • • • •. .. . f •i L. • P . • •-‘,K41 .. '• • •' • . ,. • :. • • • •\• i • ,• YI• { t • ' •\ . • ••• • • • ..ti ".8 11 . I , /4 /, 4 /I I, /, • 4 Sig 'seen NM a MI IIME 4065 EXISTING GRAVEL ENTRANCE (NOT 4:411 ANTICIPATED TO BE USED FOR CONSTRUCTION. IF USED. VTC WILL BE ADDED) , II smell Eli MI •. • 5a. ea;• • St GRAVEL ' • - ,, ENTRANCE • • • . • • • • . • • . . • • . . • . . • • • • - - • - • • • . • . ♦ • - • • • • • •• - ' .• • • . • • • • • • • • • • • • . ♦ •• ..• • • • • ♦ • ••• • . • ,• • •• .•.• • ��. • C ,l" U �, /1 / 1 /1 1 III 1 /I /1 /I ,♦�, •W • ats65 .1860 — EXISTING DIRT ROAD ENTRANCE 4860 Abbau 4,9 GENERAL NOTES LEGEND 1080 1080 1 M — — — n a LI EXISTING CONTOURS PROPOSED CONTOURS CHAIN LINK FENCE FLOW DIRECTION INLET PROTECTION VEHICLE TRACKING CONTROL OR V - TRACKS•• LIMITS OF CONSTRUCTION LIMITS OF DISTURBANCE CHECK DAM DUMPSTER PORTLETS CONCRETE WASH OUT SEDIMENT CONTROL LOG ROCK SOCKS STAGING AREA SEDIMENT BASIN STOCKPILE INLET PROTECTION OUTLET PROTECTION PERMANENT SEED GRAVEL EROSION CONTROL MATTING CONSTRUCTION IS PRIMARILY TO EXPAND AN EXISTING SUBSTATION PAD, INSTALL ADDITIONAL ELECTRICAL FACILITIES AND CONDUIT AND CONSTRUCT A PROPOSED DETENTION POND 2 EXISTING AND PROPOSED TOPOGRAPHY GRADING AND DESIGN PROJECT LAYOUT AND DETENTION POND PROVIDED BY POWERS ENGINEERING 3 THE PROJECT AREA AND SOIL DISTURBANCE IS APPROXIMATELY 4 7 ACRES 4 FINAL STABILIZATION WILL PRIMARILY CONSIST OF APPLYING FINAL SURFACING OF ROADBASE AND GRAVEL WITHIN THE SUBSTATION AND SEEDING AND MULCHING AND OR APPLYING EROSION CONTROL BLANKETS ON SLOPES 3 1 OR GREATER OUTSIDE THE SUBSTATION CHAIN LINK FENCE 5 FINAL STABILIZATION IS REACHED WHEN ALL SOIL DISTURBING ACTIVITIES AT THE SITE HAVE BEEN COMPLETED, AND UNIFORM VEGETATIVE COVER HAS BEEN ESTABLISHED WITH A DENSITY OF AT LEAST 70% OF PRE -DISTURBANCE LEVELS. OR EQUIVALENT PERMANENT PHYSICAL EROSION CONTROL REDUCTION METHODS HAVE BEEN EMPLOYED 6 VEGETATIVE COVERAGE DENSITY DOES NOT APPLY TO PAVED AREAS. GRAVEL BUILDINGS OR OTHER HARD SURFACES IMPERMEABLE AREAS 7 SEE APPENDIX OF SWMP REPORT FOR SEED MIX SPECIFICATIONS PER WELD COUNTY REQUIREMENTS WELD COUNTY CRITERIA SHOULD BE REVIEWED AND FOLLOWED FOR FINAL STABILIZATION 8 THE DESIGN ENGINEER SHOULD REVIEW INFORMATION AVAILABLE ON THE WEEDS SECTION OF THE WELD COUNTY PUBLIC WORKS WEBSITE FOR SEED MIXES THAT ARE APPLICABLE TO WELD COUNTY WELD COUNTY PUBLIC WORKS CAN ASSIST IN SELECTING A SUITABLE SEED MIX 9 RECEIVING WATERS BOX ELDER CREEK AND WELD COUN FY MS4 1► NORTH 30 0 30 60 r I CALL COLORADO 811 OR CALL UTILITY NOTIFICATION CkN I tM 01- COLORADO 1-800-922-1987 CAt 3.RUSINESS DAYS IN ADVANCE RFFORF YOU DIG GRADE OR EXCAVATE I OR 1 ML MARKING 04 UNULHGMOUNU MLMULM U I ILI IILS LUMNLN Ia WRIGHT WATER ENGINEERS, INC. A Fly DALE 2490 W. 26TH AVE. SUITE 100A DENVER, CO 80211 (303)480-1700 FAX(303)480-1020 DESCRIPTION (MIL DESIGN DETAIL CHECK APPROVAL MRL ID/OS/1B LSA 10/05/18 JMK 10/05/18 PURLCSERVICE COMPANY OF COLORADO (PSCO) ENNIS SUBSTATION EXPANSION SCALE SHOWN Et- PLAN -ENNIS.a•g IJOB NO 4091-034.S420 REVISION NO SHEET N0. FINAL EROSION AND SEDIMENT CONTROL PLAN 3 1. Site Map (§I.C.2) The SWMP shall include a legible site map(s), showing the entire site, identifying: a) Construction site boundaries; b) All areas of ground surface disturbance; c) Areas of cut and fill d) Areas used for storage of building materials, equipment, soil, or waste; e) Locations of dedicated asphalt or concrete batch plants; f) Locations of all structural BMPs; g) Locations of all non-structural BMPs as applicable; and h) Locations of springs, streams, wetlands and other surface waters (include all conveyance systems including inlets, outfalls, drainage swales, and detention ponds etc.) Ennis Substation Expansion Project Tab 3 Contact Information and SWMP Administrator Ennis Substation Expansion Project SWMP Administrator (§I.C.3.a): The PSCo SWMP Administrator is responsible for overseeing and/or assigning PSCo personnel, consultants, and/or contractors to aid in the development, implementation, maintenance, and revisions to the SWMP. PSCo's SWMP Administrator designates a Site Stormwater Manager for each project who is responsible for day to day SWMP compliance at the site. The PSCo SWMP Administrator and other contact information for this project are indicated below: Contact Information PSCo Environmental Services: Name: Becky Sturgeon Title: Environmental Analyst P SCo 1800 Larimer Street. Suite 1300 Denver, Colorado 80202 303-294-2189 Email: Rebecca.Sturgeon@xcelenergy.com SWMP Administrator: N ame: Daniel Friendshuh Title: Project Manager Address: 9500 Interstate 76 Henderson, CO 80640 P hone: 303.362.2305 Email: dfriendshuh(burnsmcd.com P roject Manager(s): Name: Charlaine Douden Title: Project Manager Address: Phone: 303-571-7555 Email: charlaine.doudenxcelenergy.com Name: Lance Gilmore Title: Project Manager / Permitee Address: Phone: 207-751-8253 Email: lance.gilmoregxcelenergy.com SWMP and Erosion and Sediment Control Plan (ESC) Prepared by: SWMP and Erosion and Sediment Control Plan (ESC) Prepared by: N ame: Jennifer Keyes, CPESC Company: Wright Water Engineers, Inc. Address: 2460 W. 26th Ave, Ste. 100A Denver, CO 80211 Phone: 303 480-1700 Email: jkeyes@wrightwater.com, imatson@wrightwater.com Ennis Substation Expansion Project Civil/Design Engineer N ame: Dale Murphy Company: Power Engineers Address: Phone: 303-716-8962 Email: dale.murphy5powereng.com P roject Foreman: TBD N ame: Title: Address: P hone: Email: SWMP Inspector: TBD N ame: Company: Address: P hone: Email: BMP Implementation: TBD N ame: Company: Address: Phone: Email: Tab4 Potential Pollutant Sources 1 Ennis Substation Expansion Project Identification of Potential Pollutant Sources (§I.C.3.b): The following potential pollutant sources and activities have been evaluated for their ability to contribute pollutants to stormwater discharges. If the potential exists at the site, the BMPs used to control that source are listed in this section. POTENTIAL SOURCE POLLUTANT POTENTIAL WITH PROJECT? THIS ACTIVITIES BMPs SELECTED ASSOCIATED TO CONTROL WITH THIS THE POLLUTION SOURCE SOURCE AND Y N All disturbed and stored Activities associated with this pollution source are the earth - soils: disturbing activities during all phases of construction • Stockpiled topsoil, soil wetland amendments, fill topsoil, soils material, (i.e. etc.) X activities, backfilling, BMPs including stockpiling, but not rocking/landscaping, limited to excavating, etc. grading, • Disturbed soils Sediment control and stockpile containment may include (exposed staging etc) areas, areas, parking, usage check BMPs Erosion tackifier, of: dams, (i.e. sediment Control and/or Big inlet Red may the and control Bags), placement outlet include logs, and protection surface vehicle of gravel rock roughening, tracking surfaces. bags/rock or other socks, proprietary controls, covering. limiting Administrative reduce the the controls amount number of of open stockpiles. may irclude area at any phased given construction time and to Ennis Substation Expansion Project POTENTIAL POLLUTANT SOURCE POTENTIAL WITH THIS PROJECT ACTIVITIES ASSOCIATED WITH THIS POLLUTION SOURCE AND BMPs SELECTED TO CONTROL THE SOURCE Y N Vehicle tracking of sediments X Activities associated with this pollution source are the movement of vehicles from disturbed areas to paved streets during all phases of construction activities BMPs Sediment control may include stabilized construction entrances (rock, geotextiles, or mud mats), street sweeping and inlet and outlet protection Street sweeping will be used if needed, however, most roads are unpaved and vehicle tracking is not anticipated to be a significant potential pollutant source If necessary, use construction fencing to limit entry and exit points If additional measures are needed such as a rock VTC, mud mat or other type of tracking control it will be installed Management of contaminated soils X No known contaminated soils exist on site If contaminated soils are encountered, all activity will be stopped until the situation can be assessed (see Tab 8 for Contaminated Soil Process Fact Sheet) The Project Manager will be contacted for further direction Loading and unloading operations X Activities associated with this pollution source are potential spills during delivery and unloading of materials during all phases of construction activity BMPs Loading and unloading operations should occur within the Project area Administrative controls may include materials management practices, personnel training, providing spill kits where needed, minimizing the number of areas where loading and unloading occur The Project Manager will be contacted immediately for all spills Ennis Substation Expansion Project POTENTIAL POLLUTANT SOURCE POTENTIAL THIS PROJECT? WITH ACTIVITIES BMPs SELECTED ASSOCIATED TO CONTROL WITH THIS THE POLLUTION SOURCE SOURCE AND Y N Outdoor storage activities (including building materials, fertilizers, chemicals, etc.) X Activities material from BMPs these etc. and at Manager associated the personnel materials. Use petroleum of erosion/sediment staging controls the of will secondary storage with training, be products. areas may contacted this or include pollution and staging control containment providing the immediately materials source potential area logs, spill rock device may kits are for management include socks, where for spills storage for all storage spills. needed. and temporary installation of leaks of Containment of berms, liquids Administrative practices, Project silt fence, The Vehicle equipment maintenance and fueling and X Potential liquids equipment phases mobile brings be BMPs indicated a associated fueling inlets/waterways. than of temporary pollution at containers construction on to and immediately or where the Use on contain 1,320 engineer vehicles or site, controls personnel the site. plastic be Control sources with fueled above site fueling they gallons will Where fluids. is equipment and activity. sheeting, for map will may be training. and required. include ground occurs Provide all of stored equipment offsite fueling be Clean include and spills. petroleum Countermeasure staged Most and drip The or storage will spill up onsite fuels, performance. cr equipment a have and materials repair combination. equipment maintenance away kits pans, Project products overnight oils, tank a where dispose spill from dirt antifreeze, may management Manager (AST) berms plan, Fueling will in occur kit maintenance storm fueling If located activities of 55 a be site stamped material fueled the on and -gallon during sewer will -specific and of site, is contractor other be nearby. other it are spilled drums by all using will a immediately. If Limit activities performed system conducted. measures Administrative practices contacted or Spill professional more larger areas Prevention, Ennis Substation Expansion Project I POTENTIAL POLLUTANT SOURCE POTENTIAL WITH THIS PROJECT? ACTIVITIES ASSOCIATED WITH THIS POLLUTION SOURCE AND BMPs SELECTED TO CONTROL THE SOURCE Y N Significant dust or particulate generating processes X Activities associated with this pollution source are the earth - disturbing activities during all phases of construction activities, including but not limited to excavating, grading, landscaping etc There is also the potential for wind to transport dust from disturbed areas Significant dust is not anticipated to be a common pollution source for this project However, if dust becomes an issue, the BMPs listed below will be utilized BMPs Limit earth disturbing activities to the extent feasible Water disturbed areas and roads as -needed during construction, use of palliatives to control dust, interim stabilization measures such as surface roughening, final stabilization, and other effective means Routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils, etc X Activities associated with this pollution source are limited due to the nature of construction activities Fueling and maintenance activities involving vehicles and equipment and the potential for use of fuels, oils, solvents, etc , are discussed above Seeding operations will bring all material onsite and remove it promptly after use Tackifiers, etc will not be stored onsite overnight BMPs Liquids should be stored in secondary containment Administrative controls may include materials management practices, personnel training in proper use and storage of materials On -site waste management practices (waste piles, liquid wastes, dumpsters, etc ) X Activities associated with this pollution source are generation of waste materials during all phases of construction activities that include but are not limited to debris, waste materials, and wastes generated from various activities such as clearing and grubbing BMPs Use of waste receptacles, proper disposal of waste liquids, and hauling off waste materials or covering materials with a tarp or installing perimeter controls such as temporary berms, silt fence, wattles, etc until they are hauled off site Liquids should be stored in secondary containment Dumpsters will not typically be used on small projects However, they will be utilized on larger projects where they will be serviced frequently by a licensed company Ennis Substation Expansion Project POTENTIAL SOURCE POLLUTANT POTENTIAL WITH PROJECT? THIS ACTIVITIES SELECTED ASSOCIATED TO CONTROL THE WITH SOURCE THIS POLLUTION SOURCE AND BMPs Y N Concrete truck/equipment washing, concrete and fixtures associated truck and including equipment chute the X including Activities foundations. BMPs associated but concrete can not Where be limited used applicable, washout with depending to this the areas pollution detention urban that on the source are mobile pond, amount clearly are outfall, concrete concrete of marked and concrete washout pours new and used on the Dedicated maintained. structures project. Dedicated asphalt concrete batch plants and X No projects. dedicated asphalt or concrete batch plants are planned for these Non -industrial sources and worker portable toilets waste trash X Activities generation materials, cause BMPs adverse housekeeping system be associated litter, of properly of offsite non impacts or and -industrial waterways. or anchored sanitary practices with the to this use water waste waste down potential of and quality. waste such at trash and the pollutant containers. located as collected construction discarded source away in Portable vehicles from or include site demolition that toilets the and storm the may Good disposed should sewer Other areas procedures potential spills occur or where can X No other potential pollutants have been identified at this time. Ennis Substation Expansion Project Tab 5 BMPs for Stormwater Pollution Prevention Ennis Substation Expansion Project Structural Practices for Erosion and Sediment Control (LC.3.c)1) Structural practices are those physical structures implemented at the site to minimize erosion and sediment transport. The structural BMPs that are planned to be used for the project are described below. Specific locations for BMP implementation at the site are indicated on the site plans, provided in Tab 2. Tab 6 provides the installation and maintenance details for these BMPs. One goal of a SWMP is to allow :or field fitting of BMPs based on site -specific conditions that may favor u se of one BMP over another. BMP Site Maps illustrating site -specific BMPs may be modified in the field if changes are made. Temporary Berms Temporary berms shall be made of compacted soil and be continuous. Berms can be used for stockpile management, at the top of a slope, at the toe of slopes, around storage areas, or in conjunction with drainage swales. Berms are typically used to control the flow path of runoff at a construction site by diverting runoff around areas prone to erosion such as steep slopes or areas with materials to minimize the potential for the materials to come into contact with stormwater and move off -site. Berms are also u sed in conjunction with drainage swales to direct surface flows to a sediment trap or basin. Berms are a temporary feature and shall be removed prior to final grading and permanent seeding. Inspections will be conducted to verify the continuous, compact nature of the berm. Maintenance will include repairing breaks or low spots. Erosion Control Blankets (ECBs and Turf Reinforcement Mats (TRMs) ECBs/TRMs are sheets of straw, excelsior, coconut, manmade fiber, or combination there of, usually contained between layers of netting to provide structural integrity. ECBs/TRMs function by providing ground cover that reduces erosive action. TRMs are able to handle higher levels of concentrated flows and are used mainly in channel applications. ECEs and TRMs may be used in conjunction with other velocity reducing BMPs. ECB/TRM applications include, but are not limited toslope and swale protection. ECBs/TRMs will be inspected for erosion underneath and at the sides of the material.. sediment accumulation, rips tears and other structural problems. Maintenance will include removing sediment, re -securing material to ground and re -trenching or replacement, as needed. Perimeter Control Perimeter control serves as erosion and sediment control and, when appropriate, access control. At down gradient locations, perimeter controls will be instal ed where overland sheet flow has the potential to leave the site. In nearby areas. perimeter control may be added to define project boundaries, limit on -site flows or protect off -site features. Such controls should be suitable to the application. Perimeter control may consist of any number of BMPs. including, but not limited to earthen berms, erosion/sediment control logs, rock socks, silt fence, construction fencing, etc. Perimeter control will be used around bore holes, trenches, and other locations where sediment is exposed and may accumulate. Perimeter control will remain in place until areas nearby of controls are stabilized. Perimeter control will be inspected for proper installation, structural integrity and accumulated sediment. Maintenance would include repairing or replacing damaged sections and removing accumulated sediment. Rock Socks/ Curb Socks Rock socks or curb socks are wire or geotextile tubes filled with rock or gravel material. Rock socks may be used as inlet protection, outlet protection, swale protection or in any area where concentrated flows n eed to be broken up and velocity reduced to prevent erosion. Rock socks serve to reduce water velocity allowing time for sediment to settle out, thus decreasing erosion potential and sediment transport. When u sed for swale protection rock socks need to extend the entire width of the expected flow with the center lower than the sides. For use as inlet or culvert protection, the rock sock should extend beyond the width of the inlet/culvert and delineators installed in areas where curb socks present a potential traffic hazard. Rock socks may be stacked to maximize performance. Delineators will be installed with curb socks for Ennis Substation Expansion Project high traffic areas where installations present a potential traffic hazard or where they may be damaged by vehicles or snow plows Rocks socks will be inspected for proper installation, structural integrity and accumulated sediment Maintenance includes repairing or replacing damaged sections and removing accumulated sediment Designated Staging Area A designated staging area is a specific location on or near the project site for stockpiling/staging materials and equipment for use on -site A designated staging area allows for a central location for deliveries and storage of equipment when not in use, and reduces disturbance of areas of the site not scheduled for disturbance through construction activities Designated staging areas generally consist of a cleared area of the site with vehicle tracking control and perimeter control (e g silt fence and/or construction fencing) Designated staging areas will be implemented as needed on site They should be positioned to reduce the need for relocation and be placed out of areas of active construction activity Designated staging areas will be inspected for adequate vehicle tracking control and perimeter control Designated staging areas should be repaired or modified as needed Vehicle Tracking Control (VTC) Vehicle tracking control may consist of an excavated area with a geotextile liner (optional) and gravel, metal grate or asphalt/concrete "rumble strip" Tracking control is designed to cause soil to vibrate off equipment and vehicles as they transition from disturbed soils to paved areas The vehicle tracking control will remain in place until access to the areas used by the control are or no longer needed Designated points of ingress and egress, where traffic transitions from a stabilized road surface (e g gravel or pavement) to disturbed soil, are likely to need vehicle tracking control Tracking control may be moved or eliminated as on -site conditions and activities change Tracking control will be inspected for depth of gravel/rock, presence of excess soil, proper usage and the overall general condition The most common maintenance items include the removal of accumulated soil, scarifying with teeth, and the addition of gravel/rock In some areas where access is anticipated to be through road base and gravel areas, geotextiles, mud mats, turf mats or cattle guards or proprietary products (e g V-Trax ®) may be installed to provide a stabilized entrance if needed These materials will be inspected for tears and will be maintained as needed Erosion/sediment control log An erosion/sediment control log consists of a net or geotextile fabric filled with straw, excelsior, wood mulch or other fillers Erosion/sediment control log applications include, but are not limited to, slope stabilization, perimeter control, check dams in swales, back of curb protection and temporary secondary containment for stockpiles, materials storage, or masonry Erosion/sediment control logs reduce water velocity allowing sediment to accumulate on the up -gradient side of the log The basic installation for a net wrapped erosion/sediment control log is to prepare a shallow trench, and secure the log in the trench using a stake or landscape pin Logs should be installed based on manufacturer's directions Logs should be inspected for proper installation, structural integrity and sediment accumulation Silt fence Silt fence consists of geotextile fabric installed with at least six inches of the fabric trenched into the soil, wooden stakes are attached on the down -gradient side Wire -backed fence may be used or additional stakes or lathe may be added on the up -gradient side for strengthening the fence around corners or in high wind conditions Silt fence provides sediment control by reducing water velocity and ponding water to facilitate the deposition of sediment on the up -gradient side of the fence Silt fence applications include, but are not limited to project perimeter control, secondary containment, back of curb protection and containment for any disturbed or staging area Silt fence will be inspected regularly for sediment accumulation, tears or holes in the fabric, broken stakes, gaps in the fabric, or areas where the fabric needs to be re -attached to the wooden stakes Maintenance includes repairing the items noted, removing sediment accumulation to keep BMP in effective and operable state, or replacing the fence as needed Ennis Substation Expansion Project Concrete Washout Area Concrete washout areas must be designated on all sites that will generate concrete wash water or liquid concrete waste from onsite concrete mixing or concrete delivery. Concrete waste management involves designating and properly managing a specific area of the construction site as a concrete washout area. A concrete washout area can be created using one of several approaches designed to received wash water from washing of tools and concrete mixer chutes, liquid concrete waste from dump trucks, mobile batch mixers, or pump trucks. Three basic approaches are available: excavation of a pit in the ground, use of an above ground storage area, or use of prefabricated haul -away concrete washout containers. Surface discharge of concrete washout water from construction sites are prohibited. Sediment Basin Most Large construction sites (typically greater than 2 acres) will require one or more sediment basins for effective management of construction site runoff. A sediment basin in a temporary pond built on a construction site to capture eroded or disturbed soil transported in storm runoff prior to discharge from the site. Sediment basins are designed to capture site runoff and slowly release it to allow time for settling of sediment prior to discharge. Sediment basins are often construction in locations that will later be modified to serve as post -construction stormwater basins. Additional BMPs may be added as site conditions change and will be identified in the SWMP prior to installation. Non -Structural Practices for Erosion and Sediment Control (§I.C.3.c)2) Non-structural practices are those practices which, when implemented, will minimize erosion and sediment or other pollutant transport. Practices implemented at this site include interim stabilization practices, permanent stabilization practices (see Tab 2), and site -specific scheduling for implementation of the practices, as well as site management practices and personnel training. The potential non- structural BMPs for the project are described below. Specific locations for BMP implementation at the site are indicated on the site plans, provided in Tab 2. Tab 6 provides the insta lation details for each BMP identified. Temporary Stockpile Stabilization Mulch and/or tackifier may be used for temporary stabilization of stockpiles, if needed. This temporary stabilization will be inspected and maintained until the stockpile is removed. Course Aggregate and Road Base Most disturbed areas will be resurfaced with course aggregate or road base materials. These materials are non -erosive and will be inspected to ensure that they provide adequate cover and size to minimize the potential for erosion. Crimp Mulch Crimp mulching uses hay or straw material that is machine crimped into the soil to provide stability. Crimp mulch may be used on its own as a temporary so I stabilization method, or in conjunction with seeding for final stabilization. Crimp mulch functions as a soil stabilizer by decreasing the velocity of sheet flow. Mulch may be hay or cereal grain straw. Mulch will likely be crimped into the soil using either a drill seeder or notched disk plow to the minimum depth of two inches and a maximum depth of four inches. To maximize effectiveness crimping equipment must run parallel to the contours of the land. Crimp mulch may not be appropriate for slopes that are equal to or greater than 3:1 or in areas with hard or rocky soil in which the crimper cannot penetrate. Inspectiors should look for areas where mulch is missing, thin or for areas where erosion has occurred. Maintenance items would include re -grading as necessary and reapplying mulch as needed. Ennis Substation Expansion Project Seed and Stabilization (Temporary and Permanent Ground Cover) Seeding involves the mechanical or hand application of specific seed mixes appropriate for the site location and soil type Seeding provides plant growth to stabilize the soil reducing the likelihood of erosion or sediment transport As soon as practical, after the completing of construction activities, soil should be properly prepared and seeded The choice of seed mix will dictate application rates and methods Seeding should always be accompanied by an additional BMP, such as mulching or tackifying, to protect the seed and soil from erosion during the germination and growth process Seed areas will be inspected to ensure that the soil stabilization method (e g surface roughening, crimp mulch, etc) was applied correctly and has not been compromised The area will also be inspected for erosion and/or sediment deposition Maintenance items would include re -grading and seeding bare or areas of thin vegetative growth and/or adding additional BMPs as appropriate If seeding cannot be accomplished due to seasonal or other constraints, temporary stabilization, such as mulch and mulch tackifier will be used This temporary stabilization will be inspected and maintained until permanent seeding is allowed Street Sweeping (limited anticipated use) Soils deposited on paved surfaces will be swept or cleaned as needed to reduce the potential of sediment transport and tracking Sweeping operations consist of the scraping of large quantities of sediment from pavement and/or sweeping, via hand or mechanical means to remove as much deposited sediment as possible All streets within and immediately surrounding a construction site will be cleaned of earth material when sediment has been deposited on the roadway and is being tracked off site Scraped or swept material will not be deposited in the storm sewer Sweeping and vacuuming may not be effective when soil is wet or muddy Street sweeping will be performed daily and as needed during active construction Surface Roughening Surface roughening consists of grooves or tracks installed in the soil surface, parallel to the slope This is a temporary soil stabilization technique that works well in areas that will remain inactive for a short time Surface roughening works by reducing water velocity and promoting infiltration, thus decreasing the potential for erosion to occur Any disturbed areas with no construction activity planned for longer than 14 days may be surfaced roughened This may include areas where scheduling prevents the immediate implementation of final stabilization practices, the sides of stockpiles or other slopes Surface roughening may be applied by creating a continuous furrow parallel to the slope This can be done with the teeth on a loader bucket, ripping, disking or plowing equipment Surface roughening can also be created by running tracked equipment up and down the slope Inspection of surface roughened areas would include proper implementation, structural integrity and areas of erosion or sediment accumulation Maintenance for surface roughening would include re -applying the technique or installation of new or additional BMPs Wind Erosion Control Wind erosion and dust control may be necessary if wind is transporting soil within or off site Wind erosion control functions to stabilize the soil surface reducing the potential for wind erosion Wind erosion control consists of applying water and/or other dust palliatives as necessary to prevent or alleviate erosion by the forces of wind Covering of small stockpiles or areas is an alternative to applying water or other dust palliatives If needed, a soil tackifier can be applied to control wind erosion Disturbed areas should be inspected for obvious signs of wind erosion and BMPs implemented, if needed Areas with wind erosion controls in place should be inspected for structural integrity and coverage, and repaired or replaced as appropriate Training Employees and contractor will be trained on good housekeeping, the proper use and storage of materials, and site management practices PSCo construction supervisors and project managers participate in annual stormwater training on the company's learning management system Additionally, lead stormwater management supervisors have given trainings to multiple companies that frequently work for PSCo Ennis Substation Expansion Project PSCo also requires all of its SWMP developers, BMP installers, and stormwater inspectors to hold either a CISEC or CPESC certification. Site Management Practices Good housekeeping will be used to keep potential areas where pollutants exist clean and orderly. Containers, drums, and bags will be stored away from direct traffic routes to reduce the risk of accidental spills. Stack containers according to manufacturer's instructions to avoid damaging the containers from improper weight distribution. Containers will be stored on pallets or similar devices to prevent corrosion of containers that results from containers coming in contact with moisture on the ground. Liquids will be stored within curbed areas or secondary containment. Ennis Substation Expansion Project Tab 6 BMP Details/Specifications Ennis Substation Expansion Project BMP P Index Structural BMPs • Rock Socks • Big Reds® (Potential Alternate to Rock Socks) • Sediment Control Log • Outlet Protection • Concrete Washout Area • Vehicle Tracking Control • Stabilized Staging Area • Sediment Basin Non -Structural BMPs • Surfacing Roughening • Rolled Erosion Control Products • Mulching • Temporary/Permanent Seeding • Wind Erosion/Dust Control Waste Management and Material Pollution Control BMPs • Construction Phasing/Sequencing • Good Housekeeping Practices • Stockpile Management • Street Sweeping • Protection of Existing Vegetation Sources: • Urban Drainage and Flood Control District (UDFCD), Urban Storm Drainage Criteria Manual Volume 3, November 2015. • Proprietary Products — Manufacturer's Information STRUCTURAL BMPs Rock Sock (RS) Description A rock sock is constructed of gravel that has been wrapped by wire mesh or a geotextile to form an elongated cylindrical filter. Rock socks are typically used either as a perimeter control or as part of inlet protection. When placed at angles in the curb line, rock socks are typically referred to as curb socks. Rock socks are intended to trap sediment from stormwater runoff that flows onto roadways as a result of construction activities. Appropriate Uses Rock socks can be used at the perimeter of a disturbed area to control localized sediment loading. A benefit of rock socks as opposed to other perimeter controls is that they do not have to be trenched or staked into the ground; therefore, they are often used on roadway construction projects where paved surfaces are present. Use rock socks in inlet protection applications when the construction of a roadway is substantially complete and the roadway has been directly connected to a receiving storm system. SC -S Design and Installation Photograph RS -l. Rock socks placed at regular intervals in a curb line can help reduce sediment loading _o storm sewer inlets. Rock socks can also be used as perimeter controls. When rock socks are used as perimeter controls, the maximum recommended tributary drainage area per 100 lineal feet of rock socks is approximately 0.25 acres with disturbed slope length of up to 150 feet and a tributary slope gradient no steeper than 3:1. A rock sock design detail and notes are provided in Detail RS -1. Also see the Inlet Protection Fact Sheet for design and installation guidance when rock socks are used for inlet protection and in the curb line. When placed in the gutter adjacent to a curb, rock socks should protrude no more than two feet from the curb in order for traffic to pass safely. If located in a high traffic area, place construction markers to alert drivers and street maintenance workers of their presence. Maintenance and Removal Rock socks are susceptible to displacement and breaking due to vehicle traffic. Inspect rock socks for damage and repair or replace as necessary. Remove sediment by sweeping or vacuuming as needed to maintain the functionality of the BMP, typically when sediment has accumulated behind the rock sock to one-half of the sock's height. Once upstream stabilization is complete, rock socks and accumulated sediment should be removed and properly disposed. Rock Sock Functions Erosion Control No Sediment Control Yes Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 RS -1 SC -5 Rock Sock (RS) 132' (MINUS) CRUSHED ROCK /- ENCLOSED N WIPE MESH 0 ON BEDROCK CR L HARD SURFACE, 2' IN 5011 ROCK SOCK SECTION ROCK SOCK TYP WIRE -IF ENDS GROUND SURFACE (M,NLS) CF&JSHEU ROCK ENCLOSED IN WIRE MESH �' TO 6' MAC AT CURS OTHERW(SF 6' 0" DEPENDING ON EXPECTED SEDIMENT LOADS ROCK SOCK PLAN ANY CAP AT JOINT SHALL BE FILLED WITH AN ADEQUATE AMOUNT OF il" (MINUS) CRUSHED ROCK AND WRAPPED WI1r1 ADDITIONAL WIRE MESH SECURED TO ENDn O1- RCC.K REINFORCED SOCK AS AN ALTERNATIVE TO FILLING` JOINTS BETWEEN ADJONING ROCK SOCKS WITH CRUSHED ROCK AND 12 12 ADDITIONA_ WIRE WRAPPING, ROCK SOCKS CAN BE OVERLAPPED (TYPICALLY 12 -NCH OVERLAP) 10 A,fOID GAPS ROCK SOCK JOINTING ROCK SOCK INSTALLATION NOTES 1 SEE PLAN VIEW FOR' -LOCAT'ON(S) OF ROCK -SOCKS GRADATION TABLE SIEVE 512E 1 MASS PERCENT PASS NG SQUARE MESH SIEVES I NO 4 I 2 I 1Co i BO — 100 1-: 20 55 ale" E 0 — 15 0 — 5 MATCHES SPFC]F'CATIONS FOR NO 4 COARSE AGGPECATE FOR CONCRETE PER AASHTO M43 ALL ROLK SHALL BE FRACTLRED FACE, ALL S(DCS 2 CRUSHED ROCK S'-IAII BE 1)C (MINUS) IN SIZE WITH A FRACTURED FACE ANC SHALL COMPLY WITH GRR;]ATION SHOWN ON -HIS SHEET (I1$.' MINUS) (AL I SIDES) 3 WIRE MESH SHALL SE FABRICATED OF 10 GAGE POULTRi MESH, OR EQUIVALENT, WITH A MAk,MIN1 OPENING OF j', RECOMMENDED MINEM,JM ROLL WIDTH OF 4S' 4 WERE MESH SHALL BE SECURED USLNC "HOC RINGS" OR WIRE TIES AT 6 CENTERS ALONG ALL JOINTS AND Al 2' CENTERS ON ENDS OF SOCKS 5 SOME MUNICIPALITES MAY ALLOW THE USE OF FILTER FABRIC AS An ALTERNATVE TO W'RE MESH rOR THE RCCEc ENCLOSJRE RS -1 ROCK SOCK PERIMETER CONTROL RS -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rock Sock (RS) SC -S ROCK SOCK_. MAINTENANCE NOTES 1. INSPECF @MPs EACH WORKDAY, AND MAINTAIN THEM ?hI _FVLCFI 'E OPLRAi INQ CONDITION. MAINTENANCE OF 8MPs SHOULD BE PROACTIVE. NOT REACTIVE, INSPECT F3MPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURPACI EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY CESSARY 1'o MAINTAIN BMPs IN EFFECTIVE OPERATINC CONDITION . INSPECTIONS AND CORK ECTIvE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. . 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE I d1TIATED UPON DISCOVERY OF THE FAILURE. 4. ROCK SOCKS SHALL BE REPLACED IF THEY BECOME HEAVILY SOILED, OR DAMAGED BEYOND REPAIR, 5. SEDIMENT ACCUMULATED UPSTREAM OF ROCK SOCKS SHALL BE REIAOVED AS NEEDED O MAINT N E LJ"ICTiQ NIALiTY OF THE B MP, TYPICALLY WHEN DEPTH OF ACCUMULATED SEDIMENT IS APPROXIMATELY OF WE HEICHT OF rHE ROCK SOCK. 6. ROCK SOCKS ARE TO REMAIN IN PLACE UNTIE. THE UPSMEAM DISTURBED AREA IS STABILIZED ANC APPROVED BY THE LOCAL JURISDICTION_ 1. al-4EN ROCK SOCKS ARE REMOVED, ALL DISTURBED AREAS SHALL BE COVERED WITH TOPSOIL. SEEDED AID MULCHED OR OTHERWISE STABILIZED AS APPROVED BY LOCAL JJEURISDICTK)N. (DETAIL ADAPTED FROM TOWN OF PARKER, COLORADO AND CITY or AURORA, COLORADO, Nor AVMLAHtE iN AJTOCAD) NOTE; MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS, CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD 8E USED WHEN CIFFEREi.NCES ARE NOTED. NOTE: THE DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL uETHODS OF ROCK SOCK iNSTALiATION Ire THE OENV£R METROPOLITAN AREA THERE AK MANY OTHER SIMILAR PROPRIETARY PRODUCTS ON THE MARKET. LEDFOD NEITHER NDORSES NOR DISCOURAGES USE OF PROPRIETARY PROTECTION PRODUCTS; HOWEVER, IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM Tilt I',ANUFACTURER TRUST 8E INCLUDED IN THE SWMP PAD THE SMP MUST SE INSTALLED AND MAINTAINED AS SHOWN iN THE MANUFAOTLIREP'S DETAILS. November 2010 Urban Drainage and Flood Control District RS -3 Urban Storm Drainage Criteria Manual Volume 3 • SWP-CI "Big Red" Curb Inlet Protector By ASP Enterprises and Storm Water Products Temporary and Reusable Solutions for Sediment Control • Reusable Curb Inlet Protection • Environmentally Friendly • Drops out sediment by dissipating the water energy "Big Red" Filter Advantages: • Easy to Install • Versatile for a variety of curb Inlets • Reusable and Extremely easy to clean • Made from 90% Inert Recycled Materials MIIIIIIIMMONINIIP sow amommIIIMImie A.S.P. ENTERPRISES. INC. You+ Geo Sniarre. D►st•!buto? asidesa so, The SWP-CI "Big Red" Filter is a REUSABLE inlet protector that keeps out sediment throughout the entire construction project. There are no pockets to fill, no velcro bags, no assembly etc. Simply place in front of the inlet, make sure it lays in the contour, and you are DONE! Simple installation also translates into simple removal, cleanup and re -use at the next project or phase. Maintenance is simple as well by lifting the unit from the inlet, shaking the mud off of it, removing the sedi- ment on the concrete, and placing the unit back. If it is severely filled with sediment, wash it out in a vegetated area and it is as good as new. All of these features and benefits combine to make the SWP-C I "Big Red" curb inlet protec- tor the perfect choice for all curb inlet applica- tions. It comes in 54" long for single curb inlets and 104" lengths for double curb inlets. • High Flow Rate • Made of Durable High -Strength Geotextile • Fully Reusable • Made of Recycled Materials I S ■ SWP=CT "Big Red" Curb Inlet Protector By ASP Enterprises and Storm Water Products A.S.P. ENTERPRISES. INC. Your GeoSource fu tc,butor Specifications: 1. Infill Material: shredded recycled rubber tires 2. Weight: approx. 10 lbs per linear foot 3. Diameter: approx. 8" Geotextile fabric made of durable high flow fabric with the following prop- erties: Property Weight Grab Tensile Strength Tear Strength (Trapezoid) Burst Test Method ASTM D5261 ASTM D4632 ASTM D4533 ASTM D3786 Units oz/sq. yd lb lb psi Typical Value 9.3 warp 250 fill 290 warp 60 fill 50 440 (Efforts were made to determine flow rate -the fabric exceeded all capacities of the testing equipment) ASP Enterprises and Storm Water Products assumes no liability for the accuracy or completeness of this information or for the ultimate use by the purchaser. ASP and SWP disclaims any and all express, implied, or statutory standards, warranties or guarantees, including without limitation any implied warranty as to merchantability or fitness for a particular purpose or arising from a course of dealing or usage of trade as to any equipment, materials or information furnished herewith. This document should not be construed as engineering advice. ■ Sediment Control Log (SCL) SC -2 Description A sediment control log is a linear roll made of natural materials such as straw, coconut fiber, or compost. The most common type of sediment control log has straw filling and is often referred to as a "straw wattle." All sediment control logs are used as a sediment barrier to intercept sheet flow runoff from disturbed areas. Appropriate Uses Sediment control logs can be used in the following applications to trap sediment: • As perimeter control for stockpiles and the site. ■ As part of inlet protection designs. • As check dams in small drainage ditches. (Sediment control logs are not intended for use in channels with high flow velocities.) • On disturbed slopes to shorten flow lengths (as an erosion control). . -- Photographs SCL-I and SCL-2. Sediment control logs used as 1) a perimeter control around a soil stockpile; and, 2) as a "J -hook" perimeter control at the corner of a construction site. • As part of multi -layered perimeter control along a receiving water such as a stream, pond or wetland. Sediment control logs work well in combination with other layers of erosion and sediment controls. Design and Installation Sediment control logs should be installed along the contour to avoid concentrating flows. The maximum allowable tributary drainage area per 100 lineal feet of sediment control log, installed along the contour, is approximately 0.25 acres with a disturbed slope length of up to 150 feet and a tributary slope gradient no steeper than 3:1. Longer and steeper slopes require additional measures. This recommendation only applies to sediment control logs installed along the contour. When installed for other uses, such as perimeter control, it should be installed in a way that will not produce concentrated flows. For example, a "J -hook" installation may be appropriate to force runoff to pond and evaporate or infiltrate in multiple areas rather than concentrate and cause erosive conditions parallel to the BMP. Sediment Control Log Functions Erosion Control Mcderate Sediment Control Yes Site/Material Management No November 2015 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SCL-1 SC -2 Sediment Control Log (SCL) Although sediment control logs initially allow runoff to flow through the BMP, they can quickly become a barrier and should be installed as if they are impermeable. Design details and notes for sediment control logs are provided in the following details. Sediment logs must be properly installed per the detail to prevent undercutting, bypassing and displacement. When installed on slopes, sediment control logs should be installed along the contours (i.e., perpendicular to flow). Improper installation can lead to poor performance. Be sure that sediment control logs are properly trenched (if lighter than 8 lb/foot), anchored and tightly jointed. Maintenance and Removal Be aware that sediment control logs will eventually degrade. Remove accumulated sediment before the depth is one-half the height of the sediment log and repair damage to the sediment log, typically by replacing the damaged section. Once the upstream area is stabilized, remove and properly dispose of the logs. Areas disturbed beneath the logs may need to be seeded and mulched. Sediment control logs that are biodegradable may occasionally be left in place (e.g., when logs are used in conjunction with erosion control blankets as permanent slope breaks). However, removal of sediment control logs after final stabilization is typically appropriate when used in perimeter control, inlet protection and check dam applications. Compost from compost sediment control logs may be spread over the area and seeded as long as this does not cover newly established vegetation. SCL-2 Urban Drainage and Flood Control District November 2015 Urban Storm Drainage Criteria Manual Volume 3 Sediment Control Log (SCL) SC -2 - SCL-SCL - SCL- FL,'ir = -` 2F ' L • �E - +'+I TAKE /• �'\' fi\.\, .\\\\'\'. \ I,:SETE� tJl'. +ATE; 'ETD. 'L L "..A" "EE) T' =5E E"I�E".'E ''EE" E- 2 l'122: E L.): T' THE_E FEAT :E` TRENCHED SEDIMENT CONTROL LOC '.+ TE E>'' ATE, T�EI.'H i 'IL FL'.. - f ; \r; 7 ;�� C\ ''E.TE • `T"I'E I\ T -c 'L L' 4 I- \,\ 4 E. I',^EST ; t,\T< L L ; L;TY'i SECTION TRENCHED SEDIMENT CONTROL LOG q111111111111(11111111 Ii ii IA+,'ETE'. L ?' A 's' s+I E' •.T- ( E I1�11111IIII�IIIIIIIIIII1 LOG JOINTS SCL-1 TRENCHED SEDIMENT CONTROL LOG November 2015 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SCL-3 SC -2 Sediment Control Log (SCL) FL r• .f - II r/ I4.., It I • / ,ft. 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COMPOST SEDIMENT CONTROL LOG (WEIGHTED) n:'`ti;' ; =LAC E`S FILTEi� ' 4E„I4. .,:%;• solL • • • I TER T.EINI ,-`r -r,L ••• •"..L•rl' ETEn ;3:•I r' `•ti • • .•. .T •:E; sIk<E\T aTi{''•L LOU *b•�♦f.!•••� .• .• :'/ ♦f ••#••%. ••/ �•!/! •• . •• '. •' r,J•. { ♦'♦'• •{♦.j♦'.• J•♦.•<♦..•cf\� ','♦\• • •♦/ ,•� r',:i♦' •♦,•♦ `♦• '.i '•'•• \• tNs: Jl •J/ t♦ SECTION (A) COMPOST SEDIMENT CONTROL LOG . •• •IrastillEP• el". • I,: • cc I I 1 I I I I IU.METEe �!I^i`, =E':I ME NT r:••rill �i:IL L:: % 4. r • •f 1 r 1 1 I I I I I I I I I III I I I I I I ,I I 1 1 1 1 I I I I LOG JOINTS I .•• I. II •, . ',/f. Y ';' 7{ n :41:\.1 t t 1 1 1 I I 1 I 1 I k(;• ,--• ski ••>Tt.KE J// r! • SCL-2. COMPOST SEDIMENT CONTROL LOG CWEIGHIED) SCL-4 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 November 2015 Sediment Control Log (SCL) SC -2 f YAA F' 7>,EV. HE.' • L- „' F„ " T ,.L: • \ C.; • A E+11.rL -r 4 I`K. IE .,E''EN_ I 'E L I-Er'I`.ETE: F .,ITE SCL-3 SEDIMENT CONTROL LOGS TO CONTROL SLOPE LENGTH November 2015 Urban Drainage and Flood Control District SCL-5 Urban Storm Drainage Criteria Manual Volume 3 SC -2 Sediment Control Log (SCL) SEDIM ENT CONTROL LOG INSTALLATION NOTES _ SEE PLk VIEW FOR LOCATICA AND LENGTH OF SEDIMENT CONTROL LOGS_ 2. SEDIMENT CONTROL LOGS THAT ACT AS A PERIMETER CONTROL SHALL HE INSTALLED PRIOR TO ANY UFGRADIENT LAND —DISTURBING AC'.TIV1TIES. .1. SEDIMENT CONTROL LOGS SHALL CONSIST OF STRAW, COMPOST, EXCELSIOIR OR COCONUT FIBER, AND SHALL BE FREE OF ANY NOXIOUS XIOUS EELS SEEDS OR DEFECTS INCLUDING HIPS, HOLES AND OBVIOUS ;US WEAR. 4. SEDIMENT CONTROL LOGS MAY DE USED AS SMALL CHECK DAMS IN DITCHES ANO SWALES. , HOWEVER. THEY off C'U LD NOT SE USED I N PERENNIAL STREAMS. 5_ IT IS RECOMMENDED THAT SEDIMENT CONTROL LOGS BE TRENCHED INTO THE GROUND Tw A DEPTH OF APPROXIMATELY )S OF THE DIAMETER OF THE LOC. IF TRENCHING TO THIS DEPTH IS NOT FEASISLE AND/OR DESIRA9LE (SHORT TERM INSTALLATION WITH DESIRE NOT TO LA A E LANDSCAPE) A LESSER TRENCHING DEPTH MAY SE ACCEFTASLE WITH MORE ROBUST STAKING. COMPOST LOGS THAT ARE a LB/FT DO NOT NEED TO SE TRENCHED. 6. THE UPHILL SIDE OF THE SEDIMENT CONTROL LOC SHALL 8E BACK FILLED WITH SOIL OR FILTER MATERIAL THAT IS FREE OF SOCKS A N I) D'E},3 N 11. THE SOIL SHALL BE TIGHTLY COMPACTED INTO THE SHAPE OF A RIGHT TRIANGLE USING A SHOVEL OR WEIGHTED LeciNN ROLLER OR BLOWN IN PLACE. 7. FOLLOW MANUFAOTJRE S' CiJI')ANCE FOR STAKING. IF MANUFACTURERS' IN ST..JCTIOK= S DO NOT SPECIFY SPACINC, STAKES SHALL fE PLACED ON 4' CEFcTERS AND EMBEDDED A MINIMUM is OF 6" INTO THE GROUND. . 3" OF THE STAKE SHALL PROW iDE FROM THE TOP ` .F THE LOC- STARES THAT ARE BROKEN PRIOR TO INSTALLATION SHALL BE REPLACER. COMPOST L::(11S SHOULD BE STARED 10' ON CENTER. SEDIMENT CONTROL LOG MAINTENANCE NOTES 1. INSPECT B Ps EACH WORKDAY, AND ,i1AINTAIN THEM IN EFFECTIVE OPERATING CONDITION. kk'A.INTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIEILE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AN') MAINTENANCE ARE NECESSARY TO MAINTAIN amps,IN EFFECTIVE OPERATII C C.'CNDITION, I SWEC:TIONS AND CORRECTIVE MEASURES SHOULD hE DOCU ►Y! ENTER THOROUGHLY, 3_ 'WHERE BMPs s HAVE FAILED, REPAIR OR REPLACEMENT SHOULI; BE INITIATED UPON DISCOVERY OF THE FAILURE. 1_ SEDIMENT ACCUMULATED UFSTREAm OF SEDIMENT CONTROL LOG SHALL BE REMOVED AS NEEDED TO MAINTAIN FUNCTIONALITY OF THE SMP, TYPICALLY WHEN DEPTH OF ACC mULATE SEDIMENTS IS APPROXIMATELY )4 OF THE HEIGHT OF THE SEDIMENT CONTROL LOG. 5. SEDIMENT CONTROL LOG SHALL BE REMOVED AT THE END OF CONSTRUCTION. COMPOST FROM COMPOST LOGS MAY BE LEFT IN PLACE AS LONG AS SAGS ARE P EMOVE L' AND THE AREA SEEDED. IF D I STU R E• EO AREAS EXIST AFTER REMOVAL: THEY SHALL BE COVERED WITH TOP SOIL, SEEDED AM) MULCHED OR OTHERWISE STABILIZED IN A MAN'S ER APPROVED RY THE LOCAL jURISDICTIO' . (DETAILS ADAFTM FROM TOWS,' OF PARKER, CGLC RADO, JEFFERSON CO;_ NTY, CGLC R4 G, CC'_ GL'S COUNTY, COLORADO, AK) CITY OF Ac,' k) AA, X'LONA:C', NCI AVAILABLE IN AL TOCAL)) NOTE: MANY JURISDICTIONS HAVE SMf} DETAILS THAT 'VARY FROM JDFLD STANDARD DETAILS. CONSD LT WITH LOCAL J URIS )ICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTE. SCL-6 Urban Drainage and Flood Control District November 2015 Urban Storm Drainage Criteria Manual Volume 3 Temporary Outlet Protection (TOP) Description Outlet protection helps to reduce erosion immediately downstream of a pipe, culvert, slope drain, rundown or other conveyance with concentrated, high - velocity flows. Typical outlet protection consists of riprap or rock aprons at the conveyance outlet. Appropriate Uses Outlet protection should be used when a conveyance discharges onto a disturbed area where there is potential for accelerated erosion due to concentrated flow. Outlet protection should be provided where the velocity at the culvert outlet exceeds the maximum permissible velocity of the material in the receiving channel. EC -8 orgria, 4 • r + ltr '4:04,444 J t A41/411t 'It akt_ M _ re aise Set was • :t Mgr • 00fr :kr -�rat . re.3 arm Photograph TOP -l. Riprap outlet protection. Note: This Fact Sheet and detail are for temporary outlet protection, outlets that are intended to be used for less than 2 years. For permanent, long-term outlet protection, see the Major Drainage chapter of Volume 1. Design and Installation Design outlet protection to handle runoff from the largest drainage area that may be contributing runoff during construction (the drainage area may change as a result of grading). Key in rock, around the entire perimeter of the apron, to a minimum depth of 6 inches for stability. Extend riprap to the height of the culvert or the normal flow depth of the downstream channel, whichever is less. Additional erosion control measures such as vegetative lining, turf reinforcement mat and/or other channel lining methods may be required downstream of the outlet protection if the channel is susceptible to erosion. See Design Detail OP -1 for additional information. Maintenance and Removal Inspect apron for damage and displaced rocks. If rocks are missing or significantly displaced, repair or replace as necessary. If rocks are continuously missing or displaced, consider increasing the size of the riprap or deeper keying of the perimeter. Remove sediment accumulated at the outlet before the outlet protection becomes buried and ineffective. When sediment accumulation is noted, check that upgradient BMPs, including inlet protection, are in effective operating condition. Outlet protection may be removed once the pipe is no longer draining an upstream area, or once the downstream area has been sufficiently stabilized. If the drainage pipe is permanent, outlet protection can be left in place; however, permanent outlet protection should be designed and constructed in accordance with the requirements of the Major Drainage chapter of Volume 2. Outlet Protection Functions Erosion Control Yes Sediment Control Moderate Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 TOP -1 EC -8 Temporary Outlet Protection (TOP) EXTEND R}PRAP TO HEIGHT OF 7 CULVERT CR NORMAL CHANNEL DEPTH, WHICHEVER IS LESS .3(Do) Do TEMPORARY OUTLET PROTECTION PLAN roe -NON -WOVEN GEC TEXTILE roe — 070 SECTION A tic Q JCl LKEYnro2xoso AROUND PLRIMEIE R ITAUL ! OP..,.1 . 'LMPORARY OUTLET PROTECTION I SIZING TABLE RtPRAP 0501 DIAMETER PIP DIAMETERM IN Do (CFS) 4 (INCHES) I APRON0: a( ETER, DISCHARGE. LE Nts i i. La (INCHES) I 8 12 18 2.5 I 5 5 10 5 10 .n .mow An IN. ....M. 10 20 30 40 30 I 40 I 50 f 60 1 10 13 sQ 16 23 26 16 26 26 30 • i 4 6 4 6 12 ' L 16 3 9 9 12 15 OP I TEMPORARY OUTLET PROTECTION (Th ? P TOP -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Te porary utlet r tecti ii (TOP) EC -8 TEMPORARY OUTLET PROTECTION INSTALLATION NOTES 1 SEE PLAN VIEW FOR -r °CAPON OF OUTLET PROTECTION -DIMENSIONS Of OUTLET PROTECTION 2 DETAIL IS INTENDED FOR PIPES WITH SLOPE ≤ 1 O ADDITIONAL EVALUATION OF RIPPAP SIZING AND OUTLET PROTECTION DIMENSIONS REQUIRED FOR STEEPER SLOPES 3 TEMPORARY OUTLET PROTECTION INFORMATION IS FOR OJTLLIS INTENDED TO BE UTILIZED LESS THAN 2 YEAPS TEMPORAPY OUTLET PROTECTION INSPECTION AND MAINTENANCE NOTE'S NSPECF BMPs EACH WOR}k3A: AND MAINTAIN THEM 'N EFFECTIVE OPERATING CONDITION t:MAINTENA'JCE OF 8'vMPs SHOULD BE PROACTIVE, NOT REACT'VE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY FO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION €NSPECT'ONS AND CORRECTIVE MEASURES SHOULD BE JOOCUMENTEDD THOROUGHLY, 3 WHERE BMPs HAVE FAILED REPAIR OR REPLACEMENT SHOULD BE INIT'ATED UPON DISCOVERY OF THE FAILURE MOTE, MANY JURISDICTIONS HAVE BIM DETAII S THAT VARY FROM LIDFC? STANDARD DFTAIH S CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD 8E USED WHEN DIFFERENCES ARE NOTED (OEFAlLS ADAPTED FROM AURORA COLORADO AND FREVOUS VERSION OF VOLUME 3 NOT AVkLAELE N AUTOCAD) November 2010 Urban Drainage and Flood Control District TOP -3 Urban Storm Drainage Criteria Manual Volume 3 Concrete Washout Area (CWA) MM -1 Description Concrete waste management involves designating and properly managing a specific area of the construction site as a concrete washout area. A concrete washout area can be created using one of several approaches designed to receive wash water from washing of tools and concrete mixer chutes, liquid concrete waste from dump trucks, mobile batch mixers, or pump trucks. Three basic approaches are available: excavation of a pit in the ground, use of an above ground storage area, or use of prefabricated haul - away concrete washout containers. Surface discharges of concrete washout water from construction sites are prohibited. Appropriate Uses Photograph CWA-l. Example of concrete washout area. Note gravel tracking pad for access and sign. Concrete washout areas must be designated on all sites that will generate concrete wash water or liquid concrete waste from onsite concrete mixing or concrete delivery. Because pH is a pollutant of concern for washout activities, when unlined pits are used for concrete washout, the soil must have adequate buffering capacity to result in protection of state groundwater standards; otherwise, a liner/containment must be used. The following management practices are recommended to prevent an impact from unlined pits to groundwater: • The use of the washout site should be temporary (less than 1 year), and • The washout site should be not be located in an area where shallow groundwater may be present, such as near natural drainages, springs, or wetlands. Design and Installation Concrete washout activities must be conducted in a manner that does not contribute pollutants to surface waters or stormwater runoff Concrete washout areas may be lined or unlined excavated pits in the ground, commercially manufactured prefabricated washout containers, or aboveground holding areas constructed of berms, sandbags or straw bales with a plastic liner. Although unlined washout areas may be used, lined pits may be required to protect groundwater under certain conditions. Do not locate an unlined washout area within 400 feet of any natural drainage pathway or waterbody or within 1,000 feet of any wells or drinking water sources. Even for lined concrete washouts, it is advisable to locate the facility away from waterbodies and drainage paths. If site constraints make these Concrete Washout Area Functions Erosion Control No Sediment Control No Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 CWA-1 MM -1 Concrete Washout Area (CWA) setbacks infeasible or if highly permeable soils exist in the area, then the pit must be installed with an impermeable liner (16 mil minimum thickness) or surface storage alternatives using prefabricated concrete washout devices or a lined aboveground storage area should be used. Design details with notes are provided in Detail CWA-1 for pits and CWA-2 for aboveground storage areas. Pre -fabricated concrete washout container information can be obtained from vendors. Maintenance and Removal A key consideration for concrete washout areas is to ensure that adequate signage is in place identifying the location of the washout area. Part of inspecting and maintaining washout areas is ensuring that adequate signage is provided and in good repair and that the washout area is being used, as opposed to washout in non -designated areas of the site. Remove concrete waste in the washout area, as needed to maintain BMP function (typically when filled to about two-thirds of its capacity). Collect concrete waste and deliver offsite to a designated disposal location. Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any contaminated soils, must be removed from the site to prevent on -site disposal of solid waste. If the wash water is allowed to evaporate and the concrete hardens, it may be recycled. Photograph ('WA -2. Prefabricated concrete washout. Photo Photograph C'W%-3. Earthen concrete washout. Photo courtesy of CDOT. courtesy of CDOT. CWA-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Concrete Washout Area (CWA) MM -1 CONCRETE WASHOUT AREA PLAN .,+ LNDISTURBED OR COMPACTED SOIL A\ VEHICLE TRACKING CONTROL 'SFE VTC DETAIL) OR O;HER STABLE RFACE COMPACTED BERM AROUND THE Pf Ri). ETEh >3 3' MIN } r 8 k 8 MIN SECTION A 2% SLOPE fi >3 VEHICLE. TRACKING CONTROL (SEE VTC OETA:I ) CWA-1 CONCRETE WASHOUT AREA CWA INSTALLATION NOTES SEE PLAN VIEW FOR -CWA INSTAL ATIOU LOCATION 2 DI) NOT IOCATF AN UINIINED CVA WITHIN 400' OF ANY NATURAL DRAINAGE PATHWAY OR WATERBODY DO NOT LOCATE WITHIN 1,000' OF ANY WELLS OR DRINKING WATER SOURCES IF SITE CONSThAINTS MAKE THIS INI-EASIRL E., OR HIGHLY PERMEABLE SOILS EXIST ON SITE, THE CNA MUST BE INSTALLED WTH AN IMPERMEABLE LINER (16 MIL MIN THICKNESS) OR SURFACE STORAGE ALTEPNATI\ES USING PREFABRICATED CONCRETE NASHOUT DEVICES OR A LINED ABOVE GROUND STORAGE ARE SHOULD BE ,JSED 3 THE GNA SHALL BE INSTALLED PRIOR r0 CONCRETE PLACEMENT Oh SITE 4 LWA SHALL 'NCLUOE A FLAT SUBSURFACE PeT THAT IS AT LEAST 8 BY 8 SLOPES LEADING OU'= or THE SUBSURFACE aIT SHALL BE 3 t OR FLATTER THE PIT SHALL BE AT LEAST 3' DEEP 5 BERM SURROUNDING SIDES AND BACK OF THE CWA SHALL HAVE MINIMUM HEIGHT OF 1' 6 VE!- CLE TRACNiNG PAD SHALL BE SLOPED 2% TOWARDS THE CWA 7 SIGNS SHALL BE PI ACED AT THE CONSTRUCTION ENTRAFef F AT THE CWA AND ELSEWHERE AS NECESSARY TO CLEARLY INDICATE THE LOCATION OF THE CWA TO OPERATORS OF CONCRETL TRUCKS AND PJMP RIGS 8 USE EXCAVATED MATERIAL FOR PERIMETER BERM CONSTRUCTION November 2010 Urban Drainage and Flood Control District CWA-3 Urban Storm Drainage Criteria Manual Volume 3 MM -1 Concrete Washout Area (CWA) CWA MAINTENANCE MOTES 1. INSPECT- UMPs EACH WORKDAY, AND MAINTAIN THEM EN ZEFECTIVL OPERATING CONDITION, MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACT►VE. INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN IMPS IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED I'HOROUG HLY. 3. WHERE BMPs HAVE FAILED. REPAIR OR REPLACEMENT SHOULD BE IN TRIED UPON DISCOVERY OF rHE FAILURE. 4. THE CWA SHALL BE REPAIRED, CLEANED, OR ENLARGED AS NECESSARY TO MAINTAIN CAPACITY FOR CONCRETE WASTE. CONCRETE MATERIALS. ACCUtMIULATED IN PIT, SHALL. BE REMOVED ONCE THE MATEREALS HAVE REACHED A DEPTH OF 2'. 5. CONCRETE WASHOUT WATER, WASTED P ECES OF CONCRETE AND ALL OTHER DEBRIS IN THE SUBSURFACE PIT SHALL HE TRANSPORTED FROM THE JOB SITE sN A WATER -TIGHT CONTAINER AND DISPOSED OF PROPERLY. 6. THE CWA SHALL REMAIN EN PLACE (Milt, ALL CONCRETE FOR NE PROJECT IS PLACED. 7. WHEN THE CWA IS REMOVED, COVER THE DISTURBED AREA WITH TOP SOIL, SEED AND MULCFnt OR OTHERWISE STABILIZED IN A MANNER APPROVED EY THE LOCAL JURISDICTION, (DETAIL ADAPTED FROM DOUGLAS COUNTY, COLORADO MD THE CITY OF PARKER, COLORACO, NCI AVAILABLE *i AUTOCAD). NOTE: MANY JURISDICTIONS HAVE SNAP DETAILS THAT VARY FROM UOFCD STANDARD DETAILS. CONSULT WITH LOCAL .111RJ DICTIONS AS TO WHICH DETAIL SHOULD aE USED WHEN DIFFERENCES ARE NOFED. CWA-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 SM-4 Vehicle Tracking Control (VTC) VTC-3. Stabilized Construction Entrance/Exit with Wheel Wash. This is an aggregate pad, similar to VTC-1, but includes equipment for tire washing. The wheel wash equipment may be as simple as hand-held power washing equipment to more advance proprietary systems. When a wheel wash is provided, it is important to direct wash water to a sediment trap prior to discharge from the site. Vehicle tracking controls are sometimes installed in combination with a sediment trap to treat runoff. Maintenance and Removal Inspect the area for degradation and replace aggregate or material used for a stabilized entrance/exit as needed. If the area becomes clogged and ponds water, remove and dispose of excess sediment or replace material with a fresh layer of aggregate as necessary. With aggregate vehicle tracking controls, ensure rock and debris from this area do not enter the public right-of-way. Remove sediment that is tracked onto the public right of way daily or more frequently as needed. Excess sediment in the roadway indicates that the stabilized construction entrance needs maintenance. Ensure that drainage ditches at the entrance/exit area remain clear. Photograph VTC-2. A vehicle tracking control pad with wheel wash facility. Photo courtesy of Tom Gore. A stabilized entrance should be removed only when there is no longer the potential for vehicle tracking to occur. This is typically after the site has been stabilized. When wheel wash equipment is used, be sure that the wash water is discharged to a sediment trap prior to discharge. Also inspect channels conveying the water from the wash area to the sediment trap and stabilize areas that may be eroding. When a construction entrance/exit is removed, excess sediment from the aggregate should be removed and disposed of appropriately. The entrance should be promptly stabilized with a permanent surface following removal, typically by paving. VTC-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Vehicle Tracking Control (VTC) i III• IIIIII.IINIIIIIIIIIIIIIIIIMMOIIIIAIW/.►!.,.WW WWE Modification: 1. Clarify NO recycled concrete. 2. Most common is 3" minus. 3. Fabric/liner optional. SIDEWALK OR OTHER PAVED SURFACE PUBLIC ROAD WAY INSTALL ROCK FLUSH '0TH OR BELOW TOP OF PAVEMENT 50 WO! MN.) SM-4 20 FOOT (w1DTH CAn SE LESS Fr =01ST. VEHICLES ARE PHYSICALLY CONFINED ON BOTH SIDES} 9 (MIN -) UNLESS OTHERWISE SPECIFIED , BY LOCAL JURISDCTION, USE L. CDOT SECT. 5703, AASHTQ ff 3 COARSE AGGREGATE OR 6'` MINUS ROCK NON -WOVEN GEOTEXJ1LE FABRIC BETWEEN SOIL AND ROCK UNLESS OTHERWISE SPEC MD BY LOCAL JUR[SDICTiON, USE COOL SECT. #703, AASIITO #3 COARSE AGGREGATE OR 6" MINUS ROCK 9' (Mist.) t NON —WOVEN GEOTEXTIL.E FABRIC coMPAcrM sugcRnCE -- SECTION A VTC: I AGGREGATE VEHICLE TRACKING CONTROL November 2010 Urban Drainage and Flood Control District VTC-3 Urban Storm Drainage Criteria Manual Volume 3 SM 4 Vehicle Tracking Co tr1 (VTC) PUBLIC ROADWAY NOTE WASH WATER MAY NOT CONTAIN CHEMICALS OR SOAPS WITHOUT OBTAINING A SEPARATE PERMIT DITCH TO CARRY WAS!. WATER ro SFDiMENT TRAP -%\ OR BASIN WASH RACK 6'7" MIN -t, REINFORCED CONCRETE RACK";�� (MAY SUBSTITUTE STEEL CATTLE J GUARD FOR CONCRETE RACK) ;2, DRAIN SPACE SECTION A VIC-2 AGGREGATE VEHICLE TRACKING CONTROL WITH WASH RACK VTC-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Vehicle Tracking Control (VTC) EXISTING PAVED ROADWAY %-A/ cc° sa, / e;r,O Pail cA4..t ,_,Nfrs (t,cir;‘;&ts, c>""%ek- -%t Po y o eigk ' c :‘ `. / CONSTRUCTION MATS, WOVEN OR TURF REINFORCEMENT STRAP MAT (TRM) CONNECTORS a CONsrnucTnoN N1AT END 1 OVERLAP INTERLOCK WITH RESTR:GI• Oc�NST. VEHICLE ACCESS TO SIDES 01 MAT \ STRAP CONNECTORS • N SM-4 DiSTUReED AREA, CONSTRUCTION SITE, STA6L ILEU STORAGE AREA OR STAGING AREA CONSTRUCTION MATS, WOVEN OR TRW - r. SPIES OR STAKES la" lJN F TRM ENO OVER .AP wr f -t SPiKCS OR STAKES 20' F OR /1/27; RLQUIRCO TO ACCOMMODATE ANTICIPATED TRAFFIC (WIDTH CAM BE LESS iF CONST. . VEHICLES ARE PHYSICALLY CONFINED ON BOTH SIDES) VTC-3, VEHICLE TRACKINGWJ CONSTRUCTION MST OR TURF REINFORCE1ENT MAT (TRM) November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 VTC-5 SM-4 Vehicle Tracking Control (VTC) STASILIZED CONSTRUCTION ENTRANCE/EXIT INSTALLATION NOTES 1 SEC PJ4N VIEW FOR —c OCATION OF CONSTRUCTION FNTRANIC£(S)/EXIT(S) -TYPE OF CONSTRUCTION ENTRANCE(S1/EXITS(S; (WITH/WITHOUT WHEEL WASH, CONSTRUCTION MAT OR TRIG) 2 CONSTRUCTION MAT OR TRM STABIL ZED CONSTPUCTIOIJ ENTRANCES ARE ONL/ TO BE USED ON SHORT DURAT'ON PROJECTS (TYPICAL t Y RANGING FROM A WEEK TO A MONTH) WHERE THERE WILL BE L:1+ITED VEHICULAR ACCESS 3 A STACILIZEG CONSTRUCTION ENTRANCE/EMT SHALL BE L 4GATLD AT ALL ACCESS POINTS WHERE VEHICLES ACCESS THE CONSTRUCTION SITE FROM PAVED RIGHT -OF WAYS STABILIZED CONSTRUCTION ENTRANCE/EXIT SHALL BE INSTAL LED PRIOR TO ANY LAND DISTURBING ACTIVIIILS 5 A NON -WOVEN GEOTEXTILE FABRIC SHAI L BE PLACED UNDER THE STABILIZED CONSTRUCTION ENTRANCE/EXIT PRICR TO THE PLACEMENT OF ROCK 6 UNLESS OTHERWISE SPECIFIED B/ LOCAL JIJPISDICTION, ROCK SHALL CONSIST OF DOT SECT 1/7U3 AASHTO {#3 COARSE AGGREGATE OR 6' (MINUS) ROCK STABILIZED CONSTRUCTION ENTRANCE/EXIT MAINTENANCE NOTES 1 INSPECT t3Mps EACH WORKOA', AND MAINTAIN THEM ,N EFFFCTI\c OPERATING C'ONDIT ON MAINTENANCE OF 841Ps SHOULD BE PROACTIVE NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 s1OURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION AND PERFORM NECESSARY MAINTENANCC 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs N EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE ❑OCUMENTCD TIIOFOUCIILY 3 WHERE BMPs HAVE FAILED REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCO\ERY OF THE FAILURE 4 ROCK SHALL BE REAPPLIED OR REGRADED AS NECESSARY TO THE STABILIZED ENTRANCE/EXIT TC MAINTAIN A CONSISTENT DEPTH 5 SEDIMENT TRACED ONTO PANED ROADS IS TO BE REi,4OVEU THROUGHOUT THE DAY AND AT rHE END OF THE DAY BY SHOVELING OR SWEEPING SEDIMENT MA) NOT RF WASHED DOWN STORM SEWER DRAINS NOTE MANY JURISDICTIONS HAVC BMP DETAILS THAT «ARY FROM UDFCD STANDAR& DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED (nETAILS AOAPtC'7 FROM CITY Or BROOLFtC'C COL7Rl.00 NOT AVAILABLE IN FUTOCAPI VTC-6 Urban Drainage and Flood Contiol District Novembei 2010 Urban Storm Drainage Criteria Manual Volume 3 Stabilized Staging Area (SSA) Description A stabilized staging area is a clearly designated area where construction equipment and vehicles, stockpiles, waste bins, and other construction -related materials are stored. The contractor office trailer may also be located in this area. Depending on the size of the construction site, more than one staging area may be necessary. Appropriate Uses Most construction sites will require a staging area, which should be clearly designated in SWMP drawings. The layout of the staging area may vary depending on the type of construction activity. Staging areas located in roadways due to space constraints require special measures to avoid materials being washed into storm inlets. SM-6 Design and Installation Photograph SS:1-1. Example of a staging area with a gravel surface to prevent mud tracking and reduce runoff. Photo courtesy of Douglas County. Stabilized staging areas should be completed prior to other construction activities beginning on the site. Major components of a stabilized staging area include: ■ Appropriate space to contain storage and provide for loading/unloading operations, as well as parking if necessary. ■ A stabilized surface, either paved or covered. with 3 -inch diameter aggregate or larger. ■ Perimeter controls such as silt fence, sediment control logs, or other measures. ■ Construction fencing to prevent unauthorized access to construction materials. ■ Provisions for Good Housekeeping practices related to materials storage and disposal, as described in the Good Housekeeping BMP Fact Sheet. ■ A stabilized construction entrance/exit, as described in the Vehicle Tracking Control BMP Fact Sheet, to accommodate traffic associated with material delivery and waste disposal vehicles. Over -sizing the stabilized staging area may result in disturbance of existing vegetation in excess of that required for the project. This increases costs, as well as requirements for long-term stabilization following the construction period. When designing the stabilized staging area, minimize the area of disturbance to the extent practical. Stabilized Staging Area Functions Erosion Control Yes Sediment Control Moderate Site/Material Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SSA -1 SM-6 Stabilized Staging Area (SSA) Minimizing Long -Term Stabilization Requirements ■ Utilize off -site parking and restrict vehicle access to the site. ■ Use construction mats in lieu of rock when staging is provided in an area that will not be disturbed otherwise. ■ Consider use of a bermed contained area for materials and equipment that do not require a stabilized surface. ■ Consider phasing of staging areas to avoid disturbance in an area that will not be otherwise disturbed. See Detail SSA -1 for a typical stabilized staging area and SSA -2 for a stabilized staging area when materials staging in roadways is required. Maintenance and Removal Maintenance of stabilized staging areas includes maintaining a stable surface cover of gravel, repairing perimeter controls, and following good housekeeping practices. When construction is complete, debris, unused stockpiles and materials should be recycled or properly disposed. In some cases, this will require disposal of contaminated soil from equipment leaks in an appropriate landfill. Staging areas should then be permanently stabilized with vegetation or other surface cover planned for the development. SSA -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stabilized Staging Area (SSA) • vma.. n.... V... w.._.................r. I C K / v�. J .. CONSTRUCTION SITE ACCESS STABILIZED CONSTRUCTION ENTRANCE (SEE DETAILS VTC --1 TO vrc-3) LA 1 I 1 /1 Sr ,r cr - -- -,- SF; CF M LON S Tet CQN'S 1-RUOC}N VE H EC k.E PARKING (IF NUDE?), 4 !i M L Y A C n y ti 't; 'J.. "- v MATERIAL STOOAGE AREA V ` SM-6 CONsTfru CTION TRAILERS MIN. THICKNESS GRANULAR MATERIAL SF/CF SF/CF --- ma`'`r---- SILT FENCE OR CONSTRUCTION FENCING AS NEEDED EXISTING ING ROADWAY SSA -1. STABILIZED STACINC AREA £n,�.. .. A.'A A t4 5 ALLATLON SOT H 1. SEE PLAN VIEW FOR LOCATION OF STAGING ARL,A(S). -CONTRACTOR MAY ADJUST LOCATION AND SIZE OF STAGING AREA WITH APPROVAL FROM THE LOCAL JURISDICTION. 2. STABILIZED STAGING AREA SHOULD BE APPROPRIATE FOR THE NEEDS OF THE SITE. OVERS! ZING RESULTS IN A LARGER AREA TO STABIU ZE FOLLO `; N C CONSTRUCTION. 3. STAGING AREA SHALL SE S tABtLIZED PRIOR TO OTHER OPERATIONS ON THE SITE. 4. TAE STAB€LIZED STAC:NG AREA SHALL CONSIST OF A MINIMUM 3" THICK GRANULAR MATERIAL. 5. UNLESS OTHERWISE SPE_CtFIED 9Y LOCAL JURISDICTION, ROCK SHALL CONSIST OF DOT SECT. #703, AASHTO l3 COARSE AGGREGATE OR 6" (M€NUS) ROCK. 6. ADDITIONAL PERIKIETEI'R BMPs MAY BE REQUIRED INCLUDING BUT NOT LIMITED TO SILT FENCE AND CONSTRUCTION FENCING. STABILIZED STAGING AREA MA NTENANCE NO T ES 1. INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF SMPs SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMPs AS SOON AS POSSIBLE (AND- ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAI CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2_ FREQUENT OBSERVATIONS AND MA€NTEN.ANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION, INSPEGDONS AND CORK ECTPVE. MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. ROCK SHALL BE REAPPLIED OR REGRADED AS NECESSARY IF RUTTING OCCURS OR UNDERLYING SUBGRADE BECOMES EXPOSED. November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SSA -3 SM-6 Stabilized Staging Area (SSA) STABILIZED STAGING .AREA MAINTENANCE NOTES 5 STABILIZED STAGING AREA SHALL BE ENLARGED IF NECESSARY TO CONTAIN PARKING, STORAGE, AND UNLOADING/LOADING OPERATIONS 6 THE STABIL.ZED STAGING AREA SHAL_ BE REMOVED AT THE END OF CONSTRUCTJON THE GRANULAR MATERIAL SHALL RE REMOVED OR IF APPROVED BY THE LOCAL JURISDICTION, USED ON STE, AND THE AREA COVERED WITH TOPSOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED IN A MANNER APPROVED BY LOCAL JURISDICTION I•,OTF, MANY MUNICIPALITIES PROHIBIT THE USE OF RECYCLED CONCRETE AS GRANULAR MATERIAL FOR STABILIZED STAGING AREAS DUE TO DFFEICULTIES MTh RE-ESTAtBLIShMvIENT OF VEGETATION IN AREAS WHERE RECYCLED CONCRETE WAS PLACED NOTE MANY JURISDICTIONS HAVE BNIP DETAILS THAT VARY FROM UDf=CO STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS 10 WHICH DLTAIL SHOULD BE USED WHEN DIFFERENCES ARE NOrEO (OETMLS ADAPT£O FROG( BOJGLk5 Louvre COLORPfO NO1 AVAILABLE IN AUTOGAA)) SSA -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Sediment Basin (SB) Description A sediment basin is a temporary pond built on a construction site to capture eroded or disturbed soil transported in storm runoff prior to discharge from the site. Sediment basins are designed to capture site runoff and slowly release it to allow time for settling of sediment prior to discharge. Sediment basins are often constructed in locations that will later be modified to serve as post -construction stormwater basins. Appropriate Uses Most large construction sites (typically greater than 2 acres) will require one or more sediment basins for effective management of construction site runoff On linear construction projects, sediment basins may be impractical; instead, sediment traps or other combinations of BMPs may be more appropriate. SC -7 Photograph SB-1. Sediment basin at the toe of a slope. Photo courtesy of WWI.. Sediment basins should not be used as stand-alone sediment controls. Erosion and other sediment controls should also be implemented upstream. When feasible, the sediment basin should be installed in the same location where a permanent post - construction detention pond will be located. Design and Installation The design procedure for a sediment basin includes these steps: ■ Basin Storage Volume: Provide a storage volume of at least 3,600 cubic feet per acre of drainage area. To the extent practical, undisturbed and/or off -site areas should be diverted around sediment basins to prevent "clean" runoff from mixing with runoff from disturbed areas. For undisturbed areas (both on -site and off -site) that cannot be diverted around the sediment basin, provide a minimum of 500 ft'/acre of storage for undeveloped (but stable) off -site areas in addition to the 3,600 ft'/acre for disturbed areas. For stable, developed areas that cannot be diverted around the sediment basin, storage volume requirements are summarized in Table SB-1. ■ Basin Geometry: Design basin with a minimum length -to -width ratio of 2:1 (L:W). If this cannot be achieved because of site space constraints, baffling may be required to extend the effective distance between the inflow point(s) and the outlet to minimize short-circuiting. ■ Dam Embankment: It is recommended that embankment slopes be 4:1 (H:V) or flatter and no steeper than 3:1 (H:V) in any location. Sediment Basins Functions Erosion Control No Sediment Control Yes Site/Material Management No August 2013 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SB-1 SC -7 Sedir, ent Basin (SB) • Inflow Structure For concentrated flow entering the basin, provide energy dissipation at the point of inflow Table SB-1 Additional Volume Requirements for Undisturbed and Developed Tributary Areas Draining through Sediment Basins Imperviousness (%) Additional Storage Volume (ft3) Per Acre of Tributary Area Undeveloped 500 10 800 20 ` 1230 30 1600 40 2030 50 2470 60 2980 70 3560 80 4360 90 5300 100 6460 • Outlet Works The outlet pipe shall extend through the embankment at a minimum slope of 0 5 percent Outlet works can be designed using one of the following approaches o Riser Pipe (Simplified Detail) Detail SB-1 provides a simplified design for basins treating no more than 15 acres o Orifice Plate or Riser Pipe Follow the design criteria for Full Spectrum Detention outlets in the EDB Fact Sheet pi ovided in Chapter 4 of this manual for sizing of outlet perforations with an emptying time of approximately 72 hours In lieu of the trash rack, pack uniformly sized 1'/z - to 2 -inch gravel in front of the plate or surrounding the riser pipe This gravel will need to be cleaned out frequently during the construction period as sediment accumulates within it The gravel pack will need to be removed and disposed of following construction to reclaim the basin for use as a permanent detention facility If the basin will be used as a permanent extended detention basin foi the site, a trash rack will need to be installed once contributing drainage areas have been stabilized and the gravel pack and accumulated sediment have been removed o Floating Skimmer If a floating skimmer is used, install it using manufacturer's recommendations Illustration SB-1 provides an illustration of a Faircloth Skimmer Floating OutletTM, one of the more commonly used floating skimmer outlets A skimmer should be designed to release the design volume in no less than 48 hours The use of a floating skimmer outlet can increase the sediment capture efficiency of a basin significantly A floating outlet continually decants cleanest water off the surface of the pond and releases cleaner watei than would discharge from a perforated riser pipe or plate SB-2 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Sediment Basin (SB) .. _ �V1 • SC -7 Illustration SB-l. Outlet structure for a temporary sediment basin - Faircloth Skimmer Floating Outlet. illustration courtesy of J. W. Faircloth & Sons, Inc., FairclothSkimmer.com. • Outlet Protection and Spillway: Consider all flow paths for runoff leaving the basin, including protection at the typical point of discharge as well as overtopping. o Outlet Protection: Outlet protection should be provided where the velocity of flow will exceed the maximum permissible velocity of the material of the waterway into which discharge occurs. This may require the use of a riprap apron at the outlet location and/or other measures to keep the waterway from eroding. o Emergency Spillway: Provide a stabilized emergency overflow spillway for rainstorms that exceed the capacity of the sediment basin volume and its outlet. Protect basin embankments from erosion and overtopping. If the sediment basin will be converted to a permanent detention basin, design and construct the emergency spillway(s) as required for the permanent facility. If the sediment basin will not become a permanent detention basin, it may be possible to substitute a heavy polyvinyl membrane or properly bedded rock cover to line the spillway and downstream embankment, depending on the height, slope, and width of the embankments. August 2013 Urban Drainage and Flood Control District SB-3 Urban Storm Drainage Criteria Manual Volume 3 SC -7 Seth n y. ent sin (S ) Maintenance and Removal Maintenance activities include the following o Dredge sediment from the basin, as needed to maintain BMP effectiveness, typically when the design storage volume is no more than one-third filled with sediment e Inspect the sediment basin embankments for stability and seepage ® Inspect the inlet and outlet of the basin, repair damage, and remove debris Remove, clean and replace the gravel around the outlet on a regular basis to remove the accumulated sediment within it and keep the outlet functioning ® Be aware that removal of a sediment basin may require dewatermg and associated permit requirements ® Do not remove a sediment basin until the upstream area has been stabilized with vegetation Final disposition of the sediment basin depends on whether the basin will be converted to a permanent post -construction stormwater basin or whether the basin area will be returned to grade For basins being converted to permanent detention basins, remove accumulated sediment and reconfigure the basin and outlet to meet the requirements of the final design for the detention facility If the sediment basin is not to be used as a permanent detention facility, fill the excavated area with soil and stabilize with vegetation SB-4 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Sediment Basin (SB) RIPRAP PAD HOLE DIAMETER, D EL. 03.00 SINGLE COLUMN F FIVE HOLES* SCHEDULE 4.0 PVC OR GREATER EL. 00.00 EXCAVATION LIABANKMENT MATERIAL INLETS 10 SEDIMENT BASIN SHALL ENTER AT FURTHEST DISTANCE TO OUTLE1 AND SHALL CONSIST Or A TEMPORARY SLOPE DRAIN BO -TOM N- NGTH 00 01 02 03 4-04 1" TO 2" CRUSE -ED ROCK SEDIMENTBASIN PLAN *EXCEPT WHERE THE HOLES EXCEED 1" DIAMETER, THEN UP TO TWO COLUMNS OF SAME SIZED HOLES MAY BE USED D =-3" RIPRA? TYPE L. (SEE TABLE MOW -7, MAJOR DRAINAGE, VOL... 1) D•=eirtillsoP> .ra-ibition, RISER PIPE r" PVC '`''atintiratitatib 4 I RIPRAP BEDDING SECTION A CL CREST LENGTH EL 03.00 AT CREST D5O=Q" RI PRAP TYPE L SPILLWAY 4 "witursivia. maps gaga 12 SC -7 12" August 2013 Urban Drainage and Flood Control District SB-5 Urban Storm Drainage Criteria Manual Volume 3 SC -7 Sediment Basin (SB) TALLE. SEI—I SIZING INFORMATION fOR STANDARD SEDIMENT BASIN upstream Drainage Area rounded to nearest acre), (ac) Basin Bottom Wrdthl SpIIIway Crest 1 (w), (rt) Length (CL;, (ft) Hole Drameter 04D), (.n) I 2 12 ii 2 21 3 %i,2 1418 3 2E 5 1x 4 33 Ya 1 6 51s 5 38 Y2 8 2132 6 43 8 2352 7 47 Y4 11 ' 232 8 51 12 23.] 2 8 55 i3 r'$ I 58 3'4 15 le, Ii fit I6 3)52 12 64 1S 1 13 67 J IS 1 3Ss 14. 10 Y2 21 1 3is 15 73 Y4 22 I 3i SED MENT RASI1 INSTALLATION NOTES SEE PLAN VIEW FOR LOCATION Of SEDIMENT BASIN -TYPF Of BASIN (STANDARD BASIN OR NONSTANDARD BASIN) -FOR STANDARD BASIN, BOTTOM WIDTH W, CREST LENGTH CL, AND HOLE DIAMETER, HO -cOR NONSTANDARD BASIN SFE CONSTRUCTION DRAWINGS FOR DESIGN OF BASIN INCLUDING RISER IJEICHT H NUMBER OF COLUMNS N HOLE DIAMETER HO AND PIPE 0AMETER 0 2 FOR STANDARD BASIN, BOTTOM DIMENSON MAY BE MODIFIED AS LONG AS BOTTOM AREA 1S NOT REDUCED 3 SEDIMENT BASINS SHALL BE INSTALLED PRIOR TO ANY OTHER LAND -DISTURBING ACTIVITY THAT RFT IFS ON ON BASINS AS AS A STORM HATER CONTROL 4 EMBANKMENT MATERIAL SHALL CONSIST OF SOIL FREE OF DEBRIS, ORGANIC MATERIAL, AND ROCKS OR CONCRETE GREATER THAN 3 INCHES AND SHALL HAVE A MINIMUM OF 15 PERCENT BY WEIGHT PASSING THE NO 200 SIEVE 5 EMBANKMENT MATERIAL SHALL BE COMPACTED TO AT LEAST S5 PERCEi4T OF MAXIMUM DENCITY IN ACCORDANCE W TH ASTM Ong$ 6 PIPE SCH 40 OR GREATER ShALL BE USED 7 1 HC DUALS SHOWN ON THESE SHEETS PERTAIN TO STANDARD SEDIMENT BASINS) FOR DRAINAGE AREAS LESS THAN 15 ACRES SEE CONSTRUCTION DRAWINGS FOR EMBANKMENT, STORAGE VOLUME, SPILLWAI OUTLET, AND OUTLET PROTECTION DETAILS FOR ANY SEDIMENT BASIN S) THAT HAVE BEEN INDIVIDUALLY DESIGNED FOR DRAINAGE AREAS LARGER THAN 15 ACRES SB-6 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Sediment Basin (SB) SC -7 S C M EN I WJJ ENA INSPECT AMPS EACH WORKDAY, AND MA N'A1N THEM IN EFFECTIVF OPERATING CONDITION. MAINTENANCE OF BMPs SHOULD BE PROACTIVE, E Nor REACTIVE. INSPECT BMPs AS SOON AS POSSI LE (AND ALWAYS WITHIN 24 HO,iRS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PEPrcRM NECCSSARY MAINTENANCE. _ FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN eMPs IN EFFECTIVE OPERATING CONDITION. INSPECTIONS AND CORRECTIVE MEASURES SHOULD EE DOCUMENTED THOROUGHLY. 3. WHERE BMPs HAVE FAILED, FEPA R OR REPLACE MEN1 SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEGJMENT ACCUMULATED IN BASIN HE REMOVED AS NEEDED TO MA'(TAIN BMP EFFECTIVENESS. TYPICALLY WHEN SEDIMENT DEPTH REACHES ONE FOOT (E.E., TWO FEET BELOW THE SRLLWAt CREST). 5. SEDIMENT BASINS ARE TO REMAIN iN PLACE UNTIL THE UPSTREAM DISTURBED AREA 1S STABILIZED AND GRASS COVER IS ACCEP I ED EY THE LOCAL JURISDICTION. 6. WHEN SEDIMENT BASINS ARE REMOVED, ALL lI SrURBED AREAS S1 -ALL BE COVERED f1€TH TOPSOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED %ED AS APPROVED BY LOCAL JURISDIC1EON. (OOETMiLS A0A9ED FROM D0uGLh.S COuNne, COLORieo) NQJj.;. MANY JURISDEC TIONS HAVE BtAP DETAILS THAT VARY FROM UDFCO STANDARD DETAILS. CONSULT WITH LOCAL JuRrSDICT1CNS. AS TO WHCH DE TAI'_ SHOULD EE USED WHEN DIFFERENCES ARE NOTED. August 2013 Urban Drainage and Flood Control District S13-7 Urban Storm Drainage Criteria Manual Volume 3 NONSTRUCTURAL BMPs Surface Roughening (SR) Description Surface roughening is an erosion control practice that involves tracking, scarifying, imprinting, or tilling a disturbed area to provide temporary stabilization of disturbed areas. Surface roughening creates variations in the soil surface that help to minimize wind and water erosion. Depending on the technique used, surface roughening may also help establish conditions favorable to establishment of vegetation. Appropriate Uses Surface roughening can be used to provide temporary stabilization of disturbed areas, such as when revegetation cannot be immediately established due to seasonal planting limitations. Surface roughening is not a stand-alone BMP, and should be used in conjunction with other erosion and sediment controls. EC -1 Photograph SR -1. Surface roughening via imprinting for temporary stabilization. Surface roughening is often implemented in conjunction with grading and is typically performed using heavy construction equipment to track the surface. Be aware that tracking with heavy equipment will also compact soils, which is not desirable in areas that will be revegetated. Scarifying, tilling, or ripping are better surface roughening techniques in locations where revegetation is planned. Roughening is not effective in very sandy soils and cannot be effectively performed in rocky soil. Design and Installation Typical design details for surfacing roughening on steep and mild slopes are provided in Details SR -1 and SR -2, respectively. Surface roughening should be performed either after final grading or to temporarily stabilize an area during active construction that may be inactive for a short time period. Surface roughening should create depressions 2 to 6 inches deep and approximately 6 inches apart. The surface of exposed soil can be roughened by a number of techniques and equipment. Horizontal grooves (running parallel to the contours of the land) can be made using tracks from equipment treads, stair -step grading, ripping, or tilling. Fill slopes can be constructed with a roughened surface. Cut slopes that have been smooth graded can be roughened as a subsequent operation. Roughening should follow along the contours of the slope. The tracks left by truck mounted equipment working perpendicular to the contour can leave acceptable horizontal depressions; however, the equipment will also compact the soil. Surface Roughening Functions Erosion Control Yes Sediment Control No Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SR -1 EC -1 Surface oughening (SR) Maintenance and Removal Care should be taken not to drive vehicles or equipment over areas that have been surface roughened Tire tracks will smooth the roughened surface and may cause runoff to collect into rills and gullies Because surface roughening is only a temporary control, additional treatments may be necessary to maintain the soil surface in a roughened condition Areas should be inspected for signs of erosion Surface roughening is a temporary measure, and will not provide long-term erosion control SR -2 Urban Drainage and Flood Conti ol District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Surface Roughening (SR) EC -1 2" 1O 4" DEEP . .. .w ..+ •...."..r v. ' .. 7 1 TRACKING OF IMPRINTING r • FURROWS 2" TO 41' DEEP Wi T H 6" MAXIMUM SPACING PARALLEL 10 CONTOURS SR 1. SURFACE ROUGHENING FOR STEEP SLOPES O.1 OR srEEPER) SCAR irYING OR TItl LNG „car' L. 4" T' 6" z DEEP SR -02. SURFACE ROUGHENING FOR LOW SLOPES (LESS THAN 3:1) ROUGHENED ROWS SHALL RE 4" TO 6" DEEP 'OATH 6'MAXU4 UM SPACING PARALLEL TO CONTOURS November 2010 Urban Drainage and Flood Control District SR -3 Urban Storm Drainage Criteria Manual Volume 3 EC -1 Surface RI ugheni I, g (SR) SURFACE ROUGHENING INSTALLATION NOTES i SEE PLAN VIEW FOR —LOCATION(5) OF SURFACE ROUGrIFNING 2 SURFACE ROUGHENING SHALL BE PROVIDED PROMPTLY A,FTr_R GOMPLE1ION 0- HNISHtD GRADING ;FOR AREAS NOT RECEIVING TOPSOIL) OR PRIOR TO TOPSOIL PLACEMENT OR ANY FORECASTED RAIN EVENT 3 AREAS WHERE BUILDING FOUIeDATIONS, PAVEMENT, CR SOD WIC L BE PLACED WITHOUT DELAY IN THE CONSTRUCTION SEQUENCE, SURFACE ROUGHENING IS NOT REQUIRED 4 DISTURBED SURFACES SHALL BE ROtJG-IENED USING RIPPING OR TILLING EQUIPMENT ON -HE CONIOUR OR TRACVING UP AND DOWN A SLOPE USING EQUIPMENT TREADS 5 A FARMING OISK SHAt L NOT BE USED FOR SURFACE ROUGH FNIU3 _URrALE ROUGHENING MAIN rLNANLL NOTta 1 INSPECT BMPs FACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONOIT`ON MAINTENANCE Of BMPs SHOULD BE PROACTIVE NOT REACT,VE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STOR'II THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 c-REQUEN` OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BM Pa IN EFFECTIVE OPERATING CONDITION INSPLCTiONS AM) CORRECINC MEA5uRES SHOULD BE JOCU DENTED T'IOROLJCPLY 3 WHERE BMPs HAVE FAILED, REPLcR OR REPLACE UPON OISOO'IERY OF THE FAILURE 4 VEHICLES AND EQUIPMENT SHALL NOT BE DRIVEN OVER AREAS TWAT HAVE BEEN SURFACE ROUGHENED 5 IN NON -TURF GRASS FINISHED AREAS SECDING AND MULCHING SHALL TAKE PLACE DIRECTLY OVER SURFACE ROUGHENED AREAS WITHOUT FIRST SMOOTHING OUT THE SURFACE 6 IN AREAS NOT SEEDED AND MULCHED AFTER SURFACE ROUGHENING, SURFACES SHALL. BE RE ROUGHENED AS NECESSARY TO MANIAIN GROOVE DEPTH AND SMOOTH OVER RILL EROSION (DETAILS ADAPTED FROM TOWN OF PARKER CO,ORA00 NOT AuAILABLE IR AUTOCAD} NQTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS, CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED SR -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products (RECP) EC -6 Description Rolled Erosion Control Products (RECPs) include a variety of temporary or permanently installed manufactured products designed to control erosion and enhance vegetation establishment and survivability, particularly on slopes and in channels. For applications where natural vegetation alone will provide sufficient permanent erosion protection, temporary products such as netting, open weave textiles and a variety of erosion control blankets (ECBs) made of biodegradable natural materials (e.g., straw, coconut fiber) can be used. For applications where natural vegetation alone will not be sustainable under expected flow conditions, permanent rolled erosion control products such as turf reinforcement mats (TRMs) can be used. In particular, turf reinforcement mats are designed for discharges that exert velocities and sheer stresses that exceed the typical limits of mature natural vegetation. Appropriate Uses Photograph RECP-l. Erosion control blanket protecting the slope from erosion and providing favorable conditions for revegetation. RECPs can be used to control erosion in conjunction with revegetation efforts, providing seedbed protection from wind and water erosion. These products are often used on disturbed areas on steep slopes, in areas with highly erosive soils, or as part of drainageway stabilization. In order to select the appropriate RECP for site conditions, it is important to have a general understanding of the general types of these products, their expected longevity, and general characteristics. The Erosion Control Technology Council (ECTC 2005) characterizes rolled erosion control products according to these categories: • Mulch control netting: A planar woven natural fiber or extruded geosynthetic mesh used as a temporary degradable rolled erosion control product to anchor loose fiber mulches. • Open weave textile: A temporary degradable rolled erosion control product composed of processed natural or polymer yarns woven into a matrix, used to provide erosion control and facilitate vegetation establishment. • Erosion control blanket (ECB): A temporary degradable rolled erosion control product composed of processed natural or polymer fibers which are mechanically, structurally or chemically bound together to form a continuous matrix to provide erosion control and facilitate vegetation establishment. ECBs can be further differentiated into rapidly degrading single -net and double -net types or slowly degrading types. Rolled Erosion Control Products Functions Erosion Control Yes Sediment Control No Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 RECP-1 oiled Erosion Control Products (RECP) EC -6 Table RECP-1 ECTC Standard Specification for Temporary Rolled Erosion Control Products (Adapted from Erosion Control Technology Council 2005) Product Description Slope Applications" Channel Applications" Minimum Tensile i Strength Expected Longevity Maximum Gradient z s C Factor Max Shear Stress3 4 6 Mulch Control Nets 5 1 (H V) <0 l0 @ 5 1 0 25 lbs/ft2 (12 Pa) 5 Ibs/ft (0 073 kN/m) Up to 12 months Netless Rolled Erosion Contiol Blankets 4 1 (H V) <0 10 @ — 4 1 0 5 lbs/ft2 (24 Pa) 5 lbs/ft (0 073 kN/m) Single -net Erosion Control Blankets & Open Weave Textiles 3 1 (H V) <0 15 @ 3 1 1 5 lbs/ft2 (72 Pa) 50 lbs/ft (0 73 kN/m) Double -net Erosion Control Blankets 2 1 (H V) <0 20 @ 2 1 1 75 lbs/ft2 (84 Pa) 75 lbs/ft (1 09 kN/m) Mulch Control Nets 5 1 (H V) <0 10 @ 5 1 0 25 lbs/ft2 (12 Pa) 25 lbs/ft (0 36 kN/m) 24 months Erosion Control Blankets & Open Weave Textiles (slowly degrading) 1 5 I (H V) _<0 25 @ 2 00 lbs/ft2 1 5 1 (96 Pa) 100 lbs/ft (1 45 kN/m) 24 months Erosion Control Blankets & Open Weave Textiles 1 1 (H V) <0 25 @ 2 25 lbs/ft2 — 1 1 (108 Pa) 125 lbs/ft (1 82 kN/m) 36 months * C Factor and shear stress for mulch control nettings must be obtained with netting used in conjunction with pre -applied mulch material (See Section 5 3 of Chapter 7 Construction BMPs for more information on the C Factor) ' Minimum Average Roll Values, Machine direction using ECTC Mod ASTM D 5035 2 C Factor calculated as ratio of soil loss from RECP p►otected slope (tested at specified or greater gradient, H V) to ratio of soil loss from unprotected (control) plot in large-scale testing 3 Required minimum shear stress RECP (unvegetated) can sustain without physical damage or excess erosion (> 12 7 mm (0 5 in) soil loss) during a 30 -minute flow event in large-scale testing 4 The permissible shear stress levels established for each performance category are based on historical experience with products characterized by Manning's roughness coefficients in the range of 0 01 - 0 05 5 Acceptable large-scale test methods may Include ASTM D 6459, or other independent testing deemed acceptable by the engineer 6 Per the engineer's discretion Recommended acceptable large-scale testing protocol may include ASTM D 6460, or other independent testing deemed acceptable by the engineer November 2010 Urban Drainage and Flood Control District RECP-3 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) Table RECP-2. ECTC Standard Specification for Permanent' Rolled Erosion Control Products (Adapted from: Erosion Control Technology Council 2005) Product . Slope Applications Channel Applications pp Type 6525 exposure). TRMs . 2 ASTM 5 inches and with c h D es 4355 a minimum (6.35 UV stability mm) (500 of hours per thickness ASTM 80% of D Maximum Gradient I Shear Maximum Stress4'5 Minimum Strength 3 Tensile 0.5:1 H:V ( ) 6.0 lbs/ft2(288 Pa) 125 lbs/ft kN/m) (1.82 per 0.5:1 (H:V) . 8.0 lbs/ft` (384 Pa) 150 lbs/ft kN/m) (2.19 0.5:1 ( H:V ) 10.0 lbs/ft� 480 Pa ( ) 175 lbs/ft kN/m) (2.55 For TRMs containing degradable components, all property values must be obtained on the non- degradable portion of the matting alone. 2 Minimum Average Roll Values, machine direction only for tensile strength determination using ASTM D 6818 (Supersedes Mod. ASTM D 5035 for RECPs) Field conditions with high loading and/or high survivability requirements may warrant the use of a TRM with a tensile strength of 44 kN/m (3,000 lb/ft) or greater. 4 Required minimum shear stress TRM (fully vegetated) can sustain without physical damage or excess erosion (> 12.7 mm (0.5 in.) soil loss) during a 30 -minute flow event in large scale testing. 5 Acceptable large-scale testing protocols may include ASTM D 6460, or other independent testing deemed acceptable by the engineer. Design and Installation RECPs should be installed according to manufacturer's specifications and guidelines. Regardless of the type of product used, it is important to ensure no gaps or voids exist under the material and that all corners of the material are secured using stakes and trenching. Continuous contact between the product and the soil is necessary to avoid failure. Never use metal stakes to secure temporary erosion control products. Often wooden stakes are used to anchor RECPs; however, wood stakes may present installation and maintenance challenges and generally take a long time to biodegrade. Some local jurisdictions have had favorable experiences using biodegradable stakes. This BMP Fact Sheet provides design details for several commonly used ECB applications, including: ECB-1 Pipe Outlet to Drainageway ECB-2 Small Ditch or Drainageway ECB-3 Outside of Drainageway RECP-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 I oiled Erosion Control Products (RECD) EC -6 Staking patterns are also provided in the design details according to these factors • ECB type ® Slope or channel type For other types of RECPs including TRMs, these design details are intended to serve as general guidelines for design and installation, however, engineers should adhere to manufacturer's installation recommendations Maintenance and Removal Inspection of erosion control blankets and other RECPs includes • Check for general signs of erosion, including voids beneath the mat If voids are apparent, fill the void with suitable soil and replace the erosion control blanket, following the appropriate staking pattern ■ Check for damaged or loose stakes and secure loose portions of the blanket Erosion control blankets and other RECPs that are biodegradable typically do not need to be removed after construction If they must be removed, then an alternate soil stabilization method should be installed promptly following removal Turf reinforcement mats, although generally resistant to biodegradation, ate typically left in place as a dense vegetated cover glows in through the mat matrix The turf reinforcement mat provides long-term stability and helps the established vegetation resist erosive forces November 2010 Urban Drainage and Flood Control District RECP-5 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) UNDISTURBED SOIL _,- .... ANCHOR f f TRENCH, TIP• . r TYPE OF ECB AS INDICATED IN PLAN MEW, INSTALL, IN ALL LMTURBED AREAS OF STREAMS MD DRAINAGE CHANNELS TO DEPTH EI ABOVE CHANNEL INVERT. ECB SMALL GENERALLY BE OREENTED PE ALULL TO FLOW DIRECTION (I.E. LOUG DIMLN5ECQNS OF BLANKET PARALLEL TO FLOWLINES) STAKNC PATTERN SHALL MATCH ECU AND/OR CHANNEL. TYPE. ECB-1. PIPE QUILLI TO DRAINAGEWAY JOINT ANCHOR TRENCHr TYP TYPE OF ECS, INOICATED IN PLAN VIEW ECB SHALL EXTEND TO THE TOP OF THE cHAr4N EL PERIMETER ANCHOR TRENCH, TYP. L COMPACTED SUBGRADE STAKING PATTERN PER MANUFACTURER SPEC. OR PATTERN BASED ON ECS AND/OR CHANNEL TYPE (SEE STAKING PATTERN DETAI L PERIMETER c DJNT ANCHOR TOP OF 17 TRENCH, TYP. /"- CHANNE.I. BANK ANCHOR, QLTAIt,S GEOTUX''i LE C FABRIC OR FIAT, TYP. t r I J 16 'MIN, TYP. TYP. SINGLE EDGE stAKE, TYP. t L COMPACTED BACKFILL, TYP. PERIME TER ANCHOR rRENCH TWO EDGES OF TWO ADJACENT ROLLS JOINT ANCHOR TRENCH I LOOP FROM - MIDDLE OF ROLL I INT R,K EAT: ,...;\ CH•fQR TR b i OVERL.APPINC JOINT I ECB SIv1ALL DITCH OR DRAINACEWAY ..•T 2. 2 MIN 11 S 3" MIN. wont> . SJAKE .. DETN L I. RECP-6 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 November 2010 EC -6 Rolled Erosion Control Products (RECP) EROSION CONTROL BLANK E- INSTALLATION NOTES. 1 PLAN VIEW FOR - L OC ATION OF ECB - TYPE OF ECB (STRAW, STRAW -COCONUT, COCCNUT, OR EXCELSIOR, - ARrA, A, IN SQUARE 1 -ANDS OF EACH TfPt OF ECB 7 '00% NArURAI AND BIODEGRADABLE MATERIALS ARE PREFERRED FOR RECPS A:.THOUGH SOME JURISDICTIONS MAY ALLOW OTHER MATERIALS IN SOME APPLICATIONS 3 IN AREAS WHERE ECBs ARE SHOWN ON THE PLANS, THE F'CRMITTEE SHA..L PLACE -OPSO,L AND PERFORM FINAL GRADINC S'JRCACE PREPARATION AND SEEDING AND WI CHING SURORADE SHALL BE SMOOTH AND MOIST PRIOR TO EC6 RISTALL.ATIQN AND THE ECB SHALL_ 6E IN FULL CONTACT Wi'H SUBGRADE NO GAPS OR VOEDS SHALL EXIST' UNION THE BLANKET 4 aEREMETER ANCHOR TRENCH SHALL Be LSED ALONG THE OUTSICE PERIMETER OF ALL BLANKET' AREAS 5 JOINT ANCHOR TRENCH SHALL BE USED TO JOIN ROLLS Of ECBs TOGETHER (LONGITUDINALLY AND TRANSVERSELY) FOR ALL ECBs E?CEPT STRAW WHICH MAY USE AN OVERLAPPING JOINT 6 NTERMEDIATE ANCHOR TRENCH SHALL BE USED AT SPACING OF ONE-HALF ROLL. LENGTH FOR COCONUT AND EXCELSIOR ECS2 7 OVERLAPPING JOINT DETAIL SHALL BE USED TO JOIN ROLLS OF }CBS TOGETHER FOR ECBs ON SLOPES B MATERIAL SPECIFICATIONS OF _C©s SHALL CONFORM TO TABLE ECB-1 9 ANY AREAS OF SEEDING AND MULCHING DISTURBED IN THE PROCESS OF INSTALLING ECBS SHALL BE RESEEDED AND MULCHED '0 DETAILS ON DESIGN PIANS cOR MAJOR DRAINAGFWAY STARILIZATION VEIL! GOVERN IF DIFFERENT FROM THOSE SHOWN HERE TABLE ECB I ECB MATERIAL SPFOFICATL0NS TYPE COCONU- CONTENT STRAW CONTENT �xi Fi SIIOR RECOMMENDED CONTENT l NETTING** 51 RAW STRAW - COCONUT IGO% 30% MIN '0% MAX i DOUFII E/ NATURAL DOUBLE/7 NATURAL COCONUT 100% DOUBLE/ NATURAL EXCELSIOR DOUBT E/ - 1 100% NATURAL iMY aY-Of+-S` tiVi ANT1{AIUAdrEP: 1 L .•ALWRNAW N TNG MAY E3E ACCFPTalt E IN SOME Jl,RISOICTIONS RECP-8 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products (RECP) EC -6 EROSION CONTROL BLANKET MA MTECE NOTES 1. INSPECE BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITiON. MAINTENANCE OF BMPs SHOULD BE PROACTIVE. NOT REACTIVE. INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) EOLLOWENC A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAID ENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPE0T1ONS AND CORRECTIVE MEASURES SHOULD SE DOCUMENTED THOROUGHLY. 3. WHERE EgtAPs HAVE FAILED, REPAiR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4 ECBs SHALL SE LEFT IN PLACE TO EVENTUALLY BIODEGRADE. UNLESS REQUESTED TO BE REMOVED BY THE LOCAL JURISDICTION. 5. ANY ECB PULLED our, TOIiN, OR OTHERWISE DAMAGED SHALL BE REPAIRED OR REINSTALLED. ANY SUSGRADE AREAS BLOW THE CEOTEXTILE THAT HA/C ERCOED TO CREATED A VOID UNDER THE BLANKET, OR THAT REMAIN DEVOID Of GRASS SHALL L BE REPAIRED, tiESEEDED AND MULCHED AND THE }CS REINSTALLED. N(TE MANY JURISDICTIONS HAVE BMP DETAIlS THAT VARY FROM IJDFCO STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO AtH:CH DUAL SHOULD RE USED WHEN DIFFERENCES ARE NOTED. (OFT iL,.S ADAPTEC MO's' DOUGLAS COUNTY, COLORA.('3p AND TOWN OF PARI(ER COLORADO. NOT MAILABLE IN AUTOCAD) November 2010 Urban Drainage and Flood Control District RECP-9 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosio Control Prd cts ( C 1 Turf Reinforcement Mat (TRM) A rolled erosion control product composed of non -degradable synthetic fibers, filaments, nets, wire mesh, and/or other elements, processed into a permanent, three- dimensional matrix of sufficient thickness TRMs, which may be supplemented with degradable components, are designed to impart immediate erosion protection, enhance vegetation establishment and provide long-term functionality by permanently reinforcing vegetation during and after maturation Note TRMs are typically used in hydraulic applications, such as high flow ditches and channels, steep slopes, stream banks, and shorelines, where erosive forces may exceed the limits of natural, unreinforced vegetation or in aieas where limited vegetation establishment is anticipated Tables RECP-1 and RECP-2 provide guidelines for selecting rolled erosion control products appropriate to site conditions and desired longevity. Table RECP-1 is for conditions where natural vegetation alone will provide permanent erosion control, whereas Table RECP-2 is for conditions where vegetation alone will not be adequately stable to provide long-term erosion protection due to flow or other conditions RECP-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Mulching (MU) Description Mulching consists of evenly applying straw, hay, shredded wood mulch, bark or compost to disturbed soils and securing the mulch by crimping, tackifiers, netting or other measures. Mulching helps reduce erosion by protecting bare soil from rainfall impact, increasing infiltration, and reducing runoff Although often applied in conjunction with temporary or permanent seeding, it can also be used for temporary stabilization of areas that cannot be reseeded due to seasonal constraints. Mulch can be applied either using standard mechanical dry application methods or using hydromulching equipment that hydraulically applies a slurry of water, wood fiber mulch, and often a tackifier. Appropriate Uses EC -4 Photograph MU -1. An area that was recently seeded, mulched, and crimped. Use mulch in conjunction with seeding to help protect the seedbed and stabilize the soil. Mulch can also be used as a temporary cover on low to mild slopes to help temporarily stabilize disturbed areas where growing season constraints prevent effective reseeding. Disturbed areas should be properly mulched and tacked, or seeded, mulched and tacked promptly after final grade is reached (typically within no longer than 14 days) on portions of the site not otherwise permanently stabilized. Standard dry mulching is encouraged in most jurisdictions; however, hydromulching may not be allowed in certain jurisdictions or may not be allowed near waterways. Do not apply mulch during windy conditions. Design and Installation Prior to mulching, surface -roughen areas by rolling with a crimping or punching type roller or by track walking. Track walking should only be used where other methods are impractical because track walking with heavy equipment typically compacts the soil. A variety of mulches can be used effectively at construction sites, including the following types: Mulch Functions Erosion Control Yes Sediment Control Moderate Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 MU -1 EC -4 Mulching (MU) • Clean, weed- and seed -flee, long-stemmed glass hay (pieferred) or cereal grain straw Hay is preferred because it is less susceptible to removal by wind Mulch should be applied evenly at a rate of 2 tons per acre and must be tacked or fastened by an approved method suitable for the type of mulch used At least 50 percent of the grass hay mulch, by weight, should be 10 inches or more in length • Grass hay mulch must be anchored and not merely placed on the surface This can be accomplished mechanically by crimping or with the aid of tackifiers or nets Anchoring with a crimping implement is prefei red, and is the recommended method foi areas flatter than 3 1 Mechanical crimpers must be capable of tucking the long mulch fibers into the soil to a depth of 3 inches without cutting them An agricultural disk, while not an ideal substitute, may work if the disk blades are dull or blunted and set vertically, however, the frame may have to be weighted to afford proper soil penetration • On small areas sheltered from the wind and heavy runoff, spraying a tackifier on the mulch is satisfactory for holding it in place For steep slopes and special situations where greater control is needed, erosion control blankets anchored with stakes should be used instead of mulch • Hydraulic mulching consists of wood cellulose fibers mixed with water and a tackifying agent and should be applied at a rate of no less than 1,500 pounds per acre (1,425 lbs of fibers mixed with at least 75 lbs of tackifier) with a hydraulic mulcher For steeper slopes, up to 2000 pounds per acre may be required for effective hydroseeding Hydromulch typically requires up to 24 hours to dry, therefore, it should not be applied immediately prior to inclement weather Application to roads, waterways and existing vegetation should be avoided 1 Erosion control mats, blankets, or nets are recommended to help stabilize steep slopes (generally 3 1 and steeper) and waterways Depending on the product, these may be used alone or in conjunction with grass or straw mulch Normally, use of these products will be restricted to relatively small areas Biodegradable mats made of straw and jute, straw -coconut, coconut fiber, or excelsior can be used instead of mulch (See the ECM/TRM BMP for more information ) m Some tackifiers or binders may be used to anchor mulch Check with the local jurisdiction for allowed tackifiers Manufacturer's recommendations should be followed at all times (See the Soil Binder BMP for more information on general types of tackifiers ) • Rock can also be used as mulch It provides protection of exposed soils to wind and water erosion and allows infiltration of precipitation An aggregate base course can be spread on disturbed areas for temporary or permanent stabilization The rock mulch layer should be thick enough to provide full coverage of exposed soil on the area it is applied Maintenance and Removal After mulching, the bare ground surface should not be more than 10 percent exposed Reapply mulch, as needed, to cover bare areas MU -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seeding (TS/PS) EC -2 Description Temporary seeding can be used to stabilize disturbed areas that will be inactive for an extended period. Permanent seeding should be used to stabilize areas at final grade that will not be otherwise stabilized. Effective seeding includes preparation of a seedbed, selection of an appropriate seed mixture, proper planting techniques, and protection of the seeded area with mulch, geotextiles, or other appropriate measures. Appropriate Uses When the soil surface is disturbed and will remain inactive for an extended period (typically 30 days or longer), proactive stabilization measures should be implemented. If the inactive period is short-lived (on the order of two weeks), techniques such as surface roughening may be appropriate. For longer periods of inactivity, temporary seeding and mulching can provide effective erosion control. Permanent seeding should be used on finished areas that have not been otherwise stabilized. Photograph TS/PS -1. Equipment used to drill seed. Photo courtesy of Douglas County. Typically, local governments have their own seed mixes and timelines for seeding. Check jurisdictional requirements for seeding and temporary stabilization. Design and Installation Effective seeding requires proper seedbed preparation, selection of an appropriate seed mixture, use of appropriate seeding equipment to ensure proper coverage and density, and protection with mulch or fabric until plants are established. The USDCM Volume 2 Revegetation Chapter contains detailed seed mix, soil preparations, and seeding and mulching recommendations that may be referenced to supplement this Fact Sheet. Drill seeding is the preferred seeding method. Hydroseeding is not recommended except in areas where steep slopes prevent use of drill seeding equipment, and even in these instances it is preferable to hand seed and mulch. Some jurisdictions do not allow hydroseeding or hydromulching. Seedbed Preparation Prior to seeding, ensure that areas to be revegetated have soil conditions capable of supporting vegetation. Overlot grading can result in loss of topsoil, resulting in poor quality subsoils at the ground surface that have low nutrient value, little organic matter content, few soil microorganisms, rooting restrictions, and conditions less conducive to infiltration of precipitation. As a result, it is typically necessary to provide stockpiled topsoil, compost, or other Temporary and Permanent Seeding Functions Erosion Control Yes Sediment Control No Site/Material Management No November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 TS/PS-1 EC -2 Temporary and Permanent Seeding (TS/PS) soil amendments and rototill them into the soil to a depth of 6 inches of more Topsoil should be salvaged during grading operations for use and spread on areas to be revegetated later Topsoil should be viewed as an important resource to be utilized for vegetation establishment, due to its water -holding capacity, structure, texture, organic matter content, biological activity, and nutrient content The rooting depth of most native grasses in the semi -arid Denver metropolitan area is 6 to 18 inches At a minimum, the upper 6 inches of topsoil should be stripped, stockpiled, and ultimately respread across areas that will be revegetated Where topsoil is not available, subsoils should be amended to provide an appropriate plant -growth medium Organic matter, such as well digested compost, can be added to improve soil characteristics conducive to plant growth Other treatments can be used to adjust soil pH conditions when needed Soil testing, which is typically inexpensive, should be completed to determine and optimize the types and amounts of amendments that are required If the disturbed ground surface is compacted, rip or rototill the surface prior to placing topsoil If adding compost to the existing soil surface, rototilling is necessary Surface roughening will assist in placement of a stable topsoil layer on steeper slopes, and allow infiltiation and root penetration to greater depth Prior to seeding, the soil surface should be rough and the seedbed should be firm, but neither too loose nor compacted The upper layer of soil should be in a condition suitable for seeding at the proper depth and conducive to plant growth Seed -to -soil contact is the key to good germination Seed Mix for Temporary Vegetation To provide temporary vegetative cover on disturbed areas which will not be paved, built upon, or fully landscaped or worked for an extended period (typically 30 days or more), plant an annual grass appropriate for the time of planting and mulch the planted areas Annual grasses suitable for the Denver metropolitan area ale listed in Table TS/PS-1 These are to be considered only as general recommendations when specific design guidance for a particular site is not available Local governments typically specify seed mixes appropriate for their jurisdiction Seed Mix for Permanent Revegetation To provide vegetative cover on disturbed areas that have reached final grade, a perennial grass mix should be established Permanent seeding should be performed promptly (typically within 14 days) after reaching final grade Each site will have different characteristics and a landscape professional or the local jurisdiction should be contacted to determine the most suitable seed mix for a specific site In lieu of a specific recommendation, one of the perennial grass mixes appropriate for site conditions and growth season listed in Table TS/PS-2 can be used The pure live seed (PLS) rates of application recommended in these tables are considered to be absolute minimum rates for seed applied using proper drill -seeding equipment If desired for wildlife habitat or landscape diversity, shrubs such as rubber rabbitbrush (Chrysothamnus nauseosus), fourwing saltbush (Atriplex canescens) and skunkbrush sumac (Rhus trilobata) could be added to the upland seedmixes at 0 25, 0 5 and 1 pound PLS/acre, respectively In riparian zones, planting root stock of such species as American plum (Prunus americana), woods rose (Rosa woodsii), plains cottonwood (Populus sargentii), and willow (Populus spp) may be considered On non-topsoiled upland sites, a legume such as Ladak alfalfa at 1 pound PLS/acre can be included as a source of nitrogen for perennial grasses TS/PS-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seeding (TS/PS) EC -2 Seeding dates for the highest success probability of perennial species along the Front Range are generally in the spring from April through early May and in the fall after the first of September until the ground freezes. If the area is irrigated, seeding may occur in summer months, as well. See Table TS/PS-3 for appropriate seeding dates. Table TS/PS-1. Minimum Drill Seeding Rates for Various Temporary Annual Grasses Species' (Common name) Growth Season Pure (PLS)/acre Pounds Live of Seed Planting (inches) Depth 1. Oats Cool 35 - 50 1 - 2 2. Spring wheat Cool 25 - 35 1 - 2 3. Spring barley Cool 25 - 35 1 - 2 4. Annual ryegrass Cool 10 - 15 '/2 5. Millet Warm 3 - 15 '/2 - 3/4 6. Sudangrass Warm 5-10 1/2_ 3/4 7. Sorghum Warm 5-10 % _3/4 8. Winter wheat Cool 20-35 1 - 2 9. Winter barley Cool 20-35 1 - 2 10. Winter rye Cool 20-35 1 - 2 11. Triticale Cool 25-40 1 - 2 a Successful seeding of annual grass resulting in adequate plant growth will usually produce enough dead -plant residue to provide protection from wind and water erosion for an additional year. assumes that the cover This is not disturbed or mowed closer than 8 inches. Hydraulic seeding may be substituted for drilling only where slopes are steeper than 3:1 or where access limitations exist. When hydraulic seeding is used, hydraulic mulching should be applied as a separate operation, when practical, to prevent the seeds from being encapsulated in the mulch. b See Table for seeding dates. Irrigation, if consistently applied, TS/PS-3 may extend the use of cool season species during the summer months. `' Seeding rates should be doubled if seed is broadcast, or increased by 50 percent if done using a Brillion Drill or by hydraulic seeding. November 2010 Urban Drainage and Flood Control District TS/PS-3 Urban Storm Drainage Criteria Manual Volume 3 EC -2 Temporary and Permanent Seeding (TS/PS) Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses Common`s Nei ma Botanical Name Growth Seasonh Growth Form Seeds/ Pound Pounds of PLS/acre Ala AIL Basi SodW Jose Arril "I'otk Fert Fphi Dun Line Sods Arril Iot2 H igl Mea Red' Reec I int: Path Atka I'oh I'rai Rue' Dun Cita' Line See Seed Mix in Tab 9 I utal TS/PS-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seeding (TS/PS) EC -2 Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses (cont.) Common Botanical Growth Growth Seeds/ Pounds of s B C P S V A H E C v L A T See Seed Mix in Tab 9 a All of the above seeding mixes and rates are based on drill seeding followed by crimped hay or straw mulch. These rates should be doubled if seed is broadcast and should be increased by 50 percent if the seeding is done using a Brillion Drill or is applied through hydraulic seeding. Hydraulic seeding may be substituted for drilling only where slopes are steeper than 3:1. If hydraulic seeding is used, hydraulic mulching should be done as a separate operation. b See Table TS/PS-3 for seeding dates. If site is to be irrigated, the transition turf seed rates should be doubled. d Crested wheatgrass should not be used on slopes steeper than 6H to 1 V. Can substitute 0.5 lbs PLS of blue grama for the 2.0 lbs PLS of Vaughn sideoats grama. November 2010 Urban Drainage and Flood Control District TS/PS-5 Urban Storm Drainage Criteria Manual Volume 3 E&2 Tem rorary ermanent See mg (TSiPS) Table TS/PS-3. Seeding Dates for Annual and Perennial Grasses Annual Grasses (Numbers in table reference species in Table TS/PS-1) Perennial Grasses Seeding Dates Warm Cool Warm Cool January 1 —March 15 ✓ ✓ March 16 —April 30 4 1,2,3 ✓ ✓ May 1 —May 15 4 ✓ May 16 —June 30 4,5,6,7 July 1 —July 15 5,6,7 July 16 —August 31 September 1 —September 30 8,9,10,11 October 1 —December 31 ✓ ✓ Mulch Cover seeded areas with mulch or an appropriate rolled erosion control product to promote establishment of vegetation Anchor mulch by crimping, netting or use of a non-toxic tackifier See the Mulching BMP Fact Sheet for additional guidance Mai, tenanee and 1 enioval Monitor and observe seeded areas to identify areas of poor growth or areas that fail to germinate Reseed and mulch these areas, as needed An area that has been permanently seeded should have a good stand of vegetation within one growing season if irrigated and within three growing seasons without irrigation in Colorado Reseed portions of the site that fail to germinate or remain bare after the first growing season Seeded areas may require irrigation, particularly during extended dry pei iods Targeted weed control may also be necessary Protect seeded areas from construction equipment and vehicle access TS/PS-6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Wind Erosion/Dust Control (DC) EC -14 Description Wind erosion and dust control BMPs help to keep soil particles from entering the air as a result of land disturbing construction activities. These BMPs include a variety of practices generally focused on either graded disturbed areas or construction roadways. For graded areas, practices such as seeding and mulching, use of soil binders, site watering, or other practices that provide prompt surface cover should be used. For construction roadways, road watering and stabilized surfaces should be considered. Appropriate Uses Photograph DC -l. Water truck used for dust suppression. Photo courtesy of Douglas County. Dust control measures should be used on any site where dust poses a problem to air quality. Dust control is important to control for the health of construction workers and surrounding waterbodies. Design and Installation The following construction BMPs can be used for dust control: ■ An irrigation/sprinkler system can be used to wet the top layer of disturbed soil to help keep dry soil particles from becoming airborne. ■ Seeding and mulching can be used to stabilize disturbed surfaces and reduce dust emissions. • Protecting existing vegetation can help to slow wind velocities across the ground surface, thereby limiting the likelihood of soil particles to become airborne. • Spray -on soil binders form a bond between soil particles keeping them grounded. Chemical treatments may require additional permitting requirements. Potential impacts to surrounding waterways and habitat must be considered prior to use. • Placing rock on construction roadways and entrances will help keep dust to a minimum across the construction site. ■ Wind fences can be installed on site to reduce wind speeds. Install fences perpendicular to the prevailing wind direction for maximum effectiveness. Maintenance and Removal When using an irrigation/sprinkler control system to aid in dust control, be careful not to overwater. Overwatering will cause construction vehicles to track mud off -site. Wind Erosion Control/ Dust Control Functions Erosion Control Yes Sediment Control No Site/Material Management Moderate November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 DC -1 WASTE MANGEMENT AND MATERIAL POLLUTION CONTROL BMPs Construction Phasing/Sequencing (CP) SM-i Description Effective construction site management to minimize erosion and sediment transport includes attention to construction phasing, scheduling, and sequencing of land disturbing activities. On most construction projects, erosion and sediment controls will need to be adjusted as the project progresses and should be documented in the SWMP. Construction phasing refers to disturbing only part of a site at a time to limit the potential for erosion from dormant parts of a site. Grading activities and construction are completed and soils are effectively stabilized on one part of a site before grading and construction begins on another portion of the site. Photograph CP-1. Construction phasing to avoid disturbing the entire area at one time. Photo courtesy of WWE. Construction sequencing or scheduling refers to a specified work schedule that coordinates the timing of land disturbing activities and the installation of erosion and sediment control practices. Appropriate Uses All construction projects can benefit from upfront planning to phase and sequence construction activities to minimize the extent and duration of disturbance. Larger projects and linear construction projects may benefit most from construction sequencing or phasing, but even small projects can benefit from construction sequencing that minimizes the duration of disturbance. Typically, erosion and sediment controls needed at a site will change as a site progresses through the major phases of construction. Erosion and sediment control practices corresponding to each phase of construction must be documented in the SWMP. Design and Installation BMPs appropriate to the major phases of development should be identified on construction drawings. In some cases, it will be necessary to provide several drawings showing construction -phase BMPs placed according to stages of development (e.g., clearing and grading, utility installation, active construction, final stabilization). Some municipalities in the Denver area set maximum sizes for disturbed area associated with phases of a construction project. Additionally, requirements for phased construction drawings vary among local governments within the UDFCD boundary. Some local governments require separate erosion and sediment control drawings for initial BMPs, interim conditions (in active construction), and final stabilization. Construction Scheduling Functions Erosion Control Moderate Sediment Control Moderate Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 CP-1 SM-1 Co struction '° hasing/Seq end i y: g (CP) Typical construction phasing BMPs include ® Limit the amount of disturbed area at any given time on a site to the extent practical For example, a 100 -acre subdivision might be constructed in five phases of 20 acres each ® If there is carryover of stockpiled material from one phase to the next, position carryover material in a location easily accessible for the pending phase that will not require disturbance of stabilized areas to access the stockpile Particularly with regard to efforts to balance cut and fill at a site, careful planning for location of stockpiles is important Typical construction sequencing BMPs include ® Sequence construction activities to minimize duration of soil disturbance and exposure For example, when multiple utilities will occupy the same trench, schedule installation so that the trench does not have to be closed and opened multiple times ® Schedule site stabilization activities (e g , landscaping, seeding and mulching, installation of erosion control blankets) as soon as feasible following grading • Install initial erosion and sediment control practices before construction begins Promptly install additional BMPs for inlet protection, stabilization, etc , as construction activities are completed Table CP-1 provides typical sequencing of construction activities and associated BMPs Maintenance and Rem ival When the construction schedule is altered, eiosion and sediment control measures in the SWMP and construction drawings should be appropriately adjusted to reflect actual "on the ground" conditions at the construction site Be aware that changes in construction schedules can have significant implications for site stabilization, particularly with regard to establishment of vegetative cover CP-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Construction Phasing/Sequencing (CP) Table CP-1. Typical Phased BMP Installation for Construction Projects SMA Project Phase BMPs disturbance, Site Pre Access - to ■ ■ • Note: downgradient, the Install of Establish Use the it inlet inlets. site construction may sediment that protection). vehicle be if are necessary there controls tracking not fencing to is downgradient control to define be disturbed. to protect a possibility at inlets the that entrances boundaries of in sediment access the to general point paved of the tracked (on streets. vicinity project paved from Fence and of the streets the as limit site, site this needed. access even could may consist to areas if not contribute of Site Clearing and Grubbing ■ ■ ■ ■ ■ ■ ■ a Install ■ ■ • seeding, ■ revegetation ■ Install etc). Limit within Preserve Create Locate susceptible Construct Establish Create Separate Protect drainage can Leave extended Water remain disturbance perimeter the stabilized portable sediment dirt stockpiles disturbed to and/or site vegetative concrete waste and paths period. minimize to perimeter in stockpile for (construction high and place toilets disposal basins. mulch area areas controls to staging with should dust buffer winds. washout on those berms of on topsoil, perimeter the for of site the but as area. areas. stockpiles needed areas fence, at flat area and/or be downgradient in site not site accessed surfaces leave a roughened to planned perimeter. and control that the flagging, brush on roughened that have provide point away from downgradient for barriers BMPs. side. will been condition that disturbance etc). from signage. the be Use disturbed and/or upgradient inactive watering during Stockpiles drainage erosion to perimeter cover. limit and grubbing for but creates paths. side control should protect an erosion. that of so extended runoff site Stake and that will be blankets, undisturbed located be (silt clearing. perimeter Consider in inactive fence, areas away temporary period. temporary areas controls wattles, for from an November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 CP-3 SM-4 Construction Ph sing/Segue ci g (CP) Project Phase BMPs Utility And Infrastructure Installation In Addition to the Above BMPs m Close trench as soon as possible (generally at the end of the day) • Use rough -cut street control or apply ►oad base for streets that will not be promptly paved • Provide inlet protection as streets are paved and inlets are constructed ® Protect and repair BMPs, as necessary ® Perform street sweeping as needed Building Construction In Addition to the Above BMPs ® Implement materials management and good housekeeping practices for home building activities • Use perimeter controls for temporary stockpiles from foundation excavations ® For lots adjacent to streets, lot -line perimeter controls may be necessary at the back of curb Final Grading In Addition to the Above BMPs Remove excess or waste materials a Remove stored materials Final Stabilization In Addition to the Above BMPs o Seed and mulch/tackify o Seed and install blankets on steep slopes a Remove all temporary BMPs when site has reached final stabilization CP-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (Gil) MM -3 Description Implement construction site good housekeeping practices to prevent pollution associated with solid, liquid and hazardous construction -related materials and wastes. Stormwater Management Plans (SWMPs) should clearly specify BMPs including these good housekeeping practices: ■ Provide for waste management. ■ Establish proper building material staging areas. ■ Designate paint and concrete washout areas. ■ Establish proper equipment/vehicle fueling and maintenance practices. ■ Control equipment/vehicle washing and allowable non- stormwater discharges. ■ Develop a spill prevention and response plan. Acknowledgement: This Fact Sheet is based directly on EPA guidance provided in Developing Your Stormwater Pollution Prevent Plan (EPA 2007). Appropriate Uses Photographs GH-1 and GH-2. Proper materials storage and secondary containment for fuel tanks are important good housekeeping practices. Photos courtesy of CDOT and City of Aurora. Good housekeeping practices are necessary at all construction sites. Design and Installation The following principles and actions should be addressed in SWMPs: ■ Provide for Waste Management. Implement management procedures and practices to prevent or reduce the exposure and transport of pollutants in stormwater from solid, liquid and sanitary wastes that will be generated at the site. Practices such as trash disposal, recycling, proper material handling, and cleanup measures can reduce the potential for stormwater runoff to pick up construction site wastes and discharge them to surface waters. Implement a comprehensive set of waste -management practices for hazardous or toxic materials, such as paints, solvents, petroleum products, pesticides, wood preservatives, acids, roofing tar, and other materials. Practices should include storage, handling, inventory, and cleanup procedures, in case of spills. Specific practices that should be considered include: Solid or Construction Waste o Designate trash and bulk waste -collection areas on - site. Good Housekeeping Functions Erosion Control No Sediment Control No Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 GH-1 MM -3 Good Housekeeping Practices (GH) o Recycle materials whenever possible (e.g., paper, wood, concrete, oil). o Segregate and provide proper disposal options for hazardous material wastes. o Clean up litter and debris from the construction site daily. o Locate waste -collection areas away from streets, gutters, watercourses, and storm drains. Waste - collection areas (dumpsters, and such) are often best located near construction site entrances to minimize traffic on disturbed soils. Consider secondary containment around waste collection areas to minimize the likelihood of contaminated discharges. o Empty waste containers before they are full and overflowing. Sanitary and Septic Waste o Provide convenient, well -maintained, and properly located toilet facilities on -site. o Locate toilet facilities away from storm drain inlets and waterways to prevent accidental spills and contamination of stormwater. o Maintain clean restroom facilities and empty portable toilets regularly. o Where possible, provide secondary containment pans under portable toilets. o Provide tie -downs or stake -downs for portable toilets. o Educate employees, subcontractors, and suppliers on locations of facilities. o Treat or dispose of sanitary and septic waste in accordance with state or local regulations. Do not discharge or bury wastewater at the construction site. o Inspect facilities for leaks. If found, repair or replace immediately. o Special care is necessary during maintenance (pump out) to ensure that waste and/or biocide are not spilled on the ground. Hazardous Materials and Wastes o Develop and implement employee and subcontractor education, as needed, on hazardous and toxic waste handling, storage, disposal, and cleanup. o Designate hazardous waste -collection areas on -site. o Place all hazardous and toxic material wastes in secondary containment. Photograph GH-3. Locate portable toilet facilities on level surfaces away from waterways and storm drains. Photo courtesy of WWE. GI -I-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (Gil) MM -3 o Hazardous waste containers should be inspected to ensure that all containers are labeled properly and that no leaks are present. ■ Establish Proper Building Material Handling and Staging Areas. The SWMP should include comprehensive handling and management procedures for building materials, especially those that are hazardous or toxic. Paints, solvents, pesticides, fuels and oils, other hazardous materials or building materials that have the potential to contaminate stormwater should be stored indoors or under cover whenever possible or in areas with secondary containment. Secondary containment measures prevent a spill from spreading across the site and may include dikes, berms, curbing, or other containment methods. Secondary containment techniques should also ensure the protection of groundwater. Designate staging areas for activities such as fueling vehicles, mixing paints, plaster, mortar, and other potential pollutants. Designated staging areas enable easier monitoring of the use of materials and clean up of spills. Training employees and subcontractors is essential to the success of this pollution prevention principle. Consider the following specific materials handling and staging practices: o Train employees and subcontractors in proper handling and storage practices. o Clearly designate site areas for staging and storage with signs and on construction drawings. Staging areas should be located in areas central to the construction site. Segment the staging area into sub -areas designated for vehicles, equipment, or stockpiles. Construction entrances and exits should be clearly marked so that delivery vehicles enter/exit through stabilized areas with vehicle tracking controls (See Vehicle Tracking Control Fact Sheet). o Provide storage in accordance with Spill Protection, Control and Countermeasures (SPCC) requirements and plans and provide cover and impermeable perimeter control, as necessary, for hazardous materials and contaminated soils that must be stored on site. o Ensure that storage containers are regularly inspected for leaks, corrosion, support or foundation failure, or other signs of deterioration and tested for soundness. o Reuse and recycle construction materials when possible. ■ Designate Concrete Washout Areas. Concrete contractors should be encouraged to use the washout facilities at their own plants or dispatch facilities when feasible; however, concrete washout commonly occurs on construction sites. If it is necessary to provide for concrete washout areas on - site, designate specific washout areas and design facilities to handle anticipated washout water. Washout areas should also be provided for paint and stucco operations. Because washout areas can be a source of pollutants from leaks or spills, care must be taken with regard to their placement and proper use. See the Concrete Washout Area Fact Sheet for detailed guidance. Both self -constructed and prefabricated washout containers can fill up quickly when concrete, paint, and stucco work are occurring on large portions of the site. Be sure to check for evidence that contractors are using the washout areas and not dumping materials onto the ground or into drainage facilities. If the washout areas are not being used regularly, consider posting additional signage, relocating the facilities to more convenient locations, or providing training to workers and contractors. When concrete, paint, or stucco is part of the construction process, consider these practices which will help prevent contamination of stormwater. Include the locations of these areas and the maintenance and inspection procedures in the SWMP. November 2010 Urban Drainage and Flood Control District GH-3 Urban Storm Drainage Criteria Manual Volume 3 MM -3 d Housekeeping Practices (GH) o Do not washout concrete trucks of equipment into storm drains, streets, gutters, uncontained areas, or streams Only use designated washout areas o Establish washout areas and advertise their locations with signs Ensure that signage remains in good repair o Provide adequate containment for the amount of wash water that will be used o Inspect washout structures daily to detect leaks or tears and to identify when materials need to be removed o Dispose of materials properly The preferred method is to allow the water to evaporate and to recycle the hardened concrete Full service companies may provide dewatering services and should dispose of wastewater properly Concrete wash water can be highly polluted It should not be discharged to any surface water, storm sewer system, or allowed to infiltrate into the ground in the vicinity of water bodies Washwater should not be discharged to a sanitary sewer system without first receiving written permission from the system operator • Establish Proper Equipment/Vehicle Fueling and Maintenance Practices Create a clearly designated on -site fueling and maintenance area that is clean and dry The on -site fueling area should have a spill kit, and staff should know how to use it If possible, conduct vehicle fueling and maintenance activities in a covered area Consider the following practices to help prevent the discharge of pollutants to stormwater from equipment/vehicle fueling and maintenance Include the locations of designated fueling and maintenance areas and inspection and maintenance procedures in the SWMP o Train employees and subcontractors in proper fueling procedures (stay with vehicles during fueling, proper use of pumps, emergency shutoff valves, etc ) o Inspect on -site vehicles and equipment regularly for leaks, equipment damage, and other service problems o Clearly designate vehicle/equipment service areas away from drainage facilities and watercourses to prevent stormwater run-on and runoff o Use drip pans, drip cloths, or absorbent pads when replacing spent fluids o Collect all spent fluids, store in appropriate labeled containers in the proper storage areas, and recycle fluids whenever possible ® Control Equipment/Vehicle Washing and Allowable Non-Stormwater Discharges Implement practices to prevent contamination of surface and groundwater from equipment and vehicle wash water Representative practices include o Educate employees and subcontractors on proper washing procedures o Use off -site washing facilities, when available o Clearly mark the washing areas and inform workers that all washing must occur in this area o Contain wash water and treat it using BMPs Infiltrate washwater when possible, but maintain separation from drainage paths and waterbodies GH-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (Gil) MM -3 o Use high-pressure water spray at vehicle washing facilities without detergents. Water alone can remove most dirt adequately. o Do not conduct other activities, such as vehicle repairs, in the wash area. o Include the location of the washing facilities and the inspection and maintenance procedures in the SWMP. ■ Develop a Spill Prevention and Response Plan. Spill prevention and response procedures must be identified in the SWMP. Representative procedures include identifying ways to reduce the chance of spills, stop the source of spills, contain and clean up spills, dispose of materials contaminated by spills, and train personnel responsible for spill prevention and response. The plan should also specify material handling procedures and storage requirements and ensure that clear and concise spill cleanup procedures are provided and posted for areas in which spills may potentially occur. When developing a spill prevention plan, include the following: o Note the locations of chemical storage areas, storm drains, tributary drainage areas, surface waterbodies on or near the site, and measures to stop spills from leaving the site. o Provide proper handling and safety procedures for each type of waste. Keep Material Safety Data Sheets (MSDSs) for chemical used on site with the SWMP. o Establish an education program for employees and subcontractors on the potential hazards to humans and the environment from spills and leaks. o Specify how to notify appropriate authorities, such as police and fire departments, hospitals, or municipal sewage treatment facilities to request assistance. Emergency procedures and contact numbers should be provided in the SWMP and posted at storage locations. o Describe the procedures, equipment and materials for immediate cleanup of spills and proper disposal. o Identify personnel responsible for implementing the plan in the event of a spill. Update the spill prevention plan and clean up materials as changes occur to the types of chemicals stored and used at the facility. November 2010 Urban Drainage and Flood Control District GH-5 Urban Storm Drainage Criteria Manual Volume 3 MM -3 Good Housekeeping Practices (Gil) Spill Prevention, Control, and Countermeasure (SPCC) Plan Construction sites may be subject to 40 CFR Part 112 regulations that require the preparation and implementation of a SPCC Plan to prevent oil spills from aboveground and underground storage tanks. The facility is subject to this rule if it is a non -transportation -related facility that: • Has a total storage capacity greater than 1,320 gallons or a completely buried storage capacity greater than 42,000 gallons. • Could reasonably be expected to discharge oil in quantities that may be harmful to navigable waters of the United States and adjoining shorelines. Furthermore. if the facility is subject to 40 CFR Part 112, the SWMP should reference the SPCC Plan. To find out more about SPCC Plans, see EPA's website on SPPC at www.epa.gov/oilspill/spcc.htm. Reporting Oil Spills In the event of an oil spill, contact the National Response Center toll free at 1-800-424- 8802 for assistance, or for more details, visit their website: www.nrc.uscg.mil. Maintenance and Removal Effective implementation of good housekeeping practices is dependent on clear designation of personnel responsible for supervising and implementing good housekeeping programs, such as site cleanup and disposal of trash and debris, hazardous material management and disposal, vehicle and equipment maintenance, and other practices. Emergency response "drills" may aid in emergency preparedness. Checklists may be helpful in good housekeeping efforts. Staging and storage areas require permanent stabilization when the areas are no longer being used for construction -related activities. Construction -related materials, debris and waste must be removed from the construction site once construction is complete. Design Details See the following Fact Sheets for related Design Details: MM -1 Concrete Washout Area MM -2 Stockpile Management SM-4 Vehicle Tracking Control Design details are not necessary for other good housekeeping practices; however, be sure to designate where specific practices will occur on the appropriate construction drawings. GH-6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stockpile Management (SP) Description Stockpile management includes measures to minimize erosion and sediment transport from soil stockpiles. Appropriate Uses Stockpile management should be used when soils or other erodible materials are stored at the construction site. Special attention should be given to stockpiles in close proximity to natural or manmade storm systems. Design and Installation MM -2 Photograph SP -1. A topsoil stockpile that has been partially revegetated and is protected by silt fence perimeter control. Locate stockpiles away from all drainage system components including storm sewer inlets. Where practical, choose stockpile locations that that will remain undisturbed for the longest period of time as the phases of construction progress. Place sediment control BMPs around the perimeter of the stockpile, such as sediment control logs, rock socks, silt fence, straw bales and sand bags. See Detail SP -1 for guidance on proper establishment of perimeter controls around a stockpile. For stockpiles in active use, provide a stabilized designated access point on the upgradient ent side of the stockpile. Stabilize the stockpile surface with surface rougEening, temporary seeding and mulching, erosion control blankets, or soil binders. Soils stockpiled for an extended period (typically for more than 60 days) should be seeded and mulched with a temporary grass cover once the stockpile is placed (typically within 14 days). Use of mulch only or a soil binder is acceptable if the stockpile will be in place for a more limited time period (typically 30-60 days). Timeframes for stabilization of stockpiles noted in this fact sheet are "typical" guidelines. Check permit requirements for specific federal, state, and/or local requirements that may be more prescriptive. Stockpiles should not be placed in streets or paved areas unless no other practical alternative exists. See the Stabilized Staging Area Fact Sheet for guidance when staging in roadways is unavoidable due to space or right-of-way constraints. For paved areas, rock socks must be used for perimeter control and all inlets with the potential to receive sediment from the stockpile (even from vehicle tracking) must be protected. Maintenance and Removal Inspect perimeter controls and inlet protection in accordance with their respective BMP Fact Sheets. Where seeding, mulch and/or soil binders are used, reseeding or reapplication of soil binder may be necessary. When temporary removal of a perimeter BMP is necessary to access a stockpile, ensure BMPs are reinstalled in accordance with their respective design detail section. Stockpile Management Functions Erosion Control Yes Sediment Control Yes Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SP -1 MM -2 Stockpile Management (SM) MATERIALS STAGING IN ROADWAY MAINTENANCE NOTES 1 INSPECT BMus EACH WORKDAY, AND MAINTAIN THEM iN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE NOT REACTIVE INSPECT BMP-:: AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION AND PERFORM NEC LSSAN( MAINTENANCE 2 'REOUEN" ORSERVMIONS AND MAINTENANCE APR NECESSARY TO MAINTAIN BMPS I { EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD RE DOCUMrN1ED IHOPODUHLY 3 WHERE BMP HAVE FAILED REPAIR DR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 INSPECT PVC PIPE ALONG CURB LINE FOR CLOGGING AND DEBRIS PEMOkE OBSTRUCTIONS PROMPTLY 5 CLEAN MATERIAL FROM PAVED SURFACES BY SWEEPING OR VACUUM NO NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSU_T WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USE€' WHEN DIFFERENCES ARE NOTED (JETTILS AD/ TEO FROM AURORA COLORADO) SP -6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 MM -2 Stockpile Management (SM) When the stockpile is no longer needed, properly dispose of excess materials and revegetate or otherwise stabilize the ground surface where the stockpile was located. SP -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stockpile Management (SP) MM -2 V In'aPipmemu I , • • # t •$ , ,, t , . • 0 , - - . S• sr.... • , t ;. ,:`' .0?.�; ,; • ;\:. .; ♦ �.P • .1_ ,• ••• F. •. ♦ j I I I _ WWE modification -SCL or equivalent may be used in place of silt fence and if the stockpile is located within an area with perimeter controls, then those controls may also be the control measure for the stockpile. eeese re/C STOC KPI LE { sr ) 3.0' MIN A SIT FENCE (SEE SF DETAIL FOR INSTALLATION REQuIREk4ENTS) STOCKPILE PROTECTION PLAN mAximumyrN IF/ SECTION A SILT FENCE (SEE SF DETAIL FOR INSTALLATION REQUIREMENTS) SP -1. STOCKPILE PROTECTION STOCKPILE PROTECTION INSTALLATIOk NOTES 1. SEE PLAN VIEW FOR: -LOCATION OF STOCKPILES. -TYPE OF STOCX;PILE PR0TECT;ON. 2. INSTALL PERIMETER CONTROLS IN ACCORDANCE WITH THEIR RESPECTIVE DESIGN DETAILS. SILT FENCE IS SHOWN It -I THE STOCKPILE PROTECTION DETAILS: HOWEVER, OTHER TYPES OF PERIMETER CONTROLS INCLUDING SEDIMENT CONTROL LOGS OR ROCK SOCKS MAY BE SUITAF..F IN SOME CIRCUMSTANCES CONSIDERATIONS FOR D£Tr RMININc THE APPROPRIATE TYPE OF PERIMETER CCNTROL FOR A STOCKPILE INCLUDE WHETHER THE STOCKPILE IS LOCATED ON A PERVIOUS OR IMPERvIOUS SURFACE, THE RELATIVE HEIGHTS OF THE PERM+ ETrP CONTROL ANO STOCKPILE, Tklr ASi L#" Y OF THE P ERi METER CONTROL TO CO NJTAIN THE STOCKPILE WITHOUT FAILING IN THE EVENT THAT MATERIAL FROM THE STOCKRLE SHIFTS OR SLUMPS AGAINST ri-h£ P ERtME rER, AND OTHER FACTORS. 3 STABILIZE THE STOCKPILE SURFACE WITH SURFACE RCUCHENING, TEMPORARY SEEDING. AMD MULCHING, EROSION CONTROL BLANKETS. OR SOIL BINDERS. SOILS STOCKPILED FOR AN EXTENDED PERIOD (TYPICALLY FOR MORE THAN 60 DAYS) SHOULD BE SEEDED AND MULCHED WITH A TEMPORARY CRASS COVER ONCE THE STOCKPILE IS PLACES (TYPICALLY WITHIN 14 DAYS). USE Of MULCH ONLY OR A SOIL BINDER IS ACCEPTABLE IF THE STOCKPILE WILL BE iN PLACE FOR A MORE LIMITED TIME PERIOD (TYPICALLY 30-60 DAYS). 4, FOR TEMPORARY STOCKPILES ON THE INTERIOR PORTION OF A CONSTRUCTION SITE, WHERE OTHER OUWNGRADIENT• CONTROLS, INCLUDING PERIMETER CONTROL, ARE IN PLACE, STOCKPILE PERIMETER CONTROLS MAY NOT !3E REQUIRED. November 2010 Urban Drainage and Flood Control District SP -3 Urban Storm Drainage Criteria Manual Volume 3 MM -2 Stockpile Management (SM) ST0CKP LE PROTECTION MASNTENANCC NOTES 1. INSPECT U3MPs EACH WORKDAY, AND MAINTAIN THEM ?NI EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BMPs SHOULD SE PROACTIVE. NOT REACTIVE. INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) OLLOWINC A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSAkY MAINTENANCE 2. FREQUENT 0€3SERVATI0NS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE 0PERATINC CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED I'HOROUG HLY. 3. WHERE BMPs HAVE FAILED. REPASR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. STOCKPILE PROTECTION MAINTENANCE NOTES 4. IF' PERIMETER PROTECTION MUST BE MOVED TO ACCESS SOIL STOCKPILE, REPLACE PERMIT -EH CONTROLS BY THE END OF THE WORKDAY. 5. STOCKPILE PERIMETER CONTROLS CAN BE REMOVED ONCE ALL THE MATERIAL FROM THE STOCKPILE HAS BEEN USED. (DETAILS ADAPTED FROM PARKER, C0LORA00, NOT AVAlABLE INt AUTOCAD) NOTE: MANY JURISDICi"IONS HAYS E3MF' DEFAILS THAT VARY FROM UDFCD STANDAR° DETAIL. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. SP -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stockpile Management (SP) MM -2 ORANGE SAFETY CONE "ARP ANCHOR ROAD C. tf ROADWAY C 6, MAX POLY LINER - �_ BERM w ,-4mP.- - N D.- --- D T T T / "t~ POLY TARP 4 6ERM MATERIAL (TRIANGULAR SILT DIKE, J 6"MIN f SELIMENT CONTROL LOG, I 6 MAX , MUST NuT ROCK SOCK OR OTHER I BE LOCATED WITHIN WRAPPED MATER AO A DRIVE LANE POLY TARP SOIL/LANDSCAPE MATERIAL 6' PVC PIPE r --OR DRAINAGE 'N ; LOWLtNE URB LINE i� V C TARP ANCHOR (CINDER RLOCK OR 5 OA, LON BUCKET OF WATER) F'QLY LINC.R -- 6' PVC PPE SP -2. MATERIALS STAGING IN ROADWAY ptAT'-'RIALG ST AGINr IN POAOWAYINSTAL I ATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF MATERIAL STAGING AREA(S) - CONTRACTOR MAY ADJUST LOCATION AND SIZE 01 STAGING AREA WITH APPROVAL FROM THE LGCA_ WRISDICLON 2 FEATURE MUST 8E INSTALLED PRIOR TO EXCAVATION, EARTHWORK OR DELIVERY OF MATERIALS 3 MATERIALS MUST BE STATIONED ON Ti -FE POLY LINER ANY INCIDENTAL MATERIALS DEPOSITED ON PAVE& SECTION OR ALONG CURB LINE MUST DE CLEANED UP PROMPTLY 4 POLY LINER AND TARP COVER SHOULD BE OF SIGNIFICANT THICKNESS TO PREvENT DAMAGE OR LOSS OF INTEGRITY 5 SAND BAGS MAY BE SUBSTITUTED TO ANCHOR THE COVER TAPP OR PROVIDE BERMING UNDER ThE BASE LINER 6 rtATUT7C IS NOT :MINDED FOR USE WITH WET MATERIAL THAT WILL DE DRAINING AND/OR SPREADING OUT ON THE POLY 'N ER OR FOR DEMOLITION MATERIALS 7 THIS FEATURE CAN BE USED FOP UTI_ITv REPAIRS - WI -HEN 0"HER STAGING LOCATIONS ANC OPTIONS ARE 1 MTFD - OTHER LIMITED APPL'CATION AND SHORT DURATION STAGING November 2010 Urban Drainage and Flood Control District SP -5 Urban Storm Drainage Criteria Manual Volume 3 Street Sweeping and Vacuuming (SS) SM-7 Description Street sweeping and vacuuming remove sediment that has been tracked onto roadways to reduce sediment transport into storm drain systems or a surface waterway. Appropriate Uses Use this practice at construction sites where vehicles may track sediment offsite onto paved roadways. Design and Installation Photograph SS -1. A street sweeper removes sediment and potential Street sweeping or vacuuming should be pollutants along the curb line at a construction site. Photo courtesy of Tom Gore. conducted when there is noticeable sediment accumulation on roadways adjacent to the construction site. Typically, this will be concentrated at the entrance/exit to the construction site. Well -maintained stabilized construction entrances, vehicle tracking controls and tire wash facilities can help reduce the necessary frequency of street sweeping and vacuuming. On smaller construction sites, street sweeping can be conducted manually using a shovel and broom. Never wash accumulated sediment on roadways into storm drains. Maintenance and Removal • Inspect paved roads around the perimeter of the construction site on a daily basis and more frequently, as needed. Remove accumulated sediment, as needed. • Following street sweeping, check inlet protection that may have been displaced during street sweeping. • Inspect area to be swept for materials that may be hazardous prior to beginning sweeping operations. Street Sweeping/ Vacuuming Functions Erosion Control No Sediment Control Yes Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 SS -1 Protection of Existing Vegetation (PV) Description Protection of existing vegetation on a construction site can be accomplished through installation of a construction fence around the area requiring protection. In cases where upgradient areas are disturbed, it may also be necessary to install perimeter controls to minimize sediment loading to sensitive areas such as wetlands. Existing vegetation may be designated for protection to maintain a stable surface cover as part of construction phasing, or vegetation may be protected in areas designated to remain in natural condition under post -development conditions (e.g., wetlands, mature trees, riparian areas, open space). Appropriate Uses SM-2 Photograph PV -1. Protection of existing vegetation and a sensitive area. Photo courtesy of CDOT. Existing vegetation should be preserved for the maximum practical duration on a construction site through the use of effective construction phasing. Preserving vegetation helps to minimize erosion and can reduce revegetation costs following construction. Protection of wetland areas is required under the Clean Water Act, unless a permit has been obtained from the U.S. Army Corps of Engineers (USACE) allowing impacts in limited areas. If trees are to be protected as part of post -development landscaping, care must be taken to avoid several types of damage, some of which may not be apparent at the time of injury. Potential sources of injury include soil compaction during grading or due to construction traffic, direct equipment -related injury such as bark removal, branch breakage, surface grading and trenching, and soil cut and fill. In order to minimize injuries that may lead to immediate or later death of the tree, tree protection zones should be developed during site design, implemented at the beginning of a construction project, as well as continued during active construction. Design and Installation General Once an area has been designated as a preservation area, there should be no construction activity allowed within a set distance of the area. Clearly mark the area with construction fencing. Do not allow stockpiles, equipment, trailers or parking within the protected area. Guidelines to protect various types of existing vegetation follow. Protection of Existing Vegetation Functions Erosion Control Yes Sediment Control Moderate Site/Material Management Yes November 2010 Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual Volume 3 PV -1 SM-2 Protection of Existing Vegetation (PV) Surface Cover During Phased Construction Install construction fencing or other perimeter controls around areas to be protected from clearing and grading as part of construction phasing. Maintaining surface cover on steep slopes for the maximum practical duration during construction is recommended. Open Space Preservation Where natural open space areas will be preserved as part of a development, it is important to install construction fencing around these areas to protect them from compaction. This is particularly important when areas with soils with high infiltration rates are preserved as part of LID designs. Preserved open space areas should not be used for staging and equipment storage. Wetlands and Riparian Areas Install a construction fence around the perimeter of the wetland or riparian (streamside vegetation) area to prevent access by equipment. In areas downgradient of disturbed areas, install a perimeter control such as silt fence, sediment control logs, or similar measure to minimize sediment loading to the wetland. Tree Protection' ■ Before beginning construction operations, establish a tree protection zone around trees to be preserved by installing construction fences. Allow enough space from the trunk to protect the root zone from soil compaction and mechanical damage, and the branches from mechanical damage (see Table PV -1). If low branches will be kept, place the fence outside of the drip line. Where this is not possible, place fencing as far away from the trunk as possible. In order to maintain a healthy tree. be aware that about 60 percent of the tree's root zone extends beyond the drip line. Table PV -1 Guidelines for Determining the Tree Protection Zone (Source: Matheny and Clark, 1998; as cited in GreenCO and WWE 2008) Distance from Trunk (ft) per inch of DBH Species Tolerance to Damage Young Mature Over mature Good 0.5' 0.75' 1.0' Moderate 0.75' 1.0' 1.25' Poor 1.0' 1.25' 1.5' life life Notes: expectancy; expectancy DBH = diameter Mature at breast = 20%-80% height of life (4.5 expectancy; ft above grade); Over Young mature = <20% of =>80% of • Most tree roots grow within the top 12 to 18 inches of soil. Grade changes within the tree protection zone should be avoided where possible because seemingly minor grade changes can either smother Tree Protection guidelines adapted from GreenCO and WWE (2008). Green Industry Best Management Practices (BMPs) for the Conservation and Protection of Water Resources in Colorado: Moving Toward Sustainability, Third Release. See www.greenco.org for more detailed guidance on tree preservation. PV -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Protection of Existing Vegetation (PV) SM-2 roots (in fill situations) or damage roots (in cut situations). Consider small walls where needed to avoid grade changes in the tree protection zone. ■ Place and maintain a layer of mulch 4 to 6 -inch thick from the tree trunk to the fencing, keeping a 6 -inch space between the mulch and the trunk. Mulch helps to preserve moisture and decrease soil compaction if construction traffic is unavoidable. When planting operations are completed, the mulch may be reused throughout planting areas. ■ Limit access, if needed at all, and appoint one route as the main entrance and exit to the tree protection zone. Within the tree protection zone, do not allow any equipment to be stored, chemicals to be dumped, or construction activities to take place except fine grading, irrigation system installation, and planting operations. These activities should be conducted in consultation with a landscaping professional, following Green Industry BMPs. ■ Be aware that soil compaction can cause extreme damage to tree health that may appear gradually over a period of years. Soil compaction is easier to prevent than repair. Maintenance and Removal Repair or replace damaged or displaced fencing or other protective barriers around the vegetated area. If damage occurs to a tree, consult an arborist for guidance on how to care for the tree. If a tree in a designated preservation area is damaged beyond repair, remove and replace with a 2 -inch diameter tree of the same or similar species. Construction equipment must not enter a wetland area, except as permitted by the U.S. Army Corps of Engineers (USACE). Inadvertent placement of fill in a wetland is a 404 permit violation and will require notification of the USACE. If damage to vegetation occurs in a protected area, reseed the area with the same or similar species, following the recommendations in the USDCM Revegetation chapter. November 2010 Urban Drainage and Flood Control District PV -3 Urban Storm Drainage Criteria Manual Volume 3 Tab 7 Phased BMP Implementation Ennis Substation Expansion Project Phased BMP Implementation (§I.C.3.c)3) The following section describes the BMPs selected for implementation on this site. Specific locations of BMPs are indicated on the site plans, provided in Tab 2. Installation, implementation and maintenance specifications for each BMP are included in Tab 6. Minimize disturbed area and protect natural features: The project will be phased to the extent practical to limit the amount of disturbed area that is exposed at any given time. BMP phasing is critical to stormwater management. BMP implementation will be coordinated with the various stages of construction. BMPs that control erosion and sediment transport from initial site activities will be installed prior to earth disturbing activities. As work progresses and additional areas are disturbed, BMPs that control erosion and sediment transport will be implemented prior to the start of earth disturbing activities in those areas. As portions of the site are completed and previously disturbed areas are stabilized or the BMP is no longer needed, BMPs will be removed. This project is broken into two phases with most of the earthwork occurring in Phase 1. Permanent or temporary soil erosion control measures for all slopes, channels, ditches. or any disturbed land area and soil stockpiles, will be implemented as soon as practicable after final grading or the final earth disturbance has been completed. When it is not possible to permanently stabilize a disturbed area after an earth disturbance has been completed or where significant earth disturbance activity ceases, temporary erosion control measures will be implemented as soon as practicable. Project Phase BMPs to be implemented during each phase* Pre-Disturbance/Site Preparation • • • • inlet located Pothole to proximity Establish measures. Establish concrete Install anticipated and protections, perimeter around for during to access washout, utilities, other the soil disturbances. the staging construction utilities. into control portable proposed as curb the necessary. site checks, area around toilets, sediment and depending The with install dumpster the initial This and construction areas basin. may perimeter disturbance tracking on as be that design done needed. controls, trailers, will control will prior have and be Construction • • • • • improvements Perform Construct Perform facility Excavation Construct and limited will clearing, site proposed be new to underground grading located. portion expose foundations, grubbing, sediment within of the the conduit subgrade. the associated and project. basin. area installation. grading where substation for future the substation features, drainage Final Stabilization • • • • Restore seeding blankets Convert configuration. Remove required. Close been achieved. all and temporary disturbed and sediment appropriate riprap mulching areas where control basin permits and/or called by to measures spreading installing out once final for final in that the detention stabilization erosion crushed are design no ccntrol longer plans. rock, pond has * Specific details/specifications regarding the implementation and maintenance of each BMP type are provided in Tab 6. Ennis Substation Expansion Project Tab 8 Materials Handling, Spill Prevention, Waste Management and Disposal Ennis Substation Expansion Project Materials Handling and Spill Prevention (§1.C.3.c)4) Spill Prevention The contractors on site will take all measures necessary to prevent spills that could impact stormwater This includes, but is not limited to • Proper storage of all materials and chemicals, • Proper maintenance and protection of all containers, and , • Proper handling/dispensing materials and chemicals Materials Handling Consistent with the permit requirements, all potential pollutants other than sediment will be handled and disposed of in a manner that does not cause contamination of stormwater Non -sediment pollutants that may be present during construction activities include, but are not limited to • Petroleum products including fuel, lubricants, antifreeze and hydraulic fluids, • Concrete • Mortar and grout • Mineral oil • Sanitary wastes If these materials are used, then the following practices will be implemented These materials, and other materials used during construction with the potential to impact stormwater, will be stored, managed, used, and disposed of in a manner that minimizes the potential for releases to the environment and especially into the storm water system Vehicles entering the construction site should be properly maintained to prevent spills or leaks of hazardous fluids that would be exposed to stormwater Vehicles used on -site will be inspected for leaks Leaking vehicles will not -be allowed to stay on -site or will use drip pans until the leak is repaired The vehicle operator will be responsible for any necessary clean up Vehicles will not be parked in or near retention areas, natural drainage areas or surface waters Drip pans will be used for secondary protection of on -site vehicles, if necessary Maintenance and fueling areas, if needed, will be indicated on the site map A spill kit will be available on site to clean up any spills or leaks If more than 1,320 gallons of petroleum products in 55 -gallon drums or larger containers will be stored onsite overnight a site -specific Spill Prevention, Control and Countermeasure plan, stamped by a professional engineer is required Stockpiles Different types of earth material may need to be stockpiled on the job site dur ng the earth moving activities All stockpiles will have erosion and/or sediment control measures implemented around the toe of the pile or be within an area with perimeter controls , Waste Management and Disposal, Including Concrete Washout (§I.C.3 c)7) Solid Waste Large amounts of solid waste are not anticipated to be generated during this project The majority of solid waste will be collected, removed from site, and properly disposed If larger quantities are generated than can be handled by individuals on site, then dumpsters will be provided in convenient, level locations away from traffic areas, storm drains, drainage areas, or retention areas A licensed company will be contracted Ennis Substation Expansion Project to empty the dumpsters, as needed. The site project managers will be responsible for monitoring the site to ensure that all site personnel and subcontractors use the proper waste disposal practices and facilities. Concrete Waste A concrete washout is designed to capture waste water and waste products resulting from the cleaning of concrete and masonry equipment. A concrete washout may not be necessary if all washout operations are performed off -site. If a concrete washout is needed, it will be installed or provided prior to any construction activities that include the handling of materials containing cement (e.g. concrete, masonry, etc.). Concrete washouts may include small excavations located near the point of concrete masonry placement, geotextile bags, water tight vessels, small lined dumpsters, buckets, or a mobile disposal unit, etc. Concrete washouts require appropriate access control, tracking and containment. Signs will be placed at the washout area and elsewhere, as necessary, to clearly indicate the location of the concrete washout. If needed, the designated washout facility or facilities will be installed on site and the locations added to the site plan. Concrete will be poured as part of this project. Maintenance may include the removal and proper disposal of excess material, cleaning or replacing the tracking material and general structural integrity of the installation, as needed. Concrete washouts will be cleaned of excess water and solids on a regular basis to maintain the proper function of the BMP. The hardened concrete and/or excess wash water will be hauled away by an approved contractor to a designated facility designed to receive such materials. No concrete waste will be discharged directly onto the ground without a containment feature. Concrete washout water will not be discharged to state surface waters or to storm sewer systems. If unlined pits are used to contain concrete washout water, the following management practices must be implemented: • The washout site must be temporary (less than 1 year); • The washout site may not be located in an area where shallow groundwater may be present, such as near natural drainages, springs, or wetlands; and • Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any contaminated soils, must be removed from the site. Portable Sanitary Facilities Portable sanitary facilities will be provided in convenient, level locations away from traffic areas, curb flowlines, paved surfaces, storm drains, or retention areas. A licensed company will be hired to maintain and clean the units, inspect for any deficiencies, and keep the units in good working order. Portable sanitary facilities will be adequately anchored to prevent tipping over. Contacts and Notifications for Spills or Releases Xcel Environmental Group — 303-556-1244 Xcel Environmental will make all necessary notifications. Local Emergency Number — 911 CDPHE — 1-877-518-5608 NRC- 1-800-424-8802 Ennis Substation Expansion Project Xcel Energy Contaminated Soil Process Soils contaminated with hazardous materials or wastes can be encountered during installation of new electric or gas underground services and while maintaining existing services. This fact sheet outlines the process by which crews and planners should respond to contaminated soil. How to Determine if Contaminated Soil is Present • Contaminated soil may exhibit staining or unusual odors. • Contaminated soil may be encountered in industrial areas, landfills or other areas of known environmental impacts like underground storage tanks from gas station operations, or associated with buried containers. UND_ERj a�srn�enoM� What to do if you encounter contaminated soil during work Stop work and contact Environmental Services** Pre -Planning Process For project work in the design phase where there is a potential to encounter contamination — near by gas/fueling stations, industrial areas, landfills, railroads, or known, or potential areas of contamination • Contact Environmental Services to assist in the site assessment and characterization process to evaluate and determine the need to address potential contamination, and health and safety needs. • Each group has different criteria that need to be considered • Environmental — Ensure regulatory compliance and protection of public health and the environment, to minimize Company liability • Industrial Hygiene and Safety — worker protection driven by OSHA regulations Resources on XpressNet • Industrial Hygiene webpage HAZWOPER resources and HAZWOPER written program and Environmental Pages (All Media Checklist') • http://xpressnet/Safety/Workplace Safety/Programs _ G _ - _ O/Industrial_Hygiene Program For guidance/assistance when encountering contaminated soils contact Environmental Services on call #: NSP - (612) 330-7873, PSCO - (303) 556-1244, SPS - (806) 674-1890 * *Environmental Services will contact Industrial Hygiene and Safety Xt.-el Energy Safety & Industrial Hygiene Industrial Hygiene Program Industrial Hygiene and Ervironmental Services Support Activities for Utility Excavation at Hazardous Waste Sites and other Contaminated Soils Periodic:a ty, gas and electric service installations involve excavation in areas of soil contaminated by hazarcorrs substances or other pollutants. Areas of known contamination include Superfund, CERC .tS, Brownfi&d, Radium, and UMTRA sites, leaking underground storage tanks (LUSTs), and old landfills. These sites were historically conta€n;nated with industriai wastes indudinQ petroleum, solvents, lead, asbestos, radioactive radium and urart cam mine tailings, and flammable methane gas from organic decomposition. Contaminated soils may also be encountered during excavation in areas not previously known to oe contaminated. Soil contaminants may present hazards to workers in the form of toxic dust and vapor inhalation or skin exposures, and flammable atmospheres in excavations where hot work must be conducted for ;errice nstallaton tie-ins. Xcel Energy Contacts Safety & Industrial Hygiene industrial Hygienists Environmental Services Environmental Analysts Unplanned excavation through hazardous soils Proceed with project 1 Suspect hazardous sots discovered during excavation STOP WORK Notify Environmental Services & Industrial Hygiene • r Customer request for gas/ electric service 1 Energy Services Representative 1 Gas/Efe.ctric-, Engineering A 1 excavation No--�—�/ route through contaminated_ sites? / Yes, planned excavation through hazardous soils Environmental Services - - - Environmental Services: -reviews regulations, determines project environmental requirements -assists in obtaining necessary environmental perrnsts - Land Develement -Construction Storrnwater Discharge -Stream Crossing - Special Use Permits, etc.) - reviews excavation locations for contamination in Superfund, CEROUS, erownneld, Radium, & UMTRA sites, LUSTs, old landfills -liaison with Health Dep/EPA -site assessment reports - ID/char8cterize contamination -locations, depths, concentrations, plume dimensions, water table depth/flow, if known -determines hazardous waste testing & dispo6a1 Fequirer ieuls -cammunkc-.ales requirements -Contacts t.egal to assess environment& agreement requirements I::Pgefld: project ecom munication mmunication T -Check& with properly owner and .site contractor for known hazardous sod contamination -May deck site tucatiun versus envircnfrmental site databases provided by Environmental Services -Checks with Environmentat Services for additional site information Gas/Electric Engineering notifies Environmental Services or Industrial Hygiene l Gas/Electric Construction T industrial kygierie it A i i V Executed by Xcel Energy Executed by Contractor Gas/ Gas/Electrk: Gonstructicn Electric Construction Gas/Electric Constcuc;ion: 1) selects qualified workers per Industrial Hygiene specifications or 2) works with Industrial Hygiene to ensure workers become qualified Industrial Hygiene: -reviews site rewulati{ins, determines project health & safety requirements -worker training - respirators/PPE -worker air monitoring/ exposure assessment - atmospheric testing for toxics, flamrables -liaison with OSHA/Health Dep/EPA for training & air monitoring requirements -communicates requirements - project heath & safety plan -health & safety plan training -site health & safety officer - respirator & PPE selection -respirator medical surveillance, training & fit tests - respirator & PPE selection -worker qualification verification -hazardous soil screening -atmospheric testing for toxics, larnmables -worker air monitoring/exposure assessment for air contaminants - project documentation XcelEnergyM • M. a e. ob a a a " -" a. : .7. °aleases . 4. a. . a 'a: le ec° c c c c um sa a a a ft a a 7:7 I:10: a a MOM a ft M. • • :Maaaa MO a aCaa is a a ft a a a a a a a a a a a as a a a a a a a a a a �ft n�...,.. �a�ft em tmental tra a ecs�M. • a a a ft a a a es - - - : a-- = a- : -.---:. 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Xcel Energy Environmental Directives for Contractors Contractor has entered into one or more contracts (the "Contract") with Xcel Energy Inc., or its subsidiaries or affiliates (referred to herein as "Xcel Energy"). As provided in the Contract, Contractor must comply with all applicable provisions of Company's plant, Project, facility or Site policies and procedures, including but not limited to any instructions and procedures pertaining to plant or facility Site security, industrial safety, environmental directives, work authorization, equipment control and hazardous materials. As such, Contractor must comply with these Environmental Directives for Contractors ("Directives"). Xcel Energy expects Contractor to support environmental compliance through their own policies and procedures, to go above and beyond compliance and ensure the protection of human health and the environment, and to promote Xcel Energy's reputation as an environmental leader in the communities we serve. Energy efficiency, pollution prevention, conservation, and performing operations in an environmentally responsible manner should be considerations in all decision -making and performance. Contractor must communicate these same values and requirements to their employees and subcontractors. The information in these Directives does not supersede any specific requirements listed in the Contract. Contractor is required to comply with all federal, state and local laws, regulations, and requirements and any additional requirements or policies that may be required by Xcel Energy for the specific work at issue in the Contract. The subject areas listed in these Directives are not meant to provide an exhaustive list or complete summary of the types of safety, environmental or other concerns that Contractor must consider. Compliance with all applicable laws, rules, and regulations is required for all activities. Contractor is an independent contractor. By providing these Directives to Contractor, Xcel Energy in no way assumes any of the duties, obligations, or liabilities attributed to Contractor under the Contract. To the extent there is a conflict between these Directives and the Contract, the Contract shall control. The Xcel Energy Contract Manager will identify the appropriate Environmental Services staff to serve as the contact(s) for the project. Xcel Energy Environmental Services (XEES) staff may be located in one of Xcel's Corporate offices, a field office or service center, or at a power plant. Due to the complexity of some activities and the regulations, you may have contact with more than one "Subject Matter Expert" during performance of a contract. Environmental and emergency contact numbers are listed at the end of these Directives for any inquires or notifications Contractor may have. Adherence to these Directives does not constitute completion of your obligations under Xcel Energy's Contractor Safety Program or Safety Program requirements identified by Xcel Energy's Corporate Safety Department. Contractor is responsible for meeting all applicable safety requirements, including but not limited to the appropriate use of Personal Protective Equipment. Last Revised 3-24-16 2 ©2016 Xcel Energy, Inc. Contractor's Responsibilities A. Planning Planning includes everything that happens before a Contractor begins work in the field Contractor is tasked with a number of activities during this planning phase of work The scope of work developed for various projects will determine the level of involvement and define roles and responsibilities for each contract and/or project During the planning stages of a project, the Contractor should review all applicable laws, rules, regulations, permit conditions, and site specific conditions that may impact or apply to the work Contractor should also prepare for any spills, leaks, or accidents (or any unforeseen project emergency) that could occur during project implementation, so that Contractor is prepared to implement the appropriate response measures Further details are provided below regarding spill response and reporting procedures Before starting work make sure you have identified an Emergency Coordinator and know your work location (the physical address where you are working) in the event an emergency arises Before starting work, Contractor must also contact the XEES person that has been designated as the representative for the project to discuss steps the Contractor is taking to ensure all activities are compliant with applicable environmental laws and regulations B. Hazard Analysis Contractor may excavate, construct, or perform demolition activities in or near areas that are contaminated or that were previously contaminated and have been remediated To the extent practical, these areas should be identified in advance to avoid problem and delays caused by unforeseen site conditions Contractor should conduct an appropriate site hazard analyses or undertake appropriate environmental due diligence prior to commencement of the work Contractor should also have contingency plans in place in the event hazards are encountered. When unexpected contamination is discovered in the field - stop work, and contact your Xcel Energy Contract Manager and XEES to notify them immediately and to coordinate any immediate response actions and/or agency reporting See further information below regarding spill response and reporting procedures C Permitting Permits apply to specific activities at specific locations and may have conditions that are more stringent than environmental laws and regulations Contractor is responsible for identifying all necessary permits for Contractor work affecting Xcel Energy facilities or operations Before starting work, Contractor must contact the XEES person that has been designated as the representative for the project to discuss whether Contractor or Xcel Energy will be the named applicant on the permit and whether the Contractor or Xcel Energy will be responsible for conducting permit research or preparing the permit application Xcel Energy must be involved with any communications with regulatory agencies or made aware of any such communications prior to Contractor outreach to the regulatory agencies This includes permit discussions, application submittals, negotiation on permit conditions, and/or permit agreements Contractor bears the responsibility for compliance with the permit terms and specified actions, Last Revised 3-24-16 3 ©2016 Xcel Energy, Inc limitations, notifications, and reporting requirements for their activities. Failure to comply may subject the contractor to significant fines and penalties as well as to project delays and potential shutdowns. D. Chemical Control Contractor must review, approve, and track all chemicals used while working on Xcel Energy projects. This helps ensure that employees are not exposed to overly -hazardous products, Safety Data Sheets (SDSs) are available for each product, and information for all required agency reporting is available. When selecting chemicals for use, Contractor should give consideration to reduction of disposal costs, reduction of safety risks, buying only quantities needed to do the job, storing chemicals properly, checking expiration dates, and whether alternative products may be an appropriate less hazardous option. Contractor is responsible for ensuring that chemicals are used in accordance with all labels. Contractor must remove all unused chemicals and products at the completion of each job and as specified in the Contract Agreement. Contractor is not to abandon unused products at any Xcel Energy facility or job -site. Contractor can use only those chemicals that are on Xcel Energy's pre -approved list. These products can be viewed by obtaining a copy of the corporate and/or site Recognized Product List (RPL) from your Xcel Energy Contract Manager or XEES. If the Contractor desires to use a chemical or product that is not on the pre -approved list, Contractor should either propose the use of the new chemical or find an approved substitute. To submit a "new" chemical for consideration, forward a SDS to XEES at least two weeks before the chemical is needed on site. Proposed chemicals cannot be used until permission to proceed has been given by XEES. By giving permission to proceed or with the use of a chemical or by placing chemicals on the pre - approved list, Xcel Energy in no way assumes any of the duties, obligations, or liabilities attributed to Contractor under the Contract agreements and in no way is endorsing the use of the chemical for any particular application. E. Threatened and Endangered Species Contractor must follow all requirements associated with threatened and endangered species. These species can include birds, animals, plants, fish, etc. Contractor is responsible for being aware if the work is being performed in an area that has been identified as a protected habitat. All requirements directed for these areas must be followed. Any incident involving death, injury or removal of a threatened or endangered species shall be immediately reported to XEES. F. Waste Contractor must comply with all applicable regulatory requirements, as well as Company policies, for waste handling, including, but not limited to, hazardous wastes, universal wastes, solid wastes, and special wastes. Contractor must coordinate closely with their Xcel Energy Contract Manager as well as directly with XEES. Contractor requirements include the following: Last Revised 3-24-16 4 ©2016 Xcel Energy, Inc. O Correctly identify wastes by type and keep them separate, accumulate wastes in appropriate containers, and label all containers according to XEES requirements or the appropriate regulations, and conduct inspections as required a Store wastes only in areas that have been approved by the Xcel Energy Contract Manager or XEES Storage areas for liquid wastes shall not be adjacent to storm intercepts, wetlands or surface waters Storage areas must be inspected at least monthly O Contractor should segregate scrap metals and other recyclable wastes Contractor must contact Xcel Energy Contract Manager for handling instructions if not previously arranged O Contractor may be responsible for handling and disposal of non -hazardous refuse (construction and demolition debris, scrap lumber, office waste, etc ) All such disposal must be at an appropriately -permitted landfill O Contractor is responsible for notifying Xcel Energy Contract Manager and coordinating with XEES all handling and disposal of Hazardous, Universal, and/or special wastes Note that many Contractor -generated wastes are specific to a particular project, and must be managed as specified in the contract Contractor should give consideration to, and make an effort to O Use nonhazardous materials instead of hazardous materials a Reduce waste generation O Recycle and reuse materials rather than dispose G. Electrical Equipment (Oil -Filled) Transformers, capacitors, and other electrical equipment often contain oil The oil in this equipment may contain polychlorinated biphenyls (PCBs) PCBs are highly regulated and the Contractor must know the regulations associated with PCB management. Contractor must alert the Contract Manager or XEES representative to any spills or release from oil -filled electrical equipment See further information below regarding spill response and reporting procedures Contractor crews should assume that electrical equipment contains PCB in regulated concentrations until it is determined that it does not contain PCBs in regulated concentrations (known to be <50 ppm ) The Contractor is to deliver electrical equipment to the designated service center or disposal outlet as specified by the Contract Agreement H. Gas Pipeline and Condensate Management Gas condensate is defined as liquid hydrocarbons that condense from natural gas because of changes in temperature, pressure, and/or flow Xcel Energy has specific requirements identified in the Gas Standards Manual (in addition to applicable Federal, State, and other requirements) concerning handling of condensate These requirements are available upon request of the Contractor Prior to any gas work, removing condensate from the system or performing work that may result in the removal of condensate from the system, Contractor must coordinate activities with your Xcel Energy Contract Manager, site manager, and XEES Contractor must assume that PCBs are present in the condensate, the condensate is ignitable, and coatings have asbestos unless and until it is verified that these conditions are not present When gas condensate is present within these systems liquids must be collected for proper disposal Last Revised 3-24-16 5 ©2016 Xcel Energy, Inc I. Tank Management Contractor is expected to comply with all applicable regulations for aboveground and underground storage tanks. Most States have adopted regulations for tanks that, while similar to Federal regulations, may be different and more stringent. Local requirements may include the Uniform Fire Code or National Fire Protection Agency (NFPA) guidelines. Contractor must be aware of local requirements and contact the Fire Marshall, fire department, or appropriate local response agency as necessary, specified in the Contract Agreement or agreed with XEES. In addition, Xcel Energy may impose certain requirements for tanks above and beyond these regulations. Prior to installing a new tank, modifying an existing tank, adding materials, or performing maintenance, the Contractor must contact the Contract Manager or XEES representative to discuss steps Contractor has taken to ensure all applicable requirements have been met. These requirements can also include unique site -specific requirements for hazardous materials and tanks. In the event of a release to the environment of any regulated substance, Contractor must perform cleanup activities associated with the spill. See further information below regarding spill response and reporting procedures. J. Demolition Activities Contractor shall conduct a building hazard assessment prior to demolishing any building at Xcel Energy facilities. This assessment shall be conducted by a qualified professional as defined by the regulatory body governing such activities. Assessments shall include a determination as to whether regulated materials such as lead, asbestos, or radioactive sources exist. These regulated materials must be properly managed prior to the demolition of the building. K. Other Common Substances and Hazards Contractor understands that the project site may currently or historically have been used for electric or gas gathering, storage, transmission, distribution, or related facilities. Natural gas facilities may now transport and may continue to transport natural gas at significant pressures. Electric facilities may now transmit and may continue to transmit electric current at significant voltages, and conductors on electric lines may not be insulated. Power may have been generated historically or may currently be generated onsite by various means, including for example, nuclear, coal, wind, solar, hydro, gas or other means. Contractor may encounter hazardous or other regulated materials, including but not limited to, coal ash, oil, lead, asbestos, naturally occurring radioactive materials, radioactive sources, or PCBs. Contractor should take necessary precautions for ensuring its work is performed safely and in compliance with all applicable laws and regulations with respect to these potential site conditions. L. Spill Response and Reporting Spill Prevention. Contractor must become familiar with Xcel Energy facility formal spill response plans and procedures. If a spill plan is not required or does not exist (as is often the case for non-Xcel Energy locations or Rights -of -Way), Contractor must still be prepared to take Last Revised 3-24-16 6 ©2016 Xcel Energy, Inc. appropriate prevention and response measures Contractor should have spill response kits and Personal Protective Equipment readily available on site to respond to spills ® Good spill prevention measures should be implemented including, for example Good housekeeping — work area should be cleaned up immediately after the completion of jobs, minimize amount of chemicals in storage, etc ® Store chemicals properly — store in fireproof cabinets or in designated areas, store drums away from traffic and run-off or sewers/waterways, keep drums closed, etc a Storage areas should be inspected on a regular basis to identify containers that may be in poor condition or leaking containers ® Absorbent materials/pads should be available during all handling and transfer operations ® Drip pans should be in place when dispensing products from drums ® Pump connections and hoses should be inspected for integrity prior to each use ® All chemicals or oil transfer operations must be continuously monitored to prevent overfill and spills ® Know location of spills kits — replace any items used Spill Response Contractor performing an emergency response must be trained appropriately and cleanup spills, even small spills, immediately Contractor must (1) protect their employees, subcontractors, and the public, and (2) protect the environment if a spill occurs If a spill occurs, Contractor must evacuate the area if necessary and appropriate The Contractor must ensure that all persons are kept away from the area of contamination until additional assistance arrives In addition, the Contractor must make every effort to prevent the spread of contamination Containing the flow of liquids, preventing contamination from entering a sewer or waterway, and preventing physical contact with the spilled material are all important Spill Reporting There are federal, state, and local spill reporting laws that may apply in the event of a spill and Contractor may be responsible for spill reporting to federal, state, or local agencies If it is an emergency situation, call "911" first to activate fire, police, or medical personnel as required Next notify the facility emergency number, if applicable Finally the Xcel Energy Contract Manager and appropriate XEES number must be promptly notified, so that Xcel Energy can coordinate with the Contractor all spill reporting and communications with regulatory agencies and third parties about the spill (In the event of a chemical release or if a spill might reach or has reached water, a sewer, food, feed, or garden, residential property, or school, or has otherwise gone off -site contact XEES immediately (e g , within 15 minutes of the spill)) If the Contractor activity identifies a potential historical release, work must be immediately stopped in the affected area to determine appropriate next steps Upon identification of potential historical releases Contractor shall immediately contact Xcel Energy Contract Manager and appropriate XEES staff Once notified of a current or historic spill, Xcel Energy may decide to independently report the spill in addition to, or in lieu of the Contractor However, the Contractor remains responsible for all spill reporting obligations it may also have under applicable laws and regulations Contractor shall make best efforts to coordinate with Xcel Energy on any communications to regulatory agencies and this d parties about the spill and Contractor shall keep Xcel Energy informed of all such communications Last Revised 3-24-16 7 ©2016 Xcel Energy, Inc M. Regulatory Inspections Contractor shall notify the project manager and/or XEES when an authorized environmental agency staff member is on site. Notice shall be provided as soon as the Contractor is aware that such a site visit or inspection will occur. XEES shall be provided the opportunity to participate in any scheduled site visit. Contractor should cooperate with authorized inspections. Contractor should be prepared for inspections. Records and documentation should be kept up to date, and if appropriate or required by law, should be kept on site. Contractor should maintain good housekeeping practices for the work area. If sampling is planned, it may be appropriate to take split samples or to coordinate with XEES to take split samples. N. Environmental and Emergency Contacts EMERGENCY ENVIRONMENTAL CONTACT SERVICES NUMBERS NEM New Oklahoma Texas Mexico Minnesota South North Dakota Dakota Wisconsin Goloradr CIISIIP Phone / Pager: (303) 556-1244 (806) 674-1890 no answer leave message Name, Phone, Location, Nature of Emergency. will be contacted as soon as possible. Spill Hotline (612) 330-5972 (24 hrs) (715) 577-0003 24 Hour Hotline: (800) 541-0918 If with and You (303) 294-2213 (806) 378-2196 (612) 330-7873 (715) 737-1346 or (715) 737-2691 General Office Number: Last Revised 3-24-16 8 ©2016 Xcel Energy, Inc. T,b9 Final Stabilization and Long -Term Stormwater Management Ennis Substation Expansion Project Final Stabilization (l1C.4.) Description of Final Stabilization Practices (§I.C.4.a) Final stabilization efforts within the substation earthing grid will consist of applying final surfacing of crushed rock. Upon the completion of earth disturbing activities, all disturbed areas outside of the earthing grid, including the extended sediment basin, will be restored with seed and mulch (see details in the Erosion and Sediment Control Plan). All slopes 3:1 or greater will be seeded and blanketed with erosion control blankets. Temporary control measures that are no longer needed will be removed after final stabilization measures are implemented. Final Stabilization Methods (§I.C.4.b) Final stabilization includes those measures taken to control pollutants in stormwater after soil disturbing activities are complete. Practices implemented to achieve final stabilization may include: • Hardscaping with road base materials or course aggregate. • Selecting an appropriate seed mix. • Soil testing to identify if soil amendments are needed. • If necessary, soil amendments will be incorporated into the top soil and fill material • Seeding and mulching in areas prey ously vegetated before disturbance. • Installing erosion control blankets on slopes 3:1 or greater Below is a seed mix that may be utilized per the Weld County reseeding specifications. Restoration Contractor may modify seed mix with approval. Areas South of County Road 68 Mix Western Wt-eatgrass (Arnim, Barton, Rc.ana ue Gcetna (Hachital, lovsngton S►deoats Gearna (Vaughn, Butt., timer, El Reno. Haskell Smooth Broome iLincoln,. Mancha:l Sand dropseed Perennial Ryegrass lCalibra or Garibaldi tetraolc d) Slender Wheatgrass f Pr,'or, Revenue or San Luis) 4.lk&tgrass (Fults ft, Salt on Sea) Switchgrsss (Nebraska 28: 6lactwrr Total: Final Stabilization Achievement (§I.C.4.c) 230 bs r st aue 1.50 bs p s/acre 2.25 lbs p&sraua 2.00 ibs ptsilecre 0.25 an plea/acre 0.75 lbs ph/scre 2.50 bs ph/acre 1.25 lbs pis/acre 1,,,04s iaitait 14.00 pound pis/acre Per CDPS General Permit for Stormwater Discharges Associated with Construction Activities, final stabilization is achieved when all ground surface disturbing activities at the site have been completed and uniform vegetative cover has been established with an individual plant density of at least 70 percent of pre -disturbance vegetative cover, or equivalent permanent, physical erosion reduction Ennis Substation Expansion Project methods have been employed This project will use physical erosion reduction methods to provide final stabilization Long -Term Stormwater Management ($I C 4) PSCo will be constructing a drainage swale and an extended detention pond on site Ennis Substation Expansion Project Tab 10 Inspection Schedule Inspection Requirements BMP Maintenance Blank Inspection Form Ennis Substation Expansion Project 1 Inspections (§I C 5) and (§I D 6) A Minimum Inspection Schedule (§I D 6 a) The designated responsible party for inspections at the site will make a thorough inspection at least every 14 days to ensure the BMPs implemented on the site are functioning as specified Permittee or contractor shall produce written inspection records every fourteen (14) days and after significant precipitation events All necessary maintenance and repair shall be completed immediately In addition to every 14 days, inspections will also be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion Provided the timing is appropriate, the post -storm inspections may be used to fulfill the routine inspection requirement, and this could reset the 14 -day schedule B Post -storm inspections (§I D.6 a)1) Post -storm event inspections will be conducted within 24 hours following the storm event that has a potential to cause surface erosion unless there are no active construction activities If no construction activities will occur following a storm event, post -storm event inspections will be conducted prior to re -commencing construction activities, but no later than 72 hours following the storm event The delayed inspection will be documented in the inspection record C Inspections at Completed Sites/Areas (§I D 6 a)21 A thorough inspection must be made every 30 days (monthly) at sites where construction has been completed but final stabilization has not been achieved because the vegetative cover has not been established 2 Inspection Requirements (§I D 6.b) A Inspection Scope (§I D 6 b)1) The following items will be examined for evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters during the inspection and reported on the inspection reports (§I D 6 b)1) • Construction site perimeter, • All disturbed areas, • Material and/or waste storage areas that are exposed to precipitation, • Discharge locations, and • Locations where vehicles access the site All erosion and sediment control practices identified in the SWMP will be evaluated to ensure that they are maintained and operating correctly B Inspection Report/Records (§I D 6 b)2) The inspection report form is located in this tab Inspection reports must identify any incidents of non-compliance with the terms and conditions of the general permit The inspection record will note evidence of, or the potential for, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters Inspection records must be retained for three years from the expiration or inactivation of permit coverage Ennis Substation Expansion Project However, PSCo's internal policy requires all records associated with this permit to be maintained for 10 years. The inspection report will include: • The inspection date; • Name(s) and title(s) of personnel making the inspection; • Location(s) of discharges of sediment or other pollutants from the site; • Location(s) of BMPs that need to be maintained; • Location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location; • Location(s) where additional BMPs are needed that were rot in place at the time of inspection; • Deviations from the minimum inspection schedule; • Description of corrective action for locations where discharges occurred or BMPs that require maintenance, repair, are ineffective or inadequate, and where additional BMPs are needed; • Dates that corrective action(s) were taken; • Measures taken to prevent future violations, including requisite changes to the SWMP, as necessary; and • After adequate corrective action(s) have been taken, or where a report does not identify any incidents requiring corrective action, the report will contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. 3. BMP Maintenance (I.C.5, §I.D.7, AND §I.C.8) BMP Maintenance All erosion and sediment control practices and other protective measures identified in the SWMP will be maintained in effective operating condition. BMPs that are not adequately maintained in accordance with good engineering, hydrologic and pollution control practices are considered to be no longer operating effectively and will be modified or replaced. BMPs implemented at the site must be adequately designed and maintained to prov de control for all potential pollutant sources associated with the construction activity to prevent pollution or degradation of State waters. Maintenance of BMPs will occur anytime that the condition of the BMP or the accumulation of sediment or debris adversely impacts the functioning of the BMP. Replacement and Failed BMPs (§I.D.8) Adequate site assessment will be performed as part of comprehensive inspection and maintenance procedures, to assess the adequacy of BMPs at the site, and the necessity of changes to those BMPs to ensure continued effective performaice. Where site assessment results in the determination that new or replacement BMPs are necessary, the BMPs will be installed or maintained in accordance with this SWMP. Where BMPs have failed, resulting in noncompliance they will be addressed as soon as possible, immediately in most cases, to minimize the discharge of pollutants. When new BMPs are installed or BMPs are replaced, the SWMP will be updated. Ennis Substation Expansion Project Construction Stormwater Inspection Report Project Name Project Location (i e address, cross streets) Xcel Project Manager Xcel Construction Supervisor/Onstte QC Inspector Construction Contractor Supervisor/Foreman SWMP Administrator Stormwater Inspector (name & company) BMP Installation Contractor (name & company) Date of Inspection Start Time of Inspection End Time of Inspection NPDES/CDPS (CDPHE) Certification # Local/MS4/GESC Permit # Has there been a storm event since the last inspection ❑ Yes ❑ No Storm Start Date Storm Stop Date Approximate Amount Current weather at time of inspection Phase of Construction ❑ Pre -Construction ❑ Interim ❑ Initial ❑ Final Type of Inspection ❑ Routine Inspection ( 7 or ❑ 14 calendar days) ❑ Runoff Event (Post -storm event inspections must be conducted within 24 hours after the end of any precipitation or snowmelt event with potential to cause surface erosion If no construction activities will occur following a storm event, post -storm event inspections will be conducted prior to ie-commencing construction activities, but no later than 72 hours following the stoi m event Provided the timing is appropriate, the post -storm Inspections may be used to fulfill the routine inspection requirement, and this could reset the 7 or 14 day schedule) ❑ Inspections at Completed Sites/Area (for sites or portions of sites where construction is complete but final stabilization has not been achieved due to a vegetative cover that has not become established, a thorough inspection of the stormwatei management system will be made at least once every month, and post -storm event inspections need not be performed per state requirements NOTE Post -storm event inspections may still be required per local permitting requirements) ❑ Winter Condition Inspection Exclusion (inspections will not be conducted where construction activities are temporarily halted, snow cover exists over the entire site for an extended period, and melting conditions posing a risk of surface erosion do not exist The following information will be documented in_the inspection record for use of this exclusion dates when snow cover occurred, date when construction activities ceased, and date melting conditions began) ❑ Other ❑ Are there any deviations from minimum inspection schedule, if so explain SWMP Management Yes No N/A Comments Is the Permit(s) (Federal, State and/or Local/MS4/GESC) retained in the SWMP Notebook, ❑ ❑ ❑ Is the SWMP Notebook located on site? If not, provide copy of documentation that was submitted requesting alternate location ❑ ❑ ❑ Location of SWMP Is a site specific Spill prevention or SPCC Plan included in SWMP (applies to bulk storage of hydrocarbon product greater than 1,320 gallons) ❑ ❑ ❑ Are changes to the SWMP documents noted (i e new or altered narratives, BMP details, site map updates, etc)? ❑ ❑ ❑ Are inspection reports retained in the SWMP Notebook? ❑ ❑ ❑ Are corrective actions from the previous inspection complete? (If not show items on page 2) ❑ ❑ ❑ Are thei e any changes to the potential pollutants onsite7 ❑ ❑ ❑ BMPs at time of inspection SWMP In Design In Used Not at this Needed time SWMP In Design In Used Not at this Needed time Erosion Control BMPs Sediment Control BM Ps Seeding ❑ ❑ ❑ Stabilized (i.e. mat) VTC, Construction mud mat, transition Entrance ❑ ❑ ❑ Mulch/Mulch Tackifier ❑ ❑ Sediment Trap/Basin ❑ ❑ ❑ ❑ Soil Binder ❑ ❑ ❑ Inlet Protection ❑ ❑ ❑ Retention ECB/TRM) Blankets (i.e. ❑ ❑ ❑ Outlet Protection ❑ ❑ ❑ Embankment Protector ❑ ❑ ❑ Sediment Control Log ❑ ❑ ❑ Grading roughening, (i.e surface etc) ❑ ❑ ❑ Silt Fence ❑ ❑ ❑ Berm/Diversion bars) (i.e. water ❑ ❑ ❑ Rock Socks ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Velocity check dams, dissipation water device bars) (i.e. ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Outlet Protection ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ BM Ps for Special Conditions Materials General Handling, Pollution Spill Prevention Prevention, Waste Management and Dewatering Structure ❑ ❑ ❑ Stockpile Management ❑ ❑ ❑ Temporary Stream Crossing ❑ ❑ ❑ Materials staging area) Management (i.e. ❑ ❑ ❑ Clear Water Diversion ❑ ❑ ❑ Concrete Waste Management ❑ ❑ ❑ Sensitive Area Fencing ❑ ❑ ❑ Solid Waste/Trash Management ❑ ❑ ❑ Access/Boundary (i.e. const. Controls fence) ❑ ❑ ❑ Sweeping ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Sanitary Facility ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Vehicle and Equip. Management ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ Other: (specify) ❑ ❑ ❑ GENERAL NOTES CONSTRUCTION SITE ASSESSMENT & CORRECTIVE ACTIONSxxoff site Pollutant Discharges are a violation of the Permit and Reason for Stop Work** The construction site perimeter, all disturbed areas, material and/oi waste storage areas that are exposed to precipitation, discharge locations, and locations where vehicles access the site shall be inspected for evidence of, or the potential tor, pollutants leaving the construction site boundaries, entering the stormwater drainage system, or discharging to state waters All best management practices identified in the SWMP shall be evaluated to ensure that they are maintained and operating correctly Identify the condition of the BMP, using more than one letter if necessary (I) Incorrect Installation, (M) Maintenance is needed, (F) BMP failed to operate, (A) Initial/Additional BMP is needed, (R) Remove BMP Keep copies of this blank page for additional room if needed Continuous and proactive maintenance is required on all BMPs BMPs that are not operating effectively, have proven to be inadequate, or have failed must be addressed as soon as possible, immediately in most cases Date of initial finding Location (station #, pole #, intersection, etc) BMP Condition (I,M,F,A,R) Description of Corrective Action/Comment Date Completed & Initials CONSTRUCTION SITE ASSESSMENT: **OFF SITE POLLUTANT DISCHARGES ARE A VIOLATION OF THE PERMIT AND REASON FOR IMMEDIATE STOP WORK (a) Is there evidence of discharge of sediment or other pollutants from the site? • Yes ■ No *If yes, explain the discharge and the corrective actions in the Construction Site Assessment & Corrective Actions section or General Notes. (b) Has sediment or other pollutants discharging from the site reached state waters or municipal storm sewer system? ■ Yes ■ No *If yes, contact Xcel Energy's Environmental Services at (303)294-2189. No individual shall notify local or State offices on Xcel Energy's behalf. INSPECTION CERTIFICATION I certify this inspection is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information. Stormwater Inspector (Name, Title, Company & Signature) Date: COMPLIANCE CERTIFICATION Corrective action(s) identified in this report has been taken, or the report does not identify any incidents requiring corrective action and the site is in compliance with the permit to the best of my knowledge and belief. Project Manager/SWMP Administrator/Designee (Name, Title, Company & Signature) Date: Tab 11 SWMP Requirements Non -Compliance Notification Ennis Substation Expansion Project SWMP Requirements (I.D.5) SWMP Implementation (§I.D.5.a): The SWMP will be implemented prior to commencement of construction activities. The SWMP will be kept accurate and up-to-date. and will reflect the actual on -site ground conditions. SWMP Retention (§I.D.5.b): A copy of the SWMP must be retained on -site unless another location, specified by the permittee, is approved by the Division (§I.D.10). D.10). SWMP Revisions (§I.D.5.c): The SWMP will be revised: 1. When there is a change in design, construction, operation, or maintenance of the site, which would require the implementation of new or revised BMPs; or 2. If the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity; or 3. When BMPs are no longer necessary and are removed. SWMP changes will be made prior to changes in the site conditions, except as noted below under "responsive SWMP changes." SWMP revisions may include, but are not limited to: potential pollutant source identification: selection of appropriate BMPs for site conditions; BMP maintenance procedures; and interim and final stabilization practices. The SWMP changes may include a schedule for further BMP design and implementation, provided that, if any interim BMPs are needed to comply with the permit, they are also included in the SWMP and implemented during the interim period. Responsive SWMP Changes (§I.D.5.d): The majority of SWMP revisions to address changing site conditions can be made immediately with simple field revisions to the SWMP. In the less common scenario where more complex development of materials to modify the SWMP is necessary. SWMP revisions will be made in accordance with the following requirements: 1. The SWMP will be revised as soon as practicable. but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occurs at the site; and 2. A notation must be included in the SWMP prior to the site change(s) that includes the time and date of the change(s) in the field, an identification of the BMP(s) removed or added, and the location(s) of those BMP(s). SWMP Availability (§I.D.10): A copy of the SWMP will be provided upon request to the Water Quality Control Division or EPA within the time frame specified in the request. If the SWMP is required to be submitted to any of these entities, it must include a signed certification in accordance with Part I.F.1 of the permit. certifying that the SWMP is complete and meets all permit requirements. This SWMP will be available to the public under Section 308(b) of the CWA and Section 61.5(4) of the Colorado Discharge Permit System Regulations. PSCo will make plans available to members of the public upon request. However, PSCo may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2. Ennis Substation Expansion Project Noncompliance Notification (§ii a 3) What to report The following instances of noncompliance will be reported to the PSCo Project Manager (§II A 3 a) 1 Any noncompliance which may endanger health or the environment, 2 Any spill or discharge of hazardous substances or oil which may cause pollution of the waters of the state, and 3 Any discharge of stormwater which may cause an exceedance of a water quality standard Verbal Notification It is PSCo's policy that the Environmental Services Group performs all regulatory reporting for all of PSCo's activities If an instance of non-compliance such as those listed above occurs at the site, immediately contact the PSCo Project manager, who will then call the Environmental Services Emergency Number This number is 303-556-1244 This phone number is staffed 24 hours a day, 7 days a week by Environmental Services personnel They will assist in determining the severity of the event and they will then make the appropriate notifications Under no circumstance are non -Environmental Service personnel authorized to contact regulatory agencies Ennis Substation Expansion Project Tab 12 Pre -Construction Photolog Ennis Substation Expansion Project Ennis Substation Expansion Project Pre -Construction Site Visit 10-8-18 Photo 1. Photo 2 i Photo 3. Photo 4. Ennis Substation Expansion Project Pre -Construction Site Visit 10-8-18 Photo 9 Photo 11. Photo 10. Photo 12. Tab 13 Environmental Permits Ennis Substation Expansion Project c40°s COLORADO Department of Public Health & Environment Facility Activity . Disturbed Acres* Facility Located at: Specific Information (if applicable)* CERTIFICATION TO DISCHARGE UNDER CDPS GENERAL PERMIT COR-0300000 STORMWATER ASSOCIATED WITH CONSTRUCTION ACTIVITIES Certification Number COR03U217 This Certification to Discharge specifically authorizes: Public Service Company of Colorado to discharge stormwater from the facility identified as Ennis Substation Expansion Project To the waters of the State of Colorado, including, but not limited to: - Box Elder Creek Pipeline and utilities 4 7 acres CR 59 and CR 20 Unincorporated CO 80643 Weld County Latitude 40 181369 Longitude -104 508431 Certification is issued and effective 10/10/2018 Expiration Date* This authorization expires upon effective date of the General Permit COR030000 renewal unless otherwise notified by the division ' *ADMINISTRATIVELY CONTINUED This certification under the permit requires that specific actions be performed at designated times The certification holder is legally obligated to comply with all terms and conditions of the permit This certification was approved by Meg Parish, Unit Manager Permits Section Water Quality Control Division *explanation of Admin Continued in cover letter 4300 Cherry Creek Drive S , Denver, CO 80246 1530 P 303 692 2000 www colorado gov/cdphe/wqcd John W Hirkenlonner. Governor I I am/ Wnik. MD. MSPH. Fxecutive Director and Chief Medical Officer COLORADO Department of Public Health & Environment Dedicated to protecting and improving the health and environment of the people of Colorado Chad Campbell, Mgr Lnv Sery Public Service Company of Colorado 1 800 Larimer St Ste 1 300 Denver, CO 80202 DATE: 10/10/2018 MEMO RE: Certification, Colorado Discharge Permit System Permit No., COR030000, Certification Number: COR03U217 DIVISION CONTACTS: Joseph Sturgeon, 303-691-4019, Joseph.Sturgeon@state.co.us ATTACHMENTS: Certification COR03U217, General Permit, Highlight Sheet, Termination Application The Water Quality Control Division (the Division) has reviewed the application submitted for the Ennis Substation Expansion Project facility and determined that it qualifies for coverage under the CDPS General Permit for Stormwater Discharges Associated with Construction Activities (the permit). Enclosed please find a copy of the permit certification, which was issued under the Colorado Water Quality Control Act. FEE INFORMATION: 4. 7 acres An application fee of $175 - 50% of the annual fee) will be assessed for all new applications received between July 1, 2018 and June 30, 2019. Beginning July 1, 2019 an annual fee of $ 350 category 7, subcat - Stormwater Construction 1-30 Acres Disturbed per CRS 25-8-502] will be assessed and invoiced every July for as long as the permit certification is in effect. All certifications terminated prior to July 1, 2018, will not be invoiced the annual fee for the year beginning July 1, 2017. It is the responsibility of the permittee to submit a termination application when the permit is no longer needed. Fees are assessed and invoiced for every permit that is active July 1 of the fiscal year. Permits for which termination applications are received by June 30 of the current fiscal year will not be invoiced for the new fiscal year. CERTIFICATION RECORDS INFORMATION: The following information is what the Division records show for this certification. For any changes to Contacts - Legal, Facility, or Billing - a "Notice of Change of Contacts form" must be submitted to the Division. This form is also available on our web site and must be signed by the legal contact Facility: Ennis Substation Expansion Project WeldCounty Construction Activities Pipeline and utilities Legal Contact (receives all legal documentation pertaining to the permit certification) Chad Campbell, Mgr Env Sery Phone number: Public Service Company of Colorado 1800 Larimer St Ste 1300 Denver, CO 80202 Facility Contact (contacted for general inquiries regarding the facility): Billing Heather Brickey,PM II Public Service Company of Colorado 1800 Larimer St Ste 1300 Denver, CO 80202 Contact (receives the Linvoice pertaining to the permit certification): Chad Campbell, Mgr Env Sery Public Service Company of Colorado 1800 Larimer St Ste 1300 Denver, CO 80202 ADMINISTRATIVE CONTINUATION EXPLANATION: 303-294-2177 Em ail: chad.campbell@xcelenergy.com Phone number: 303-571-7044 Email: heather.c.brickey@xcelenergy.com Phone number: 303-294-2177 Email: chad.campbell@xcelenergy.com The Division is currently developing a renewal permit and associated certification for the above permitted facility. The development and review procedures required by law have not yet been completed. Then onstruction Stormwater General Permit, which expired June 30, 2012, is administratively continued and will remain in effect under Section 104(7) of the Administrative Procedures Act, C.R.S. 1973. 24-4-101, et seq (1982 repl. vol. 10) until a renewal permit/certification is issued and effective. The renewal for this facility will be based on the application that was received 10/8/2018 Ail effluent limits, terms and conditions of the administratively continued permit are in effect until the renewal is complete. 4300 Cherry Creek Drive John W. Hlckenlooper, Governor S., Denver, CO 80246-1530 P 303-692-2000 www. col orado _ gov/cdphe Larry Wolk, MD, MSPH, Executive Director and Chief Medical Officer HIGHLIGHTS HT CONSTRUCTION ACTIVITY STORM WATER STORMWATER GENERAL PERMIT PERMIT REQUIREMENTS: z* * Inspections: Inspection or stormwater management system required at least every 14 days and after any precipitation or snowmel . event that causes surface erosion. (See Inspections, page 12 of the permit, enclosed,) Records: Records of inspections must be kept and be available for review by the Division. Stormwater Management Plan (SWAM: A copy of the SWMP must be kept on the construction site at all times, PERMIT FEE: * Send payment only when you receive an invoice (sent once a year). PERMIT TERMINATION AND TRANSFER: * I f the facility is finally stabilized, you may inactivate the permit, using the enclosed Division form. * "Final' ,s tabiliz 7(fo,7 " ki reached when all the construction is complete, paving is finished, and the vegetation (grass, etc.) b established, not just reseeded. See permit, page 9. If the entire site changes ownership, you should transfer the permit to the new owner. * If part of tie site will be sold to a new owner, you will need to reassign permit coverage* . Forms for these actions arc available on our vvebsite, below. Also see page 5 of the permit. QUESTIONS? S? * vw.coloradowaterpermits.coni * Email cdphe_wqcd_permits@state,co.us * Or call (303)692-3517 COLORADO Department of Public Health & Environment Dedicated to protecting and improving the health and environment of the people of Colorado FOR DIVIISION USE ONLY Effective date COLORADO WATER QUALITY CONTROL DIVISION TERMINATION APPLICATION Print or type all information. Mail original form with ink signature to the following address. Emailed and Faxed forms will not be accepted. All items must be filled out completely and correctly. If the form is not complete, you will be asked to resubmit it. Colorado Dept of Public Health and Environment Water Quality Control Division WQCD-P-B2 4300 Cherry Creek Drive South Denver CO 80246-1530 PART A. IDENTIFICATION OF PERMIT OR AUTHORIZATION - Please limit submission to one permit, certification, or authorization per form. All permit termination dates are effective on the date approved by the division. Processing times vary by type of discharge. Some discharge types require onsite inspections to verify information in this application. PERMIT, CERTIFICATION, OR AUTHORIZATION NUMBER (DOES NOT END IN 0000) PART B. PERMITTEE INFORMATION Company Name Legal Contact First Name Last Name Title Mailing Address City State Zip Code Phone Email address PART C. FACILITY OR PROJECT INFORMATION Facility/ Project name Location/Address City County Local contact name Title Phone Email address PART D. TERMINATION INFORMATION QUESTIONS Provide information for Part D that applies to your facility and termination request. Not all questions need to be answered- only the part that applies to your facility. 1 Part D1 covers facilities no longer in operation. Part D2 covers mining facilities no longer in operation Part D3 covers facilities in operation but no longer discharging or needing permit coverage. Part D4 covers Stormwater Construction facilities where construction is complete and the site is stabilized. **Please answer questions as completely as possible to assist in timely approval of this termination request. X{ Dl. FACILITY IS NO LONGER IN OPERATION AT THIS LOCATION All activities and discharges at the identified site have ceased; all potential pollutant sources have been removed; all industrial wastes have been disposed of properly; all DMR's, Annual Reports, and other reports have been submitted; and all elements of a Stormwater Management Plan have been completed (if this applies). **FOR LAGOONS: please reference "information regarding Domestic Treatment Works Closure at Wastewater Treatment Facilities" Page 1 of 3 Dec 2014 COLORADO WATER QUALITY CONTROL DIVISION TERMINATION APPLICATION www.coloradowaterpermits.com D2. MINING FACILITY IS NO LONGER IN OPERATION AT THIS LOCATION. Sand and Gravel, Coal or Hard Rock Mining A. Mining operation is no longer discharging process/treated water. Bond has not been released by DRMS. A stormwater only permit is requested at this time. Attach application for Stormwater Only permit. B. Recta • n of mining site is completed. Bond has been r sed by DRMS. YES Attach a copy of the Bond release letter. 0 Explain below: C. Reclamation waste piles? ining site is complete. Is there any continued mine drainage? Eg. Adits or unreclaimed YES , Please explain, attach additional pages as necessary. D3. FACILITY IS STILL IN OPERATION BUT IS NO LONGER DISCHARGING OR NO LONGER NEEDS A PERMIT A. Facility continues to operate, however the activity producing the discharge has ceased (including changes in SIC Code resulting in change in duty to apply). B. Termination is based on alternate disposal of discharges (discharge is being disposed of in another way) a. Solid waste disposal unit (e.g. evaporative ponds) b. No Exposure Exclusion (for industrial stormwater facilities only.) NOX Number c. Combined with another authorized discharge. Permit Number d. Permit is not required (includes coverage by low risk policy, etc.) - please explain, attach additional pages if necessary C. PERMITTEE IS NO LONGER THE OWNER/OPERATOR OF THE SITE and all efforts have been made to transfer the permit to appropriate parties. Please attach copies of registered mail receipts, letters, etc. D4. STORMWATER CONSTRUCTION FACILITIES WHERE CONSTRUCTION IS COMPLETE (Select A, B, or C) A. SITE IS FINALLY STABILIZED OR CONSTRUCTION WAS NOT STARTED a. The permitted activities meet the requirements for FINAL stabilization in accordance with the permit, the Stormwater Management Plan, and as described ii item b. (explanation can be construction activities were not started). b. Describe the methods used to meet final stabilization. (Required) *Final Stabilization defined on page 3 Page 2 of 3 Dec 2014 COLORADO WATER QUALITY CONTROL DIVISION TERMINATION APPLICATION www coloradowaterpermits corn D4 STORMWATER CONSTRUCTION FACILITIES WHERE CONSTRUCTION IS COMPLETE (Continued) I I B ALTERNATIVE PERMIT COVERAGE OR FULL REASSIGNMENT a All ongoing construction activities including all disturbed areas, covered under the permit certification listed in Part B have coverage under a separate CDPS Stomwater Construction permit The Division's Reassignment form was used by the permittee to reassign all areas and activities b Permit certification number covering the ongoing activities (Required) C PERMITTEE IS NO LONGER THE OWNER OR OPERATOR OF THE FACILITY All efforts have been made to transfer the permit to appropriate parties Please attach copies of registered mail receipt, letters, etc *Final stabilization is reached when all ground surface disturbing activities at the site have been completed including removal of all temporary erosion and sediment control measure, and uniform vegetative cover has been established with an individual plant density of at least 70 percent of predisturbance levels, or equivalent permanent, physical erosion reduction methods have been employed PART E. CERTIFICATION SIGNATURE REQUIRED FOR ALL TERMINATION REQUESTS I certify under penalty of law that this document and all attachments were prepared under my direction and/or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who manage the system, or those individuals immediately responsible for gathering the information, the information submitted is to the best of my knowledge and belief, true, accurate, and complete I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations " (See 18 USC 1001 and 33 USC 1319) I certify that I am the legal representative of the above named company (PART B page 1) Applies to Stormwater Construction terminations I understand that by submitting this notice of termination, I am no longer authorized to discharge stormwater associated with construction activity by the general permit I understand that discharging pollutants in stormwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act Signature of Legally Responsible Party Date Signed Name (printed) Title Signatory requirements This termination request shall be signed, dated, and certified for accuracy by the permittee in accord with the following criteria 1 In the case of a corporation, by a principal executive officer of at least the level of vice-president, or his or her duly authorized representative, if such representative is responsible for the overall operation of the operation from which the discharge described herein originates, 2 In the case of a partnership, by a general partner, 3 In the case of a sole proprietorship, by the proprietor, 4 In the case of a municipal, state, or other public operation, by either a principal executive officer, ranking elected official, or other duly authorized employee Page 3 of 3 Dec 2014 Pliitk= 2 o1'22 Po int:t No. CUR 0J3tt1)t)c) (MPS OENERAL P1:t ≥att'f S )RM WA ASCII rSCII ARC; ES AS lOC IA FED \' I i CON STRU('Ti 0N ACTIVITY 1)11lORi'AT'lt?N TO DISc;IIARO UNDER 'HIE COLORADO DISL'1IARUE P1 RMIi'SYS'1"4M In c(nripltdnce with the pr0V14it)1iy cst tl , Colorado \Vatcr Quality Control Alit, (25-N, 10 I et CRS, 197; as :1riaotttiud) and the Fldt,..ral Water Pullatiti i c matt (}I Act, al's 1 nwnd;:d X 33 tj,S,t_`. 1251 et _scg1.; th. "A.et"'t, L1J., ,1ttilzsrr114: 1€147 Str.>t111Watt•t {.t1tlstrtictiol? c3tE11'ltic.r �:,'111t �1it'L111L 411c-)V.,sibl4r non-:,tt?£411.' Ater diseh atg4;, tit at.1:°RI:met with Part 1_17,.3 al" the peiMit} t.1'rt1114t1 tintkr pc:rnitt, Iru11t those locatit>rti spe.eitiatl thr>uglrmt the State cat Coloradu :4Y bpi; -4:15,,N.1 rm;Ater5 nl tltt; State Siacla c1Sschtttge$ ;tt11iIi b1 in 1,,ccortlaanct, b1Ail thtrCtSritittif,tt,,z,.I tht.5 permit, Ilii ps i�rt iijc^ally atttlxurif.o the taa4:iltty listed on page.` { td thi,] llcrinit to th :tiitig.t, as t,ittv, Haile, in act;sn'0at1t 4 bvttli pCrrnit 11;4;1'min-?Gllta and conditions- Forth in Parts 1 and 111,Lret>1; All dizic.fy.n e7, r. ailthcrrtrctl hut ein :,zt311 bc: et3nsi'3tent with the term, and conditions of ibis permit 1114i permit and the nuthot'nL.W nn in di$eltArgc ' hzt11 cApire Ut mitint 7ht, ,June 311, 2{112. 1 }ued 1.411d, i1s;ncd xhi; 1'' day or May, 2007 t.'U1.ORADO DEPARTMENT O1: 1't_ MJc' I1LA1.111 AND ENVIRONMENT J .tans:€ S, Kte,lar ? 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Psultrain, the it si_ ?itu1 ,r{ the t.uri;tlrt Own :iLlia ity TS atit1TcIS`!I'ed in Its,x'siotrLte tiletzsilvidte; d5,13+:l.tit:tl ttYill sni ii utlrl'1=ru4.11or) at.ttt iry '.l?tie[ 11514 ,1}ti 1�.'raI 1}4rr11rt v, ghoul rhf,1 tilltn itttsl of its; !I2}?iit.iil{741 eta the Del �} Applicable ' et'by it Qunlilying I ttt;,'1 I=rt)At.ou, only Porte IA I, I A 2, 1 A . I I) I . I 1.} 2. 11.3 I I),4. I T7 7, 1 is R, 1.t ),1 t, Lb, and P.irt R this prlTrlit. with Ow dsI-1.'t>ttt)li o1PitrR, Ii A 1, t! 13 1 It II i;' anti 11.13liL uppity PART I . Pettenir Page 4 Perini No. C(111,7030P00 • r o A. . 'aN t7 r .. THIS PERMIT (cotai) 1)P larai. Agiicy ;Ii tthority...I I`t �i -p;.N.rtnitt.ctc'ags opt. re-crnpc (te.. tp;,=.fictie Olt ftit h4)I'i!y. of 1' E'��R'. +:c�' cit' mttnt' dime.thitit,ts sto iflVt itt'f to-.5tortierditaiti:-systitms-ert outer cinitt tho #` it!#'i � 1E ,'iiiina, s�txs t coikoan. tam ii3fh#jo gu WIie . # it ! under.•li ital ng. 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Patei�xi�� ftt th a .r �gwty�uiwiit s ila! per PO i LAar1 e�� ii.l.S pe+.mi ; upon i.lw r!.'{T� teeth date of i4ur:. permit: c7•r W!c Mt , t,. ".A :sitb ;wipe•- wider plc: t �l:l r qci meatS ;: E` t i R p nnf (• ; t;: t..s it compty with locat i1. ;f3 ` wa'S4fr T .� F�i[�'; l L r'y , '� i ! ' �i� ,• ,i T1 '� • i• � tt: 4 t M►• L' i r•• i f � r (big 1otr� f rt .Org a rtt rt #ts t .tett.3s, :. • tiefc;i- t t � aij: �'lir. o.5t 4.re :a o: by. ; att : t. tip (bi ; pin ti. dife tiri te, Due Date.4: • V' •... Iicit#iOn• flu;, -Da i • . A•t• •Ic:3st Oftit-th The ttonintiititiii.tiitt fit' ;�, .k , ti i yzb i uti ni. :that tnthhthSt. an tt:ppl cttt ti ; loin risvideAt1w the Div with a: tarf • aj on s at the Sto•rsYtwiter M "ttnapartasit l Plan (.fi r Iv :P' • ei4 ,mitt att i One•orOnI.• «n2t# te.c tid1.-d nitir ►,...*- perm' ,C `� ��:}.1�E'F 'fit 3� ,i�'o'�t # #< #�ZIS.• by' Autifit h clarid.E Ew`}u`s'e y.,:tcs:• t~ oloracip ' : tt � �t#: !' t';, � i-tf,:• :ttlx.4inc411;1%• .rimnrrnr '(t "Valet. etJxtI t` ° £:`ontrol: r$ iith t . WO. CD -Pi libM:12 X 0(1 C I:er > *0Na: tt•tt1a• s E;t Suit S a -fay tir Aoplis 'h6Th6 :ipoi sc.t# t . • (onrw' iig ' ' I)* t" � '4 # o puny tiafr t; -► t; £rte_: e-tiitii : tilde . 'Ufa. t initabte)1; et.; e •is theown : devetn per. t.#r c: t tractnr:•.:t icl.m 'fc:t1 oft: ' • ; • isitoJe t t1 (1!!r: #t 4i$m, neat county and on oil the co l:tide dolt ittc, theitkling the S tit€ ffc .Ole. . 1100.1sit. t . 4iti&if;f. ti# t#rytii 1 man!. -center 'i'thc `ttlitiEftr uctiart•zaliV••iti ':'•. ▪ r I, egltt (kf 1 ter t'wf' tt r t t+•tetff#Nettig , t1 "a#IC- . "i.�.#'i3��.t�`# •�1 �''. ft #a' ��#t'f � �C}y�'� �t � ��# +- }(f +► 1 {! S i site .yi • I�� . � .: •Le�1_: ; Y ,t �y`j !i+ . � �• „ 4•) w1 s y. ;. t . . ► 7 i • r � .•,� Ei+[ •� ov f :the �ite dint is expeY'icd, to. be 1limilat :..7l' a -!e • {yS'•�l•� 3 act. e y) 1+F i W f i.�� •/ tr �i i1/ S V "►. �SJY� •l�s 1.1�• �71 •'`� f ''q Y +�( �•+�, 1•i }�'. fr ..;� x � ��y d`..•,�� y• J t r` � s � �s• .tx� the taiga* ci n3 v • tatt a e iopnw eft -O Alk t5. • ridtti n dthLur ifl :: . . 'he.fatuitt DI IUC•i.` nigruClion mct.i.vtt4';• . • ' 'fit •'l he ► tt.icipat gxa a &lit at#td flhm$ athh+.i. U:1fuf 3 ttt i 7 The:tattle. f'Ir ftiG:: 'mine ' !_ „ (#t' the. i. urtucipa3 r� '�.t'�i' i`s'� r.aigf win sireivt i``sti':;Wtee “rid : j• tcrtil met h;n (hat the:SWM •t* r die' o n5trtitah c'.!iit i cot'ttpk tt ,e*(, t: 'SLIo r: ;and CY.) :'11w ;i:{;tt tur'e :1ST thc •; t4 1.4201 t.' 5.iL04is , irt t; cto 'f ;Lflt:4+ .4Mth. F.1 trIT thb: •lr2tmif:, rt.tits• t en•e rat '.ii 3 . rth, ctath fbi thl' f #ticr:i 'crticititi 04," hgn: be: 4s3 ' •.6' c'at be ittithr rcizs,dd t ' ' dS; iarg,t• ththi wtzthr uu a tUt i .genext t per.Ofit.• . Riquvg*(t•r.Additinnal Inf n litionr•. L t.14,40. tot 'eez#ku tilt• t '•: 't r rec eipt: i� l ", tv•.• it; 1ct#'rt it.fie#tt adsi#data itifi l; t .iserly l:t`i� fit t'e�;�i ?£"#�� . rf' s#' s�� .artu': t.. sY'(iff-.4 4.egO:. >wtilt#i• f 1)Msir.?0 *stall have ran. additional iett calei tlar• 410365:i��f . �+�we i �`' in i ' k ;Itho ititi=IO U 1 w xt .p iirtithrtar di':charge- (litirrtificatItin.ofd nhil. • belly lent '. in I::. s t4.wNitti� t`�` �` �4�'ttf t'�� eti� inter iti �:eEt~tif' " �+�_ r tt f mitt rr.y j• �! ��G�4 f rry{ ,( 1` /_� t(� Cinder *� p, } ' pel :tit'ur i3n individual pc mitt ig req hhid•'. F{�3tI:rC?f►i• ofycot.(�.�. e. ZS�i �iOtm ty • PAR r i'tslilti - It e 5 Nr azn Ntf, { OR-0)1111PHi illirl itAt3I U,NDI'•It I1LlS#I'1t�,I)I ic.Iti7V-) Ili \tskflilcilJA' C 4t41rltgt.'.' b the ui7piteitit1 4InelS Jit)11Y'•t'etV: it rCil#k',Z car 1LtStlIE))1141 jf113,f1 1Vilrl 01.kt 1) 4)tl11C,tttixll 0: tfetlstki 1'r4'ssl the DiVl` u'i 4113h: w;t1)in t. t.w11tr14far Siit,`S f)I r4..., rl))t t11 IIsC ,{II#)!Mitl!}i1 tc 1)1NIgitf)i. latAOTWAtitili 4114 hon.,e ill ?IL A.a)1)()tltint9 of this I t nna',hail ? v live,,41}r.'.4 grosiir,'f1 4 t iV4lihAt1.51,11 ?wink Ittcktthted )1 i1I11i t'S,iltt,ziklu 111 [124 otiktitivii41 #I£i SW M11f, 11 I's f4)ti114I #)lrrf Jllj -WiltI1,{1 pi:Ira)! i, t)V1 ir1t11rcIs'1J idts,:ltlt lllc f3js1 ftlieisi, t1i n 11JZ i4I7ft1yi,11it'3b t'vf1) 174 I)riAt. i4ied .lro slut t(Ir itSt trt,j rtdu.t lti,!a.i)itt I h .ippitL`,tt)I 4Y 111 t7,' n olillcd Sat the 1,)mari i.0 . cIgL`i atun it' ctx,t4 dl'T4:ii4s.tt6F11 +ttid cr tb ! f�Fl4f:l 71pdrtlyit For It.% 3Jltlt' ){ilia) }ks;ri)ts1, it4ldtttfiniiI It)1sij7Jldtsuct rridy be r1:tltit::,tE't:t, :ir)(f i]sI14u} : 4ll:ly bC re.gt irL" i £ti_t p1tti3',. 11til {JI31111£',L%ltNn And mstbzJllt. p.'tilftt At tti5` 1)i vs.iun'''r tf1',1:tetam.letup ara1;1, 4t3A`t"irlgt.' lllult r 411,.,,J1.1:414.74,1 +_`t:tlit flVb' b ,tiltvoied until th'i." tuft a :' 4/en It'd() acted. it : � I F IVt.3LiL:1 jl4't'I`ll ? t -t tip Cit'Iii f 111 k'y. ti►JixVttjtt141 t't`fimt1il C alt et age-. An) )1Ct11)hy 1fltu j)l xrnit in* rt) be i.x►,It.tt1.ff I Irr1SIJ 1I,L LX)t'_s5= ,a tyi £1ii;. }14`1{)1{[ hy' 11 f3I1I!'mg 11%)1 tify syitilk i<ilkli ('I)N4 p1 rnuL. The pe;snIt.c..e >Fhtt]l `ttl)?ont +art ji'j{}eV'tt11s1[) itpj)Ilcittnn, V4J11t -.1tppt1I'nng the rix114'5t, t4 t1)k (,i14 ihliill ill 11.:.I14 !O (i.IVk Ilf;'iut to 4314 41tsL)I,t1'rtu, : ) Local Agency Attlltt}t'ttv'; �'IkI+Fy4tli:il ti()e4 i?tkt pro-t:inpl ot Aupo16,40: t)t1 oflilit11l1) ter Inca] Hgrns'ie..tt 1lsn1itEll„ rc.ba l_t_ U Lliittfi)1 tlihtlItilg4 is, of' '..10:r 41t14`i Ire StiOrrt iij;$1l ,.1`,rtt f1)n i)1 mho S4ati:r Ld?t1r53_5 'd:1t11iJ1 tllef' (L111Stile140,11. c Ia;Eititiv 4liun Ntltn When ci' it ' tJr£', <Len t i'!I4' 41;slllttlt.:f ir, ,)44c11{1)111{:;` 54 ill' the Wk11', llvortEsst's° mum InAILth,111o11 Notice filrti: Ow ). ,igita is ai:t:drrd:_ini.t: uil)s rF,lr 1,1t 1, Ist'tlltst petnnt •1 h; 11:! Ii Hi1ttiI1 )wt)t1 t iirirtt t5 1)Iu1tlltii ₹alai Lht I}tbi4LIJF? imllif 3n4lii(.1,:b 1°d'rtllii4:zrlfJ#4:iJ"Etl)Ii13:iFt]%IzJ' 1y) TI11- patlilitt4,,.'Ft tlsr373F, rltfrfrL'hS, telepl3)11t 13ssitibCf, ipeat1')?l. +111111:.3'tArliy 1i)o t L r)31Pubil5L13uoh'zttt' 111= eAuf.'11 rift4' In(i4-s,it:lll'3r) JI(u:lce [S )seffn-iubtrnue,&,:al:L dl f A:41f t1_`4LtI0l) I)ief: tllf' 241 L' 1'1,I;s 1)L"i:nf Ilnxlliy 511ib4Ii'4:d, and il I,Ie;tl 1'uYS11tt11 of ih tin kl 4#�;1ii)yrti[it�ti 3Tit'I.hud 1 7 ; giiPtib r f)f f'ct Mit 0.iwi?roibiliv :or a14rrl1₹itrt:i°x sly;"',«tialy fF4Y,tl rt C:473.StIlt£tyifn 'itl' LlttlllgL'y bin;) am... Cfyltfy l;s G13uy1E1ab, die 1)14)311ifed fail �1A1t1JJ1[ rI G1'I11piet(h1 Notice at T} ttwfel )11111 AccvplttnUi i !)C I t i tiac 14tuItl tltt1 i4 )£}'.hill to :}4r:S1i11tlitVt' tv'ttll Part 1,1', 1 iti 111.1r Cr'iSlifltl. '1'))c rrc4tlyIL'e Iirot) 'lu yt','x111,4i1ri 1Stlirt :114, ialti39:on ilt)fi }y7C11J 1i. 1} 1i4't islll c ertttic1L1ic n nilsnhcu' I3) )''i.titfgt, 133t,citTun, 41:'13 C,011131 .1 lr,tr 3tt,' :x}it i(l`u 3IItt1 Iltt Inc k1IunLt1 t17i` of I r;Sfi411r s� "Lilly, :11t1,s11f11' 4I, t 1 lt,tx'f1)11Ilriis{? Mir}yiti,13y'3)i f%n• 11)e ylL1t, Ii't'ltitt:e L i d 3t1 fl;s[l°tstl� ts,Ioni nlf�)sa tirr tits: ittt stt1:W01114;C; :rtttl Cr I. i1tetIGe ;llti, 4l;•'Ir:Isla{' i t1ii rti y4 ISI)ris1'r3i L I)tttl,' t4III not ;;st1)'j)ILxle the t£'dflcIei Icrffi), IIIL lit'ltt5rt lnkly 1'I J 1u)Jt., tTVsiled typt3s1 4YnHi rJ rs.i OL.'i1'{1 II?L' 1)1il'x)tili 11111 {_'4)1111)11°l11)A4 01, Not£4'.`. tI llif 1?ermittee ha;,- no lestrl$ rS,`.r,p{3nuiilitli'r IhriiJyh t3v:31LrrhipOs t, rtit-nJ, liir [iii_ zitII%,tititt'tytit) 11)..ti.gitrs Ail Ifltn' t!)tt, 117 t1)£'t t<infC t t ti:"Vy CSih11LI Lit' t:t1`a't;i£rlf'i'llt.ilfl be ieijltlrtd 10 st111:112 l emir)) ot3b•Jrry'��'4_' tf, It01 4}1;Itri14.'11t Dr Permit `IY1)s r) ,i pviir))$_Ce r n 1ti:li?tr hal; enat of tl1 it sgtcLtldc 11V1~;191 of £t ptrliaiti4.'d at , rind s%,141;,..-?,, to lysaf)5titx'< )!'.A111;'1' 411 that pOif Pttt1 ul i)1s• .lilt RI ?.' .itttxtlll Ilfi.ft'a, the 1y>'1,rtlltt:tl h))fill-11hritlt tt eA,}Plpie_t'fl Nt)lice 114 ittl) k,) 1tr)14s1t Or Pr,:rmit Coverage I01LiJ 111at is:i,'�'1s•LI lit L'et'Ctt,iljl\i.t. With 1',111 i,1� 1, of -this pc rinli. I 11bitlitt'L` of R.ft;iti"i; ibrtVl11 {t i''earif Ctt5t i A La. 1015 2 L as:11;1n1 k 1rsrae.1fli tli4l,1nnn t1n,? iitx 11)sIL'r, J.) t,L1Xlen' pi.JiliII curiffil,ltial1 3SLisltlitt, 11} 1:?,e5.1i1Y1rt_.; til'sW111111Ig11 iln?1 Lt'ttiii1:t1.11! L «i4 r1.'tlitirif41 by I,iITI I, -N. Lb for tilt new pommel!, L) Id::ttt,, Jig. in11)ril11 {bon) for Silt 411s1tn'1 pet`tttirT_L4, rows+iti1'4ite ITTf4WflltiIJ=!1P dt1i1 Ct.ftit11r,ttitsf ku r..•i'1h.Llia,ivsit; ,05d 4.1) 1'tf•_'L`1iLt; il:if" tli'T₹:u),5bl�f11n t.l11_ AR� Pnt`t1 i : • P; S.'e. F}'trrni#.(.71.)5170(.1091) )r/4. COvtatyft£,3f: L,INDE R.ritFUS .PIU4. o i •• het na• •• •�� t spc • nt is 1e' trty ' 1 `iI ��t.:s itittIplettiy. the r t.as_c{wtn :Ait. f rnIt•t w upp tit the pcnu itf-rsi: tIEZ. be - '.f urtic1 cels t rtiti . ti 1 iil \i'R,itifwr�.n rot xt n 1)i viNirm I >'the ennitice 3olegal: Seri ons iIky;. jai 1 izi E t tile. Cott ix -uet mn-:n(Ts'1tnv%% at. t : p ntiot if''the t. Ett t ti ► ist, the nitew. pttr,c1tsf-. • Wc#tt1 t*-rttttifitt otnain' pen t. '�~fi Ve rIo ' t.tiir44e1v.: n j S•ii*s t t4i cidtr in � t ht'`r'ny ne ..Nwrdd,.vw�lre Lji.�lr flat. w ice. LI Iti...r+..r.>...++�r.+..� - Vert.. 'For re.4ith� U.1:�t# •cnnt rt;cwt.t � � unk 's .whhcn u rt siddt:ffs: Ed Julhas been- conveyed to a or t'nwm rind itI •crucru in cm!ty r p� k, • •{ ! '� •� � ) t ` „"`. iI ''"' pc j � r ' '• t .f ! .`� .t i and {_hit ! Yi '� 'toy � /± J I l -a � t��tt ,i i.2.), -.11:1010v, 'ate F; tt� r... cn nra tJ• ntkr [his pcnn a _� .�s4 { s �t .r rciiut � � anu •CtifI a yi.td fi t. soy • be •:r� �cw cti.::m y cnve'rit i`-U;xt41e1•th e #HO S: ccrlifj.t:•aliots%- , is € 1; .ticttbt the.pgtr.rtittec 1 ft} loser recp.civI< lc Enr;netting: the cnrE ley t4 fit, 'iiv0-lt.iding I cY r `tj uitori43t!. ct (ramsf 'r crt t `f4qg t pc atit.03v'&1:t ge;,. ttti ' fbw' Hi al iwit igh o ti* on i Vital CdXI a li ion k► ' the. lot has been fiekid. in. tiii hhiv mitctwnc*i` :i) iklt priv:i*u:. sIiih tr;31 li e.p, ••1l`i'• -•itelot IPA_ ISiAstl«n'tii•s •pp ` .41)•:* 111:cot grUC# kin n 'act pityo cws,. uck d ,y :th•e• pe i ktt` on: the lilt i;{�n I&d - 4) ' - 'ia c ettiflc !• 111 nc 't ttcc (sir 440,1l vat tiny hit `€i'i'i aiyart ed Silt' hon g:a\:'Y et; -401d- '4::)'•:: 'the °S•WMP hpikbo.fitteneii.tkil so tnd Ei it+, thiat. lc.4t: i : Po. longer. vcrii!' by r tit. 1,:oiri•noot. r'tlgL n i o' the: :t sy° 'critkn'ta rc* ui5i 1:01-1( �.f ,. s •� i is €'Age:. flo cvct. ii pthnit:*etiverap 11/4 A; 7,- 3AEiov. or ret '4i ne (;t3 #.- # .A::: ab=ove) to or-opdrtt:4': *1 i:• • * 1;• .ffrtil t- tie. - . inWer.0S1:14 gisnwuti E .g! rtiti: t: 1uif fy, 3t '` 't tt . tit.. ' #. . 20 l :14 . the in (nit .4'aIt tiiw-'an: l'%_':E•554102 this. gametal Permit €ItWLt •env r ' 11�'t e ygam' told •#i11.f ft. ; tw i I the puiriitt `.•..itcii )rity cn 'diwwhar 4t~' undcr t!'ic f.s j1 ry " i l 'i .•. � Nutt dine.; . .M S'f• ',t. � a i:i ;' •,,; .« ` •* f '• '' ' tt� � ' , gNi3�nis permit a _tut t€ine.. TItirre'� ire,. E K.[�f!'til.l�i� �► .�.�i`{3� t. ? rf .11 i ..'� L # z;Lg4• tiro 4er the €' cnit. permit it{.i M 3'e;ip-p}I ` 13; - i -ti ':314 201'2%. The Div.ifiititi 1,4411 irtitiiiit tim tsfflC Wfca1• (uucc ;:• ,Set °e � 'tt it k siw p r aft# t: -y :. r--pOIIS i1it ' t{ . L m%tiff titu '# a NrIt wa1 hi: •biti ci't it vll tierribiitttie may curi..intio (r.(ri orde itt •41i} dci' 1,ity' at:At% 9!H!:ent11 3'1i it? ;i', Att. v'tdttai ��k;.T't�iit ';ily be, requited for tar./ rtl(Lrflty { et a.!'{.`.L*Iit {l�K�"it):Fi'l;S kit #i��' Z`: EtA itktf'th e :genen a1•pisfe-Et-,. ... • 0Ii;s critt#iil- Ca bit (ie I. t '1":l ti'.;I '1t ..Witt,th "+ { jl� ti:'s. ti 'C E ►'i.{ it I {i r' 4 ernzji * !Zt flCfcis pc#'raft Lr Sett• • ... •ire l?�• . • a ).• • • . 0'tj� ps thfw•gcuw a3 potwiti. Thin tn1or#:#;#tinri mny:•'Ytnie frum th iipptic;3tior.14:S %'J•P_ or 3ddlitinft, i ifbfitiiatin rr as ri:q €ie` I.4ii1.b.y.. • e f)ivisjsv , and fitelli‹.1e&; trai4.4 z � .tit::'' lgtuiif tt'f: *6f the tecc33ving.14'ii:; �l`Y� i'. '►; 111,or dilwiltdrOittit f1 f1,3fifits. . •tor•pNset'vatic'!n of. 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P !hat cunld t.'t)1)tYilmie riollot,ln1 . to r:islofl, r4UL11 rsrtJLGtlurel, ui 3!,J.cLruuliLttnt £t71.'.ter'riak 1 rlttlil s1J, 1! d� s?t,jSik• SJ 4tL)t•iwe t)!'11s11jd1lni; linnet h.sl :, j3'gI1lt!v+-rl£)d •,ohI I1Lf, 1' rij$ile'.t' or ellerr}ienl!, wmar [notarial; and eiitill)rociti iThitrl#errirtec+tf tuclit Ilror>«tlitTLir, AnP4I4 lit pxl eecitirtsal iA 4Y}tk i s JlOti~31t33!1 '1)1114 £3411 ti£ ti.ut 131131�t I i c i,: ,,p4I1 Jlr{„i'4;r1t3u; and r ,5pi..mS£ 1J3IJtiCilillk'e f##rriliil,ii$ m 13h' '1W NW 5, rmzi1,.qi{'Li f�tttts rt'!rl t�� <�;,lk ll# ij}S: l'€�l1Gr_ 1 -he SVie tip dent.-nh pr rc,tib-t i itil}ilt'titented at 41;4 ,•,ttg to to nlro1 3LQr1I)V413tet (litatu1) Fri i#l) delis :.lted et)ot-reef 17,134€1 Ii;rlint!, 4ir delairrut;t1 .L5ldtAI3 1r 4E11t !)ialif'i I, 04 it i li) t}Iii 4,i•rtili..ultnn () \_ii !k'ish,k41:t ,C'nlit4 shall clearly deJ,crll)i=.anti liti.ase ;tll pl.tctis:t_ 1J11t1IosleriiiAl it the ,'sly. lri L.Ontrol p t. (iui#St (,3i',4'7!,Lrgci trim vehicle trot:1%311^, liziictaLtn !)iU be it})r>IJr»kzot;t1 fin all 13olenti tI WL'l}ILl1' 1rkieltJJlw(,e .trtd C,},11',treet �1+,e4.piii;? or .,..ra;"7ili,{,, If t: J/ IIi l}i14�tii Lrsl'{' led J9: rioniA Litt t#,, fetilAtii)1? {I1 rJ, 4+_'ISi6ItS V.:1i {lf1 ii-' u tS ,cS#1 r�ii7.=, +�ketlilrEi tin d3'G.'itl,Jil+ 11r:J2,'nr 3,>edirocnr Lililtrul 3 ill,' f 1313 , 1) Wow rtsTI)s',its»I,t,icittdtiw,t'licfc'rr4.t131,},y#1;)#!i $'Jliv 9P +tl)1!Jl ciedrly d ALrlhe artil tit)tatOlb: i)tvi!')i 913: 134th to cv)Jltrt)J 4()ral;i4_ItLI F11144131131 3 1131 Iriin1 A#, # L4tII &to lIun Jrii.; t 'a 1S i (T`.t;ud! and 5i1J!d tilcludiin,!, t;f3,373 t''It,aitiitrs, ;E;,;1t,11t+.w, ti) tIi1 }`+ribs iLer,1rii'i1 firr „on,3rele Li'u ilniy1 MEVt (:f1',1!re• that rttC5i' BC;141SJ£:4 4do 11in l.''tlSli in 1114: n irJlytttioll of tliiltttt iill;s ,)44414`l,tli:4'LJ1I7 llt4 A4sJ°rJllfit: Lli_l14 it4 i.il .fil£1FIIl`rtdiif P_'J1117} 11IJ lydi, l_$), ].4 of :be l)Lir1)21 r14Jt}IIii#ft 5131311, t nthL!un:313 nxisclL1I `L £51 •'11 esi.#L,`. 4Y`,.'.`rl1LJt!I whet fi3 Fiji: tirE)tineei IJls:;ball ,isi41 lii;J5tt• the praLtli.L''s to tie!15t'£i,that. wilt !1lrzitJeilia: no i'itl4J)L3tat '4%31(1 tti ! 1 Lo mtereie 113. ithim' J!. tl4 rtr4`)e 4 i LJr§CI1,LIred from dine SrtL.fh illrJr3t 4'L1I L3I1 11r 331'4'trl.44t! f=t ecr }7y"tthit r1A, !1 €`1II JSf�' 4a�I' ,IIt31€ t 14 liJY ( owrib ,iIld IUL ,ti; the inAtUirey, Ii3J#Jt'a'int ri1Ld iii the wit; III C()ilti4)l oJIII:tiei!LJ Nil 01419 iron: tilt. Llti'a4�ttl:r)ti? Of iiitroiU llfti iii itIISIIi1:,ItLT 13lJFii L°;u<JL' 11111{7'.� lYltlli vieti) iiiirs t 1),„ d PI the pCrtl,it L tI1 {II IFc. 13'10 4.t1iLST1}It`!#1d€ tI'{'t},11Sui"tt;° 43f IIUL14irliCliCA) 4d1`SSLi eni1+4 to the L'duundl_ 1`IL,T at1V olf'Lr€1Cti4:0 tll„? l4 LI,'faf,l1111>,4a!C; not 41kitliortted uncle; ortyjil!I,1lr: ('4. I'S IJr'at`1.,isee: ent.11, yJt �Y$11�-ih4t1! sar; lirly Lt �t`e3}ls nod lS)t.iT.c` l'fi: pr:s!tice , if) t';,,,? itak'il itL,E# w l I eipitur that no yrirul-1 .iwtjtur I'rI}lt1 coiilr$nuc11011 L1'00t4,14;s'13t1? Jet di'+chn1'!_.r,ed 11-4W1 the fi.+ #A+,tlfflu:V. Sibl1#)I1 1;11 to *,.ti 4 Final SIribllijaldou and Liu 3esin S i)T am 114411 'Alan 4I1nl:ut ii) the WNW -Mitt' I.IG-rl ' de%A#1)t.;h,, Jacll4ti9, ia5l:;'1,1313161;$1Jvdc I6i131 -441111l/41.14illi nl 111]. mg! III« 5siw, and any 2JIannt.{ ciii);Ltleei, In eAon Lot tJ41I1ul.tlt) in Mtn1n3w1nt41f CI#`ttiI3a1_+ei that 'will of utlr altet u.t)i1,trt1Ct}{)fl s)ciertltit)tl3 1a%e' been Ln371jttetal at the i1L lit 1'1(SaI 41a1t!!Ll_liim; pi.ieni..-', 1[}; itlilaTITltllt{ it tit:F'4I,it1'. co;,erIl)l;, -.L`1Cuolt);1.1n:! Eti3pi!eat Litt !ul:.1100•,: $£3JJ piepaii,lt4ett 13'41113 Ilrrt4r#<1111t:IntS, ,L141)+IJfaill£,1n I>r.1cJ.E4;+ 4 (e,z..:l 11,7 J?ttiiS }t5:.5Y> hiDWI-, Il or riOltli 1+815 11x1 control I4LodoLit,#1 •uud al)preipri.tll. •.* d1Enrni t£Ii1!3('C #3134{17`= 1S i`L`ided f.lil'iI E111 Sl'I!il'SJ}I •iilittJ> ei ,it'II14'ved . t'J PA R.T. -1 .s oRM WATER• MAMACi .ttflEN€. PLAN S WNI }- CONTE YTS • (cont.)) jib stiibi1 t;Li'Etyfi is re' ichti �r�, 3E'�#1 i¢�k�r��ti► ;#�xs ;r di'Auti i itig. :. v i its sir tIne:•• s havc2 tweti jis . - . ... • • •� • � '' rfnitorm•�.vcsc tnt•i�:vt•cov :r h t b ythait#3#L5#S with. inndivw w �u pilau 4'00it at :it: roam 70 purer?tuu. ctt prod. - #. tier - tr cc levtth , cw atitivalent pc.rnit fltt'$g. r s , t } sti I*100 ken mohoilir.bit\et Nen vn iloyfri : • 1)ivi titi i-t• e'rrc perrn3tte; -a d'upk''nn ;zitit d t hi' f it)I. i ifii i..:tt:soc• U01t4:illt it •„"Y' I3 i ibisetiflc I7 . eratinr : ... - 5;•-. In twction hind Mainten nc .P-tr't 1:16 of the_ per n it: i c ituk : rcq#tt r•4 two t m. licit to art 1,0;7 :bit dc• ritirtl=t iricittr. cs tiginittn14:rith. ihr BM y :� .;t:ittt }t; :rte• ��. � ` t ,: pr'Mititu.tit tks=dtts ttic- tnspt'c:t or'.atn(1 n3aittteit trace priwet,i e: iiuptcr ts.rttdi a!, the 'Site. ;�.;f tt •c � ;.:i�, i�. #rt . t41111.0::' Ptrot pvnwi.#1:::: ' (111 (1 QXU w r PrettlItti.14,0 .prieii #l4:(# n tile- and 1)'.. TERMS AND CONDITIONS M g-fc'afIty,tifri #€ stt`:� �tY`} t# : t is '.tt# 'f !tdi rp �� L'Ai •b k' ti::t•• ;f E; :•' 4wr€$ w'i tizr: disclwitrgcr• ' 4# i i.Jniflruartitin:- ";#: g.Y. 'va} e• (h i! rea3 na:- Otte € ifil th; :o#. • ii-tinibly •tontri buti t tii•# c:tE:.td ni: .f it ri y wite#' quLJiI y & if_t is.id # ft• 't?iFter • I. : • OritSw s# fIi{'nit: wi$ltsi. " ; hti .n€it. big disc F€ wgei3 Ida rats: ssyt;r szv a %sati s -OF f� 3tOr€m &cw•er: ctexas ' n-s#Ue•• v � - b � ' �� S .,Y - ► Y 1 `� f 7 Ii � /� 14• F• �� iI i this ♦ r 1 Discharge yi �r .�-'��+�A' �1t C•�ti� ,[fit{{I ffC fftt 'vr l')=T :t'tnittliot dt c•t pit t.)( me •i.h;. ww hc, #4t wi ..s1 - lAi.ac .•� tit:hor ud by. hip nniiii- Disch�arg to ehae g oubd £)J�•L SJtrt'�..#I�•. �jl;�:',�?p it . � `;3 F� i ai :11: ti :�r#:� s t � � :: k {' xr.'0 of ) i S`Jsitt.7 i r ; ith;.t 'is �`d t y [ i; pv r nut.•r.' :five.Part. I.:4. 1:3 ac• of 1ht permit t ) :Rut » -:st(Ta .tt1t:ttirtsati kinit.tro Lawn •pr(-sdLLC! any ath G ' lifha # #•E;tvV.- : O xiir 4$ary• inn latitince0t: qt'. . protthit tkoil. , M►'. ; try ep fiti in .at V t 1k;.' and i «!3'E' �f.' €. ?,:Si ti 'wi ere - • :N* 1.4116 Sic d:i- #i tc is sidd d lo•I • the (tkch rct itn1c.{"��: fr� �!�l.;d<nt ear Oialit'fea1 S gft ntt≥d by tit. • {. •#s'fgfoil► ci 's7►ratletihi t e Qs -c• of •such t►; �`{1 t1.`ss#�tii :sp'io t1:i'oi siiiiii*,3-;--il' i s nnnItctt61i ; i`tf;ty .:►r S etc.c'u d kty• scpnfte- t:i wf =,cat fld{!'lei. . SiIti •vision ' '#.r' i ,'S th fight i�:E€ui : �Ef�� jj . m fL'; EE��:: C:t#'� �f �: is=t� -i�: 3ri t?s`: ##, ti1L•rc: ' thtrit- f:r4 • its , t t irft • #.tl� ' . (inn tits: ?I ;rit `-wt'th the SWNIP h El pf oh is#Il,•-tn u> f rn faire to ilv siec:f; atom th ` Psi 1':�,' it • pis rink 1f8•ItO titatmi-tn t try '{'. �t tf. _':� ��;h-moltii06'r t may E Ibthfrcnt 'lox iti y 1.641144; ' AU !IIU! wcis?fits wits( ofor•.wly Sinned t-1”-.4tV t# tsiti .t pc{!tth fit of S tit t4.4. =ilt ;t'Y: '1•11{s. pc it-tfoiy:; go ..ituth itr#•ze• n, stte. w ggre did} ,; . . All diiici'itirx s.'#' f€i '�l: �::� s }3 `'whh theIuwb'tif# -' °L;t€ 'eiriett(i.uf.F ' lvt;.E lk : �f�r�iw a.3 �t�t�%irf iii. � :s�` ;. Vii.# � ti �::titainae • tiI ;trict5 .ctrt other Ictiia.l agc ncie.5 -rtrottlit.t aft y . ottil W`tt?t'I' (0,1{1€•$rl.fl •sy!4teriti.i. osf' Other' water un-E .thici� • iu rt5t ctf:tfn; •in- luthng npp(Ieat *e in :TSIu nwtp;it gortlis4I e.t titittagi:mc is prdgr aias 'rls,4'el t'�pt d to ctlittp y -Ott. f1'4 t& r i N I r'S eri; rOtui 'FxsttpFy 4N i({'i ltaseiii -4t.t r t 3tmitir tlip►nitae ,;tt t. � �- JV .. Y A N - IY :ry uii.remt nIc, -pcifk k ,c. rirguidi!I f ineluding comic ri.:.tzit t.difttetti U r,�tt •f� � faf f�.1utpti*rnu, rittiti n a id fl 4•g it Stand:1vv41 �' ff.i � t� Y t i �r s [t: f;�� f•# t~#fit: Affil# ; ff . se • LiptIfftfiffte..t•yi irut ct t tti4 •ring. � • Y t � � v � • r � � Y .•y' i 'i s' a?•1 i it �'ir � b ^1 - � � e. ►� w tit! pradit.ys:... ? X41.. iron tetiteni:�c t: .: . f ft . t :�i � �., riJ �x s t't S tinsvir etttrt4. for • :r& ttlir;icitg;t u ct t with -ci'ifhs i ct i4'i s'ticticity •UR 'wen 3 at p gt.ititul- { i`'#: ' �"iE{pit .ii: ' 6f.S4d ttttS; . PART 1i J-li l J t1 t, 11 Per atiK 4y {_'t,11#4130114 ANN) c.'ON1)11 i() i' ictti#i.3 Prohibition to ,off-Stiirrit►riiuer t)i rkt,,)ri;,ry5 ,J) t,'*,t_ept 4I 11:#)V'ittvtt U' p.lrt'iitsttpiT b. i, ai)I1 li bds,w4c, JI11 tliseharg 5 eri.i'i7L`;i by $bii i)L'i'tii€t hill fit torril?#)4eil entif{:I r ul %Ivanitklltei Itmociatot With Citijislivelioir asti it% i}1Llutlia'L`tfi'_t14izal t}1,14.gt thcitr s1t11'rl,tyLilt_I IlkuNL be :1001'0 s,,:0 in n -.:1ru ale CI )P i petmi)1t # , :tit°d fur thif# do,Ll36L1 L' Ii) jronl till; 1)ov inL' coat:te n that 111e t.tirilhlro,0 tliih 11JTratt.JO1!1 th,te lti[_',cr`, d1s7k) 4,:ttui with {,;l'#;,Iriiction +16 i1i'ltv11s1=k'tl3IttitilositedI1',0)1,1)eri)t \itiedtl).itE}lxrrtlsl-,,tl3r #:G73L. ' .:ta)lipertent.31" the f3racl),i#'SZ«J:is'Jiilltull fir J111k ; s, ;411' 4'iee I'tt31 ICI 0, of lh pet oltt)' T emerl<fc:nt.y firs figitii311 dot t'1.t i l+'tJtt:iLjllF4 :11 igalatilt ream flow —tin40404%44IJt3tbatd �7}#Ji1Sw� Uri:1141J zgti IL# 1113' giuudELl44t 3..0)i1LJt€ 't§=itihhoi. lot)1 i in#i o ciluli.5 may lie ilutlJf)ri,t d 1}4 thi,, Il4'#lilt!, prga't(k d it 1) Lls-°ai„£aJt.a sir J;t4Bitllittj Jn ttit:,‘ 4'di`tll'; 2) Lit,fl i ZIrtt 111313!311 {1 iti iliV iPYr 11,31' ]J1 aLu ordl;lio...: , y£th Part l.t,•. fIt )i7 J and S1P 171 V.tsJJ poll£ftnn.. 111 groi111th7 tiiii' t,,ilo.11a'n ,,i I'ri1't l 1.) 1„ r, rist-t# Ihese tiitt{-liziv..1. t1t) 41W 1;tit.e 11.0 .ilC tts, ruiioii or to +tttr at;- S4.itet.t Fl} 1 }354'1-ktritt.s to tl1E` IiJI#1,4 s,i V..tIi`1 fr(f#11 r.'J,YJiitt#i#.C.l,:,ci &A+ it,e.„ may N. L:1111#i# #/LA b) iii #Ailk i Lot I, TTfl1 1rl.:d that. I ) 1he ititire Th Irnintri.kvat.!r arnii ri nit iuurid%met Lotri}aint•tl . s h 'r(L#^"t131snEt:r thin :1{ , nor s.33urant pt,I(ut..11t u# J`t)1Jt`rniltalmot, xeo„t;editILE the SJ:.au gir31ffniwaius t,Jiui-iiltd'e in fstggtsl,ial,i;'. 5 C't_&t 11)#)? -41 laud 42. tlsL° n►+litwr ;.; Jt3t"aiitl-rcn4 in O ti' MIX, 3r Mai MT: Ineitltletl 10 in SliA NEP, i;&, required by Pin I t'_ ;ti}(8), and 'Y) t!) i Lii.CjJ'$ig.;r itti iul lL`fiYi 3119 srLi: t;4 SIB l.J#2e. rU 3ff t? t t u} t4t1Sin, t.5.' w ll> ytt l)1ss; nIkIi•;, le the l;Int ral liti#ii tlim*Trist.ften tit'Lt nu,ii,4:.t!'r'iil1 II14:0 do not J71Lk'1, 1134 tibtA ;;,T't;Irtit 111tist I):` {.t14t` til tindCi i1 SL :Intie 1 It'tS 4to,I.I1,4r}r, (tii'uwrunitcd S,,rQuJ)0tera:ei rinlistunIaj t ttl't`i.1 C r:i'st1;:t i3 i Ihlf z ll t'1)JiiS Ll),c1i.;l�`4 pertni: 11'-1(1 ini.tnttc knn#nt145.,its'r t;i)ntnm haled Lvllii pollutatus, 13Yu)t a 11;44101-411, n i# n s)1:tt 1J;, twin3Jrial j341lltfi SJ1: pi£'J33t^, ttnok=twlintufl 4Esn iitri}r. i'r tit}►rr ssaLriJ t t f h.to a<'-5 tii ISxt'4J,s or Repot table Ouaitthle.t "I ltls peltiilt ttiic'f not re'te,.sb tl)c prt:rnitiii Llii: i clit:n , Jt;tliJ#1wisiatt5 0' 40 {'1' R I I il, -IQ C.Tit 1 l 7 ur sO C rIt 1112 -.tut, ti,.4Cfl.'ir2c. cif{if ImtAJ'Lirt7tl'r #ji)tt,�t{-'ri,tl(lr)lu'�t 11C #r,ansll{;£1 in ritteu#'diiris.C 5.3#tt ibe- 1)i'.I I4n1'•l Ntit34i1:£.Tipli.irii:i 141t$115t.L'111"n ictquire!Iteln;€'fko Pot ILA, ril'tiw {wrmi#t1 SIVAIP Reciu€1•einotio. lt) Ski MP iiripuratia)1 ittid lliljJl6'Jit iStaJiil'L), "The . 'r'`MP 4fiall 1si' p; {!lx Iieki lYnur to ,1J11)I)ril),Irst l,AiVt.stiaJ.' stI)I 1 11)3` 'encr.:1 per1S141, and ettil tt:i:110;1 ti#'tt, i:tiitlpltiuoii -PINT:stied t4#1#1 ti aipl)IJir4iJJi}1l, I"lt;. ≥sWlril) Jtri#iik;r#rt;ilSL',,) 1't#iot Iil-`tIJJ)J)Jttl≥;iitt44Jit of L{tfr'ttt ia,6of 13t`. I LiC plan ' 1111 I)t: ul'st1,tivc1 #J:}, :tl'+iiYii i.iin (••t;t p_iraeri;tih . ticliii4 j holey,') ;•r V \Jn pis.#t.>;-,1it'i UJUTI1 im)1J.itunn o' 1,1=1tt#r,tt1{,tJ s)t ponria Ittst'It1,t s: 11} sir1 MP itrizali{ttl IZL-[ItilrensL`#t$ i;uis} ttl'tot ii4S'la€!s nu,i i.`retaine i hl‘,itl Atla r13�sN141i`tI IJy 11wpk.rinilble, u.approtQLby (lie i)11i'.In #, j SWl'+1}A 13`YiCri91C'Iiiiii L't 11w 1)Llailu 'v.4n dL iarr34` ttl J1t{. ^t4JtfN11) I i 54111-#1 ll3iill V11,1115.11: 0 ifk Lli4#S i1, ii in.1l'l n,1Jf,IL, #,iptiylttnn, or rnis1i'tcfalirwt' {7t LI)l .1E4, whim ' t4t4Iti rcal,me Ills, iotrtltrlit..'Jiti11413) oI•r#. w f)r read 11t1114, 21 It Ow pros at. to Ire JnalTe1:,iliku in ,#t b4:.cl#i, Ij)t [1t #1!"Fi4I r bjl`f'tl` C'4 ftit tiC'1iIr }11JF11i lll,illi'i'1i . tit ili 1'isV it4',r °t1•.C`.Ii;JL t'.9iiti+,£tn;.,11sil'. ii;1 eillictiletleal mob tay: Lni ['Alit Pof •wPi i.t 1:.,2 P'cr£a it: Nth, CU .'0 0090 .?. Tt R ►•I*;•.A' :) :. NPr rIONS (12.004) •-otrhLn gr .N acre 0.1.kMiecr occe=cmttr~r ;md are rti'sns ved. • •-S\V'rvt.t' •t i; #i•cztYs tit En the !t•ltt•tffdit 9fs,, 1066.: pm;L. helms'. • � .�i f � rcvtioFi.5. -£=£ ty inctt3C 4wbut I:m.3: ot. :U 1 #i3fu: potential pollu f.aurtC Fdeitti (bi l£tml ,beict t tPf :tppfo •t iat•x c-irruiRinc : 13MPP mi'ffinuvcc p tcvd unzn and nfvytitii "DM finAt ithilisabb(,Y•praitfi *-i Nr r Oy • M . ; ♦ •. • � Y ► Thriftier � r jdesign• w I .• r i ;� A � , a `, f' If .' Thu W.MP tWW .Us•.sta r..tOude .i� s heduk flit J rtft,.r 1 MP and ii.� pitgant :.,firm; l� d � � ha€� i. �itty • .M C • .. N I �.� 15. �J �• �..i l �;:..�Y tI •M ,• rrY •Y cart 13 M Pc' ar neb'dd tt tiff tr0T . Iy with tbt • t t m l L they. are. #fir#'x s�i�, t �i;. r r iii r ' the: mtcru.£n.• period,. } ...RSp c t -SWMP*C ag :: SW.M! chtingS r:Idt S!itfl t i d k}ritrtplkt: rit. ti .:a. often'. ' . ' I'' L � r y, a r 1 a . : •a - W r1 • v � t a a ► ? • fC r� • : � t � t � a t. • w t •J The • qui.rcd to t•e if�ttrdein respor� •'to cltdfgz£1g conditiKfns% fir when c rrerti: LIMPF.# #i t i ,ititit"it.1i Ut3C11i!�,ti t. ' 3t'�tt,, n-Kij ?My' er•S' ►'c1.M.E r viiierts'ticitesri these' changes- can .<i'e;;• nstick famed kic ►, ''u/oh quick ii'iachiAttlif tisri 't.£?f 4 .he. S WMPzi. .I££' tiy-kiss ii'nn m nn 5c',fl Trio• i I;e mom 4tgA Vlo.mex 1. f. f'.£:F.4i#orr3its.i1 Modify' 1 dia'y chtirr'•8•V M.P • tigOlesicaryt S\VMI atoll • .ry.made c£t•atc; tt m3 ewit . d•tc' lot k ewtiig mIx;iftr1 tnt:{ : .i c SVAIlt'Khalt tit* ;tntt ease mt1cwt! to 'I1 iouir' eitta r the'c1uzn ti ►j in. II MP iii: titi :ittoti.nn Winn' j nett r`' itta.`.7 ;• ' i:C3n''At ttt :-,'It#.f• an" •.: • • 0:: MUM: be included in. the. -SNV prior- tit rho fEt-gyilo that it 1.ude%nthe him nate fthE'. tw ;t�•t c: ' ' t t�} fiekt .•an .tenth ! tint itr•tihe I•i%IP#'? rI reittoved'or tided,, and the toc:;tiob girth sti. :RMS. :'t. .464.4 -pet -tit! 0, .; • Sfte I� spial t 3. 'i . '. �; }3 Ear 4 � s3 • # :;:OPI the COI USfm 'a tititi t'tnm.tts arid 111 i clitt rti :'•1i`.hL!!£dttt6 , The ib.e41t1 rid - Tai.tfttllbTt1•insrcction•• NChed t I kti do not rt:dttce: or d intittAteztitil ptrnii twief4iresporis;ibility 1t? impk :tt w .t ai%rd inaihtgtitt.:��. •.: « r t � {� } •♦k'' • try � � ►' GPs 1 . � with the ,1�� C'' r 1i • •t ' • � 4 r i '� !' d{ • 'it: i;it,d.:.tticI. et ctt+a• t,nttionliI c..� ndit on. and #r�.accoixfL€ncit'��sith t e SW Mt . whtc could r t fit.#iiu more f.t- . qt •srt Thg p r i t !:l'wck tti: a miiiinu#w# t cY }k :.•U thoruktvj; instuNfilikt, in lfixtgt•dmic rL4 uireiI I.£i#fir .in..I_D•0_h b&#itsw7 at.....'i;4.E:h:'c:0 14 ci:t04fii 40i1:, cvetlt, • inin s[ NV -conducted Witt! in. 4. Julia aftpir the inri ftli•aity f tt!ct{lrftkttt4fl *Or snowity:It.•iu ttt •#hit :41: . surfbtz Pity titi: • ap in t;rkitt_, .the rost - ;tmin • ins ay -h►tt: st.tti to .IhU ill the lit -Arty rouble le requiretrielat A mare #r'equent: i iftr t.sis .it *mselvdtil • tlifin lb 0• Sohn u i!T≤t't tt, o ,E: dest'ritf',.rj only be iiiietrewtry4 t �' • � t,� � 1 Cv w • 1 1 • w T P •tr1 f • v .r : - , � • � T L r I .. -: � �. : .f i .f....• •+.. � ... L'fl Sii l:. t3f:St. fl P.f .rf.eirflnntue Cu: n crate as•tetkvi •�e� tn• come t 'tii�'ikh tFn pE'TTltit. e ibl 3.i '4. ng dt. nt i.t'in iat moth` cut.irvmi tr ' C r � ' .�•r w•• '• i - Y • r w. •4U #.tiih:► i�� ini.i!iiii1) in :!.'�■•Etf n Sdveduil.`. S ri`' tt.�ii t'aj'ci• • sr} P r is tort is tw istit ffetttiiit *-~44 hlhc mparttr.ly. Idle i •ri rio.;: ri:iIrui1.iott [.€L��t. �-E, cct,ir.tbtluicisv; rt _ • • Morikt evesit;..p0.$400.in event. ini pe :'it 'i :4ti€II 1w• tyn dkii "t nrit (0 temitoti.ingt eitgr C'QWItiti tiort: .�'�; i3 t •'t�. -h it Wet 'than- - I t' tut tb1Is wain thu tutr?tn. event `'lncti3(curr tice.oi sny'tstch: diElyc i.:4f iYc&inil must Esc: dt'ctunnm S 'i'I the••MM!tpr ti.s tsi t:toa st, Rt ti.ntr-Ih s :ci int : ti.ii ititiM. ,r • t rr ttctc ; it lost st evert .t 4 tak `rufnr • . ttkix tiatre4s.Co nhI)tried' tt&'ilt4niii* For • fiik."� fit,' . {,�tt ��i � �fi } s 3E3�: A w��, !fit- hits Tot. '�d.^i.'. ' :4 � #t�t= 'i •� #�' �� ci + '� �f�r' ; i `a'T' � ra .D 3f's the cititit:#'4' .•21)1sli intscttion of •thi ;v ► oft'nwig 'r tnonifiggintlit. f.cy8tgqi tg`vv'•r`y''£momits rt #' ? �::�r�#t't . iii ? ' • l'E� !i ace t•ROt • re 'qui neck T #f r; reduced ' mlv nI Ii ltl1 c1 if :'' • t constetti:titin Lie t1.v.tt1t.s that••0/.111 cliK414i)itt'o e ate* '' k ' fief... 'ccqu3 't ar t tt� � E �i'� ti �t 'in wi:*r : t cc With 'I :b WMP; Iut4'e•s cc we i vi3kt�te•dit '. ect if'i o f' the `pp1 tir r .of r.L,{d • h st' has 1-13-1f. I chi tiy ..easorl•at t� � 3 tt•iE tn' th #tt:•�... _fst ;�. i• ♦ ► rI r} � (¢•!ft 7a {,(•l ii 2trk, _ � �••�. ..` .}{�ti�[•r t4 . '1}.7��.i •• (�. ` w!a J�'� 1 « /S it ��l'Ir tEa ;aLii. .'•IS•i.4 t,c ii.•i1�iE? 3'ts?•\wtt ;ilEent p 1�►1't� i .`r �w. i f \ ♦'s nd ,. M# `, • xht-SWNIPP ha:i hen ztt3�t #� 1f� ttdicate iturza•.areas #� clt''�i.�= tt .in pc ,''ti:df Iii accl'i'r.`t Rciei2,1.'Lh the • z.: ttc cdi :sc hedWC.' i1iEi'�'o c I r In d : • piaraitf api • F'af2'T'I Pwtnft 1.,i;.13 Permit -1T300,11a LN)CONDE4`3t��t�S1JiI-� I� 1,1'inttt! rL'6Jnditaints IInspectittilr EleImI tli ' ti1''JtwJ,13t?rl drL' not i U1iiei .5f 4O(34: Lo'i5't€Cxeat;,erl ,k4f,}b lf3t`'. ,ti4' rvIlspolarily l)rilte.'(l. LILL:I.1 Yi t1 rtai. uelcl I)ieil}llt do,;141gtinra po,l J) a tv4, ol''>•iil ,,tL{: 4i( no; 4:;.},;I, fl!]as,.'AS"tiputln t513pp1iu11'siL` n11,iv lilts the 4b#ltrri' 11iekirt;;i t k.n4tJdttirlA 1.1O MA t;L;',t lillti St7i?t1L tr) 1!)C rsulta}4 I,k1,i4 ,xtlti month)) Iil .pL,,tluiLi as 44v11 lb the 33is',t��tiYrltn CY.ilt litqfY,'4I'1"1tL ,'tr1i4141 It )ninrinarsii'n Mks 41 1,4: 4111#'i4ine1111..71 III 1114, i',' tiiii it ictisi'd tor n et of till', ( S dnr.lon. siilit'#i i141 t'1 yt1O1 ka:I4- r. 40. tH :act CUY;h,Srlit IUJU 114.t1°rii,L'5 44_S.,ed, a1z.i defi:ac nsulii )1 ,,�+tlditststl� llvvra) 1JrtiJ)itisJ3cttls : ciG,C l llldll iriis, i , .ert` ELr'11t1rl:el . i till other Wiwi) 4 L5 (rif.tAiitrilil.i n dhe the =ch .i tkk' lf:tiltlred t!) lflr9 +a U13{ul 1113piii .trs.al the pI.' naitIe% Inv +pat'suon file 1 i4 f§Il?r! Ia1 tit1nt, ,}bl Alto -rink! tn'-t75`CIi4Yt) ilCii.ttL bt lifirt3s:igit111 €'#Iu r4Sl)S1`Ilfa iflsile4it1)0 Sop+, - rite Lt11)'tli'J4iliur} =tlf(: pet Invacn, 4atittinNki 4T(°di,, tliittt rrs}1 Anil fir s' e e ACtil_'g'v 4ELa!, :Iicti ate t:,J!:,Jtitd I#k tlt4`$,(1)114liti), 4h4cilatact lfJ'".ltiitri';, 1404 It?? iiit)l) i be J11,11JL'C;ed :lot of, },ii i1N` r hni3at i ii:, t)t)t3tiitl₹)l-r !e 1Lnatt the ettn)i,tilis:titkll bi€i llt7untbir}eti. tHa erin; the!ili'J3S144.11er rltiii tn'� r,tiyli!iif, lit Lil.•4„ikfl .lJ11 141iliiu 141}ttt'•. All tiE atit₹s find•sinliu)CF)t Ci>'silful prr'kcim:,•.°r fra the s1r1s't 11' ,.1,ai1 Li r iP}oklis,' ih tt tli4F Sift; ]llllllAtrLrrledd and ti et Zltkr)C, L )treS:ft4 .`} la-Dw in(' f;L:pluu tifiieudfrti—The tkel-t;litt+e b1,lalt of' .Snape tICsr4 11]tiJ)r~L`tri)11 [4pol15. rtltit,l rlit:nlOy any itn. ldt:rft5 i?i neen-Lc)ti phSLslcr: 441St} Ilse ;et ri pcttml_ InviCinn3Ji be rcti.iined ltkI t11rei` ?Jt ar", ;'?{.413) r:iC tlir2t3e31) 171 t11110 1}4.ii nr} tit p'e4 illit L`4S4, erdtte 'VII 311'iittllrJlr, the in ,tiU,,(rill. r;'pekff ;NW, i13L'tl)ete 1) 1'is1;331'rf, tlinr₹ahIs;; JI S N,IIrI„(ri acid mid.0 cif gt-mlf£irlei Innl, IS)p the an,g)1:£'tton, to 1,ttk.it₹iiii(¢,f tit llici:llr"1ri.i lit 4edlrilt_3)t at (Out pcail,tt;ini,, itbltt the site, iS ) 1AtLaitJlJi}fsrr #11 !IN/1'4 tt}til e i d In he J) II:1sJi2Jets:;tl; I 1 M1JCaitilsif ;I j' iii f,i3ip$ that titrlt ki ift £s! chile as designed a I1;;iti'.f,l imiktglok: ic/i i5 i7G}rIll.Etlul 1t)Ir1!#ie �l; If I 1.,i entIA3if i} 14t1:i `,)eitlltlttr}eil Liltlf'', ace n:eded that, went t rink! in t)14Lg at tIJe tstl)w° of t}tvexiii,A, 4111 1 evrfttt3lJ,5 Jlturu Tilt ii?If iiJl11?1 rllst)L 1`,ltYr =i4,.111!iiat'_' as pry %141i:tii in Sian l_1) (,t a.i1Jr54 ' Ii) T? ?Cr11?I3Gie t]' C§}tl"i,Ctiv aCi.11illl 1#11 Jti-Vi , ha i v, and L S� ahovi _ dirt;,.$ 1113:£2Le a airtiomi,1 I_rli,, i}y;,Innd. t1)Ge ri1t5i 1:1kt.11 fil pro,ont iL;elSIl511#: -Zh ing t#4 iIn SViii'4f&. L1srltes.e .,Jrs'..,iel€= viii) A(lcr,ideditt111t altreeri .etit}ri(911,t: been ir€ a n, ttr Y1't)eft: it rep'Jss di'e.i not 3e,1e ltiis .1113 lll_tutili.. I,Ailil}ili_ e:1.t11 lepo i iiL'rilim! the. line r IL 4t14ru +11.S}?CM stilll dlis per.t)3t to we l:L'3: r}t i1ke +,ts:iier'', isi)utrlt.:lgL; nt)tl tic114:1, !:) Reg iifrtt(i,ht:iiistntl Following,MileI1I,V[li:i:$1l)EIS Sk'1'llele,"YrW 11{?it', the n^,.'e'llitrLIMP Jr1Rl;ntenimi.,! 1J�'tlbJttL"�, Sir i''f t ai t h riinItlt,Stit1` . i11 aver 1antt with the S t I'vlP .tnd Pal 1.1 ),7 orihe Fermat ll;ep,dc, rs f li�#1 Cffrt't)1. 6ir lit-Ialiltitien tii nevi _13M . deiL#'t)13lled nes.4%slu'y tittrinit ,tLt Jnip4;I.ticanti Ic4 ulltlie e, im:f i,cijve la Uilbtle-tIt€UIe TIN,TI+'1 mild be C.0Ind 131.ed J3) :1Ci.41rdnir)Ce 14 tit) Pars 1,E) fi niche pernl}t. SrYtr? t}SJ#1i1Ie:n Fill1°Url:4:t'r i1 'Inuit of str,,i4 fa'.41 lot, JJ1 the derin„ site ifli 7Ct,iltJl) I.IilJ.:tl be til,tak in a ei ur}!<tns e 44Tili Part A DI; t, nt flat. LIMP 71Y1aroi..[laneu U1 VI #=7JJ1i7 1StJi! 5edinions Lliilltell 1₹4+itdl£q.( {3r1t173tti4:t tpi l'e'.t ii'ie me Diure,1 li'iLilfkticai in Site S Vf. Mk' #1)€',t ; e mat :l)liilb'ii in tip ratan -t' L41ldtuniI 5rt i5pei 413(1 umedl,itioit or tihiro and imp1C}13tntat1, n or 1111)₹ «hL1Ir,S5: Fllylt�:.tienl ned �I.J,Xit.I1,3n}> pr(7Lt hulei, :rl ,ieedli Ir1L.e 3AJrll sire y" t4tFt,'.1te%.114l rc' ittiekl.l}11i tU meet a$L3. eer7Slliien UN -If -. (ill! are IUU itdt.ltiiiJli l4 inastaiLtintgf 1X1 LlL_LtfthitI,e. With genrf I:1)4=44311,y,, 1J'} dre. t}}?¢4 e'ii1S1 plitJllttt 1J S #?J)t$f}l piti%tt;_tn, 13}Cttii 1114 re''11d1`rat tIf i,S)llai.ie t 4,edirlls;at eutaide il'>~ asu:vatlde inhllliltC,. of Ow xideri:(i to 1)L` 1st} titan er C,t,34r_tf 1rir', r_li#`L"ttFl`i4 iiittl it?ti l t�4 all,,li11'.,i,.3 I_r ilJ.Ct i1i fete t41rL1 nut l 1) tf, beiut4. A J,pet.itit [Sahel ne col ₹iiipler3}e}ilirlL int'uriI tuni_e fittk.i`4lilr.',!, J4, Jkut till Ji1d.{1 ]n the peruer 11k.'LlLt i. ! it miilfltotviti a i`i e'lpe e.'t1 trf 111' p$'{,iwtfl,e tint re,,,pIJl1i lt,', r ih _'r t tlSuat rt'y1iIl ng in ;iettv#tt <4 &..ir1 he Slide dtirnker _t 4Ite, fil.x}it t1{1r5. e.r ifili inn, 4.}etiet,r1 .w• P�r'.t r# • I . •Pc'rynit' a o.. C OttP-P ,t::O!) 'FL r .. CONDITIONS .. . � � i r T L .—; AND �.ONDI IO°�S (conk) • . 14.0fit tO*nt t#fld. Fai cd I3 _ I's Adcgixitc :fix& i1. c?.: meI3t IUEL.'t• he performed as pan of comprehcngiv o 3vf;iiitte titii.:1i . flrocoltni ;y , to S t;?;cess I e ad ttitit;2 C)rIAMl':; .at a :41t .nrid: the raimitgatity c king6. to those Nilo etis*we-c aE'stitiit ;ii pitrit rmti :. Whtt e.tite astie i ten t 'fault .in the. dcten it mUon tit -n tw or'r pI-.iceitien M t it•ii !tct '; the liNi 3 h ti t be. • iPi4& 1t ',`d tff:efstfrrt on-eu * n�w t t��frt�.;€ ratio , of 13MI ,r.: . r e ' . . • r+ Vitae. MN NM! on otnip L "1ws ti th Phut IDS :they tiiiitAt use ckcIr :s. .t cu; on itfp.vdiaieIvs tt . fnog..‘itgi xi; • 1 f Z r r f r i': r: � . •.. � F'� � 1 � r r r r s• i� a �.'� ► v 'r � I v0-:t}e,w . ≥ 't' y+ oc t;≥ii&tt (cd or IiM . ;�. Ti rep Ii4tz.d., t i�� S �� M:l' i t fi :h*. ug ate :etc, :t�E� �Et •. .; Rar ..:: L 0 ::. ttriMuir !rn ttlt i tub. mfc trt4ted s UI tlis i:_pt t uty hhow vver,:thu Distionl t.tge vet*. the .1i that of re; ).6.0 . b41.111 WM '.- .-v thiEyi it . .:A: copy. 43 tI t. S\'_MP ..shaII.• e. tetweEt. to the: EPIL LW attic agtit€.y tc!• :t'tsit e.-,p;twti% if t • r ittnvnI •imi id -elottion plansgoding.plans:Oi•Ettlitnrimiter management' €aar+: 4 the i 1 I fief C specs # ett in the • � �{ ��r�r`��' '� •� � ��•'? X � • ' s r. f�� Y any r rr. t f . �� . t ti .� v � ►• v .• � [tSC ,�'� �e.� P it; rq ct ne k he sctb t. L.tt id any 'of •1hL•.sc �trnnttit.fv.�. �': �� S� :iwt:lad signed .c e of ientf to tn. AtiMs_L(1frd* Ws1.1% [PI - o' of •L : € ermi , oitriii).thig that t e SW Mir` tqi.ripletelfrid piennf t•rcquE.€tni (infs.: • • Ali-SW1441 ; r 4tttcc4•;snd0 fir, t� s� � iii i � Et N #: ( :4:: (t .t (*a tittitatbtc to t:hiuptih(ik: tthki &tutioh • t Ea • the C W � 'itl :Sv OM" " 61.5 4) ar the: . k w i di' : " .K:br e. Pram : S 1t m , R4t.t.R iOttth x's vilabl. • at I 21'fl Ilcr% or this PIN eitqut t.ta thitt poem i.110 mnay- t ' ?m" pia MV/MV• m:4 ' t= fldicE tlot•.irr cc}?drill \%'it 40 L•.•E L.Pi3,rt.:.• ' S:3 '1`MI)L 111 -hcc il' ppn vc fit :,an cr ci ,-..i {itAith.Oto .peninIft •d3; (2t14t �, ; nd i *nn k- i$c r tt; cI�m;rgtw ..- �fr�� f♦ E• l! r j , activity. tr •s.� �� sl� L-Ll•s•� t1s fsirtilOuinftspiltifie'_1 E Jd} (VILA) tr•�/ 1 I o "V�'�ith �•ai mt! uG��tEon AivI I tty t{1�Yr1t hcewfx;- 1 (� S y'wr`i' a Wri tcio:igI A I !�' ci(•ion Ui c r t � kY t i Dk t:4tirt• v411 •{ t#ht'V: • do %VIA. aiSi hem€t!t.iii ptcttff d rrr poly' totigh { i s j= 1 c r req rettiat ts..iii- f :2): >;yT. by- s ir�t t.iiii:1! :No.& .& Fid perril iu. e orate %J[\ the pegs iuue •':. f4til iv;. U(tti t Odd .".rLqurr nu€t ¢.; 4• ap t) r1L3t : may did i?4;u.trr I, Ut ' . rid r ;.hc pen tiflth :-l4• !•t ': •P.. tin 3 in ' t:rir. 'bi '. •.i ia0tk&C'cti °n . takes on: c .q'uffe't wits of t yea._ WLA, and `beaI mtg. whealer tile- rotitt renu.'nts to. kw.iii)t, Ft ! ' ffimuigh imp. E,,moptItti«'1 of tsb1inti; etormwv tr I %i dr it, additional •13SiPS arc Hera c s 1" ..-. d3�< � cisl th :cnlc't.illti r'aj i•or ()0wi'' vtiJtt;fit .` tIiat Show that. dia rcqu ei ic'i •3s u€ii .s:• pct ed' in he met_ .and • . Mil 14:••r (I •ottic r: • •y )' 1 f tii Icvaiiiati iii gfhiotb'r•that Jai tl'st tl" t1'ii ',4t f ' MI' 4lit` � l; S't'd;+� ii`��a . ;` ;.'sort � tip`: •type•;arid :ich►2dii!L` rthc AMP ac tit ;t.Y' str vrini€tns.. r .. .. ... .. �.s-.. ..••fir r t ►' r ••4t .+ r r'•;� MjAi s' � .y � - ►•�k-. 1 � i E}ttititinit .tiitys d1.0 I t,. t t��c.r : -` }ic. Mitt€t ie !jt t. tt tit.titai,t owei,� # . t.�t� t . r :=' �c,.�;� is , -s�ti� tit -ict td they .s: -?s ' iv' w€th .t i ppi t: UbIc. reggstt. 'etmt.fnt; atfrivc;.'Fitt Div tDiv klibri ri et � _� t.t E� t ..tr requ tt .i 1 • `t ati.4 'oft'( • gf=ntet;tt pp4tfc • ;ice if r g. • PART I 1}at3C#I = Partin 'fit '<'0Ii<<ii3ut)t ) 1 _ 1Orin 1ifNA! L.)UI:sil`1 }11a°sus Fut Ow #:ut}yo,,c v} 114,,11,31:131 1 Br -5t Mitii,trtl't174I11Priu.tkkc, (IniPs) 4 Caviol .c t1} 2e1€1 €€icy. luittuIJ€ik511':OI }-raid `cs,I;11i111€,t'I'1a€14= }1CIkL+ CI4JSL'?� 11€1{� 11t11O 11}1 ntw,;ra4-1i} sri oka, ; ins 11tc't cr or 1 e4.ilsi the pt,flisat o o .,t)h.s 4 k'f €h SLIIIs. ifhii'•. also include ot:ns'u..ui It";1tt#dl;iiit'Fk{'S, l''13kr4tili_ prof ulial*. }1c}1t.s'tkl;: Jf.`.Ir't:Iltil , iirlyl fyri)cIIl',`, €il tt+J]lIul .ate1`L:f5A1). SI]i}ltiMc; t]1 ILA:, L'(,i'+lY t!i`1 ys+..tl, tit lSrdtltttt d IT 1s inaler1i3 Dvafl 11w14t4p11L11t p)stntit and evacrota plan portablv acphill i1.'ntri Lind t'lltp, P:Ic.' ptil.3t5 1h I:ifs: 1v�� iIt 1i RYit of Itch:wt.:pf to a t. k)t1,4rut:tiou rIIx IRO i11.fi ja,lsvole IkL1ter€Ii-1, i14t}i too that wl]Gt:}iic %,:olt,tr:I4'ttilrl 31T'5'LnI wt�tbllltl tlraii rt#t:,t g rtJa::t4.i ^sLlrlitt4 tf1`klliri}t€lg Dciii,tt4v at the:;LI". ha"; Q' 110,;11 r:,xt)toplittt:d i#Iul unsinfill'pa,gl:l file covet Ita;s ht'et1 cs,t,ihl1liIig114'11)1 an I11tflvidu.11 pLttlt den -11} of :tt 1e ',f 1{x }1t<°tt.:.'m 01'Prt:•s,li;tYlirlxrnt,i 11rs i`! -, u€ tkliuva}itll ptaindn4 11L, p1y'HL i 1 Lao -Fu u rtN)ti}.1N11) J71#3,,4` bet -it s ropio` td. I ot" putrAn?c-, (A -1111a811311+ `t#S:i;lli�lltl33 Eft ui F+ i- �t�It11JV� cA) t_I cripalytc' tit pttSstiy{t!}y 461.17{€61 y,tisi rii1 9h11' 1;1 ITC -t: CF411FI, •ytstlfliji(3r 5 :9F :Ito bale f4 iii 11A1t.tlil �}t1v tY;1 final £t1J1h1 hint inn 4Lttii1spi&I yip:tr111t15IilLrlt 5me4: ,l L'OMeplli; 43f 4 t3E14t"j flfl'.c'i i.inc1u4 ing,, 10,146 Mat 'tlttltil#1 t: .- ci ll1,, inhiflit,trif i :,tr t L4+ rn:clt b.l 1ui'., c riti+, LJ,t111411 St 4Sll,t311 r. 71tat[I 37I1311C £11:11111'«l4, sfr morn) d Eun$ I, x?w11t.41 l'I' Stjlli,t'it,i1 Lir.c i, 4ASu1Tt}, cditdl lct, or 13§tlut }t1.L113s h1'41y (crc%ilt4LI 1.3 state LAN!, 1);34131 Jt,ilash:nitttl {tvta t1#AfyJsul} 4)1 •A•15-igt', Inclu!,trlLli 1L t}; -.ii', SY(}Ettlt�'.f Lt (i3 31jy't' i1'Ik+ZL.yt dt,',Igiiett or LI I d for trik1lt,:Rin tlr s•e1414Ct illy; r•I+rl lE1^t4. t4 ;; ()perafttr tht entity ilia: has filIV-to-fill!. ,lept+.14'7i it,1t1 anti 4!1€jt#Ut (}} ilcIUVIIIL"s taxlirrnnz :i', Llla cittl .1nt> tl<it1 s1h2 1L Ii1t trSiisut, 1111 dm. t:ttipt,r, ills"tzcoaral LTtliklrisLLtir tt3 Ilia iLgc'e_1 ul {tll# 1.1"thtt;st` )*aims. it ay)t134` cifLtIn141a11Ce.: ll N i iltlt,tpal; t1 OM' .it lIEIT r,n1 p11i15oh ifs3 L't3r1'a.rrui Ylu[I sills{t'L`t, tittle -1M! 1 * u1' p,3rLIe- it'<d+� J3lE'+S r the ild1111Jt5L)5) 01 'or'M:l'ItIt l' 4041 Ilt,it Ills. [Icainrt rlr.,sv he tr.anz.firrt'L1 at. ills: ii;I t etvirigtt ft ()titiatl, ct pour Y:cJ:tYL•_ at th., pulse when; .1 iritsw.iIIcr Ista%es tilt, QLi±1•ilmotiun site i'_ibfi tit>:itargCJ tlt L; X4:+:1:1€13 5Adt6`l or 1'4 rSr1F11i4rtt�r ta)lick.tilsll iy'.:t'i11 1,ttit t sir aY la rg4r coalman [thin atf cic'4eit1ltttfeaat Itr° 4;I')ct ,1 b,llrEilgootar,ir .i and til'glili,L 4;00151r'f{.Itl)11,#tt11'aLIY trwy Ito taking p11`1C- }ittliacta 11tf14ft on tbn}'wri;itt r,4:IIWllItI,S li, f}/}fill sou,t4.t1 an) dict.anlllh:, Ct?tlll#ICti21kttli-xrr£t::.tlit4'',}ittli4L Irct11l 1.VllY4.11 (Iii3tutant!, S; tlF'rnaE be` di -.d 1ria:a Point S{?tisi.S` 1119h;}1LYr3U', Or :l<5E1111SiCs',11t Ilt1L11 tiiliriiikat:,A 1411IL11 I11L11 ths'; €114: lil per% 1131;4111n5 S'I Ltht' 7;ili wild whi3_ti -acts to 4;1114%1 i`lancili, t%Fth Ells^.4tiri'.'.ill_ con%tiY 'LL Lii)na the ifitrull#rw, 4ir,S#Il,u u or gr1riin' 11,al7�ll_ I'f}lltt14111: {1ro.il'c d 9)unnl dirt,' lush', X)141 \%.1 ite, tr aNnet'atu#' ALss4.s s Ei bit tllers]Etr;it tt i�li,` 111E?;VF311'•tl nitirmlI, bitlitlirl _.1 !1I iIC'Llil1. rd1Ing.ii'e l'0at ia}, 1114.11. 1:'IG'L}v4.t} or GIs-.iri4d . llttipi Ic'fll, IULL, 1.11LIL, t't' !111 J14114%11011, llii#111013Zt Litt' t al 1Np:1it; Proevis 5,Fatt:r _in'' ,aser1'.ltlf;.lt, timing 111mtiltl.ttiriil,i{lI 171{?l'r.i4;rsi ,4LSiic-.lilt') _t1f1t.L4`_ 4titti'I •srrvt,tilk, tarty, ill; T3ri tiUi1lttii fl iu'y f'�t5 tlt'UCr1>Ll, 1itjC:i'liIe4114Ie prot.I4.'t, fish shod prtlittut,E. by 11ri111t1t!I {)I ,'lil5it41)rudoLl 11SI;i SS«l,titF34)€1 If itllttil,'5;aLnL Jrailiis5t.< 11. Itt%iivitih%rifaty ". arty E hi} ,, iLI3s5ii 4fi1!,ei?tllifit (it ull.ldai li#F%blialhliy, t=1;11 1 Ieittf,ir('5J1{irait14i /LTfEi k''i lt:'il sit rillt't`itte"I rtthitt3Li 1O LotritrucliCi11IEiI'rt'tl.3r��4; 1.. 'I1~.ntla llljtiatlo jo kst11 Oen tf glut. 1ss-e tAti_ti}:s dry, -,111_!1 .i, 17t)iS1L4t 11111'11L+,. 3II1,1y )L--, and :llbt'I (a1111L11151r1i Titilt.r' uy'_ t}lg)iiiit•l'slat ',sla}eriLals Lr11 lutiL, but ..n: ri{at limes. d to 3'44' €at.11t:i 1d1;,, 1 it"1,., 1)14114;tit6',isv}l t3 Kt.a! r L`'SIti, 11'_11 r!?s 1,1 is, and 171.7134., wi;td.s, ttr11411s ti rstLllc rLu ' ,Licit _i'+ JSltuilIt4 tlrt3dtl,,.l.;), 1.ilb 1114110 frll't1 pio_Itict1S.11, i r dt)n14 ticuLtrbliv,ti under sL'ciinii I0 II14 ) t,JL C'}„1Lt:I A, any stt411114'sia tllt„ 1,i+tilll} I't1C{lit#rt-d to i�tporl lltif4tl.tilr sLL ,ttt tlsatl S t ilk iJ€tt' 111 Lit it_fritll.ti'L+,, }7fiitIl l+ Ef.1iit'1 0., .01e,, 'ha•Ti,a4 dna h t e the l°r1t4lttl,iI i{i be n.:10-J',st1 %43111 !aLti7I]Wt1;d? 4L -.k Il.l7sit_ 13 ""tt)r'ttfWOttJr ,urt ita: runoff :PART ?ietroi t.e Pac a JC ': a `A a •• •• :f '2rn it net.+��, •t�-030000 F. Crl;.; E.RAI,. RE01.Et, I MINTS • S:iguti h` .i ;t_ S f E ri s :All r'cport t .`qui cd t :iC t:i S11till bi; _';twncd and celtified for accuracy 119 -the tk!-'1.3'`s.with rvi •.I .. :Iii tif$ tint 'of ottor: t on .. by a pd net rnOld ne treat exe ctit.iw of brat. least th •:Tcvd •ot hhbi k r her duty•autt':wrtiided Fcptesit tiittv'o. # • ucn reprc`scn#aa.ivcrespol ibfc tcrr the: weraiI: ope vats{ n t :tf rat ;ty irc i hi Me t iichar srdescribe-4i in :fit 6{'rjn .nriiri: mtttc- : f:tri the. ease of ;t •partnt:•r hip bv..a amen I Hurtn;r; t . Ow off'- ':.t, ;k t f•oprit`•°tnr it iit by thi pru fri5#or: 4): In €? ei t must tapOi . itttt, ., or OW!' i3tthTic ficffiiy.k by eftlwr _pri; p uLiv otl e&er,;: atiktnw. e stcted • of'rtfrA nibiU- •chi.lic' -enTirw v4: I jtiichrtprootto ''IC!fwo`• r f % fo • U; '' 4 ' " ' i3pk♦r 3f` " rae IitY ft rr it ' tL` x. the iIDeikh irse • gg.tril d in the 'r; tt _ 4 t€g€ � • :t , t •Y • • Changes tif-atit hcirir. tfrin: 1.1 tip uuithri lid t •ut.i0ti i) f!m*44 O1 .►i: ti11.�1�=.1 s� `if.iif! t ; cif .k ing r ficicktrau ± * Otis .0 inili'•"slku 1 OF pnsft3kv flitsC�;:4 �s ? ;iT�lc�ts%' ilt- thhu!.£#veraii .01301111(1!i tS th a ri5ef ItY4 CZ t•U1S uire mttnt CI1• xir;!' ,Timph pr (11Di(11D;-section must: a :E(iti t e • ;.siftp• ptoe or ,•-. t.i. ;vit } tint_ ftinutltkfn•: or to F !• :signeft by in.4ititiloravvi 1:7e rt ifit trrsn:..ArtfP rE:ttrt.siLn:4ng d€fcu i ent .:0"drtdi. section • "1. indicc . rm i ` i is Mass t #at ih:£5 £afcrn uent 1SSS- a 1 :El#uichittaants :wttrc pre timid under .j 'ri •di rcc I tom miff 'tun # r *ipt'W !Ifl m.• -in lwordhmc• • with a iv ttai• di s;fgnvd to rms-tm tiiii(: • IRslitio •personnel proOrity gather anti ss-�3 i kW the informal ion .'i, nti t•$4ii . •. . ii:iR" :on toy iflquiry •ot' the•pes %Uk . Cat ent:ins wha•mi agar the. .s ji shin , .o1: •hr��L' O�e/�. •�� yx7i,► �;/ � ` ♦C�+ y. ~E�� t {� _ _ { �s� i'?r•}� � the Y• - •��. •Y •y St } � 'd ♦r 't r='fit 1' 'gar .Y y� y�}}♦�A,' a • the. f•� fir_. 1f� �•_♦ . •,� f.f't t w tl Z�i•., � oi-sib!t, En.. wicit+.f.l g lhs? iinl� 1 T 1.24hfS�i ihi: �L I i.'cm;Ltim♦.stib Iittee i i, to the f.fcsI• nr rtT knotittedsyt;tint•t.!t?f•ic. true..- ititanitetMOi ct'niM c , #arn t s�,Yr : nd rteant signpenaltki:•}C" cwt bm ttit3 laIkc• in hrimiaim, inc!•r;cUng .thc :pn :4it i1ity 'Of at dud ir♦nrh umment arr. knawiog.kiro {ttion$,' 0(000t(:tt ; c or :3 :dl:r.f f rtutin t .` pk:; or. tip l -S WMI P: 'till el ail l sepo t .rt�gtilted by. t t a -red to 44,00•00.4. the •ttf1)110t n• try tcrsfit *d by :h{& :riwL tsar iftice :VGiL%'e :MIUT rilui# ti 'aticit or permit • • b't• ilt;~ <;:h l retatt7;i .o �<. of't 'Ni re u Tt : tt i •p rmit•tit t ie-c.t n ruction j dtc7from thi dtnn6 �• .. .. .. .. •^ . ♦ �• .•� E !t Y4 +, �j 4�} t. t{ ). ?�� a 2y{� �� {' 11# 1S {{ +� 1*S .Oroje t r€€itl3ttt,�# ' #.f.' tt�t: tt.` *ol 4t phratiOti or �. ifi'Ir• [ itibit &it pint ca eit* UfiCSS rn a't��l loecai ✓�_ .ipcci lied i . • . the pev it tit �� ' j t�t�� S ►�•�� by th1 .t tiq nn f . the �' Z' � f � f 1 4 � a ? � a i f is r >•> ' c •a f s• s• �c �f Y �r �. 1 e jr , •� . �. a. � •i .r. s •' . Else [ E.a ,}rifri- re sSlrr"4t!! tt . gu t. t �.'r t��t .5 c.: f i.t and •t ..4 tit r 'Ott a .n: yh rep .≥4 ;�� t > �r' .f .�tri � �+� '. ,.: t �s aMplC• is ) c t s part; ti x, .,.. y(' . art n i i 'o•#'chhi! Lrroit).. Rc•'t�•utrtt 4 ♦ ito eddti .`w!: lot :HXIy`. •tt*�nf orfi-c dul a .. .. �rz:��rn�it. •E��.. r��r, tM��3E.t.� �� ta r �t��}fw ��.: � �. . � • . �;. � � s y t � .�. c:(1•tfnet il: u il:i be itvalu do d' in- thennIi D•i ti :cln of .nnui mltcnjos ;_reEfuirt.nrxo#::... if-i't�•E s.iux$c g 14 t qid Lti � t. i�: it•I�#t�'.'T.� detinftkin :ippl�r'' :0) . 0be tktL. Tt .fnLd by tt��..�€. bit(}I�EIE.�I . • tit;..,? 1. Fi s#t „-.t.st l3� ':� e '4I r t .*0.444ttrei ; t ``# 'bitty (3Of pi.'i n tL • ' `M•• � f �, ..._. �i• 1. r.. **din: Y• ;• ::• f .1 •;y wv•Y •• ��-, ,T'�';•-' .A••.gni�h't,witrtiple 1h :tnt i`iht t;iii ; �i., fi3f".li� .Cit.ihlsrs•ssingk , . !#: ;►tt'1i;.:�x;4 is:ss � i • • • • ttd l t . Per , J. Le.rt.i emm cio n peri )J0i04:•It ti r; •t . ',)is4..sk n (.Y;,.fui.ips i.is, likin) in s4'ti;s.n 4. f , 1 s3 { s. , t l i lk tmuilon ptovi i'). tt rphhc:tttor1:,.j C tildi fig..thL •1tgalCflffliA •t•, .tlt 4 :ruj tc .tejn1.drsTipt .nn { r (hap originally b m Uitdi y4'•:;� :i� �1�` # SEA{ Z j "` : 3:S•:Ar}grli3i; pcnnitt.e.e.rikiill -pbt.wi* ands: 3tcific;wion5.which.1 S: . DithIo 3 di.`a '!s rvn ioi :1 4y i)th:.`� ay.e#ar.'' to tva Jsrinre•' . th.ttfi xt tWI € ' d hichar c and� L'. '1. �t�l ,'•ii'#'��ll� �. � �.�� 1 � � i lt#.`, .f ��4. aftiUf .111L% ;1?tv ;ccomi piiM3e �b � #Z li i3 � 3 tiff . t,t ' tfj app.! i oti on fig- a COP n ��ss ,u . y ' q . i . `: l'' ..1 i i .'4 i%cI_iatgct., 'f'lww SW. MP..sf fnIi. b .'.0 hit. . in t in vitrfutmi i prior to .th . cha • •a , .; :- . Any � w. ��' f .�S �i�i ar ? ,r t j. r•w-ir C• � LI w 1'-.:4111h4.3.01.4.0 - �. e: Y.. a .�. �. -•, :�I.:'�.�..o. tixT.Sn n.: Eros 's : ; .t ..::=xi � �,. 3t 2r-thhan : p1,��.,i' . t•�ilCy b t .t1 is' POW h; t'ur..i .di 'YO 'at -COPS .fit* t is pct 1 nbites!. . Special Notifications s Definition. ' .*1.8; An .un t yitlit n t)*n .t•� t 3 ≥ fp s ' 'i'i�it:1t' '�3f�1k•Ut4.1t#. t, f siatg. yogitzm ..t.i1kse;M. An. ti,39:r2jftitrlxltL U'k #de'ln Mew : .'�� `s 3 1`t.� i � andicnz)orLl f .1)011t.irnc 01010::•w .'th nin.4 4. O#1 ratir'' 3eA:311,144" or iactoi'*-bc's pod :control of 1 1 . ittni.i i.a.1:..1 ..1. l ', '#.. # 1.': nc#1.. . f0sf 3CL3141.i tl4=4" t•l? ' ti` .e.yi.10t. caul '.d by pppre410ni [. cit. r, impr pi;r 'V. - .0sn4` • . �Y :11t4tcs4 t : is 1c i., 10011.r. {`pce attat v44,. sham tn;aoctca p:11.050i :11.14)Opittr. :upgrution _ • oci.t. ftt��x�ttnii . • ..... - J tL. r.n lM.r}I. N YIL J!%1'1'MMI+YYA1. Off:. periii.WW .L!t Mill •i'C[it)4't: a f t ful.iow ii ts. fSi≥<psxs.of s!onctm pIi:pw.•: • 1) ..P.kny •J oiac mpI t.Lftas: w #i411. mny _crt44a.tgc;. h c1lth or thl: cn iroWlivnt; r 014 1i : tiJ ' :3 f .i ; 4i- i u;i: ti IiitAliotOr: oil - , 414 11.M4 ctl l,,; poll tit ion ' 0.10 1%ny.. discIia> 'w.pfs=er13;w:itec : i .' f. ay ' �� #1. '; " 'G4 ii1mckt -of' is w'i w r qua -4:itaa third. ; E b) : ��Yr' � s•let#;sl3c zti nit. .l v ir.o.nourerstal luicistrisi•41fid spif sand. r I a*?„, :all r. dcd • iem:Pt. b -t p i dcd# t � tt �'t •1 tht :.Coi" ada...i)epaciln t>~3. tsft t # �•� �.t�'�t � EE ns i oJt ut:r1t -MO TePi.mirkg .for- mviruutnei tjl..haza ds'A:d'.:• sniti .r l•&%:fibs; .J 7 j-51.$=:5oUS.). ithin 4 hums #r tt.: pv t.ntinctth.i o cs await tf 1N.• For. ill .#3thti#" ;:l�:�f if1%i`:f f' l'#�"'f•�li�: l ti $ 3;1 ' "t,' fli. : �' x3.t�'F i.n '11u5 sedii)n. £ HH: fi1.'alt.: #fltg* Iti' is t:Wi4W14 1.001.Y: *OW Wi#.wt , w;31it 4' Comml '�.ti#!) �1't`tf i �'f' b 1.1tr wt;.irnnn nit -1.11314v. f �.'. X31'•FEf�ilee•• .7'. 'orn ..a.'wxz3 'c 0 101-411 f11 }Rocs, 014ran CP.ii pIialute-ideitliilt d l r .`ti t4 •Filkin #;hhlii.l tthM) he- provided. within 5.01.0u41r. -day!t(s Y ej 'J L jt � i''V � ]V� �� 7Lf • c/h��i `}1�S•� � Eyy� S�Iy'• � ■y'.`�S L�'• S. b r,� ♦}�t l� .ys• ].7 •�ili9 .. s'+ -1v` ... /a3e}F•+t• ' .3 `( .F S♦` r f' •• • y(`«ct j} J•�J .7 tii CIi• t po iIt t `:>VI � 4, es lt\ itit O 1 t s,lij "11Szlnw'ritani jai' . i 1�/-f.' t�_�A A�JI `I�A�� xt% .�� s m1}..c001.1.3114 •w F. • '; ►:f r1i:' l i :g) ofy- Ifikt. 0.90j!tplfsince--tua l .tt:.;;cau J • .. - ... T#i&1t dioLl .13( n1O9.c.0•rn$ia# : ,.$n�;��3.41.nq::i:�xi �c`t' itis'' .E1n4. !bils`, , •ati .. iii iN; #' it?'s't 1J~ pli n.c.e: bac. mbeen �: 14.dt t +.�L; a tidputed t.in w t •I *. pirboo Sit 1 W WI.0 u #SF pkuuied to rthict, eliminate, and prei'Cllt refOCCUrtiN'f ice, ofOw i' olli.orin-pkialli`t , A. MANAGEMENT REQ tf RR } r 1:.M'VS i g< tsE.1) 4.' *Siityn thsinn_of.Ind.' ri`iect:or. n ijnnicI _sue ng thut.perRiittrei ti. ;f.} to,sithrott.:arry a ticvnnt- �i*Ort: in .I• per;tlit ; i}}iC;U m,. f;r Mit30%itLed ineoTreci initnt'mation in pert'iii .fttiptiot ott tyt port• t4') the • Div iNiott.,:or'I'e i c' tn1.. titiv .itietoniew av:ii perms i.... shill Oromim d1' : lZbmit tit "•- '10/1ai'ii whidv Wat, tiOI :�tibitlit td 'i11I. ' 'Acid 'ion rfnit { riultidn itit' ed to comic.•a' :eats eilki i tnf rihrmil!'in rteviottsitt Miim tte . • t. Daum .h p m s l ich c -au .cfiltt nt ta(ittittnellts c nplernestn tiMP i 14tE,ktirdithix Wit • :.=#nd •.i. ):oftiwc per1niit) .he eketeded is prohibited, Ltsui the Division 1mt 'Like cnibrc#:"# tbnt.a#.':#.i .;#i•; t #t . a. . pi±rm3iteg..tor•s:iehnt hypitPa. ullk.. i s. 'rW ..{#Y#avoick: ihle to it vane Io i of I11b Ctot ,ii. (n U rv. o ttift r property damage.; etC `Vo'7'i:.E2 t{:Wii ie afteniat 1wey.tt# Uic:1 pr.,1.Lf4. ttw i t the t.fsis a twtikilifirq trcat.nletit Iit';a1 111i*:13 M' I';;). tvre#ntio'?fl. t3. tt tttvaied 'astLw: or ffltintei;Eunc t d ti ni .itcrma1 tkt *)d}H tar k:tiu#ipinettl. doowynti ne4 r nt.sau:;fkd if ttk`t'.p'; riittee..could *Mtve. tnsttt.k id•atimi oge h:.tct; op s*Aq ii pmct t (1r.r.., irnpk rnennte .uck4;bona! HN•P`) #t? prt:c:ent:0 byrit i occ-tcrn *hdttrtng yl;'i`1',# ; pf;`r t,1d1≤ tf'dips s:1'lt/ (1{V.'/iltitfr '•o1' rytk"S'eti#int1 •"4.#ntritli iini e:: w#d :.. ', : Tint:; t.� is tt . s:ctis .ii itred:.1 { t t us igtitred its `r (vt-4 " ip;f11 anit Na i lcitiontrt lift . • a Effect o f an Uifiset • .r up ict cuescitwes.:ai ..afli -;u hive dcf; ;sc; In an. ufcctun: hc& fight. € rt.- pcnnrr ii i ticcc1 :tif d rtit uir1.nw . i1s .if Ord requirc'tm ttrtti or pus.' g raph b s thin cSes:tIon art:. Met:. l.Nu'&t Tenn:{tMt ;tun tine •duin ng lulc niwct%itt%t review clteliiirm tfirit nonotinmphilincc was. eatisx:d• by lipstat.and bthiri'nn. ��;� �� #c, s• • imf:4#'#ent,iripH.tani c..4!l- final atim ntctristive a ion subictl tfi Judicial-re'viLw :J. . Conditions Necessary- Inc a Ile fti.ntn ition Of fps : -A pcartni-ttee•who iris€sass tt -esti#hht.1 th i&ffitniut.ih a dstivbs ":f iz U dalIIIci;firsts` ;fS. tit ugl i •17tnp r'ly='.si (ain't(' cot E . it'ps'iran'c01* Opetlit tte igt; rF�• • 'i�r�I'i; 1:3"�' �i�tr'tl '• : 3�`#R;t • .t1 -•;SS.teifi�eustSs) 11.16 -# it : � i i ilh t' wag- zit fire- t;1 tw: topert=iy ,t mwe& . •; .111.c.� 7L`1� t"1 t,t'♦.�: �':ts l tf i.ibtsfrt:bisthe tusk.ig iequired tii PIa.rt LiAI; iil' titt.: .:24 - tour notice(..tits • 4) : jh e• 'f tail%it .t :cOntp1 : ; i ':}� s iteiteSixil itititit ; res c. t irttd ttr; 44).CFit Sec in ::- 2 41 (4) of (htf ItctkrI • r lintilliti ci=•S& ktM 6 'AHi))Of). a `thrk Dits.ehatize Penult ',St:tt:11. C :ul ns,. . : f 3if { kn ct forc,'ei ne nt rr cced.istg pei ntittir#.' : L` : ;i. - t{ cs;t ulna# t it.acctit TtfC4'' Of tiptcei /whs. the _hunk• '441' prnol.::• • - ►jt � �✓' r ,» '. � fi� � r V • / / ' t � ) N L• iy V ♦ ! r •.N •I ' . s li-' guilt � f �- .. r� �tH f'r .,.trdd .tom.. or . tli ..pol ltit�i .h.• x .{,n.over in•; ,:.cotatc. o f trOttlitti:t �, s t ni.r;; t 1 di*t tta its.i s guilt bt,.� ; �rry r. to i •t .I . i ti#t4ttfi' r'1sUCtt: ' prtri it•oil4 p*tlot:not froos ;:tl6II taiaw n.itll-,1 : !`'t{r:`it'f 'Wticitt S• rf ii i st .t t tr a=tli iltet : zitSt • t'i-e.pe ;ttcr c ida-tak. ail ' a€u cwf t quo -5 to ni n in''tu y % itv c t- xini ei.t . acfiiteti..ti#'t the*-Stati! reL9:t .11[fftcotriplcWICU WOti! H .teni.s.:tfe1 c:�.� �r.�F i t�{ ' .�t tf r t i = fi eltit weIi ri �3 t : t: ��.�,�i:} s_ ;c. t:i aifdd.istcw a fl- i �i t �•t • Its.: cc 4.is ry I disk .i:T=fie the: itaaititcan;i rstt att t.tFi rt 4sico ti3tyct2 V1NP,A0fikil 1{I't i_,1R1''.11 nr!" i�1z$Il_i $1, xL Cl,y 011, l,tr41s, fir Iraillll c 4i1Stilrumut(ii C will ulr I h ;>erislittei: h i thv duly in Imit 414 rtdu,e -rri4 4tLii4 ii), 11 rl4Crn,`,.lry Itl bl#Klp:ifoitil 6;3Jflirli;trl; d;'•i{l3 the pt fi3itt itttf Jirl.ln,_$ti=., S Ell(ii1 1t fltlt Jltln. 1tlst. of 1riiitiri: ui any mi)t2nwats_`t ifYIs1T(1]fs t{it pi`_ranate 111L,i11, t1} ihi. t"pteimi 3t;;f, L_4!,it(4` to lrtatiitl.f11 CtYl13�iJ.1134t }w,t11 i1 tlUl sllli cuoSItr1 pri ii'i.Jluu_ (JI tulIWI .2 it1] j)t)tl13`L4t)4 Ws141:c from expo An's: 343 ,itiifllt:y,4iti. En. "t�N11, $131111 !1k Lani It,5><FIt1;t e,:c)Iltisila ,sli re:4w L1t4 ur dI.1 AJLertlat1'. U method et r5L s1At{it 11t1'yJ,iiit1>)1 11, JJr�m1'1d1� i It ;Alai} nt>; 1t:: ;r di, 1i -n' is tiir„p rnistive man t:rti£iELvtnLt3t £1LtioJI thin it 1;isii141 lie 1I4'4>44+sa* to hit or rtil_IL,: the ptIrtnitti,t1 ,activity mil r5rlirl tl1 t]1ftt1it14113 Lttniplhsliit:::'41th the .4 onditAcii15 ul this poirsi}t 13], Ii'rt)iet Op -es atlr,►nAi5t ltin{G'nunt's 1 he perrattice c11411 sii 4'+11 timt.osnlitily tlptmrSti mind rnaintalin oil f2 iambic'$ sist11of !roan -win kind nthill (Lind it1.jIEtil :rpptlt lLitrtil4; t -N) WIII:1] sttt5 n1bi;111011 i.)J Wieti it) the !.!)1]Etltpon-, 0 ills,. 1)L`E3kil3 11rt1pa1 4J11e'l'#tll£)ti find rt1A1111.cli 3li c 1� Lts1(s1 = L,l112 1ivo 4'+ f13J;I11lui:Lc, 3dt1}tt.{te Iusttlin,l, 1#SICttihtti. ipur.Y'ur .!f1tiIL7 41nd 1?tftnlne, ,'.il€1 aei quitte h ii1141i t nod = F']1i,t,i,a Lnrl#r416, iitelis31trig, own-Trime quit]* ate 4a1ti11L's, Iiroe4;Sltlrt:ii I1tl� pro, $•midi 3i'-ltii3 L 'i 3411E4ll liJ i)dt l 'tip t}4 sr11 ritll}3 Y tin filth'$, or burial,£ , yr.r3!171s$ ftitil' te,hesk fteLi h;trY jrp DI,13i4s1'G` i:$iYFnjs]#Iirto:1 $Fall the coil(1itl:Y13-, of the p rittf°. lz Iat''>t't)'vS1IM11.14'f1At I Ins i ctitini. uttEl ittithi tr &_tstrV 1 i)c ist:tn3itLee. ,hail 16}4d tht Di uc1i'ruul'the _',;,itt: With; 1h1on. #Iii, EPA ReptiIl?it AdnTitu5€•.ilti; 1Lle1(11' Il:vat a4lJilaritutl rI,IprNeilt_Ii ei-1, upon rl)u prL urJt.aliEn t)! �r+4IJtlJt,tio; JI} 'pa i:ilti'J opal: tlwt; item):tte,.!'s pi (minas vyncre —4; it: at.9tusit Ihot.tilly irf at ;Iv IS t4)L,ii 'J or in 44tih b pity ri.fiLtrid5 art is'),141u1'sl trt I>e J;t pt 4311 k'r tilt` tam. and l'{)lilitii)n of thi, pertl1li,, h} At reazioiltli1i:'im;ile•11t 1.,ti,- Itigt:4.E. sii and t:d1?W' tugtilte 1 to I'tv 1,«i1F t1t1{1L"S 113s' ti.7#)t1i 411ij b;7nijnion' 1)1 1]Iiss perunt _ilia ts? 3llilbi k2( iit}V tJi11$4lt')E#Iltt Okituptrionn, ul. rn i.itortng tn..!thlss{1 is '.Jin:El In the 11Csi#t 1114 al 'J}tig. upcit th'i, 1]i!rI131t#t't•':s prentibt",1ii Irl4«;Sii:itltt_, 141}ii11i rL;A,nn#1, -lily tlt"ii{141, ttl�Itc'3.€s.€t, r)i ptlriniiltl `I;' iru.i 01 4v,ili t 1)llJltJlJills, ilr 11tJj` 13ois3JJ{In n# toll. i tIII)1.1tly 3V,11uf Qualit} t tl≥;1in,11 -'i1,1, '1 ht: { ve,ittLLItton Inks t11ulHdu, hut u i14Y1 litilt#«41 h . #hl' J(JiISl4YI3I .,IIitipling iil i3rt. LiPiel111:W'e ur1411'£)t 111Y)L';;;s s s✓fa}} rc, Jlti isilsis)_k' s)1 I)Il{rtlli'rdf 1`, Illtei ,1'u9 4111E;}t.74lii{J.,'td at43 Itll A11cgcti yltilatoln', 711317 rnkhur r3lai!Ct', h III.t:4i 13,;11)E,', I1t)titllt, K4'Jd% iit:t'1'' It) Ally €in(t ,fU l:lclll:lcr. i)f :ifL`fir 14'ilhti) #h,: Ile1Initiru'5 M1,1311:1.5 111115 MLA,' Ii'iY1_' 31.3;V t:I1ut_1'UI 1);'rt1}it, 1t Itt}s alilt�ll #1 LIt)l.olti+n. 3 Dun' to F> o11(10 infs rm:it;arl 4111+ 1}s tllllt+i -,ll.sil lslrntchi ;;) tllc 1)is:) rlts,l,'t1}In31 tht! tIJnIG ttltiA• Sj74 3 tiled [s} Ills 1)3vissi,)#i, any llldillln.3tiun %Fil6.i1 thL DiYJ'ctf}]3 trim? rt!tli. fel tjett3F1131TL` w5I7141'4'7 4.,iJi o 413bts: it3T mothlymiL, revtilimnn ..tltj tai's'. iltlg, 1,Ir 1r1.,IL't1'/:13111/, 4:04,;74,o i111£le: thy- permit, or to determine sciiniplir.ntx t1 ub titi5 permit 11'w pennlnn.' _,17iiil `alai) furflf5ll ItJ 3114.7 6ipm111 Ji'tjl1+%tit. t,apllr1-, t)i £\si)1cb J's-r_4utl`£i tt' t)sF F,CJ;t 11 111i5 puu'n)i, Y r ili'It;er DI -Ownership i)r Conn'nl €, aft tf uii1(}`4 4141(147 till, p4'Stl51l ]31,1) be Fa 11154"tvEl i :S) a ue'.k j'I;5'I4ttli:t: it tai I ))l: i iiiis.ijl I VrItiiti;'O ti(sl4lFL;. t1U; 1)3V31)FS,1 in S'Qltttfll? 1s/Ei:il thL1}t'its,iel u, 4C:7741=42 tii tiutim,n1 in Pay t 1,r1, 1, anti ht IuiilL. lllLltuLL. ;,:i 5'.2'ill4fi ,11,t,rts,Httin4 1'tt1;4`un tI'V' u' L\tWi unit mJ,•'.11 wcls]ttti!v 1'w{1f13#ttt111t1}, :t 1114,i,JHL s,t,*; IDi trnitl,li,1 11t'iinit 1t'ssl)Uriltls)llly, t4)Yer3'_f:e Lind llahilit' hi t'1rCt 11 t]leJn {tUJ£1 } 1 ale l/Arl' to pan '}ttix ll.l=, met Emil fee retr_'iiicine35t5 {)f the J'r1loiodu I3tu'li:lrp,t; 1)4`711;11 11).65it_iri 1-gii1t1lls�iY`,, X51 +=iiJ�i 61 I's € . r ' sPQN';#•zt.i ..i'T'€ S (cont.) 4; ip41i#itz t it •• _O ntusion, or Revocation of Permit By f ti • MI..puni it trandilicatioh, 1hhactiv&tirsn or revinatitin ;w4.r&&ui nnu. actions shall be-Sijc'ct to the rrquirettwras of' the :Cotcwat o I)5sc.harat 'w tt ► stcm (,1.5(2)I 61;5(3 •.$(3 613. aild f ; r t 5, - CC. P:.: I 09241; for .. ' •iii peiniit. ;x c#rt`t cct'i.i Zi: i 2! E octet this pant It = ::t t � iif :.'�i. �� ,. r• rtivbkdd► is i;ts �: use n- rt. • zlurirt g it4 tern• t`i;~T tCi itgl . u&t jt;t :Cd by- the thiti1 ri<m.htL:#tidEa .•but. not I Um it d: a le i ). _ V i&tu hn Itly t rt • tit tatty iti6:;.z tai. t€ pi:tinily.... t.t.• . . CA:stnirling 4 penult b • to 044.1oke any. lx# i. witit -1 .0000fcx0 t0•t t•h irtttiItrtt :�jr• . t tt io1 of a pttrrtit •orr to thcf a}tat dk$1.010$p ucnlit„;. Mate:#' ,il I # __#its nr inntcturatc •. thtknmeii `r' � �: • fir t; t� i 3 r # i iisn Fir th r�t3 �:r 1. 10.11 katt- f ii.'!'ii t :‘,'.ls. ucr4 . st.aindart' Et�4 f !tiil:�afi4'#�a. t^afin f�Et tft. .Y rty <<�: �ot ttte.io f f1Jst4.1 itx in tict �€Y �' ent •%s,s skiartf o :r-prniiihit•iut jr.winc h. 614A umdcr.S•ecci un: 3f af14g. C.k 0. Wau i'-Act, 4,:e4here. pollutant is pfesrt;. ;ri ttil= Zatick irge 'sgtil •smnth rd fly pr *lfh#ttnn 1 !tort slr f•iggffit t.hw • any !mta`tion far, --41.03.-00.11141.0t. 012011L i:.certification permit rt��t ti :: # !?< E in .svi efinjilt 44 that nSitiiits tither a tc mprrs= sry t°i?i;mfnThti .016the .016thdisc irgc_ :such I t -itr urritil it nn:of \ ale ()Wily Sinn iirt pptk' &t ik tn'0, th i s e i sy f� i ,',► (h he d t`iidu r c• _ r tc of emtmergS:applit, ret •016tiatit_ttOthe STati: 'r t : ur tS rit rtngtui• c oI R or-. • : s • • Clot fitl 3ro mui :ftcd::art = 1: • thei• ��.�il t �;; itti ttltittit t �:f �itr�itt �: �t itfitt. at. for itthitiOrt Dt` !tlopti`.•. fit`Miry• Wtir!t r..Siiiitli.1.t~<i:i.6r.:s}t a tan • f: et iii. sot; «zrti lir ctti sn-lind r telt& perttfit. ifida.` :r nib. aino.ti ti 4i= tet;tip . or .in" rciit .tt if zt kick tii2 i F : I itli..atitttt atitiOther i }7t 3: Fil. �: �3L"rt r: ci tifit t I .`4. ti4.ite•t tIotn '.Submitted* pifr uistl : At3 Part •t indk it ' tilat i t • i��ttx'cit titilit.tfd`ftflE!anti.r.htsit cobalt' oNu re tfemoati- to ensure: co iptiance.. with ipptrciihEe watts gat -tilt"). protect ,n t;ttlastrie .ti. c;. tJ d -egos : Ofgill n uy.motht Or• �tI('on uttnt i M it ntli.• f t#t : 1d1G in 07.. .# he -case •tic nactivatkin:; It€te-perinirww :tftifie$ :the itsiffift #" i :iu#Si t#. r. it3• t0:4ilL thtc •Ct fts fiigttit fts ;ttt4I • the.. it tattat& hcettiii ar y tit t f i intk 1' the cii :c•u1-'itlktiti'nill.icM :. tii p "timitie'e `S ccasskt&l !state" %'t!# `f',f -tiil ()iv ision tint titrtfIk+:(d fdisc; art tzets) which c sit:yLi#'f U:1 :caret he bis• Sit rt .ilads tbatitrittitite.fittti s a w f'eaj;ontabble t.%itititictstiinfilittkintHwitti fhb i•ctic f•46ii iw . lat itcs anti aguintinnns .€ * such tn t hcctt:i641, amend tetne'nf :3c � s x :�•s= tr} . : repittirvrentc; if t.tt#'tn f ...t rt of thlr .t�ta'�<Llt tit; ir;t hn '�, �� ' �'tf ili. ��j Vc uiyt �!R flr dith i ; 1ti rn tfi.ivstifin !Z•� i tits} _.Attrik hh#& -iitest-tiltttfittEit:n il'pti i lin C 1,616 .�i..:. `ft'• • tt ;1i l .c;( - c; 44nicl ic) ' itc,'•:; . ce cred by i Chialityilia Loot. #'t o raitt•: ta!t:r p uniie tlth fent)s4einet -4 site. littt4 •beti .•t1Tt11 ..tstit B }s<ESN(1N14,111I),f'f {t;s lt,f111(,1 5 flirniut Vinlatitin'c 1`atl#ir:' 1+7 S tin 1ph 4Ytlb il311 1i:iins Ind G1I £5P73t1S1)liil t 1T1 tlif'i purnuf *4WD be, +i 'dttilu'llc)JT dli L11111)=111. O}stt'+llstfttt:i1 ni 4,t ii1ItVdrt f 115=tilLaud +17111 i thi iru.1 i :Llt'tt�'y t#� 41y:1i11k4f Iit 1314` €sl'fi `1tyi7TlYt te1 !r i'�°111ii:Jtt;t ( ft1Cl 1'_; Zt}(1))(1'9) :aid hl )(}) t)l'tin; Cf]is)Isi1:u mit }'ft=xill Rl:'11Is1titltl5, wind.; d 11t}t tJFi1 nn 4:?t S1+j.' nndtr lllfw ,7J (Jtll l C uIfl7iin11 point-Jtl permits, i)r L1n2.,t4- an individual C1314S Tuytt1iii1J434 -au] Ili t} C% \ill 1>.0 lIT lt+1-It/iJll S'11'tft_' ('Ivan Wait. hci 17nd Llit: £'(alc 11tlio W'attt.t' I; lislbiatl' '4i, 254-101. th ISI)3ticlilC;'_ f ailuis iV cc1111p1-', tvillt j'f P l7L$111i1 ."G x)lsi'«tYJF illh 5yifl a41° v L`Etn'tituii` ii','i,Jf_trS₹,iit fP 1.� Lail 1tz.lstilsyftsilil € A 14,'slcil?CC ($1` llli'41'iariilf l LIfi 5 nc i crbl),s.'y any pal;llt'T1j {J1 41;111 r 11 33is, in ClliiLi 11;]11 or fief % nn1 lt4L)f%rt} 'STCl; iro fin)ik,, Lir'511i 1YJ;1tt,fyisFro, 11{.`_.,,e;,y !1111, (1O41 }1 lillISlj fn plIVIIil_ pnmfltli) at ii:V }fl' 4N3 JJl fl4;j`;,i1fi1JI CIL:Iitt, I14)1 any Itlflilil:,i...rnelnl mf 1' «'t1«'r:1I, `'1%.ltt: or )'1+11;1 1„ IY s tJ1' i 7 1J1J11LyT35 MAIin)) in 1111, pirrnit shmmU 1' L';al oil iL4tf to v40,intb' i1.11` 1IliL' 1s :stl 1lL'tJil11 or rclu:seu lllu 1)t; iiItCh IrniT1 ilat)• it," fitto:r1h11Jfii' , fs,lhlfiIMr fir poltilt,.' g4I)1111)W i7klt,gfl,Kit iii 1131} dfil)1r11sb1L! Sithe Lary LiS rt;g111snli.It] 114111;', ,111it> ?JIi�' f S#fit{t� (7y S ciisl ; 51 tilt CIcitf, Vr:iicc 7 e,'t:r 1.O11 , I 11a f.it3L ,t1)I,M 4fiif71;� ncrlillt •uC yi''i r l}fL 11' any prti kic5n , of lhir, pt-n»;i, tim life dlJlll3}'L1)jua 171 .1£5 j p iv, iS u1t:)f penal! t(1Any L!fl.tllil-4.1Mt,t:,;AO.. I11.'fd inl•allcf, to bpplf{:11i;ltrt Cif fiil11 I77}r7r1r,1(Ul 117 ntht 1 Ctn utnitnJ'IL:h and sixupp1scitiuil cii die rT ara i'dcrLS1 tSI' pi it:lsE `_,17;111 no `f v. iiITth.led, Rinli 48111 Application 1J thu 7t <Il:61.11 di:5171_5 :+3 L`1J3111T1LC lir #SS3,t;ll41$1.1 y, S} 1',111111 rc iirit41k1 ,irj)iuicition'hn1t S! m1{731i1Uc'd iI {C.L',t ninety IVIlj (1-,f};r I''cltirtk tllo-bp17I11)11 11'1wpern)Jc L Sr,i11 fili no di-{'hnrgc miLcrtl4cieipnittitr'S t itc c}i'1111 i f}C1flbli 11101?Li1.hilt3J1 41ofi.iii 171: pIi1FFIII1I ' Siclliicd 94)1f1:t1 tS L'g1i1 1113i411t cite 113' 1:;.'11i114:a1114.13) 111 IlcL;)rs1micv. 'SFl1,1f f'Lirt 11 13 11,1.1 if C Uillilr� 1- Sur ;to a i,1Ctc'inT1neLl In 17L i.ilill}S3L1ctUdf, unEIl C'>+"'Ll(117 3()1 (►t this' 1'; cf{ i$1l .'{loin Wahl Apt ;LTA f -t)I13r.f(} 111 j1�4F;(t 1?s 1,171= 11. tr 1)k 11S.,�li) 111t]11S, �4t1s11T {!1 5t-4,1., _ill report.; f}SCf)ior'c'rf )Ll .}L4 irIi,kli 4 with !flu EGC11Ta 01'tin- rter►liil 14111)1e it,itfii1)lc fir( }₹itbI; itlr,pz<ti on Al thC. u13iv. -iJi I}1=_ D,ir1'ri(fh 111:_ pG111J1;44't:Jfliisl t;131« frit 111101 of '•iii7fT13tl.11 Ai3S iflli)I)TL.tt}tll 1'131..Stis .i 10 +lily 10Cii.,l 117116 ois, method ill^Il3i3i 1 lmictlff( ₹4t [7fL durt;tSLIn, in +rule 5 trt dill' S41SJL I) 17,1;1 t,ontittc:nilill 1T1 ih ' purtrnitc ill}. 91,I1ich in* hci iI+`t1111£; sI 113S:erloulud,, Lird15Ct5i'i'rl f}, wW.1.4c1 t(f 4fly 4.1,111111111 + encrgcllct' in 171 Wilt'i1'i•rt', 1,htlll ₹nn b':; f5uhlleta':iYiCla.r,cd Ir'i°11S' illi:11T111`1, {>111it f, tli t'111j71t)if 'r' 4)ithr.` 1_d7infllslt,4io71T or rhi f'11a t ,ic)11. 15:11 111:111 114 IA:IIl ,:tsnlill14niidi_ Ally jicr-J,ati se-Lt1.Ing In iritli ! 11TL* l mt.r�IJL}fs t)# 1ho+ Oct-It(itl ,11'_td} 13411E U ST ir1(1411 i)1 f 3S)�}lt 1('t e#;)f11i� zliilJty JI hill, r4"1';11111111,3IJ nc' t'c hm, ai!eipinItitl Ji i i JB'.i.'lIJJIg itll} (f l d'lsl il: i)1 171 fl L� E1` dial! 10 Feea 1,'171:. 111!1 DII11:4 f,, 1i.'tik11.1i:cl its YA1)1T1i1 flat}Jrl'c'n'I.01 til ann1141 multi In the \\ Litt,- AEI 1 whim 111 't{iliiitii 1114 J1 tltllr4Sf It;35 tsrli4n du' iti4l pulyrhli Klliitfifc'Ji ?ile 11.-tmJ! and ',x111 -eAnil 111 e₹,ILSri.'i'i17w113 IIS ciun ['iFlSlltJfi5 iLl SW:10st ?y•8 111}l eI, 1c{1 , (' 13 S 1413 a.4 di131`iltltd. £3. R ESIVW13113 I IT I F S ttco t. ) BAttartitnaleistoo The Dirticuitinaytevore.toe ptrtntnce to ippl . for ;pod obtain an r t i�l� hi or :themutc;p:ntzr►i!-COPS pt ;nnt it i�commptFarce twilit. die � •d : � ,ti{' €t or �,tw1darc1., hhs• Pndui! tic dk c-ite. rQ c..nw'c IO;ioer t1ual� ` it (Tr.: . D:stn/intbr ►st one :t iiic. aveiitt t :which iO.d1eiti'whttxw t slits.=:Oitidctrtis rtl = be - i€ rtif, .: • r u notified- i .Ikriting _fluit -gin OW ca #i t3 t r fr d3vidu 4. ilititimatt Nt%%ottI c.. PE . r'drtflh3 it.requiredi % "bcn art indiv ddual orr. & i u uc enccaI .COPS. permit is Suedio-:2s . ratt w otherwibitt eov Ys'ed. tattle: if'is ; �:rsefa i }fier '� +s`,a }y, i ``'� penult- M,Ik {� I ffyy yytt rr Jl,, upon f / !• _ r f •the.applkabilicy of thbi. general penult to:that up£`I.au w in mitornatic lly to t`t vate'� �O c of i��`tfb��..''•doter $•the in lividita1 - ut. R ittcnateili recta! f:'l: " Ixrmit: • Ws Cri:in-oI (!/c th;tt. !1 Jij D•P4 -130Clio rt' Crvoii l)1'fi1}Sir rah Denver, £'t►j1J1'rte11J .ti(?2-0-153() S'fQhAlli 411.81)1Sc n :1( 11s'AxiSt)i_'I47:1;1) fi 11'I1 CONS TR 1R1TION ACTIVITY' GENERAL PER ,At1T IN f "OW11A1)U 7711RID REN1 014 I, COLORADO i)ISC11,4NOt: P1 RAllT NUMBER Cm -00000 t Vi 71;,N1 S' Noe I, 1)tli t,11IEC'l (Jt3 11, CYuuf;;e.s tat Mir trent.h.21 Pet llut 111 i3 i;'li gi }!!trill [�. ,}`I<Jrrttivair:f I,JIJt"1tltlgt.'. +rim'weal tt'i(1i t'11rt st)'1I( nun . tUtei7•!s' 1. Crtve (ri?(' (iJialq'i' 111;x Pr -t }FI ,Ifsl)/r:Wiurx clam' On true Otf'f}II Pi/ f)r(ar1�l}'ul ?o.ulPfs)s,rWig) 1`11I 1 II P1( LI/kf f 'fttttidlufl$ of Pot ma 1, I'1(ill it.' Nowt, l 2/2Z06 Publt≥.' iYrlii;'e - 3/231 07 1 l \'TaR111_i02111,V 1 171/S permit iS for fig- J f'g i/ i!JtIt/ Vf 7u1J'Ittlsr fJP1 1k'1ii J la, and ApPri,lie fllli}}t't7fi f nf11J" ginWIME1t'1' ll1>it'Iicilgin ir, fi<d't,i`tlittrf t f3 Ph Pat i I L) I (ifahJc.'vt"1Jltit The term n('JJJ1}if}'�i} rr JliC.31C�i's ryD'flitt'11 haw diSnet jti,lt f 41elit ilia meli1tlIetl , Ittal f(01 knifed ia), L'l =ftl'fl�l,, i,l'ti11J1tFT, eArJik't111()I!, (It;llftlrl,t�IJ alga 11:i1lJTi} t11 ff+AI In In11,7rolit'of haul nldial Lli'Ce41' toads, 11If lt,g eah, ' iez ; ilai s, APO' i2 o tad 4.. and Inn tuts 01 are,1 "`;iflrtti)r (iwt " s,' pl f'cifn!!Ill4)11-inel Ic l sty taw 1711VII 1 i1 s i`tl/ifittale Ef`ilt t'tphlin il& hut rf,n'1 memo 411 the fiF#)I'tJ31tY1tt:r1J1'dJgJ'llrll,a)f1l11l12'51tI)Irhare ivLttL!d lid'; t)ii5permit, lialwI(,e(llllsiyf4J!'oircrat!e911fla.'J'i111''Perm, (IJa,I the i r,'11r11U'r11f?rtt e It{ 1111 r ;Wring The forms iiist:Irl4red to the rationale and permit are available int tllw }Valor Qaulltj= C wilrn1 l�ft'isfttrr r1 kpelmite fill I4 ik iv t'li�7irt^StYJte,, 'r4 tt,: wka`, F,t,prt aJ27.i'rW fl 1..71,-1N0I:S IN THIS x CIIMRell, P It_311T t'veJ`,li twI f12ik :'1}t1Jrt i< f1 (4li the p'1 t.'7 Jifta5 I le44'I`1JJ Permit Iry (.1.11m1111( !1#21! ,fenviliel h12w Item Ilisttr jyr't Life.1 into al}JS Per Mil i `JlUrf,+geA are Ifil l helms' S'1ltIJII Oj,, i)thei' 1)1tir(11- L /4fi+1 rAs net L' mark. for ( lait'1 is ral,can IIurpo ' f #_ 'UMW W in t,s lit i('1rsi)^rt TTti, sr'CIJ:Jt! ha,' /wen rt swift -aired la as't wit J1f the 11 /lei (fit tic lff'tttt s' (spiv? ad 11,;.' this p ir'pru, foul W le' f eJ114i'dertt still) ili{','INf'iirirlotl0/ "L 0/M ion bilk) trL'tr111), " The riefi,iit/011 olCllftl!!1J('fkJ1/ tf:'f1t'itl' IJ(tc been t:)IJtteo1'rl (0 IN (t1'itif' ! 111J"l1,LL11Jt11% SL,e Paul 14 1 al !JIG per'inif PART H . Po-mit •M Put 24 . •PgrnitE_.N04 COR-0300#j0 11. r r i ►,% f w. .j.. f PERMIT front � t i 3 Y ( f.li ., J t � I f i�l �l + F.� I ►1 .i., • ..A tithe** ii . D/ s the it tre O11 and l Gas ltinYtnft. t;r.irr tIs-t><'t ifi.a °•/iego.iki(lcd, .14 .14- 11110:U('COI(I((:-(I rcge omy c /Sired �:i � � � f: 1.�;�.ik/ ,cif 2loja i Ni?frl f .t nearly dila toll go/I! :Ctil.VWr otti i#• •(W I! vi t ict%frotri. f cilvfl?I refill hymen ti rri ♦ T the ' `'1C(1i W'uitnn- . Art 'sL•'.r'Y'f'.l)e_ storm , wiate dIs l f t gc pet nt!!! progr a. .fit January 2110&' Me. Colorado: Weller Qunifty Control - .c fi trtim#.Ottj•f. Wei II hearing try: tf ititnintt•:fthai. -t fli es, • it €ttt • it charge. infidered frAiner i h .ret•up xj . CColor #;` a t 'l ,c 10 'n,! `ate t` 'gx#/ at1ons..: T/ic' • tip##1i:tv kfrn dems rrn ned that fail •c frdd 'g�w• :a;ri t'rwi riot• •.ditw' Flt .C hin'}tl o Iluti t .#:tt j fi. ' me. to; istoru 'i'' s . 7re Al;!1 texpl rrcd po‘ntllthr►g .j ktllcrrrt~tus (:0kraido Dice iuwge •Permit .St -we pit; • `CDs) tie sitafioN •1 ;'C'R::16#02<4 '/)_ :,- In • pion*: ru ! am']gtis•ryapi. telit''tu -:(;11t%:i'-. i ''jft.=value. tteripur11 CRU` tender lit.'s permit cis do• otherti.'pav'q. • - eattNl!'3tf'II0 }: .Ho vet t "r • (Fits penifit. •1; Mohrssome :'!*reJrat`6:. ea t t ' •��v!def til Clean. ' c' nntA'' :' ge ni'.rali' these E• 'if `-'f• rC��!. j �+ � .liif �, S � r� '� !' 1 � • • � �/ � r L ; � • .�� 1 ,f •f �., .. '� L s, .:are. • .L ♦ T �✓ a :• • u ... applicable.to - ll a tai g C•Ctn tF #IC UU �41�cr to 11�• xtor that: t: thi y z n�, e.4• 1hol wct t fideatiF; `,tet`j≥ :Po iiy-Ael.:f 2'9IO3 Sce Par! 1...k.. 1 t tethe-Permit • T ♦ 1 • • .. A ii t a t IO RitiltifrAtil tent! .114.1 permit_ t7f 7/IFIC ZYIsrrfi# <t wnged,�'�f ' �f t } .list! ff,3� � ��f s� i �� !'ion — r ' il'l '>' ?A:':: See Para / ..414(K. =7 (: ,:. . . e t1 fry f 'i'fj7 ' insist BO. ttitt 'r at l/ r1' ( i'oft/a':refit:vi nno:1M r:c rL:.:An opvrrrtrfr"- r1 -a • . orfi"i'rwlio rr ' ll�' its; e . '' n 1 ct' y : e e i s " ` •' Y �, ,..* . p . �' • _ j .. ► .c'! ;Alp r �: J t ..... t " J � t'r: f y- .t1 cei 11 t �E-tt'tt;n# litthir b: .Ir �li',ls! ti :fit reit4, :itt 1 ff►,qtr .11_♦ -hit �:1 Iittl?1r ; Al orPri,1fg willow t/1ty :lettt;va1tt miI c1a:wj' ive. t�mp•sii'%P•al;' .t j � E �i ?1 , . .'<f �:�; :•fin 1\ tte.I AJ?ilxv.me AY!'•N: ► w�\v!♦•,♦� b.:•. :Part tel. _ 1f ) l•the nits* pu/ mIt: ' ; ve*w,�!cily! • 200 deals it r rem/itrattly tt hgtri rg ajt1tI i - tender t'rn t t'rni .( 'em • itsdA eitt rf ori'm ix more ' s peoprjuft A This etm ii see: t 11n..sturIttalii•. :cfapi tafed.t r4:' '4*1!kie•m• \Ipc%ilrft (see ntr t 14, 5fr)L. csttd : t? •ft-'taag been delete -cis:. • •�� tv:g?1 Lc?�a - ! wi gt:r Y 4f fig �` jwl•.�•♦•�• li !./l�•t �l!. •i •+i Ill ..}\A.v w!♦.•w.1.rvSw�wr♦♦tN!•Lw.M..•� ' 1 1 )•. . fir. have � ��.f < ./t ! � 'l . •'� '� i ♦ v . • � � • 7;i .p. 1 �1 .` • PP 1)cj:dur s Ikl%'' I .i FI added Jo r_ 1 : i/i f .tv rutgtf iretrw itt im' tilt? i ltnfr.sfrr .r f iee 'ereige: of -.• ` itiz /?.`ofl i 3t . Neinilk'tJ.1c1tc tt) :(t sctiin `I panty: see 1cerfnmi .re 1:/. v `'llr ,► .�'�, t r�1 alt and .Part .. . .p: , 1:{l;' :t tSPe1 tl�ff rilez.r1d . • w...au.N.�i.\o.....r..w.w+►w.w.r%Op'�.....MOI�w�a. a. .(.w wr.�..' q0 erhi •.Neet1UU ht sy.eo; yrrjd i/litd toi -itte1tUr s!•s train y1(e. rtvokitip' r�r:Trotti � tf1.:it�li�t� : Dark ".ttowl (01-04). .Seth - A. I . f sof filifpolfrill; Cie :Sipe.mitsiies,Aftsfrag,1„,210iitlrlgx„tittr ti � t�r L 'wt's wf'3 r•wr• wI7•.n.._. M..1•••.••.rw ..•.ur.�..�.� ' • he gint'rt'i 'aier . luhi m:wet: t :P/tin section ha hif II tdt vided _ fitTU. 01*. Storm ti'Bret' :% fartei wuien1 Man • 3 SHIT.A1,9 -::• Cieir ras R 'quireftiottc,..sylfielf.rorkkw Me 'beak ft -UM -omit caw& genital retlttlrewu;nt>,afit t; e:' •►cw ir, (c trl kit# rlitsi, tier 4thilltt,; ftftctrt .lath (SWMP) •Contents. winch .cp , 'c/tw a[[v rdeliti/ w'eiki it =m t intt. ..±nittfo 1W i tr'leitio `wci 1ij' the. s U - M1 'Sct• Pant /: . effintte-Ol'the l erin ft, iktu- . . at'%' At. a d-;: ..ai...�.IfN I1.. .+.• M%t4..N414V►.LI,.n. r•r•.. , / .' ♦I \ ♦ ►rid • . ♦ t .ME:Sifelet 1:' issenerot ivitrr'erne o.si'etkui fun heft .rotjfl icydi tofiV ult" t /1w the S : 'A/P-1tt ttpeditin attOdestlie# ['arm .1.fi5( ;t) -wit!: `s a,. Mili nj'tl e permit f_' 'UU'AMP Rvuiinvyt cirig s;.. • f' i� lili '+f?'1It Yp# •0tytitity. that •lhc' SJ <1IPi rov sioi x'ridh t cirrr'ert • , i :' enistliti fu s, ►�t 'f �3�'1f`l r O (; e.• PAR I' {'ciirtl }Nix. 2 p ;n ii #+#u CUR -030 4i* I) 'Ali VMS IA THIS (f E b,RifI, PERMIT t aw Stlrrrrrit'tttc=r vee7r 'rtl Part e 5 {b' 11)4 ( vit'tm t'/fcr S11 -VP C'i))Jtr'Jtta 8t frtllt !ILA hf!!!1 frlrteh/ILL/ ;;arms r)f t/t.° r•fnii1Ar's oft' !kited hi eJ!gm/wily') !?1 IFtfflf%flefltf)n which (l') „ not r£°eJFI/r 2 trUfJJiicati(Jii l) tJi, exmtrag froittltll'C S CIlJ'r'flf ,sl �ia1P .F1'ct iJ,/ I/ic W,L11' G't14Jtlgf'S In► -silts other er'r1f11fic Jldf5M, '/i fYifttit)n , r)r'tt3Airlg rt'>rllF7ririlrr/u1111,Le fc'ii,J the I)ivmeiii) \ Si iisfP and mating IIie'IJI iJtl'rzul ie'qui1't'niea/V k g„ tehit I4' tfaviting + tints l,5, aim ill yen fait}1J ►/rrY'1'l,f:{Jttuart tt tat! atf tii{; pe'1'riJ3Iltla (i.tr., t11f?0&' Oh per 1f*;ittr11''ruELe before Julie 1,,1, O07) fl,Jff0$tr'{I iIji.' Ietvi lrrriendirtialP, in the ,SiVi fP' guide olppeathv :f of 1/U! jfe,-iftrr U/i(1licrltJr)i'1, that! their Sir Atft' at t�1 /J',: 4tillrtlf)/,y mat fiif-' new J'tiaare 7fl'Jif i Howe, L'r, /rlt' wis L 4L 1i/7 11£'1 tr1JIJ£'L'S 1t ho du/ no,jlJf fflli' the applicablei!11 P,gifrtsltet''Itlrlite'itdritl'i:Jls, IhR'i <S fJV/mririlV/t tirnerilicItrtDrawly, ihr,rltrs iJaitrrr'r-,'rt' .S IT.14P riehiii)itwt''ar u .' IJ IJtrljcni/oii ru ptif ritiiJ) pi;ihiiani itiltre'ai ^/1L'Nt A/tllttdgG"rlU'IJi li)'ere'?Jeri tfi";C11f)tk)Iri 01141 JIJStI)ifltilrrJrJ VANffrj tJlir)ri, FJILtrritim F 1L'Ifll's11r4f C£)Irr eP1y nr ,£apIiafi ban* ploliti, 11'iue/u 3raekfin L'U/iii"'1J11,' cind 'u.:c r71iJ1rd{rt'J{iL'll1:MeirI1'k;iii nl IdJJi'1Jk1i1t'1 Cf1i1F'r't^1c S3Yr,5fli)lt, VII' Jill, Fret isq imtg pise/ttlfire , taut S t►lif"_Lhu13guii I z eet tilt the Jump, Itt peewit JNam ement /JJri,411rL' C ,111pit'1LtI Odra//ea 1, 400% 7lie plotrs not to be nib/r7171ta1JJ thy DNA Jttrit,{1 ri_-grr!'dtj'11, bat raw he n41iituble fill 1.1s alltIf'i.iJl12lftarl.1ZI _''u/i) role permit, The BMT'rclflrl)'t'ilre'i/I s' Itrl'7Jiaertaiitis' Ir!eiJitle',i {r{ fliks rS.idi't}Nt/ peririit m no lsciv trJrf)i} that SJ.h..-tpiatt' /IMP;; to tifl':h c"aS fitl frtliliilrtiII ,4,JFI!'£'t'4 CJt Fi pera ffte;t/,aiwe it't'1 a suit r Ligrrlr-LJ ill /fr L vinia permit's f Ili i't'l'l.mI 1i'ajiiJrzrnearSLae intended wily tt,ift.'ft,'1I,'friJtfrt'S{tM1t'.t4Jr1L'itt?elan eenetJ:Sand Ini 'ii/L 1nif,}r1Pe'e.I;In ectJtJ)i IL' pe'rmlm:flee,: 1IJcr hottgr,,,i iIY'' law] l;i'Itt Fi 11// ?1u93' applicant c rafter .bite 41, ?1107) Air // 't%JIJJ Z civeca 1'{,' tot- their 'ltt4-s 11 u ( hi/1v en,'tpf SWAP r rgainzciraos , Pau l eiji=dr'erehl)14, and llrrptalir'nlrrtill{i_ Sire a i)tfscript1rui: 7'u. regi;11'erllcrttt to pm isle' flit t',7'1J111r+1d' of the t lilt^u/1 LacslIicii.971 hcu, hcv', rest (iiciJ The i-Jtti-op t'/iti/ tr'JL'rll eta 4'111'J+e ntft' le11Jt,"d'tf fll the S1'i1ff1 may 1111/ uOlrfrthlljs' ili/I f'IL'Iil1) to permit nIiip,IfwJilr,c fit Pari b' Ihe�.'fjtyr1 in di lL'lirl//li//[ (All/nth' s'ctltJ#',S_ SEte Pat 1.C. of the 11;'l'1JIjt 1/un 11J#' bii,r41r11i ,///l 4'IIl r,tilj'()s}c '' 1''d' tf# IIlrr LV{r:'1/{elms tm needed to ?{tic`s/l$1'% i)' r,'Y rattail „ft('';:#}i=E,'er4' RMP detc."& um tri1+1./('Slap el ifrrla 4 geliillart' capacities, El 1{11'' Walton, t',{s-,f See SCCfivel L1J3/JL' SIP %tf) . ilru1oii-ee' (,Pplle'ittlt,l 4 of 11w mgt appttlit)iit 5719 app; TbVic3prii '111''+1110 Itlefl i11'hpunLfstrn:',r rij'r/w 1f11f-1'i+:1r /IOOL1 fpl,ata him &'.1'n t, n,oir.'d 7 h )rlrlanial sk.'.; w (-41)r'raii, itlill_Y-d to the SWAM may not Cal1I,'ihfli6'≥±iff11t'IL'lrfi} 'a p-'1liii! [ [rills%l1e;rJS t' Irk trl, ti/}` if)?' cl1trr'f Sn L%'tc;in;171w thew I6)t'Clf,sfi, SO' Part I C 2 IV the jftl'mtt 3 .Slar,Jlli'irierAftiflaAetrmenr f ltrrlro18 in L'tieIJuJll /ttr,1 lw'h,iwdfied la rer}`J/71' rcl,'niifldurioti elf a ,r1)i': P •ifltl in is l'cth,2' and till 7Serfu'tlllrt/ Wilda/IA truurcre,S m the ,�s�J '':�//', ,Si' Pun LC 3 ti/'the pt'r'nfii, a) 11teS#x'1'11' 4dililrrrsftcJiric;' aJ if)t'C1/:s fJi(IJt?Jilrrirfl.SJ, f:n,11IJ0tJ trtlt' Is ha fs ri.'p-ouisif)/c' fill the J7i tie ti's 1 tt/ ekv440pir14, ia'pfkwiwrarn,e, toohl trrltteac ,ealrrf regsi1;u4 11w ,ea`Jtr1/P Tilts Jrretr1'iJtr:rf 1e1'LY,'( sr £ the i, 01J7/)rsfft4'r7.1 A- prrillt fi� c'Oiiln lf[L1 Oil t751JG-L'j5 of the frlt tf,tt 'c C'I;'ri requir most Mgr ' nec e si(uie ehe111gei to et/sting flc17niitec' ' irsIf',4JPJ,` PAF 1 .'II Vcrni it: M Pace 26 Permit No, r 1 r • 171.18 C !I'RA L P.E ' I T. (crime) • The requit' 'jt1 'ut E'€l kent //i'. Pow 1itkii . 'f thiuu,i Siottrcvx .i(t.LV born 4f retne.JE,:`.`.J tt,, itu Ii t_' plow •-lie/ui s•fl,r ihirel'ithiailon. tOlit h ..≤ozirT, iiii t•- •: i 'h is •'es'u/ttait 'n.•L1/irnsi "j j r thst(Ippro/n'ltJtel se/071[0v • of BAIPficos ft njili?nta Ucrtit;n cr1 QJ teiti V r. -:'ttt..24(141 ifonei M. they.: tkilrt#?t.H'CXY*a d e :t.: m ei : -4 t rixic'tertt with 1102, WAIF . tr c� •: Thh.teiltdreinetti may necessitate. elu rrngc.i try es'r ctittg perm iItr > ~" :S: 5t1�F'}: • I1cs't :liar:'icegenrvzzt Practic s- li ll? Jar , fr -eint 1Crter Potlitiit i•:Ptt'%'critJim t: This' anion iv -as • mods fkY( fa -require the blitvetrc items If;ifettitiresived in the x' ` ': f ..These: ft{4idre u'nts' ,may awcexs liIie dr-t nges.in ev &i'n;;: p rmitt es'..SWA ' : - T is se ?tton tiist,..rett iire,s that- tiw • .$O( AIP pmvk fr invaitf ati?m_ and .(in lenroi;lit/oft .v et ittcr/io#.' fbr-eiicii : ll' Mem flied.4t- .Fiihitructrind 1, ':' 'a•; moo {frtyavi, this must ntthic!c-ti technical drincipt to "ova! • See- P rt .1, C..i (0). .Dcad r to c one •rtstc•or altphqtr kirk pth#,tv1 +lll,�1': J '�f # rt. iIir Q.c thi'g .ti •ptitiiol fix-erl .It) • redi .4.-,i tk 0fr)ttlrf itVtu."3`. (ffr 'JItJr'/. e8 €at ieiti `,'i With' 1,' i ,` t ti-1,ono''eie at'' tvltalt- hatch • f/ari . be' .t/w Si ' t!' (CovnQ itiide r the tottstt'Uct '17 S1tc S '': &id paifillt, l: wait recp Sfiu11v&ti tfr1 ��c t�4wsf i tlfr % . ra a /rnu ttcCl.)1W pp l flat tt• rovgt ake). tr#•e h cle•►i'cw .� f� Sot) 17t' wcf. wf e*jr f► cr -1/tat ,W eikE.ri la rear/rot •:tedinu trttfrciin .0:tip,#:k trot, in . find Mat aft seiC/i fir{rc/xc';:}:€- iu tplemc=,ite 0r 1Itis. t bit* • chf rrt:ekiitcfr!itcd at the 3E•('i'lf': :1110 • 3J ctif t.? ittthirt gt rtf iittf Pif O r iliff tirctr tlr ?/it?WiIty ti' • i 13iii1'irliif �litid at 11a fi. l i .tfs �:f� rfc i �s r�ri i �ot'l , pdF utiori;Poo t it r ;: cW;crrt►tit %• $'aidu..2rff :riccf tl'`tict:• i*v. cic o t1t:' cltpscrib ei in the S•H" 1113 •• .tt au) tettoires iicrt: emtet•ejr� way hbti ac'1i#'1l ie`v'. he'• rorw irit'iL d ii, a ri?tanf#et that -don :Trot tO ,tat i f7 rlc kili t ito.7?tc to :$t?t/Ufl! s It 'j .'Pat-J►A-.14i .•l ti tl'ic pert titi laiteilaW. couilitsrri►tr/r . ourf goirfti.r: d?•yc/;ar pcw to .lt 4t grant! +4`ll if"i'i sty M.1. aft .WW4:7 j 'oin : zNh hlt ••(il Mitt (1fiN tioniztete mixer thtttc; •.ti'/iotilpPeoi)t lfttts. i1:S�t`1TSi (01? ipletart ed.;?.Th: /X'r tla ir'olilrlts Rc dmt htif'pi ..ke f t'tl li rli o'avd to?U. Water 't . ttr:M .is"a(er;s' t ail f 1-.sPent .sc i3'e.Iylift1tsu • Par! . .!. C:.:;tfl) (7) ref the perm t req./tilt fl A' l' 1 Lt ht place to.. j cn it • surface t/nn y7tt,c Of :. . Conet t?te i. C1.VIJOTt1I tltisi's f `tsnf hit.ii c e of tinlitica pEltc-to. 't'ttffllTh- t; ' ;rre-rtivithllrflt #fall& Ire t'i :.;o.i?tttyt317 pi'i'lt``(is Color rt to. i -13/visieft #((Z$\• fiUr`t1 trK is%'{tl iolttl(l f I :` ttee j :the' .o. J:1cr if fr / ;r " L t� cicw r rr of' r'ot';erele• •St'ash tlt va1cr ft taut gi'£f iftet• he Divisk n ittzc .dcf€` mi#ff'i'(.tultu the-(melt avpi'upi`Mi r 'i 1'•, f r •r i� ' l s. 3t' '� i . tools i y - ' .. ��3. �, '�.�• .�r .�� : �.�:�. tf�;r,.t:,� t..t��._. we ��tft�� dudes tats..Nigni/kzrnt dkcilairJ,II.., to. rn u tdicvi r: (fL fP..v ..o .jftt€ cto gran/IA.10e . etre r ivul, tai kr • Part L L ft)(7).r •tttslt. !k&ttrxc p1 is. ?I Motititant a/*c eincerrt_if) ' WalitUtit thtilvitie.sp lbe soil. mist .harer i r, rftt�� l �f ��r �; cgjtac ty lr; rte unit in lir'o1ecat..m .q1 It@twtktwawr xfam-Jaiy!: iiite '/ 'oiitah,ilzejfj Pilaf be. 04:Fdr. .ThelbilowittOminagemon polo t:fre fl' '' lI mernied(0 pretsgt €Tni' uup€P#:'•: _ttvY/q •plftfl ied pity itt• i htW4'if. . .•M.• e oflhe'if'tishthil::YiteAlr!ffikt .le't3fpof'ai:f.` r`Mgt.Sll#l•.�'C'f'�."�: •12; - .thre • vw Etorit. ;vile ..chatilt1 bir lint Ice• i oaliteyt ' jai a ifrett ui' pr t, 'emL .suchsIW near mt/i/Pae .tltriiiut gc ', ,i pring , W' wog j♦ Jfe�:.,�. Petit r 11 Frtalllf t T I11,0 Nu CUR -0300M 11 4 I/_ i.','CiES Ev 771/S C;1:,Nf'1t:1I.1'1.J�')�1II 4�f)1rt whoa, 1ttIL'afllftts"f1i:F17ageinvat Fst'[,Y'0r i we mil f(}/{Clly'4fdtf►11'Y1tf>r'Jk,}t alithhs.`rf317 rfrltll)r1. Ph' Department 1n11) roan r'1! ii:' lull gf's w ?mimed ptl,ii to L{}{151' m 1 e -quirt tf!{ f'tl(; v' Ic (1bt(tttr !Mein le r'e ;1ilcltpi v :J#1/33 0Il'1t1 through m 1tt'eJ!`i'nr either the Water Ovally Conire,d LJil'15rL,n 0? the Maw dohs. 240‘ertalx awl Wage Management P1viao. Ill maim, Patin) 1) I (.firj of the perm t Jim heal 'vt'i d! ra deg: ly t law Mal lira' pei'rntt f111(..5 jlnf t/Jilhoi'k£: on -site permanent iiispii'aI t'l an '1$'tL''lf'31ShCr.11r fac1C, only 1i.4r1,1Catcn ' rq,tlralt4?Jiit'J)t (1f, flaticr'L'te iralhout tuatEefr'inn fl1111i7ig tI /t1(a1; and t (a1lF,'t'w 1111i'0'l CI1111i:c (pa?, IEtrttlnafir)r L,f JrsL' t./ thg5, si R111(Jrrt .W4 '. (1+Y'rtlJttt1ined s{i1itl wage, innt-llulr/1g'XJII("tt'lt' i4 f) ,re 11/1(1 ttl)1 t"(tttl0rl?ll/fttCi'1 Xtll'S, 11111.11 I7(' r'r'1r1171'f!1.1 fixlrlr 1111 5Ili' rf1 f)Pt.'1>:'itl flII-S11L` tfJ417J15(;} 1 ]j r,(.).10l$,m tL`- 's'r # i)11.4iI-ueltrul Re -s5' Merin;' pal t 1,1) 4Jdt o/ the ptyi ft 01 has hc'r_Jt r,ar se.'el fa rand,. , rr1IOIIV tlEt)I1rJF 1«l flu tart gczs hi 11dp" gui end of u'{aiet .11 QP(- t'O1111O1411.O1.1 .011 den Weill OctT'lrtr'S wlk'rt apply.), ital.' LE' fll1 Ut'4' (1/11T1,.'1nenn'd life j1tfI'rnft dam mg outl!arnno the ifisG Ik/rgt' 0/ / r utalr[Iss'c1J21" 11'017t ..01141 11( aim tis'tit.'ti1fS'1'ii, ' t(.1 51erfai, ' ft`[tr49 .% ut W :,1O17sl it'1}'t'J' ),u -6'f11 % 1311( I C,.ilc)(h') ell the permit 3 .r/rltres that i#4IPt be inploy,e to pi - own n sti 1acf' ift..LIJrlrnc's_ The fN_'17millia 1rfrlj' ripply for 4115'6n.iift' trll(1{'1' a ,tt'ltlx/ frtt' C >I'S' CI15('It((/ t' f,'.'i in/!, srfc/1 ,.a5 the { 'r)/ttct)'u('trim IJc°ts'111rrrtlr; grJu7 c i pr.'a trtr,, 1filh,r[: Ls 0 j10kLrnitll for dis. har e... /n 11t£' I)1 Errs r'In IJfd<S cl''teriiri,wd (hot pttlt't:lta/ 1rJ31111tatn 5Vli 'Ctt_S 11.10 iltlm ed into 'j u)(liI awl" 1(0111 c-0irstt'rtt 110a0l41l t'lliL'r??J:; opera/lams do mil 1Jus'e- a 'Anemia' 1"41.5trritlhlf'tts / t'}ltfr Ut t.sc t•cs.1(1t14 r ftf w (bldritllk'aI?'/ Oimn in f1x :s'Ir:'JI the dMi /rrrl,)r IA la till s t) rout. i/n) xri neat } 1J'itl3tapt IJf Out e..1YI 1)J rriiciiitat,)lnatct/rtauactsi'stturlt')ir 1fthall lit lef.'llrlr}fa. j- hased ;r1c ndo-n-1 t 1'P $1'alinte It dO € Va/ ul 5 C'C R 10112 41, the di ',Charge Of .14.10tir.'dit 10 the i rutrtl+� k/'x jell J iJr 011t11 itr 14.71 011 f/Li1'rriL(c'(rl.l rlflt'1 1M ha t t' the t ecr (YWIJlf' prfrianil 1i/ rei r,fI m trim cp11r'r ))/ ,3t'd/ime-nt to the Lit oniitF s'tllr'rwuIth'. a (15 Jfr r'L',i111! 111 an eleeenta0Lt," in/ t1i/1,`.C' SJ[Ifi(1ai-ci, J'`{)r LI1 Llrrllgi o; s'nk't G0111:lilrtlrc/i'li 1411I1 otherpralllt:tntlt Alt Orr p::',se'/tt in F`t't13r irlf,litltJlrs /hilt 111(}k CE1rF51'1111 oundisat , 31t11ltlra"LIS, ,4'Lpa.rt1/('CMS flf s,1101'141'dpi--t'i/tfl '-'t11'enlgL' tS ! 'C11111'f'Li' i._i1;t11ed/?lfiPfled 1?f't/;1/r;ltr at4P tr.'11i' ITT•_ulihl(.`1/14r L airllrrniruulttll tt'!J/x /xJltnlunls Jr lair( (1 Ittrlrijfli, i.O'Ulttfi4 0(111'11x', indu0'01711 /4111111O111 Oh 1(1)14 , 1t11clif/ 4/-filint! lar'agc tculrr, rrr° (.rrlre-.r' s (llrt'i i 11O 1111114111 ni1a)&d/1 i1ldIJJ ci gr oii1fr>'rt rllr=a' fnuf/irtii tl had F�YGt')c/i.11�'he Snaite' gr-ouiids}'tr14'r',t{atttid)',fs iii 1Ee'i4ltlittuJlt' 5 4;'4'1 I011? -/1 and 1', LI'flbs e?1)rl"%'r1fi. 1111�1tt;, (i.. �Jvrs11 liettt/1J It,tllftf k, .if-,�,t7_ S'1wj1iu':fr }/tti','Ftimu; '1'im QJUS I/it.' ?L 'ft lire -We -al rI/tafAC:C`dlrfies to-1cL'J tnutafl, implement, I1 f 1I'.s', _ class in gaiia./ !ng11r:+er mg-, 11.1 rfr•r,1hi, u' and palliation 4 anti ohjaeaCtr('es Itl f441(1111O11, rt i/tr'r'1'11t('tits _far p}t'a)f!"i lair( [3f !tiller gnal::t ,rondai tt<,e- Part 1 I } 1 (at t6# the perm it) and rap/Mtn-fib to t1t_Ft'fliltulP/j (II'S're=tr ii YJPs /rr pr rrt''.rlt J't)11t/fJO/l (ra rl1',;)1'ttalot(nit al Stale II cflee Pcit'11 [) 2 n/ the ls4'l'Jttttl trir"el !wen 1 eivisc ld tllril u1'e subs` siat ILS'tie-si m An 111,8 of I/I t tit11.A'JUIe, below .411th 1(1tittl language u [1,X uh4'i at/i/ct?r I;) fsef't,ian Ill,li a1 'the r il(11'.(11f' f irt/1er c'/,Iris'iftg 11w r'x,c,te '/1t11ans fin- comp/fain c' s}'i11r 1Irts'net t1f11 1 lailfa..rltvij9..6ter#jsttsf' 7/)15 ''c'i;t;Jl /tcir bt'i71 inod/jrr,(I to c'fFrt l f>' that on -,we 'tt ai'It' tlrih5l J'rprtrliL)r r s' ►11crr,utit'fl fri prim f)r/fe rtlrtf p,TI/utron of .Sialy' is (Jlr'J"r_ (uu.lthal IJtts fri')'r1111 dat'i i)'dt authiii f -L' fl/)-lf1L' 1'tiislt' &A/7Ow/ %llrl tli'poca1 is )1 i'trlart'II iii' the 1trrz,tl-tltlus Akre/ loss (Inds iVasie' 4tr1)rrrt,cirar'llt )/1't ,i0iI PART I.1 • Pentit }'iii c 1St •:lt'�'E'E3i *NO • COR-03Donn C I �/ NGE�,� IN THIS GENERAL PERMIT (coot,/ and* t..r;qd it �'itr,';..:' '; �1�': ' �tf.ti5- Em=ir;t.v S '' tP.PasttesuVchange •:.'This 4&:t,now ; op.tire s i/lilt when. c/n ngs S. g'ti~i;- it ad j,.fro , ite. C{atkhll1O/A, , .ifi :y SWAIP won 1w :'c .'Lc'ujtf {f ffincidititgly, evreptibr some DM1' d:'Ycriptiorr t`/ter g( ' f}•`./1(C1f r:mt t'ssiott t, l . may wive vte wjth ,, 7 hnu; t. This Y' etit lttlfl ))t .ts• inthitk u' 1O both t' 1t:er'tt titre ihitS.WJ'P Ite: kCfl/1t #t'•" .'tlt`K,ilete•t t /"1f.#xilr_tt :t 'fitt f13 s'u:Etvfr i/ttf;f?Mtafn )tifco iittrutgEsittni of I¢ site f n.1p1ca//ct .thort/d be.proactivefrofratt# topeossivei h s . tr/t �rn;nk; .sit maimogeet erli to • ay. tru- it i; ralthra/eu with . (tune • C/fit! ;tet The secritot we . . also thins/lea In . tat .f':that oiily Oranges. hi SI/V • C.'tiit fif ioiis• that:4U fiat re iriz ,Y. new 8.31 `v-• del ftmit •'nwt/ / be ou1dr•em. u:f if, the S'fl"ft'I ''`. • .Sei_ !`'ae t..ff.11.5(c) attire Irwin it t i !' Cete ketti it.710, l' �i' 7 f �� r; Xr r: f�. �. �, i "�' � : � .� t��. alt ��'.'��.1�1: i=1r��a �- f.�.� :��:CN1�... �'t ` 1',�jt �f 1'�. ��"#'ff#'� r i� IFt �%i'f�d� �f7�. -eap'j•: E.0:15 ifer ��ffY that reirt fins .at the,f :cifft vtcft( to he .•vigrw:d in u :'ce.trddcuwe with. pefl'dflht s/gitata y tgiiii'cf1oft v.. 77th 'f-4,rr/z l i ;y jt 1 t f#Ezc'-heSt de/?ICI (7w.skn ?MM#1 '>' '1'egi1:1ree r of n117az?'.i 1 ≥..I :t m/ r' crpplf y totheih0-Ettel.40 Is''s►fTli#ti efi .10 fi1E frisfrm.or-to }'rttt I V.I. ftftIuiP irinii:. . ��,' ftr f , ,fr u tita i y�i. 'A'ci-s' t tr��t� f� t ,r; - t�N t�.�c • . 7'1tcr i r rif Oasis .:petrrtli i'egtUn=t!Izr xt-ltAr/li is � � ��r ��w�; . rtt Ski u'ii ,,sped 3'the tun mgt. Ot'inspect t: xv; 5tfe"tih#'i. ticflt:= "l'VFjttirres. dud f!tat tmt.i r vve9! i sf" &iti tth.g&'iwral & 1w ct'11$d##L'k\'/ within 4. # :3it s 'q ilft' event. An rf!tt'tl'f i:'ttive.ii eillif: h� I ' I1eit (111th ' jt>f�. f ri/ ' f or"A'ittr *ii'here there' Ora . Cr:M. /fl!O el .iT • octh'1W1es otti' irrin . *.• 'c /f ii,wwvtg a sroorwt. event. F#a ttondltm. pot-: -twin t'VQUI rrtsj ct-(ikins . an 'la/cad be .:t mblekY,*s *forth t't"1t'tf'I!'/tff -`i#'tg" .COrti 'fite(zrttr lid hiMct I1tvi 1it1 Farris (frith 7,t /f fur.!: j /friitring'Iliw ,11:17'71'3 Elf116.10,5 natal in the /# nv:'k" ` ro remit: � r':' �+►f. t�;'tie? t; '.f3t�'' fur 1YIitctflfiiiY .jrt.'irktilkilt'Aci1 i:Ith s �, h wi orili { ►..ctutd ldC3 t.iii�1 ' 11th � t %�. j� '. rel��tiraihe ne p ertbor moot! owthawarree due to the COOCC:'LN ()fa storm cvctih. including.'itlattuwittfr'i ..'y /sic .f(rckking nrrotsi 1111(1 eentoirititstdithi tifit let tmpti'rvrrltt'% arti,x. *Huai tytisatt.lrltlissirrrut;f:tr nue iv)/ / i' 'qutf eta rl Y r - ► J � � t I J With! N � ♦ � / � i•r required. ' • ^ / ��i_ a. ?Mire,, c.grn.(tct trt. ,P(' tfcut : eliatilti • fi:ttrI .t�. With!1 if eft i�3;il:tct.lt�si;�,. In tire,x'nn U, Ica'ela e that !k: .Y miff/nott .:O/Wt'txt aas flc rJ?2/ tl C'Otjt 0:3 with the- SccPar?•La.tiler) u/?he permit • Tht' 1V.i1tier Ct1t'fd1Efic"/rt•tttfM: nett f'egitJstt f=rf1• ; f i'3t tills arcliuxlort. S ace Par/ ,fit / . 60 of `1hem! fit f: . ��t ;,'f1 t�s' .' ' rat :: i "7pc : Frwc : r ��►rt .. modified to. F�'f �J Fl i e • t * •: ' rfi 1'.1,S +i,{ t( /;', ` t .02 , :� roiff ag •s• ' f • 1f) . f 1' i1• • �..• t. f ' ' • • �c: �ft�: � F.>��txts �*trt�_. � �� der �.�:,. ��r� t#t,., ttt�rr tt:.� !'�c��t:1 c,rrt't�ittc, tc. R� tn ciccotztathy with (1w perm t. 'e PS Lb. (ilk of 'the permit. The r'e /tttrc'PIt!TItk,/?J?.tuff t inspectiJti...keg4oale#`'fI't#'..cr;r;ipie j:. `t f S-luit' j.bc`ci: . x1:, 9rtty r u l f_ex. (Ave Part..11:1 6(a)(47) r i t/t'" , •9rm•it1 :..:. he ividr ntett! tech; 1$1/t . ftrt3 - crt'tsoitt/or; • LOA 11 ri .i t•�c' t{ f. d. m� ' jhujV S I JI t • st ,�` 1 r i. 1 i T' 6 k '• m pt7 �• '�;' '- ` • • w. 1 • m activities ' f . ♦ A A , : , 1fL• A i.SiiG_ •/r r or;t r+ rtes t �• t if,t �.t, t i ` .con , .#01. ot. ijr �.ti t a tit.itie fiF;rt:�ah.c if cmwt trcted itiithOut e/istttrhit rce •ref 'ffl the gtc ttitd. <<ttr'f ire • f ?'r '.tampiet.:in!er= ��tt' }� fir/lu :Y r nnistrfr t i'ii/ s " fm.i. au welt may /dm 'would not. prohibit d Site jS`7'ont:0Ihen'l�+�i;' • dlCltd{}Jppi'f liJ{`'�F ite the j'imtiti ta'aT •!n f at"!'tio • •ft'.l tmifl;t ft. tsrl;frloott, Me f• .q;flr tgjJtsl'ffrr the st . to* be preptrt'crt0tij /tiw1:sftzbxJt:attap has bolt . JIMMY lsmd/fled t0.0ll nc'I for Rites Mat &m&mt. w w hetlif •[resist/k_'d brit tthif v: tic f, o.site? stle}. ' : -tiMervise. bttett:prevoted be ffir : i iptiodiv ttWi/ilC 'r Ifr U� .f:.iprro ,art ' e... tt iireittitratiom •tllrt •'Frclutrtf itc. ti ail {;1t't1:ff2/ftt3;'t jfl'aTell':• -.17110 011 ri/.tfoit' r Nfit-in:frit 41'tilt seasonal t: ', lins�ttlllt'�lrrtfl. ' {�r' • j> { J♦ � ii seed p �y-�• 1 s - l y12�rs .may i t s t ys Y{ .n} j) 'y owe f �6 t r i)/�} t ..‘then- x. edit h [1lt r l seed Crip�l'lian oir .may � e .if ede 11/ the fo �e �i''i .ff /I quolit . . PART II T'Crillil - }'d).SC' 1 }'grTi34l i 4f1, ( tf t -U'S II 01 €, CICS IN 1'1#15 t, 'ENs:R111-PER 1117 (cow l ,i n24' /lJ?itlr'1Y1£J8J RJJf/f7JY'R£'CC1l.th SL't') frlll (I ein 11) ff(h/I,'It !Nit rltifidtt(J Lltlt'r°fi ts'Ifi iir171Lri14 ftrr- (It>xf7rtctirnil rc'1riul,c gene? cltrflduring till int fl('a,flann Cvrafi,ci'ki I1t (ICalidaffee With Part I f) r. of the' pet tit Insr fetutir I L'port i tuna ?i' sJgniid In the fii,4'flf'L'tur ur f/rt' tirdf111r11tt,I F,'errt1'rlJf; the d' r7r'J'4'('llti'{' ?tf`1IO 11:141ftfri('{I11t the invec7[all t'+'f.Y7r't,'l)r behalf'31 the It(.rt'11F11te,. Ifztifi t'$iuff i'}'Ixrl'11 r/l'I}lrri( t1 j Walfr Pi tinned t[1 !re ,iirhntitled (f1 Ole f)/i'r5Jrdn {11Jd fIJ 'r(:rt i'r, ((1'J,''riW 1'i'(f!{jY! rl 1(J ite SW:ea and e.t Plied 10, Of'curacy I11 Of Cl/rtkin e Wail Part f.l' I UfMf' fN (1.1 it. fkkkti L':'r'1: f2r'irr 7 i'f?t1C1,5 that a1rwin/ailed lathe Dli'JSFt7t'lint“ frlll(1I. the ,'igJJatf)rv1'L'(Iittfentecfhhtfllstsltiic.!InMot ;yawn 1 c'f Jlt S and f '(Iluhi7111JY iir/JRt('llgii 4 A ltlwI� /u(1fler/krf_d'liLtAttl of (ONLY( i fit trf'1'c i_4' !hi`SL"rertiati If(%t'f,' /nen a{fdei ttJ 'I(U'!E' 1 eaiuiree wifi for ;IU I/JIa/IJ111C,'the II,1#fP Ft1L'in(/ic'il in the tttF31t1,II' f4FJI/ 1t?r arldre“)/fg lJlt?f}['# Itt'i' or Jf1./i!d ,I :i{I''1 J)1.1:1Jtena77i'f L717dAtte 11YSt'Y.R111L>!rt 10 dclernifire 111" 4Itu etfi fit/4voilej of k$ I(J{I#71i'[1J6'7 if'$ /((l l7JcMcigC'r7ti III al Ilse A -11r.' 1J1hVr u('('iirpras7i iii miler f'f virxitre adequate ciliary! iJf p47liWu111 S(1wl:eS al 11W Sll(' I1: nu J f'4(W', ft ILA 11'6. -WV altea46 rltkt offer tech ,Lf i'tlr cris'elr; or hare AMerd, 11(L> ti,iXh mutt IN''C1: d/N4 ti'I/ r1JJ111C(1141IriS' taintevent f11s; /J{li t (/f7ldlt111lltld Set' Pro i 1 1) 7 trod 1 Ii of the prim! t Il t) Twat bffllu1l1I11I!Judy l,uod(Iltjfl,Cj r3 tir'f //(,IJ ;I11 T71'IDLY /icri been added 'Ifni mum ,gn i'c ai general outline' iltf'tfie Jlaldlr[ultal i'tull/fcrlltf lf$ r/7rlt tillrl I}#t rtrlflsxsc'ft f11 JJW 1)41L41Iuj J/ 11re,',fsli'litp t)15{'II(Ji'ge.'tfo a water tint/#' ful''Malta 1t R1 iim ul{'i 1 elated i',1-f11f, vs in Mayo St_c' Sec/roll 3 `}If,C' u,lib1 rationale uut1 Port f,l)111rfT e ire' eat P '€i_kiiiiflrrf.l l etbi1ir nc IItJJI / Is of Mu pi'17mt ha\ ht en modified to ti'f/w'e the d diiri11f1n flit-ittm//ttfit'/ieleni, as if Is 00 Lamer a permit iL'd/rlil'L.'l1ltilr 17,e ilfaftlil/raa3 Jf',4irttt.' 4141d'J) /lios aii{r 1Jt:{Lll tht14'ti.d, IJJrf tali 1is' kind Ail. Regulation 61. (7 % line,ges Jl4 /list:11a! r(j The )Yo: non (1/J the t fft',i I./ ills' /tap or facility 4'hat?gi't that hilt :3J flaft' f}ll /,liflh 1hJtltir'ilffilll bar- been dill (IhitI See Ptir t II.12,! of 11w p x31111_ I_ �t'I+1J—L i I2IJJ;:id7(t'-I' NOtItiraiklif I/it'S4'('tlfln Off 110(ifl(Yll(ttf$ iir MO DIVP(ir?ii 1"C^ tftcIJW Iii 1aIlL L'i (1l t"rflir-t'#JlilplieCinCc" b,kt boat 11Fiti'ti'-led Iv chit fly il'itl[ It /ipe',s 0/ lJPllr"Ol7JfllIUJJL'z' 1 L'dpJlilL' rrr113tiCtrfl(li7 See Pot 1 11 ru the p4 P11edt_ re, Jri C'ehrilit flfrtnl 710. in vinous permit {,7himed.snut 1 short-term euinlF7ie(UNt attillitei to fii' rlljt/I t t`uC'Y/_trlt a1I7rtiik'mwino/ /1C'l'Ilfil limn 3 10 12mouth'', .1nnrl Ill&fr≥fh iP11fIJtir (/l/r' r'1/'irk' (riff ii it'flltrifirttrI #'tf ielr didlrat need it, h#' i1Jn11Jrtti 1) The IeSJgwr'tl 0) the i,e a ftetxfir;atirnt5 /tag lea/ fa tttvulfiewif C1.tq/JIci(1/l Ilihl IFJL'1£IL'm ' u/ 1 iit.Yl1Jfphan('v' l'u'_il/ltutg front poi -mums {UIJJJIc1J/JUlhflffelti1J,:; thew f.I1 t7ft(tlflfl7ls -eyrie in wr /a fitwf il(7llikoturn, 111 wi.'!f (i1' 15sllt;} re:gin-ding Thers'lrlf:.'. the tJY(JL'f11d1F1>jOrSli011-/t'i'lFJ ('t?'11fti'411Xr1JJ,i iJiIVc' been tl:;l[`tt'YI T th u4; 'I Ei D( 'l%jdu) MAY 1'e; t(t'd the .:),v lzi Condaiorts in Pais I1,.1 .5 Pi iht. 141r'lrrlt fo b = anal( vent is Iih the 1 ('/Itl:/J+l1JL'Irf:r or i 1itjrl/l1,rllJll N3)-( 1,1_ the rL>S'ilcd icsT,;I)Ug4 fltddt'e,s4es Ioul'1 wino ?are or'Q11fY's If.lfl''i Mar th' lls'11,Ptsec1 at CI ',tie :PA 141 �. . :#}grifit.4. ritgt 3 11/. ./14(WM. otim .A•t r'eflfrl'a` 'd under the .C.'i v n fewer tiMialthirrFltc vf'.19.8 ,. the :Ei; virt'rrr nettle,':P rime:4tOi = , ett t% (EPA) hai • (.� �' J.t � I1 . fe. jf�/ ' I i ' . • . � ♦roaming I I � . .. ` AA -Wry 1 , ♦ • r ' , . � '� • j . �r � � � � ,•� 1� I • � ♦. ' 1�. K w R.,. t��;hf k �S, a 1,lt�trne:it Mfr k,�t..r.lniani ipoJ and il:.Sf`t'3J i1Fit•t.lt t.t cl�i,�.f_11ai,� 'il_1. . T'.t ix, fr nttr . to en* rs' 3iflri::r ft� Y 0:10M 1./'c IThttrfrt •OOch€rr,ctc .6,1107i.0re :t •:S;:: 'te1tt OVIM&S'J pro ram . (NooIt': The Colorado program v . . rated to US t/JC ' ::'o(`ttrc Io: Dischtspiij .Pe rtrr it Si. star, f)/' .+ 'D ''S. •b iste.f. ; f WPi)ffS '. ' art Waier QualIty •C v rmr`w4 .i: f'vt1;s' j{art - rate 1u tv. stowt i•vttter rtgulatii s t.5CCR.:.1002 14 ';0 . th Thoth ttgiifa ktrrrs• . ruqfirlr•,tr -.CIS 11' 'i it f 'I mIim'Iria! f xiiiii 4' :that iticitha; c-.'3' n-n;t' 'zrtgn"' tthadaled truhistritil oc(Is'ity (fraitif'lat• ls'-fl:u'nnyirler'i::. ttr :rr:f�txrrrr a.CPS permit ; u' such .1"1fregulcrtkuis s 3L?C' f1-a!fy 3Wluc 'COrtsif• s :itc dcicv'il1 ,•• Mot ciisit ti -ou t" art:rt.0 lmr ormore r ' ifi diL%tt; tjl.firciiil sr:. cti 1 t e sitar on: purr- u 'a • h.r rgr r Uffrjrr.lo. . 1;= iir 1 devc'iofYttJc';If which disturb dilelite cif'tesre:a era tier/miff timnlfl'..aix:; ft/Caisth I .The. Division lro i/c/ anrr fa re -;/r rt ate -Use .o `gi!iwrraf.pePsilttc- i:: i re -apps opr'imc prom/err Eli hitifd11n4 -. m u. t •o(/l10 .f3 clisioidel •o i[Itirtitwaler.apptication ' the �:. Trr•'J"n 1. !top rrg#i! a�1a�.S 1•#ci'mlt dot':s not artinw nthi e1'3r •elf ttwlt; tin:U t!'fl` /'vq:iir€ •sfibre: ixcl int .o idibi mi mtfnit ''lug ltz 1 ? .ifl flirt IC!`lilfi o . ttc'wron or 13-th' Soviet f/X4`t/ ~ .TheIke m t Stead ?A#0.- !fact-ltd"c:ghrlxtd.e lit. tt li itch{fim ffn- s't'O!'li wilter.t istsi tiese ' thrr tiO the- i 'l!olteJUL'.ftf to lfE t -v. Or and ,'ittrhi frtf f` �� 11 f ,'��'fltt'�fl /'Ia.w The -3ltfr't`(tit t't! penult r`t'/I fir'e1tit n r Itichtde f fro ibit ut t' t ci(i,::�'� d is'I1 trsidi?I' etkift4torni wafer . • .4 : t1 ce :process •yet ier° i. See..Part L 3 .01tire per=mit_ ▪ 7/ic p.erini! tone 'Fair :x kn' :he -SIV A:1P hic /nile e higsti eirteitt /fryt t hharOitt 10 Stet;rn.1716* rs c7 r1 traht ,t=encefil Preid1 ' .'.. ,�. al �.. et : '6r: i't '!>fetrett1..Fitt theft chit ilitat clv :1ntrill t - . F rtitrtr t.: err .¢ i � ra : '�iclF' ., �.s� (1 3111%' nr )lfrt%fl'E? .with the- runny and SiiShtitreis' trf'tlm Ormit',- Purr 11 ).,2 U, the 'a trim •hichdtkx.O.vie 1 .':f#t orpleith.o ted-f f t` fe-:iFPtfl;'ii#de. -f Ildsud'le•i>`t, lf�• wink ing;1 rrrt-ate;::thiO.i71atnteit i-•apprnprrotrf. 00.y.i-cod lifghn!tttrfg:• r'y d'vll_fgr wit! -pollution c'c�rfll�t f lrr•ttt. fit#: l .r l!' c. ltrmpi �rfc'/iced .at • t/u he .arlapiate l v dt?t igrr. ;i! Iii cornea! a; /poleittitti poll attire .ypyl''j`y 6risrC(tik'(/ wit i eonytrndi off t1ct1vin' iii o•tivenr pOt etiof(•cit c £grarkirides r1'Sfi'll water*: Pollution fs' def iticrf .in ' C4L)f S * et: or/talons (eek .t 00 ^11) as . rnun-made of rimer; 4ndtir: 04z . a- nut in alt; fro m of*the pshr 'It/ •al. chemical; biologie.4- cut•ri nit: og/ad infrirritsp.of wetter,. t r' hieing. iitt:f►isf$ y-we171'/;fed Iimf rr` rlurtdc jar -B-l-frr'. xe/c'ci1,uir drift•*are.ar.7ptrr rc ipit l :4. it g air Thnt;.v. arid piiiktont : ryllte.v: pt►Irk . acli' r ndle **stied these ? ?xi :ii;n b')tT ll'ir.',veiu/rtf. 10 prIitvni f'/f!~`• ifthorgepfall .b##f • tirinirrrirhirr1rrrmty r14,dilittlit' it pikerpoltuta rattltot •switaf •nrs t itsttit 1,1 ikon -rat / Othiriout (Farate. water-.. ?1 11xr�du!iow'.../Ivvn '-' i sit.0-Y/s 1i;jf`0:i1n1g:t. indildirikEntictsoing aNstnfitrrrrt r ft" '}� rimep itfutairt-antices•. .• ' -niece isary 0 EII S`Ittt that. •8Alr opw'af s. ( 3.- i nw luka ..7).. ;s•iiemik,f#! 'thW'•. ' !oti '4:4'• rfiafc• 31'1O?'lwf WttitT 'it,.'C.l;Ut'galkatli eons trite/trOA FfOrt Cas.thi_'► .!1avi -th t't,'f, onc.fJr/(k. potential l Pieatifitibly cottll?'ilnntc ili an..cr n:4iun dbot s- airy sgrater-xpwi/sty..c'tarWapd- • '.fnc'htdir;g ittaitativit Sttrrmdcri`d& f&•r• it tt t quality. *Mix onirniktit is` the- rxrr:Yl �.1 �{• cr1/.CDI'S Disehargise.pertithict, • and addresses the.ntsed 10 nowt that -waters t/ter State! iff# Iirtio r (filet/tote. -fiver guiltily,* :ftt ac1;e3 '[ t'lff.te :with •#• 'atui' rlir i : ►y . tctnd ,tri/s,. tr3 a l niin to .010.'i •(IIgfr designate. .11 ..i1c• /IC ?VL.'4 tlr tr .irf-.rrrrv!-• asct ..8A1Psistarf 1w. odegirrrr!- t .# time appileotrfc water ffwfitV gsY. telary.'. IR•s llit •qrrtrfiiy•t rr/3c'r lg :are. ,$t,frti,. 1' filly'.(fir . jf,pf (11/k?nc'ic !`/ekriif'.t#'IC ': that heel /iffimal p4 `r n;;.i? .ri:ipiietf1Yef it th'c. fr.4.,:tesdryciiilif ore typretaly aN: t " r ok ' 1. r ilrif a'ertewa/ thiv gtr4t 't'c"ll /)i'rf;lit •Or f irmigh f'f , ethitoi j;e, t fi 1 px'x;`//3c hi' tin.... rlirltrslit hit Nectar (;/ the t isue t1t ...stetor_['astol/ • 2 lIinwgIr d ttelfor, rise ,Wes ryicut .bayed dim . N i� 17 �:.ni�c;ttkfii o . "il IMO ✓ .( T:1le .tc,cill.� i • i't1Wr ed-!; srfr/ ? • -.or• • f f t! ifi'it• tow- {c .v1 f ri .s E:,.'' V yr • tIii• 7i'l,'I? £1 r •r. rl..t'r:vito? :(t'i gig tot t/Watiril1.:fi'omI' the fart•ision. based 60 Ott /tweet ion or -silly" p ui-ieif.i or ilr; ff#t_ir -afl. - f+SFr€ H €?eruin 444 31 11'e.tltifi'"aks, Cf -{11()€ li0 111, 13,10 `U}{()f ' 1.) is L)1)1 / _'OJftlt`;'dll7.31t'1it 84)11 ,'s I1( % 1(1€1t il: 1-(/1O/ ('tt Iv Lr1i11r11' ii:t1J fl (ifirldi llt,4 Lot (11 Prop tuin place tit filc'elirlr; sulr'I'ta/ t ;t'lite f)t.Y,'1f11 1 r:'l/l11t Jl11r_'i11lrl this [mum' Site,s i'ils 'F eel /i t1 £?ucrtr/j 11;,,5.1,(Va/ f)1`(1,cYIII)) l)hJf' 11{}t req(t1"1't11f)'111/1/11! <<I) tfflp,iseatrtf1 J,r £'iJt'; rage. or Ii 1l1?llf.e £!1 fruit 11SY1/ifur Hod 111O1 Aril1w J'r'qu11'tl(, pat' 111C' 171vi,iIui ;s flttn)r11/,ji'≥. SL'd' Section VII rJ/ Mt' rationale t' f�rtiipfll)r�s,'P 1u2l0O ViaeIlul,e)`i I)j_sJs)rntii.aF ,) u, /'LJ(;Itrtr d with urtlfrstrnai uc'tavity, as defined It1 the COPS re illo11c11fr ('{:Cite t OO.4?-4)11, that ;1012.); °Nall( s'F)6'Ln-(Li O 1111(k( 11115 (1t' Otlit'Y ('r)!r!) e0d41 14'110'01 nvi Mat dal raider at) F)riliS11111t11 /J( M11t1 )'t'S?111(f111FL 1t1111Fsft 1611 ilrirm,s' afer, ti'111 be lit '`Jfrirttll?tf vIIilt' litrrierti1 Cleat) 1Y' ,/,1`.'1 laird the Cr'if wtcIi, f 'rijr,, i)1tt1/711` Cutout Jo, 544 /01, Pop I+(1L'i1itio corvt£'srfll7tit`F' a CDPS IJt°1lm!'r,Illlitte' to i'r1111 f)I !' with tin) CDP,c p'1'-'17F)fl 1'Ut11111Y'i)1t'Jrt i tomtit:des 1, vioI111tte17 .1s (if I/U? tart' 01 pernsit i,$i{1jJ./1ce, c'fv11 frd'iw/itt',s jo ' D'lwlutirio)s le the riot o {. l)PSi elltureuit. nIA uteri b ' irJ io N10,1100 , do), eJ'kit J tJi311)t:l ixsautiini Fj,rttltt Ii',at01" j.runis&tblr_ bt Jillt.s x311111 tr'J $.2i,1f11l) pc r1,'!y IV (NOR kJ. ff.( 1'/�1� D1211.11.'1RGES'ASSOC. TA rrr) fd`ITII C'Oi\S1RUC 'T'1f3��r'ACT'!1`11?` The .siorFlisti'.11t t tyro/lttlrtrls' tt:'IsPS : ':zttltrtloa,s i x{ / 1002 OM, require that moronic -10T JAI ho ;t',a .4s,stft>'irlloi ss'itl1 Lt'i't11r111(f4111strial tit-1,1111ei bet Fit'{Jff11f11,11l1 the jtc!'JIJ11 f111)m1!,11 L'rmi lluatl'rlsr 04.1111ll'that Chitral'/1,' (lilt' air1t'C11 11101eLho'11rgthe t1$C'u{the pirii''af}'WflI:i' W'IS'lftItided11Ji/U?rt,sIt't/1111111,5{1'lfl;rrll1'11f6;1 7itttpr ml!JS (0ICrcdi'd101()s _r" lira:,sl.$rcrf•IniiWO' t11it'1ruomF, Iron 1'o1ESFfWinn Pell Win 1?'quiredl/,,'.StilIe ,e,,idatrarft{Jolv,iurCi p to an ( �. C'ttits1 letfrul!_1e'IJiall�y, C'arnir'ut i/oil aL'11r11y tnel(ltlr„ s g1'Uf(al,/''lif/a( :' ila.s111rl,t)1),st oaa llt'11fi',Y )u)d)lfl)1?K_ /1111 'pa liil)lt't1 to, ;Jew i!J1' gr;hrlrfJ g, r At Ill talon. l/1't111.4fawn ittV 11Iazio11 fl{)1C li or imp o3'e1i hum' and at,'Le'S,5 roach, i1L7;rW,. /1s,t1 tr 1s/0Litj711rfJg 011111 JIr(lli'l1f.11t, .iir(I fiOdi('11fgil /aon-0W f111121tUs f t11L41!ilLllf)il d0L'4 1/111 roll a''dr' IalIlia)d' II I Jltr'liLIJIL :° 11.1 1Ffi1)111O111 arig nil / 0/ (2111/ 1/1c1d , 1(1(11012/11' ceep lt.11V. 1)1 I$F1, /f7Cti' pa11'p)i),4 ai Ili( 14,, A'S, i% he 111ftt111etni11E_ e e'1111rs r01 i aaa1,;.1(/3)31 /t1)' p)) ojr F,s ,Sl)L II us rood I e_elirj acing, and is /2c'I'e OPT 11')1l /2C /',s (than' One LJLte0/atldinrinalg)'(I0fl(11J'1b111-f ieI Improvement., A.» tipJ,coao'L;s 1x10,'(t„rf)l/Jla(slows It'!!UUii5, 1�`1TL'1?'LII 10031 01,0 at,f 0 )t 11'&ttlu beet. 9,'ti11/11131/1 iltti1111k IL% " t,111f17Jt' rlti)11Iti1111ii4e ',r 1,)1'/1a1)Iu42,s Of f1Fh/11p1J11trf 4x'1)114 can _he f;aan( rr1 Poll' 1 h (1/ 11W fai'111J11> Storfloi'1Ftet' (I?sdrtu ,,,s 110lrr all c'triisrr? t'l,rrn x11 lit )Is'requlr'k'aI,E e s/ opt or (ltsa'rt)11rt(rs !Hill 1 � 51l1t 11111/' c/Asllir.htIffa'L' rJ/ 101' them 0,,re or"re of 1010! Auld +'i1 slur/ it l}It"li are 11x1 prir1 11 f a (arm r crff111r wi prlf)l1 of'1.11'1'!'lrlptnent w sale A 1a7gL'J common ()/1111 0j d1L'i'0'1(a/JIilt'ill r)7 $ak' " Is a Li11111i 114) S' al ?t1 where 'ii tlf/12(c_ iL'/'Ula1Vand £1(:(t11iel llJ/Js'11'11! tit!» ;41)1/MKS 11114 /U? faking p/IIL'c' 01 its/jerenI If11)t s'Ca1? Lf,j '1'1141 At /IS'1f71/k.'.`. uttelr WA t t()r111li'fifor; YYir /)(.`/'11111 is 21ts,'tll/i'YI to 1't)'.'or s:tost oo i or in r,511Ji,) d1Sd Jitirges r'{)iAp1r'Cd outirdy Cif' ,itf11 UzWall'I /x'0111 1'Iilistr9lt'f1I)t� 113'/1'11IC's 11aca1 rite' t o t1iiJ-t el fry' Stalt' i L If/1ltiurr f3) t)htaiir IAf/rralflt 7811 lflt'/lfip',s , 1d)1(1)ii 11$L r 01;dlifr,£;L;1 11'1117 areas that are dedicated to prtlr/(Fr.'lr)t; treat IJU?') Blurt 'raft, 5)1('li ,iF S(J!/}, , /111{ WA/ E11Yf1w1. /0l ne f)1 Li (1)11110 ('0lf,itefit tan) Sib,' 1/1,'Si' at ea,' it1Jt' Lw 1(f'ttled tit Illi constr71r'tionAke: in of hr)IIJL' tinter location 7111,' penult (!rl'1';, fret authorize 11'c d1.sr'I1t4,'QO isf'N$f'U! sverlc') prt.we,s4 n'ill:'a'jl'(f))r 1)f)1'a'ris;`tt)'r,is Tills pct Alit 11ri.S' crlsu rdit cr.skitll)ti',11i'r F/lat'1ldI! &'r IA451)tllllt'll ttstir t1Lc11cwed asphalt plant' till(1 ELM ' -WC' 111Ctutt5 1'O.Weld of LI T '1 x111' a+JNS'11'N.r (1O/I >(tt' PART .1 Pc -41113U .P,age-. �2 { Permit *Ha: ,` lk-X3:3€ 01)0 .�• •�••'�ty� � rt/ r. ♦ •�c } f �. t1 � r .3li • C+[ �• . j j • • r! •fir l• ♦• .�+K� • • • v�F•j • i f pi� w n f�. ! �, tr R4 �' . I . `1 �.�i4�4 �,. f •I>a4 GE ., s►:l� i, : l rf TEI) •.i"l.-i• f i! ••Oc ��:JTR C IO s'� CTS et i . fri l,t,) • •.Prti .' *.cc.! ' :.: nnc ':rivitlVjflf PthittsIJO, ,a ' disel /a; gait 1 tt10 : oi1tTtf i'O!1t • emisthietteitt eteivitier ny, i'tfie: o i • OJfi`�t` `;ye" f t= '-I ps :l� -F-' ` f :f• r ? • r 7f :f. • t , cc• • i : . , ' v; ' '~ y -�` t •� , I,• .• '�� !�•� r� �-iff��.•:r� �.'•c �', �� xs�-��1•�r<sr:� .�i.�r��•.�_�,:;.;��r:��t'7�:. �`:�:� ��-)18)Y'.1;D:3(e)-arui 140.10) ' t~,f,'ld`•'iitf.:. - .7 ipsiy M k 'fis'//.f i�• ' caw/ r•r. N•• •M.►. _ .+"•• w.-�•• • .5tt;rs,twsiier: .Axide firor;t. the coifrc '5 1f• iti ire . 't 1 r�r �r�� I I . abr ii?; i/u�:ss. p t& dot's -not. •0tit;.cr, N y! 1 fi}{j 9 .. J fy`c • f�{ t J f f j t y• / *1f t`t rr '•`�+ with • s? e i ) r f p) Mho, 1/! i ...stort1141'ttttfl` ea i<<tsffi�T R'c$'i fn *,n eothriniet '�1 11 tT,•1/s l �isile vid ith-xfrlr /itvif L'r f o t ()(Fn��, !17 ex II I' .' ,. .,• s• ♦ .. jw n ^.• i + • .. ...• -. t .� • - ? • • ••� ••' �� •r Y r�.ff 'T .' )r .•. , i w + mn iftmo i it u�• t I'd s s, • rsr tiois .cw it vto i. � cifl �:' �.1�1t!. • Oilier t 'PL'.� (If 171.4 ri.4? r ra?/• ar/ i• ll icr t 20#: 1` isio l { f�{ r u j. rr Jl It lt! r �. f f , . stow, rater t►,tehd g, f3 . '!`ll�r :: l:3'trith l�j'thyla s fl1.`r.Y';I::m .r7 "•l` l tTstons y_' •1 +� tr2 1 5 C�- 100240.I,; $ctet u r *6 .. fir'ef etit # r;�� it u Lori! not m•ye .jc / ii��• t1: ftpermit,. ' M •••� - 3 I 1••lr c i �• i• ' Y• �. � . a � i •'• f. f r1f il•'• � 'ii � ' ' ' : . y. � � •. ..• water: - •m c• par>7rrt•04 tines liar GoY•r.•t atl �-•� r>.�G. lrtt,�;l, caj' ray 4_•LS;.• Wa a r• Ui•c:�tt1, 4Jf.:d. % tiWr.�..'II tli ' 1nzcWurtirwiactivit r.z:strtor,ritePs.scrli rlilrt itrartit iniiti:dvr to ikkf t/surge tb/v :grrtrnd;r °rfer to-1-,:u1t.7rr ..slratul ,• cau:siniO ft11. G� Lf�l,�4r�`i�l_ ' T }1,'G'ti inet ti Pernik (pa' it••frrimmber • COG 4;-070000) it.1gt. t1trt'ff O/,t rt ft wi i An •appl1St .for rh/A' pe riftif c irri be oil -tasked froth tire. flit'i io ti at tIr : nr/cirg l "stz: � rk- •/"fit?`t :L-. :,'4fC) 0/710-et'•tl'#lt o at.•the wei & fts:' br i.'1?'tlrc= CO PE cE - MVO ER ..7T M GENERA PERMIT - ad& ;hi, tgcii :'t's! 3trl' if. (fvilitep' of fpvit'iiIal'•' . f J ctot'flt i E't`1iF:1' t`lisr /wrgt`. ' A•t' :lilted vuhI ttlsrvtr` nitin r till S'in'e '•irr.txy• iiuftfat tzotfr,. fl to 'YfiveV•Ik gt'-xliTlafil`f`1IFCJ igth Orti t'.Ski!e 4:(C i 'et/).• ThisitufitirS storm wake •d w/srrr'`gc 4' associated c ated whir industrial wT hrit 'lreirn UP&'tR'• ha • aro dotlicat 'd ttt'I j'#rotr' l# > i lg ouptireir trtaktiatis.r,- : stte/i a 4• soil,', •smut cod LiraivL'f;•• f tr,r x :' tit a•: '/ngle cot tr triict tw;•', i44:fit.:andstioli 'a;ed a shahs pliuns and -tied/ailed t:' tlncrelG'.p/ nt.c.. - . penult dilept ttftt p f"e°'Gi i ?i` or'...wipi s -the the alitiority.i:eff.iliner torsi!, State }'.irfrt*i'ol-iven ':i .t fj tiff • restrict tir• Shiro( elLicluw es .i . toet watirri. lei:A(0M efrafin i, 'sfeills•or i' t/wi''•n{'a ilex '•• ttsntw within theft' in"rs."fs,,`.ilntl: e.ittrflt trvi tiiita at ir'un.d: • fitc•pertO reive tre vtibmittat...0.1 ealitpl tG(/'ttfifi ieitt dhl fLirtll-a nd•ciai'lfflnf ii. tlta� � It Snit' � is 'f.`�`�1' �l •� I` !hf!/t • • � r - t� '•� � `• M Y•��,f.�••�r�' 1 �•t its > tl l�.te,: ,.c the' t t�`e i> •-r.O; . u I:k ' r. •Q:;ulifWnp•L, t�� 1 �- ^Li rrrt: •'Urparr receipt t •t ii • ' egli it al Ir/trrr-1rtclti rrr: fire DIVIO:013 may at/air or A:a/kncr co %'Grlt ` +e• trtiler iftut- gL=troifi /Swift • •'' 7— :APPLICATION AND. . CERTIFICATION:: Al•••feat! ..ten- i =1 r -/r' r to the `i` ltlutut;wi-tfte1'#i 3/ c -r t: � r�it;r� rt fly:`tti{ ; ;�: 'lt - Voter .operator 4t1�.:t fi f:.=1lt l�t�r -cm original• teonrplctetl app!i 'filkin which •ii:tiltttei {1fe•xittiwd C'Qtt'ttf iccltl#flt i/tttt the ►' f �� t,if� •_ t'(IPIJ)IPle!. Original' S'JgI txi!IflP iJt ''Y' ripiitDi3 ,for flit Oppf r trtF n i', be.considered .S` ` 1J t } 7 'j k` q/ t' 1#- t llt'f � tl - t� f �L. �.• li•, il.s f x f'�� s`•`� i � l� I.trr 4'tiT � • t'i. � 1''• �.Ir ('ftc 1tw Yiffir f st r;ti'1-i3t� 'f, �'i` ii`: c uliif6itl, .t toed'. Pr s.tf'f. r • (isev be owi); tea o1'ai1• gppfl''`lttt{)yjtt'Jss'.: f!' 3t'• • • lift/lf ti•'.'��. . - • • Poi. !hit poppi;J ttc j)l i/t3• s pot t i . the s:oretritort r fune. ru 1.00 I.fcix .i r p :,to«thiy. Cifillcontrol •over the prbjdet This • can ha the •risv ter. ilf f •ckv do ; .'.11we ;gtftteml confirm tor frr:t 1w agent otte of iheNtp nt-( e; rr'.�f xrsrff. • . de i! M Staiitil r .[ I, S •.i:!'�./� /sin .'• r if or I• ♦ i•• / nsti y r . ♦I � / •L,'ct j(yt�.�if3r. j` t "paw* ` 1! , t. ;pay t. t * J j3"t �1"J[Y t L `r nri C [ ►? r . .:.:�' �� r�` � • � r t � �`• f-� •/r��I� ;!S�1'��{�Y��f. �'�. S'�!f i.'[.'1 Z ?f ��J ��T'4; �� 4��S`i f�'�i �.`i •• f'.1 �l f - .1 if �I.lr 1if • w �?• l ,r • ec a� eit t or r' tine! .tit -'.• •••reF'tri ! .' t l kv: mitt! v betf'1'fi�?.t f � '1�'1'�t as •r3'i i'i'.� -011.414 : ,:11 fi�'�:��" :OD* Pt fu?1 it n?gilititOf'>'•li,t . ibi .rrpptl cat taint f i t.'e'E'.Y 'Lk f'l.T c " �lr, 11' {I' c , r!., t ' `il' .; r. :For •�• t ►� �.. t .af• '. F trt'i . G, � t .fit is {1 tf: � sTti i'f't tt c'otl. ,'ietwv Wilk its' cll3 rt`ftl i'atgranr, .tike 1 ivJ,"k,n•!Fill t`anifl:` e 1.., tiSV t fl°''t ' 4• ' • tftlmtrwy i'?f lie p#'nail' ti pI kat it •f't? f #titft�f�ient�" �'.;�'.,,r tJ�fttl {it i`fde flow. of Part • r !ll di.1t1 tit!lir`f - j&etlttn f �' Ir!' 1/!t l�4` 'if".�t ropr`i �ilc, . thetc a t's'tt/��:' %Wit. on ;•1•: lft 1 tr. i'tr:�3r �:'t � :tfl�a� r iii ff �, fat ili' tt'll tic •Cc?i''t!/si! I IOU/iz!' i/ft<'c. gW2t'.i'OI' 7 `t'm t,. PAD r n lriai,11; - P rt , 4te taut. No f't.1a-₹)'Om) (11 {}1 ,A1x11'J L UC AL PROGRAMS I'rt, ,lW,411waltJ di if 110040 fai6kJ{"₹fJttftisrr1/41I'Jar"1fo17 ft e, one joInv fli,','t'tjj4ltrr'I)('d y1J'i-o wte,), the permit $111'jJJt/&tc'(1JJJ1rliillt Milt 11JLfJ"i(Jr'f11L' approved alataal{j1'(JP,E,' 1o( al t'r'1 i'l1J I LJJtel 3 'ej!lJh.'FJ/ t Otift' rl i)FQp47771 lf1₹uriJt3 nig 1,u('01 jaiO;117111/ requ r Mint' j=i 4 QJ1{Jhft lag,ILocal.farigr:rnt is cJ lilillttelpf.te iforrrt}s'a lVi /)f (. 1'c(Jlf 10 .ittrrrJl4i°1tJt'r rtf 4t'1117Jr cS tr-mac'saire'tl ►s ttJJ ;mall tool, a1c IkIJn (nL t13'tta that has' htrd'n"(n1'lt::slit rl/)pf J.7:'t'd !t3' t/te' 1)ivrti'Jn, The tti'rjJraF%'nat'rn4 lr_J' ,)d'+tItjv111ry Load alrrlJ,grIJ1tls are outlined fa Part ti1,1i1?i tj fttt' cokii iliJ iit,sr.'/Jrar;tart f'c'sJt11t EsprtlJlr R.'g3rit4ttr,J4' (obto vee €etc' I fit°lhruti'l 'Wahl; ui tom' Prt7g ' i1!s fur Srrrrll! Com, 3 I! -. fjiJTtiL tIiut11 trtralJr1Ci'"), :411+'rt jlr li.grotnrt ;Mot unpf1Y r' JY,"ti rrtreriwnt4 10a;i'CJft't'J <F IA/1 tl tf[iJ fJ y' 371,71 an, 01 ierzt. 1 ,, €Itriftr1'C"l/i/EP.'d hJi 1nt4 flt'J'JJ1il, ,tJJlrt0Jtf11 Tennr'rrytinJi 4 Uut;/fi'i17i; t,ffiriilI i.gJinnirkri a!rt IL'!JlUJrttifrlli 111'miller the Iiiviciarat (JI the municipally Upon tt'trllilf 1TI(≥1 cr/'l)n'lslar)J approval l tx/s: (.11ttrhtlt'iif;; Local Program, any small a ulrstr'Ilr•Jlf,ur LI ti Jtt rt'f!i31 ed 1u 1nraFJa ,x'1'71)31 COld),age lunirle.'rSeoli:Jrr 61 J12,410 ill the t'L)PSr={,'gi11t)0J;+1JS t7C'CI? 1110? -611- ;hall suis1it, rrll 1 .Jplrl1C1111011 /(l1 inrJ' Ill13Wtjf'd /J1' 1Jte L�1 ill elrfl3, ;t'JtIJ II 13,'7 1111!'i1Jlr1JJ Ihcl111W a 31CrJ"iillt'aiel 4ItIr1.IJ CitJiJif Plait 1.' tirldPr is r,rlar111r'tz' us retiufl*cd hb' Part 1.4 3 of iil{rper mg, within 3() cedesfl DivThio J reeler"lr; ufJrt+r, Dirrslun Jar1Jr us id Ufa Cirltluc /si i , sic 01 P3o,gi i,tr ~fief c'lptry u•r!!r r/JJ514•Vi'1'i,l Jri'tr3ttt irf₹ Jinn, 311 2012_ Ake rrlrum :palIii. f'slrlrt;; 111(,unlilfl,'r I avision s JJlrroval 1r/ thL'u' prtr`,rant Jnu,3t i, itpp/s., 1f} ,lfct!'s Ii 31. _1)32 Vie As lira!' will determine 1/ flu' ograin/1/'iwaiy cone n e im (1 tipini? ied QJJIJlff}'Nrg J.t.kerl Pi twain_ 1'111 11::0 1,3 -4/x'1) 6'11,'i'13I710AS OF PLR,1 /Pl' fJve unfit', tl UtfiI]J111) / ut jt I'3 t4 Via. tr�K. 7 t1X,Slufill Construction tiun Sile Oniy for;tall LirlIc1rirt'1latlrxIk 1111 iIi'j1€AAR lt..11 alavll rmer,i £''D4'r'a 'd Wider' a i„?44-11 ylp;rr 1,0t.`al Ptomain Is -4V r�it't_JJIYIr )71,ra€Erse;'/, crni ' c4'rllaPtpeimit 1 etpi/1 L' neat s O/ till, li, LJriltiwiJ tetradY. The Awry program 1lufsl {?in e IieiJ trll tra(JlI;' ilei ,RX₹O1t'rl h3' the I%E;'Jctrui t'tJ t}1i11Jift ,.itGJi1r �l?Irlltt %j]f1111dt'Y 1111'1 o ir;1JJt' Nile Sll Iot'C1j 3)10,4T7am and i'ca ' J'( quit f' JJ t;trtri' l;t/ fL't A, IIt I't'b:'i, XJnipJ4' {Ifl₹'w fa I,ir'₹1!;r'lrrli it; ptot-' th1L:5 no' rJc't_'4,it1r 1() 1111;O/1t 111O11t is /1 ₹Vials/;r11:; JJl ₹J,1;l LlJ1 and shut .r.1 Slate, 1)₹'111Jat 1i' Wit Wiggled The !ucc./ 311311)0 iflfllO V r1 r'C'i/Jun.41ret1Jw for 17(7137tein r flflr1"ftICil'V and/or mifr₹erA iJ₹ref f)1i,' Wt.' • uVt'rL'tj In, 1t OuiiIrIY'iio Lot al Pi `J, !'lam, . L' n l 1 iinl �' _J I }1i1)7, the 0011Iajgli!J S i d Q₹u(1[1'''114 lot a! Ps0g1 Win }1'1111:1; !Italian' We far (col 10 1, f)arrgrll )0 atr l L faAt'n'fhf£1 u n updo'Cl11,31 111111101ic'ifxl1;1/41 With ()JJtrilil'1,';' Loot ai Iron rt iiti, IrltIlarhiJX''iJ1l1CJLI Injuiniut iiia IT urtriltr€ild' WI the I))l'(Ylr)Jr iY 11 !ltille at If11�' in erit ttr(lr-i' 111A ,tor 11P Lpfo e(}I(0f1J! ril0a wilts I/id 1)14'1 § If)11 i .Terv+rS 11.44 light tart !'insure tam' {'ilrf i il'lielltJJJ lliri01{'r LIP (ifu'a'tlltJJ° Within 11w 111r13 cliff ;rtes' fYj a t faruleil !leg 141(41/ Pi t'i i fun 11A eral Under air; permit 10 ,1f=jY1v fu! sled 01r/tan rill'1'? tfg!' tinder the /11/1 ra"17/777 tine.;,, tlih',1)t'iwiit_ Permit coverage, 11 Cl c'r)1lSr '₹i1'llrarr 3rtt+ Jv wiilllil lltt' line l ifl oli(JJJ £f,1 Cl QUO/ill Jfit; Iowa Program, the trr4'13E; or apvratfar of the. eattY:l'rretion,W1('rIl is authorized to cl13cJlti0ern.nlfl 'niter cJ1,411f'tiled s₹'7th small cfmtl,31r iit.11)tl 111 In ddr tl7f;ad'l' 1111; �'yene/dal tat?mit ntilthouul the ;fi1T1t1JJtilf trt al) ii iplll'otIcin 10 the 1)1313 Q'1 t/1F' j)t'rnurtr_rc' (i1 iCi tl rtut r•1rhJrrire.1 ,.sir Mat 1ti anon 110Vic'c' 0r ar C an rrttaltut) fee? fel IJ1,T ,L)r37','itill .PART: 11 • : igtitit rutgc 34 • 11.'4014: Na, t, C)a o3c' #ii Co v/.. J r'f );v5 Of.'' PhRMIT (twit/ Permit '.rittlitt 17w ftr:t'IUittce coverall -iv a tt lifitinLocal.Prnm. t t- twist comply efu t rcrquttrc nuu;ts or that tl • Quaff/i'im r . ocal. ?tOgt'Ciltt. addition,. the fallo f n j piriuhl section t`•• fib/i? • tit for y. i.. . ••l A ;4 1. IBC! 1,44: uMort:aro it ` L4'cfu" i j t. t /.di cis o f. o- y )tr :eraw? finder tte :.13):Omit I. :z; 1 oitt `a, t ittfi.(kit{t ng:Mat midi tsi.% r,� li'ti is r�. fr til ' �i rttl` 'rrl rrit,' . 1. • .- •ztti-itika 2..rU,:: .841P- TJzp1Femur' rfrxm;:mttiiiihifior i •i��. =:fii rrf; :- , rr�' : i t�', :Y . .ritittvx'.atkit t,x:i.t,1n.a • eplattliC rr. ��. •pi,'n n1i, esllf r flJiiirStxnfti' i'E'kilf. 1.le) I iE:`rises -of ittry3)tfr'JlI Pateefslt` it .to ' ,' r s under-a'Total - U:6 S iin D ii5 Laud : TtSIDLI. ash Additkirkif •ti=f SS. xe$ s & #cii• Pc rt /IA 1 II/3a 11: [L t era!' ILA; :1 : ;�A ��► its �E � ;�f l � r r; fit .�;: ft .a: at? 1€ntke •ff;t jitit:l ifi tc Crl)p lea be I the i t.%'W•tif r;rrncourplialiee wait/i• Pi'm ( € rClif€rwrr lrib; and . i•wv/ i / r•.i•oillita OO twoelp • ,i% j;.ist ei !(131 a4tdi �� F'.ij• � - • 1. : ...Stotts' i��°ti �i� �f �rt f�Y �ifia' !` lrft�. ..6 Milu - n --.rrr.w•..nw.\u.�ur.�wu�,yL�►•.wwr..uuw......wv - rl xi �r •1i l�rfrs:.sr r. r�s ,rf t /'t AiMtni fi0i.. -.c41rfr rich r• :tttr/rsir , *rti! Ptl_ .lan '„ct yoJ)) shay trfltieltsetttcr- ,'fir oiicttjr,`t'llitir.00vered 17)!t/IFSpftrmtit. .4.certifk'csiTat:'lima the .57W' 'fP is .`ti97#fflili • lr ►tit ill 's: with flzth •. rttait rippl L diifsui_ 17w S Ir tIP ,'ffr:7if tdc'nt ▪ q poi titlrtni t.incifultrig ►it'idifft#:lrt l if'f JJ 'fi tll ay rcaxorullgt i j;t' "exjssctt i to ajfife.1 i 1w -qu , ty q ,4'f i rmktikteit.-it iSt.the `�r''s: f s'SoCtalf r C f with toit1ctrtlz th cres 'Sti t= "'t t.,t�►tfr �1frd�i�`�`. 11 �r �'lrfr"ri��r ,. #1.11 pion }=Math C/€wcPil;t. the Pot •3 ktttu'e gerrf .Prc!cft 'ex• 1M!P. which. i 'fll -he•:tced to r'Y'ti ice ffr ! J3 JIsttUt/ttc• sri stOrfnc'Wtt dixvitor s' frori-1 tlit i onstruxr1Sr Nile,. ( '#d? Ihut rcn;u nrat l"0F;tr'(o S..Sikhr a$ '�'+C�l fi� that are ti. d u' , empuntfv co trucd.w; B-: SIN in ijt = SWWtklf'':).....Fatl, ltt:: mew Et ; hrittefrl-pravistu'LV ff thcsr. WAIF as. a �:r� t i irif7 o iti -•pct'ffiii. 71w `4P. /wid .liwitfide � lir �•ti�Ert;M h ells • 1. . t' 1/v. D 'y:! irlot iun •• .. • -3lle ME''p-* • . • - � ; • 3tcfi'tsfsv`.ai ;' `.-l-ftt.€tauclgtcrtf. Controls. ;. f..r�rt altit`�rs .StOt"flrsi'tfiuut' Alimaga`IJi:zn( !lisped. (ii AJU :i'fCJintenoflct'• • rce:e NM l l `- Enid.. C .t:1'ifit'' prrrnlL. * u: Curti z tiel cikd d, si:r tk;iz pl' S YMP.•reiptferfent ) flw , )tt=,ytnrr c ., tltdatt 'e ilettattett ttvitf labk rf # pr ;r'immgg.a$1P M!' 'VA? dce iaicciit i:' :ift ltfr'l :f a: = pprEnt.hv .4 if the pwt:tfff xr j .ilir• citrlrr -.and i ti f ab1 - on Ow- a , t t :� s ;�,i ;t. f: ;� ,: �,•= f ..r �, =.t: • {" l � : t t{ t� : � .Eb f . � t � t�'t 3 ] . �. f • -, • tip ,a #. , t'3•' ► cK 3 , }: s : • . t l ' J.ItM.•.M♦I.t •/•%• •\.N/.r.1,\. •... I.��,. �▪ .N�I w,I•-/ .I1�.�' ....: •..,' I..�1 . 1•.1.' • & ilt'f& L?f;cuetigi f •fiave fcv1'U. nuqdZc to ma :S# it ip.nvoirrentuns , • -sei •Seie jjJ of An" mat if ithiehis a is C'1nf n. *St. penus tl Ott r '. " #uzxihililiex Pegalt'dfitiliti ce C/irIJlg "'..: ' PAP -1 €1 Ni73111 ^ P it}II: tiHt? C'41€4"(1 0 ifid 'iit M10,6 I \L c:O\DITIONS 421, PLR All f{(7111.) .' is tcrSW3111 f�fllJi t11C11T;L'CCJIL4t111C11u11f31'(1+se'{,f6s(Iiilrt'r%1)'NIilwflipI',5111aftt'i(int,11iin.fio iifi that at ti mthtt, {flfllflJ(3ft plan Eif(IL'i'clrll)flTe'.11t, or IlluItipIt is ellpa is Ilriffk, ( tlll,Vf!'flt'11un 11`lllii,, fill , I dlrldgig 13 VII /WU, Tr+dl/IJJtpri ,si.nirr°e•4 tlliil tliJ.' 13JjCt5 t1/ il. f1'; used calf Irt' 1 vitlily k f'd.?1isL f 'rrl £ti StrL'lt e£.ir'S, ,4 LIRI'l1f f1{E L' Crlf ki ,i)gniii ' Ji)tl}' 41!i-Lffitrl/TL' 11W &J 411 dll,°JiS'Irrf)(l]{'tr! p act..14 I/1) t-ifigll Thr (f,Yi; sq t! outlSlr_'1 Sic AfP Vi tit lisp 't)iul Ion Huai 1 hct d 3 s.f<Jl7s`ijsltflt-fl)Lt1N(ulttt.'tf f{Tr:tji Lon VII 314'!iOfl (KO ti k'\ 111G1! G'1s.f'tts1!)11i,";1r'Fr-101 at e pm, 01 tl r,'(11r1Irt1J!' plan tilde 'E'lrrl)it1 'nt t Lei. Iuit 0 lf' aJs,! O ?)?lull red ,e,[11 -till the',el Milled ar#')! )1' c1[ tE.'J'tr/aJ!) L1 ,sl7lgio !MOW JJl£ilt (11I•' frL'1',rlh1(1.'e7 ,40) (.rilutrlt(lls the li£'ssr!!1 f/ittel ip /ejletflrl 'c )/E1f Malian to it'/kW atle Ial[l11 g C1411 (I ftlo! £ 0111# 111t'11JLk Ill 0 ,F1'f ilfltf:r, 1)tIL' LfJtilanniitq it "v104'14'0 At5"It(1f1 }3`W1 ilff (Si ifultIUli Cfffplic tiAJ ra a'It .Ef1ESs fLr g-, installation d. sail i ua 1 i,rtriliiL'13C1lice o'cYI111('ti neit1,5 ftll- uuini ,xl1.tnti d1 ri Stich (J1 ,slii /£';et and £'rY),tilit 131011( .2, CItitiI1/iL 4LR IJtftll:rltIlilula all (Al the t(lft)1-Jittllii)17.,t17s:'i'iffy /1? e0i if 41fc' �c,l> , :iI1' f '111' map, df'lltltt},, Q jll{iri , (14, i(fl�`,fi'fl 1 /11F'1 ). ilt{nig SfBs' Sp cifrl, t1L/,Yli't:. SrLc'l; fi4lE'!#,1Fif1!' potgin .1% litzsi ri('Ill'1tit'i &t;L;;n 11t1f1t`)7J[1ft(tF1 ( {'tlttis Est1 tfi 11w SOW Jii ttfltft {i ru FiwiY111r1, and £!5 Ili trxLs bi.: (11x14' 1141111,1' .5h11Jt112('41 1111'rt''lflla'ff 11101"lnatf1111. 1 ontuve',.,1 I1vL rat & r f 111fcr11l(rfiuf) ruIcl1£'L,i tra dil'L'Ltt that IJtrvti ;')rvbt f;lirrll4` Sfi11)ffl �411i=Ul arc 1'L'A1Oi'r'tf frr)/11 1,1w at five/gall r1ir141Ih.' flimitif WJt1l far a psi-itJr1 {sj'r(i 1E'tt;tt thrt.4 i'(+{113 l+t1fl Mt.' dale 18111 fht' f14,lllC/ci1G+!?< c1l£' I s fT:illi' slia111lfat'tI C l t^pis:l ,,4lay viti,l,yii,,P1 rJ1; Loyd •1"), tat 1f'ihe iii',sixaslrr1r111Sc: af`a _stream 111 4s OW/ h hI I1cr 61,4,4 wwll jfu11 r it I)S lite prit,senct' cJf 12 jrtrih11i11J1(•I, ta'l'c°oiC}/11x1 '!ll r,l'tr Total ,%Irawjmuiin 1.litl11 Load t7atIDI.) 111a}' h' ri'cj11fred ,4 7'AIUI- ,5 car ;,1fillll/li. of L111uisiillie Evading in flhEi li';rai'r'Irtidgrr1 the p 1/ilJlfnt ill ques511vn, 7)pr,. r)f hem iiliai #110 or1iu;St' I`f/t1.' Potential 10 a i 4,J11J`ii'tllil {lil)Le o/(bepitllri.ia1J1{rt'd'airw(1t£'11rilied Ifa-T/t1}�i,[dbit,S Utc'i('ripiirtik'{'iJ,ttl(`tiirl.' 7YLT1i'r'/'tk V flifil s hif,1( the per(t1Jrdcr' Llfot hat gt"5, and ,ilot'JlIiwrfo1 iii }a'1illt t'S msg.), Iated tl r11i b'{irl,Sti 114 ft0/3 (Advil -I. licire lige1) :,Mignitil (J p )1li31 Vil-spai Iii n1 ir,5'l('fr)rinf ,11/04 anon OIL trnelc=! the D11'1.into It'll! A.111119 1ht'per lt11l1ei' of the }'.1'ff.YL, and amend t11e/J£'riltiti!3'': u'r11/h. 0(1011 ff., 0(/ti ,t/lr i i/ i' PA/Pt wear /oho 'Nt,1i111`t'11kfll1, ti1)/fl)I))`ihJ(c', Or 4 1 1tifli';' llrlu tiw' }: Ij�j, is 1J(t7J�11{ UNf11ls.'11tr+nleit amt1Jli7Ii' (ht oit li'1/10f7figf e lOt cJl (titl)1)? ettnfna. 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(r, tr) 1'11,0, or hi: f111ffF?J/f /1,__11'15 1_:, Dr `11' I rr1Fri)g%fhl' 13d:'uiil0/r al 303,.693, 351 / 1'.1r1111t'1'I1 RIM all' lirlt' 31 2fltr Tab 14 Inspection Reports Ennis Substation Expansion Project Tab 15 Soil Report Ennis Substation Expansion Project USDA United States Department of Agriculture N RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies. State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Weld County, Colorado, Southern Part October 3. 2018 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers. ranchers, foresters, agronomists. urban planners. community officials, engineers, developers. builders. and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local. and wider area planning. onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies. State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey. the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color. national origin, age, disability. and where applicable. sex. marital status. familial status, parental status, religion, sexual orientation. genetic information. political beliefs, reprisal. or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA. Director. Office of Civil Rights, 1400 Independence Avenue. S.W., Washington. D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 C ntents Preface How Soil Surveys Are Made Soil Map Soil Map Legend _ Map Unit Legend Map Unit Descriptions _ Weld County, Colorado, Southern Part 70—Valent sand, 3 to 9 percent slopes References 2 5 8 9 10 11 11 13 13 15 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length. and shape of the slopes: the general pattern of drainage: the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently. soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources. and land uses (USDA, 2006;. Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orcerly pattern that is related to the geology, landforms, relief. climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping. this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map. however. soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil -vegetation -landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture. size and shape of soil aggregates, kind and amount of rock fragments. distribution of plant roots. reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy. the system of taxonomic classification used in the United States. is based mainly on the kinc and character of soil properties and the arrangement of horizons within the profile. After the soil 5 Custom Soil Resource Report scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research The objective of soil mapping is not to delineate pure map unit components, the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions Some components may be highly contrasting to the other components of the map unit The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas Soil scientists make many field observations in the process of producing a soil map The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist Observations are made to test and refine the soil -landscape model and predictions and to verify the classification of the soils at specific locations Once the soil -landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components Properties of each soil typically vary from one point to another across the landscape Observations for map unit components are aggregated to develop ranges of characteristics for the components The aggregated values are presented Direct measurements do not exist for every property presented for every map unit component Values for some properties are estimated from combinations of other properties While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests Soil scientists interpret the data from these analyses and tests as well as the field -observed characteristics and the soil properties to determine the expected behavior of the soils under different uses Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs Data are assembled from other sources, such as research information, production records, and field experience of specialists For example,'data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity Soil conditions are predictable over long periods of time, but they are not predictable from year to year For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and 6 * a The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map Also presented are various metadata about data used to produce the map, and a description of each soil map unit 8 40° 10' 55" N 0 104° 30' 32" W 104° 30' 32" W Custom Scil Resource Report Soil Map 541810 541810 541820 541830 541840 541850 541860 541870 541880 N A Map Scale: 1:631 if punted on A portrait (8.5" x 11") sheet. Meters 0 5 10 20 30 Feet 0 30 60 12) 180 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 9 104° 30 28' W 104° 30' 28" W 40° 10' 55" N 40° 10'51"N Custom Soil Resource Report MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons r - Soil Map Unit Lines Soil Map Unit Points O Special Point Features 1, 1-1 I.2. - Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot S Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Background obi Interstate Highways US Routes Major Roads Local Roads Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1 24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection. should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 17. Sep 10. 2018 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 17, 2015 Sep 22, 2016 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name 70 Valent sand. 3 to 9 percent slopes Totals for Area of Interest Acres in AOI Percent of AOI 2.0 100.0% Map Unit Descriptions 2.0 100.0% The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena. and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely. if ever. can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made u p of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant sail or soils in the map unit. and thus they do not affect use and management. These are called n oncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar. components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the u sefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. 11 Custom Soil Resource Report An identifying symbol precedes the map unit name in the map unit descriptions Each description includes general facts about the unit and gives important soil properties and qualities Soils that have profiles that are almost alike make up a soil series Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement Soils of one series can differin texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use On the basis of such differences, a soil series is divided into soil phases Most of the areas shown on the detailed soil maps are phases of soil series The name of a soil phase commonly indicates a feature that affects use or management For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series Some map units are made up of two or more major soils or miscellaneous areas These map units are complexes, associations, or undifferentiated groups A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas Alpha -Beta complex, 0 to 6 percent slopes, is an example An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar Alpha -Beta association, 0 to 2 percent slopes, is an example An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them Alpha and Beta soils, 0 to 2 percent slopes, is an example Some surveys include miscellaneous areas Such areas have little or no soil material and support little or no vegetation Rock outcrop is an example 12 Custom Soil Resource Report Weld County, Colorado, Southern Part 70 Valent sand, 3 to 9 percent slopes Map Unit Setting National map unit symbol: 2tczf Elevation: 3,050 to 5,150 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 48 to 55 degrees F Frost -free period: 130 to 180 days Farmland classification: Nct prime farmland Map Unit Composition Valent and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Valent Setting Landform: Hills, dunes Landform position (two-dimensional): Backslope, shoulder. footslope summit Landform position (three-dimensional): Side slope, head slope. nose slope. crest Down -slope shape: Linear, convex Across -slope shape: Linear, convex Parent material: Noncalcareous eolian sands Typical profile A - 0 to 5 inches: sand AC - 5 to 12 inches: sand Cl - 12 to 30 inches: sand C2 - 30 to 80 inches: sand Properties and qualities Slope: 3 to 9 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High to very high (6.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 1 percent Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Very low (about 2.4 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: Deep Sand (R067BY015CO), Rolling Sands (R072XY109KS) Hydric soil rating: No 13 Custom Soil Resource Report Minor Components Dailey Percent of map unit 10 percent Landform Interdunes Landform position (two-dimensional) Footslope, toeslope Landform position (three-dimensional) Base slope Down -slope shape Linear Across -slope shape Concave Ecological site Deep Sand (R067BY015CO), Sands (North) (PE 16-20) (R072XA021 KS) Hydnc soil rating No Vona Percent of map unit 5 percent Landform Hills Landform position (two-dimensional) Footslope, backslope, shoulder Landform position (three-dimensional) Side slope, head slope, nose slope, base slope Down -slope shape Linear Across -slope shape Linear Ecological site Sandy Plains (R067BY024CO), Sandy (North) Draft (April 2010) (PE 16-20) (R072XA022KS) Hydnc soil rating No Haxtun Percent of map unit 5 percent Landform Interdunes Landform position (two-dimensional) Footslope, toeslope Landform position (three-dimensional) Base slope Down -slope shape Linear Across -slope shape Concave Ecological site- Sandy Plains (R067BY024CO), Sandy Plains (R072XY111 KS) Hydnc soil rating No References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin. L.M., V. Carter. F.C. Golet. and E.T. LaRoe. 1979. Classification of wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife S ervice FWS/OBS-79/31. Federal Register. July 13. 1994. Changes in hydric soils of the United States. Federal Register. September 18. 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. N ational Research Council. 1995. Wetlands: Characteristics and boundaries. S oil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U .S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres 142 p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www. nres. usda. gov/wps/portal/nres/detail/national/soils/?cid=nres 142p2_053577 S oil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner. R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control. Wetlands Section. U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. U nited States Department of Agriculture. Natural Resources Conservation Service. N ational forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374 U nited States Department of Agriculture. Natural Resources Conservation Service. N ational range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/Ianduse/rangepasture/?cid=stelprdb 1043084 15 Custom Soil Resource Report U nited States Department of Agriculture. Natural Resources Conservation Service. N ational soil survey handbook. title 430 -VI. http://www.nres.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242 U nited States Department of Agriculture.. Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States. the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nres 142p2_053624 U nited States Department of Agriculture. Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/Internet/FSE_DOCUMENTS/nres142p2052290 pdf 16 RUSLE2 Related Attributes Weld County. Colorado. Southern Pad RUSLE2 Related Attributes This report summarizes those soil attributes used by the Revised Universal Soil Loss Equation Version 2 (RUSLE2) for the map units in the selected area. The report includes the map unit symbol, the component name, and the percent of the component in the map unit. Soil property data for each map unit component include the hydrologic soil group, erosion factors Kf for the surface horizon. erosion factor T. and the representative percentage of sand, silt, and clay in the mineral surface horizon. Missing surface data may indicate the presence of an organic surface layer. . Report RUSLE2 Related Attributes Soil properties and interpretations for erosion runoff calculations. The surface mineral horizon properties are displayed. Organic surface horizons are not displayed. RUSLE2 Related Attributes —Weld County, Colorado, Southern Part Map symbol and soil name Pct. of map unit length Slope (ft) Hydrologic group Kf T factor Representative value % Sand % Silt % Clay 70—Valent sand, 3 to 9 slopes percent Valent 80 151 A .02 5 95.5 1.5 3.0 Data Source Information Soil Survey Area: Weld County. Colorado. Southern Part Survey Area Data: Version 17. Sep 10. 2018 USDA Natural Resources Web Soil Survey a Conservation Service National Cooperative Soil Survey 10/3/2018 Page 1 of 1 Tab 16 Floodplain Map Ennis Substation Expansion Project I • f NU ES 10 uSERS -♦ -air . la Air * esl SO else rise. r • au•• ✓ +..leer•. 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C.• ne •.• •.!.•:.::.•••!•••... rlli IMP W SPOICIftw WWI* PAP, U..wurrml.••r.•� • Submit by Email Weld County Referral November 29, 2018 The Weld County Department of Planning Services has received the following item for review: Applicant: WJW Properties, LLC, c/o Public Service Case Number: 1MUSR18-80-439 Company of Colorado Please Reply By: December 27, 2018 Planner: Chris Gathman Project: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Location: Substation is located on a private access road located approximately 3.4 north of the intersection of County Road 20/County Road 59. Parcel Number: 121536000001-R0922501 Legal: S2/SW4NW4/S2SE4NW4/S2SW4NE4/S2S E4NE4/N2SE4NE4 EXC WEST 100 FEET OF SECTION 36, T3N, R64W of the 6th P.M., Weld County, The application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Please reply by the above listed date so that we may give full consideration to your recommendation. Any response not received before or on this date may be deemed to be a positive response to the Department of Planning Services. If you have any further questions regarding the application, please call the Planner associated with the request. Please note that new information may be added to applications under review during the review process. If you desire to examine or obtain this additional information, please call the Department of Planning Services. We have reviewed the request and find that it does / does not comply with our Comprehensive Plan because: We have reviewed the request and find no conflicts with our interests. See attached letter. Signature Date Agency Weld County Planning Dept. 1555 N 17th Ave, Greeley, CO. 80631 (970) 400-6100 (970) 304-6498 fax Submit by Email Weld County Referral November 29, 2018 The Weld County Department of Planning Services has received the following item for review: Applicant: WJW Properties, LLC, c/o Public Service Case Number: 1MUSR18-80-439 Company of Colorado Please Reply By: December 27, 2018 Planner: Chris Gathman Project: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Location: Substation is located on a private access road located approximately 3.4 north of the intersection of County Road 20/County Road 59. Parcel Number: 121536000001-R0922501 Legal: S2/SW4NW4/S2SE4NW4/S2SW4NE4/S2S E4NE4/N2SE4NE4 EXC WEST 100 FEET OF SECTION 36, T3N, R64W of the 6th P.M., Weld County, The application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Please reply by the above listed date so that we may give full consideration to your recommendation. Any response not received before or on this date may be deemed to be a positive response to the Department of Planning Services. If you have any further questions regarding the application, please call the Planner associated with the request. Please note that new information may be added to applications under review during the review process. If you desire to examine or obtain this additional information, please call the Department of Planning Services. We have reviewed the request and find that it does / does not comply with our Comprehensive Plan because: We have reviewed the request and find no conflicts with our interests. See attached letter. BPascoe 11/30/2018 Signature Date Agency Zoning Compliance Weld County Planning Dept. 1555 N 17th Ave, Greeley, CO. 80631 (970) 400-6100 (970) 304-6498 fax Submit by Email Weld County Referral November 29, 2018 The Weld County Department of Planning Services has received the following item for review: Applicant: WJW Properties, LLC, c/o Public Service Case Number: 1MUSR18-80-439 Company of Colorado Please Reply By: December 27, 2018 Planner: Chris Gathman Project: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Location: Substation is located on a private access road located approximately 3.4 north of the intersection of County Road 20/County Road 59. Parcel Number: 121536000001-R0922501 Legal: S2/SW4NW4/S2SE4NW4/S2SW4NE4/S2S E4NE4/N2SE4NE4 EXC WEST 100 FEET OF SECTION 36, T3N, R64W of the 6th P.M., Weld County, The application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Please reply by the above listed date so that we may give full consideration to your recommendation. Any response not received before or on this date may be deemed to be a positive response to the Department of Planning Services. If you have any further questions regarding the application, please call the Planner associated with the request. Please note that new information may be added to applications under review during the review process. If you desire to examine or obtain this additional information, please call the Department of Planning Services. We have reviewed the request and find that it does / does not comply with our Comprehensive Plan because: We have reviewed the request and find no conflicts with our interests. See attached letter. Capt Alan Caldwell 12/7/18 Signature Date Agency WCS0 Weld County Planning Dept. 1555 N 17th Ave, Greeley, CO. 80631 (970) 400-6100 (970) 304-6498 fax Submit by Email Weld County Referral November 29, 2018 The Weld County Department of Planning Services has received the following item for review: Applicant: WJW Properties, LLC, c/o Public Service Case Number: 1MUSR18-80-439 Company of Colorado Please Reply By: December 27, 2018 Planner: Chris Gathman Project: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Location: Substation is located on a private access road located approximately 3.4 north of the intersection of County Road 20/County Road 59. Parcel Number: 121536000001-R0922501 Legal: S2/SW4NW4/S2SE4NW4/S2SW4NE4/S2S E4NE4/N2SE4NE4 EXC WEST 100 FEET OF SECTION 36, T3N, R64W of the 6th P.M., Weld County, The application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Please reply by the above listed date so that we may give full consideration to your recommendation. Any response not received before or on this date may be deemed to be a positive response to the Department of Planning Services. If you have any further questions regarding the application, please call the Planner associated with the request. Please note that new information may be added to applications under review during the review process. If you desire to examine or obtain this additional information, please call the Department of Planning Services. We have reviewed the request and find that it does / does not comply with our Comprehensive Plan because: We have reviewed the request and find no conflicts with our interests. See attached letter. Tom Beach, Fire Chief 11/29/2018 Signature Date Agency Southeast Weld Fire District Weld County Planning Dept. 1555 N 17th Ave, Greeley, CO. 80631 (970) 400-6100 (970) 304-6498 fax Submit by Email Weld County Referral November 29, 2018 The Weld County Department of Planning Services has received the following item for review: Applicant: WJW Properties, LLC, c/o Public Service Case Number: 1MUSR18-80-439 Company of Colorado Please Reply By: December 27, 2018 Planner: Chris Gathman Project: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000-13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. Location: Substation is located on a private access road located approximately 3.4 north of the intersection of County Road 20/County Road 59. Parcel Number: 121536000001-R0922501 Legal: S2/SW4NW4/S2SE4NW4/S2SW4NE4/S2S E4NE4/N2SE4NE4 EXC WEST 100 FEET OF SECTION 36, T3N, R64W of the 6th P.M., Weld County, The application is submitted to you for review and recommendation. Any comments or recommendation you consider relevant to this request would be appreciated. Please reply by the above listed date so that we may give full consideration to your recommendation. Any response not received before or on this date may be deemed to be a positive response to the Department of Planning Services. If you have any further questions regarding the application, please call the Planner associated with the request. Please note that new information may be added to applications under review during the review process. If you desire to examine or obtain this additional information, please call the Department of Planning Services. We have reviewed the request and find that it does / does not comply with our Comprehensive Plan because: We have reviewed the request and find no conflicts with our interests. See attached letter. Mike Grooms 11/29/2018 Signature Date Agency Colorado Parks and Wildlife Weld County Planning Dept. 1555 N 17th Ave, Greeley, CO. 80631 (970) 400-6100 (970) 304-6498 fax MEMORANDUM TO: Chris Gathman, Planning Services FROM: Hayley Balzano, Public Works DATE: January 9, 2019 SUBJECT: 1MUSR18-80-439 Ennis Substation The Weld County Department of Public Works has reviewed this proposal. Staff comments made during this phase of the application process may not be all-inclusive, as other issues may arise during the remaining application process. COMMENTS GENERAL PROJECT INFORMATION/LOCATION Project description: A Minor Amendment to SUP -439 (115,000 Electric Transmission Line and 115,000- 13,000 Volt Electric Substation) to upgrade/expand the existing substation site in the A(Agricultural) Zone District. This project is north of CR 22 and is east of and adjacent to the section line for CR 59. Parcel number 121536000001. Access is from CR 59. ACCESS Weld County Public Works has reviewed the application materials related to access. The applicant is proposing to access Weld County Road 59 at the end of County maintenance approx. 1 mile north of County Road 20. The applicant will need to show on the USR map where site traffic accesses and egresses the maintained county road and show the right of way or private easements used to travel to and from the site. Per Chapter 12, Article 5, Section 12-5-30, an Access Permit is required for access to Weld County maintained roadways. We strongly encourage you to discuss your access with Public Works prior to laying out your site plan to ensure the approved accesses are compatible with your layout. Per Chapter 12, Article V, Section 12-5-30. F, when feasible, there shall be no net increase in the number of accesses to a public road. Minimum access spacing widths are shown in Weld County Code Appendix Table 12A-2. Please refer to Chapter 12 of the Weld County Code for more information regarding access. ROADS AND RIGHTS -OF -WAY County Road 59 is a paved road and is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as a(n) arterial road, which requires 140 feet of right-of-way. The applicant shall delineate and label on the site map or plat the future and existing right-of-way (along with the documents creating the existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be dedicated. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, the required setback is measured from the future right-of-way line. Be aware that physical roadways may not be centered in the right-of-way. This road is maintained by Weld County. The substation site is located on Section 36, Township 3 North, Range 63 West. The west boundary of Section 36 has potential section line right-of-way for County Road 59. Section line right-of-way does not exist in all sections in Weld County and should be verified before a decision to utilize it is made. Weld County commonly refers to these locations as "Non -Maintained Section Line Right -of -Way." The existence of a physical road does not imply public right-of-way and any road may be located on private property. All right-of-way should be verified and physical roads located in relationship to the public right-of-way to ensure trespassing does not occur. The applicant shall verify the existing right-of-way and the documents creating the right-of-way and this information shall be noted on the site plan or plat. The applicant shall delineate on the site map or plat the existing right-of-way and physical location of existing or proposed roads. If the right- of-way cannot be verified an adequate easement between property owners shall be provided. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, the required setback is measured from the future right-of-way line. Be aware the physical roadway(s) may not be centered in the right-of-way. This road is NOT maintained by Weld County. The south boundary of Section 36 has potential section line right-of-way for County Road 26. Section line right-of-way does not exist in all sections in Weld County and should be verified before a decision to utilize it is made. Weld County commonly refers to these locations as "Non -Maintained Section Line Right -of - Way." The existence of a physical road does not imply public right-of-way and any road may be located on private property. All right-of-way should be verified and physical roads located in relationship to the public right-of-way to ensure trespassing does not occur. The applicant shall verify the existing right-of-way and the documents creating the right-of-way and this information shall be noted on the site plan or plat. The applicant shall delineate on the site map or plat the existing right-of-way and physical location of existing or proposed roads. If the right-of-way cannot be verified an adequate easement between property owners shall be provided. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, the required setback is measured from the future right-of-way line. Be aware the physical roadway(s) may not be centered in the right-of-way. This right-of-way is NOT maintained by Weld County. The east boundary of Section 36 has potential section line right-of-way for County Road 61. Section line right-of-way does not exist in all sections in Weld County and should be verified before a decision to utilize it is made. Weld County commonly refers to these locations as "Non -Maintained Section Line Right -of - Way." The existence of a physical road does not imply public right-of-way and any road may be located on private property. All right-of-way should be verified and physical roads located in relationship to the public right-of-way to ensure trespassing does not occur. The applicant shall verify the existing right-of-way and the documents creating the right-of-way and this information shall be noted on the site plan or plat. The applicant shall delineate on the site map or plat the existing right-of-way and physical location of existing or proposed roads. If the right-of-way cannot be verified an adequate easement between property owners shall be provided. Pursuant to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, the required setback is measured from the future right-of-way line. Be aware the physical roadway(s) may not be centered in the right-of-way. This right-of-way is NOT maintained by Weld County. Per Chapter 12, Article 4, Section 12-4-30.B, a Weld County Right -of -Way Use Permit is required for any project that will be occupying, constructing or excavating facilities within, and/or encroaching upon, any County rights -of -way or easement. Right -of -Way Use Permit instructions and application can be found at https://www.weldgov com/departm entslpu blicworks/perm its/. Weld County will not replace overlapping easements located within existing right-of-way or pay to relocate existing utilities within the County right-of-way. TRAFFIC The latest ADT on CR 59 counted 1042 vpd with 58% trucks. The 85th percentile speed is 62 mph. The traffic information submitted with the application materials indicated that after construction there will be approximately one (1) passenger vehicle daily roundtrip. The majority of the trips will be made to and from Interstate 76 on County Road 59. TRACKING CONTROL POLICY The site uses a paved private road to access County Road 59. No further tracking control will be required. ROAD MAINTENANCE AGREEMENT Public Works is requiring Road Maintenance Agreement during construction. This agreement would include, but is not limited to, dust control and damage repair to specified haul routes. Improvements/Road Maintenance Agreement: An example agreement is available at: https://www.weldgov com/UserFiles/Servers/Server 6/File/Departments/Publie/020Works/DevelopmentR eviewlsprusr.pdf. It will detail the approved haul route(s), outline when off -site improvements will be triggered, and include a maintenance agreement for the haul routes. Possible mitigations included in the road maintenance agreement may include but are not limited to: dust control, specified haul routes, damage repairs, and future improvement triggers. DRAINAGE REQUIREMENTS This area IS within a Non -Urbanizing Drainage Area: Non -Urbanizing Drainage Areas typically require detention of runoff from the 1 -hour, 100 -year, storm falling on the developed site and release of the detained water at the historic runoff rate of the 1 -hour, 10 -year storm falling on the undeveloped site for NON - URBANIZING areas. Detention Pond summarized in a Drainage Report: The applicant has submitted a preliminary drainage report. A final drainage report and detention pond design completed by a Colorado Licensed Professional Engineer is required prior to recording the USR map. The drainage report must include a certification of compliance stamped and signed by the PE. A Certification of Compliance form can be found on the Public Works Development Review website. General drainage report checklist is available on the engineering website. More complete checklists are available upon request. Historic Flows: The applicants will be required to maintain the historic drainage flows and run-off amounts that exist from the property. GRADING PERMIT A Weld County Grading Permit will be required if disturbing more than 1 acre. Grading Permit applications are accepted after the planning process is complete (plan recorded). An Early Release Request Form may be entertained only after the applicant, Public Works and Planning Department have reviewed the referral and surrounding property owner comments. The Early Release Request may or may not be granted depending on referral comments and surrounding property owner concerns. Contact an Engineering representative from the Public Works for more information. A Construction Stormwater Permit is also required with the State for disturbing more than 1 acre. Contact: Colorado Department of Public Health and Environment, Water Quality Control Division, 303-692-3575. CONDITIONS OF APPROVAL A. During construction, a Road Maintenance Agreement is required at this location. Road maintenance includes, but is not limited to, dust control and damage repair to specified haul routes. (Department of Public Works) B. A Final Drainage Report and Certification of Compliance stamped and signed by a Professional Engineer registered in the State of Colorado is required. (Department of Public Works) C. The applicant shall submit a recorded copy of any agreement signed by all the owners of the property crossed by the access. The access shall be for ingress, egress, utilities and shall be referenced on the USR map by the Weld County Clerk and Recorder's Reception number. (Department of Public Works) D. The plan shall be amended to delineate the following: 1. The applicant shall verify and delineate on the map the unmaintained rights -of -way and private easements from the site to, and including the connection to County Road 59. Reference the documents creating the right-of-way or the reception numbers for private easements. The access road is not maintained by Weld County. (Department of Public Works) 2. From the southeast corner of Section 11, Township 02 North, Range 64 West, going south, County Road 59 is a paved road and is designated on the Weld County Functional Classification Map as a arterial road which requires 140 feet of right-of-way at full buildout. The applicant shall delineate and label on the site map or plat the future and existing right-of-way (along with the documents creating the existing right-of-way) and the physical location of the road. All setbacks shall be measured from the edge of right-of-way. This road is maintained by Weld County. (Department of Public Works) 3. From the southeast corner of Section 11, Township 02 North, Range 64 West, going north, County Road 59 Section Line is shown to have unmaintained section line right-of-way per the Weld County GIS right-of-way map. The applicant shall delineate the existing right-of-way on the site plan. Show and label the section line Right -of -Way as "CR 59 Section Line Right -Of -Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 4. County Road 26 Section Line may have unmaintained section line right-of-way. The applicant shall verify and delineate the existing right-of-way on the site plan. If the right-of-way exists, show and label the section line Right -of -Way as "CR 26 Section Line Right -Of -Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 5. County Road 61 Section Line may have unmaintained section line right-of-way. The applicant shall verify and delineate the existing right-of-way on the site plan. If the right-of-way exists, show and label the section line Right -of -Way as "CR 61 Section Line Right -Of -Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 6. Show and label the approved access locations, approved access width and the appropriate turning radii (60') on the site plan. The applicant must obtain an access permit in the approved location(s) prior to construction. (Department of Public Works) 7. Show and label a 30 -foot minimum access and utility easement to provide legal access to the parcel on the site plan. (Department of Public Works) 8. Show and label the accepted drainage features. Stormwater ponds should be labeled as "Stormwater Detention, No -Build or Storage Area" and shall include the calculated volume. (Department of Public Works) 9. Show and label the drainage flow arrows. (Department of Public Works) 10. Show and label the parking and traffic circulation flow arrows showing how the traffic moves around the property. (Department of Public Works) Prior to Construction: A. If more than one (1) acre is to be disturbed, a Weld County Grading Permit will be required. (Department of Public Works) DEVELOPMENT STANDARDS (NOTES ON THE SITE PLAN) 1. The property owner or operator shall be responsible for controlling noxious weeds on the site, pursuant to Chapter 15, Article I and II, of the Weld County Code. (Department of Public Works) 2. The access to the site shall be maintained to mitigate any impacts to the public road, including damages and/or off -site tracking. (Department of Public Works) 3. There shall be no parking or staging of vehicles on public roads. On -site parking shall be utilized. (Department of Public Works) 4. Any work that may occupy and or encroach upon any County rights -of -way or easement shall acquire an approved Right -of -Way Use Permit prior to commencement. (Department of Public Works) 5. Access will be along unmaintained County right-of-way and maintenance of the right-of-way will not be the responsibility of Weld County. (Department of Public Works) 6. The historical flow patterns and runoff amounts on the site will be maintained. (Department of Public Works) 7. Weld County is not responsible for the maintenance of onsite drainage related features. (Department of Public Works) R. 65 N[ 6u lV. 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[ 1[ L ti N N N ti /r r L t r _ c I I J f I I I LL 1 1.LtL J se- ,- 'pl. j .tp.f;l •-L: r II It R9 to al 1_I - n. r u R Y Y / 42 �nOPOsaD eouxoaav Ser R JO' COUNTY ROROV✓ 52.000 0se.s0D 30. COUNTY RD ROW I ON AC PG 331 $ B a OK 285. Pa 157 "' I I I I / • / / Hz / / / �am°'Pow / / / /COMBI/ / / / / / / / // / COLORADO COORDINATE SY5TEN, NAD83 NORTH ZONE NE FACTOR ae10'ZaDATUM ia4a00'=0.9955Rr50O 0.909726.104 le �1ammsw'��-Yr •e.+x i¢,amtr mr. a i . PRCFOPE1 ACRE PA�EL sem 8 LL 1.J4 . I a' / I PROPOSED 6.76 / ACRE PARCEL x e % r L ` / ry ' ` P I / / Easement Area Description: / / / Commencing at the Point of Beginning (POE) located where the southern property border / / intersects the Section Line (N: 1310288.24, L1: 3276792.45); Thence away from the Section T.ine South 89°56'175,88" East a distance of 309.00 feel; / Thence with the existing dirt road North 0"D3'54.12" East a durance of 237.94 feet; Thence with the existing dirt road North 29°02'49.48" East a distance 0)242,82 feet; PP ll Thence away from the existing dirt road North 52°07'46.66" West a distance of 149.79 feet; 8 Thence with the Section Line North 0°03'54.12" West a distance of 167.83 feet; Thence towards the section line South 89"56'05.88" West a distance of 309.711 feet; I Thence with the section line South V03.94.12" East a distance of 710.UU feet to the PUB; I I Said parcel contains 6.76 acres ssr swa .lie THIS DRAWING WAS PREPARED tlY HGW6R —.NIL PROPOSED minima yes. se °cra E I ) I P.O.R. N:1310288.24 ) E.32T8782A5 I I I I I ENGINEERS, INC. FORA SPECIFIC PROJECT, TAKING INTO CONSIDERATION THE SPECIFIC 050 UNIQUE REQUIREMENTS OF THE PROJECT. REUSE OF THIS DRAWING OR ANY INFORMATION CONTAINED IN THIS DRAWING FOR ANY PURPOSE IS PROHIBITED .WRITTEN PERMISSION FROM BOTH POWER AND POWER'S CLIENT IS GRANTED. OSGN 11114116 ^ %CEL ENERGY JOB NUMBER 155142 REV Q ORR 140 1111 EN IS SUBSTATION WARRIOR CKD EMT M„ TR yVV'_rVwe ENGINEERS SCALE: 1,60. FOR 24434 DWG ONLY DRAWING NUMBER E%HBT.1 PROPERTY DESCRIPTION REV REVISIONS DATE ORN DSON CKD APPD REFERENCE DRAWINGS • F [?NFt 'J+l 564D r r Policy of Title Insurance Issued by Transamerica Title Insurance Company SUBJECT TO THE SCHEDULE OF EXCLUSIONS FROM COVERAGE, THE EXCEPTIONS CON- TAINED IN SCHEDULE B AND THE PROVISIONS OF THE CONDITIONS AND STIPULATIONS HEREOF, TR4NSAMERICA TITLE INSURANCE COMPANY, a California corporation, herein called the Company, inures, as of Date of Policy shown in Schedule A, against loss or damage, not exceeding the amount of insurance staled in Schedule A, and costs, attorneys' fees and expenses which the Company may become obligated to pay hereunder, sustained or incurred by the insured by reason of: 1. Title to the estate or interest described in Schedule A being vested otherwise than as stated therein; 2. Any defect in or hen or encumbrance on such title; 3. Lack of a right of access to and from the land; or 4Unmarketahility of such title. In Witness Whereon, Transamerica Title Insurance Company has caused this policy to be signed and sealed by its duly authorized officers as of Date of Policy shown in Schedule A. Transamerica Title Insurance Company By By 51"14,t flOtJL x President Secretary V i • I r r STATE OF COLORADO R1CHARp R LAMM Gov[nrepn J RICHARD EaRNv9 C L ,J RUHERT L arrOWN 0GvuTY Con uI 1 kEP Dear Real Estate Purchaser: DIVISION OF INSURANCE DEPARTMENT OF REGIS LATORYAGCNCIE$ 106 STATE OFFICE BUJ!LDING i 2O1 E. COLFAX AVE DENVER COLORADO 8O2O3 May 1, 1977 Following this letter you will find a brief explanation of your title insurance commitment and policy. Title insurance companies are regulated by this Division, as are other types of insurance companies, This Division makes certain that com- panies issuing title insurance commitments and title insurance policies are financially sound, and that they operate in accordance with statutes and regulations. We also have a great interest in making certain that you, as the consumer, understand the purpose of title insurance and that you understand your rights under your insurance policy, In the event you are dissatisfied with responses given to your ques- tions or problems by your title insurance company, you are encouraged to send your questions concerning title insurance or any complaints that you may have against your title Insurer to this office. We are on hand to make certain that all your rights and remedies, both under your policy and under law, are available to you et all times. Sincerely, CHARD BARNES, C.L.U. Commissioner of Insurance JRe:hl Asa purchaser of a home or other real estate you may receive a 'Commitment for Tile Insurance -and a "Polley of Title Insurance" Both of these documents, like many others in connection with your purchaser are contracts creating legal rights which you should read carefully and which you may wish to have examined and explained by a lawyer or other adviser. While the following description of these documents cannot change the precise terms of these documents, it is hoped that this will help you to understand their purpose and effect and answer some of your gtiestions about them QUESTION: "WHAT IS TITLE INSURANCE?" ANSWER: Basically. it is a contract with the title insurance company in which the company agrees to defend and indemnify you against losses which you may suffer because of unreported defects in the title to your property as of the date of the contract It Es not casualty insurance and, therefore, does not protect you against acts of theft or damage to your home by fire, storm and the like Rssentially, the insurance insures that you have -title to the property subject only td certain exceptions and exclusions listed in the Policy of Title Insurance Title insurance recognizes the possibility of loss, but transfers the risk of lass from you as property owner to the company issuing the policy. For this reason title insurance companies are required to maintain reserves to cover losses if you are financing your purchase, your lender will ordinarily require that you obtain a separate Lender's Policy to insure that your properly will in fact serve as security for its loan QVE5flON: "WHAT DOES THE PREMIUM PAY FOR?" ANSWER: The one time, non -recurring premium pays for several things- i helps to pay for the cost of collecting, maintaining, searching and examining real estate records and certain other public, records which relate to your property so that the title insurance company can determine the insurability of your title For example, the title insurance company will determine whether the public records show that your seller really owns the property_ what mortgages or liens (a recorded legal claim) may exist. whether there are restrictive covenants on your CONTINUED ON REVERSE FORM NO, C-5040-1 FOR USE WITH GQl,ORA04 R.EGEUN AMERICAN LAND TITLE A95OCIATION OWNER'S POLECY-FORME-,1S7O 'AMENDED 10.17-7OI SCHEDULE A Amount•of Insurance $ 5, 000.00 Policy No. 8009134 Date of Policy September 11, 1981 Sheet 1 of —` 8:00A.M. 1. Name of Insured ; PUBLIC SERVICE COMPANY OF COLORADO. a Colorado corporation 2. The estate or interest in the land described herein and which is covered by this policy is; EASEMENT { 3. The estate or interest referred to herein is at Date of Policy vested in: PUBLIC SERVICE COMPANY OF COLORADO, a Colorado corporation • J FORM NO, C -G000-2 FOR USE WITH COLORADO REGION AMERICAN LAND TITLE AS ocIAYION LOAN POLICY 1470 (AMENDED .iD-17-74) FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY --FORM E-1970 (AMENDED 10.17-70) SCHEDULE A —Continued The land referred to in this policy is situated in the State of Colorado. County of Weld and is described as follows: Easements for the purpose of constructing, reconstructing, operat- ing and maintaining a 115 RV transmission line, a substation site, and an access road, over and across the following described property: In the Southwest One -quarter (SW4) of Section Thirty six (Sec. 36), Township Three North (T 3 N), Range Sixty-four West (R 64 W). Being a right-of-way for a substation, described by metes and bound as follows: Beginning at a point, which point bears South 67°06'29" East a distance of 206.21 feet from the west quarter corner of said Sec. 36; thence North 89°45'37" East a distance of 136.00 feet to a point; thence South 00°31'06" West a distance of 186.93 feet to a point; thence South 89°46'15" West a distance of 136.00 feet to a point; thence North 00°31'07" East a distance of 186.90 feet to the point of beginning. ALSO Being a right-of-way for a 115 KV Transmission line described by metes and bounds as follows Beginning at a point on the west boundary of said Sec. 36, which point bears South 00°33'46" West along said west boundary, A distance of 225.39 feet from the west quarter corner of said Sec, 36; thence continuing South 00°33'46" West a distance 75.00 feet to a point on the west boundary of said'Sec. 36; thence North 89°46'15" East a distance of 326.93 feet to a point; thence North 00°31'06" East a distance of 32.50 feet to the southeast corner of the said substation site; thence South 89°46'15" West along the south boundary of said substation a distance of 136.00 feet to the southwest corner of said substation; thence North 00°31'07" East along the west boundary of said substation a 3istance of 42,50 feet to a point; thence South 89°46'14" West a distance of 190.88 feet to the point of beginning. ALSO Being a right -of --way for an access road or variable width. The centerline being more particularly described as follows: Beginning at a point, which point bears South 24°13'47" East a dis- tance of 1916.90 feet from the west quarter corner of said Sec. 36, at which point said right-of-way is 36.67 feet on each side of said center- line: r FORM NO. C-8QbO-3C FOR USE WiTI# COLO1 AbO RE.QEQN AMERICAN LAND TITLE ASSOCIATIQN LQAN POLICY 1970 (AgymNDED.10-T7-71 ) FOR UWE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM E-1970 (AMENDED IO-17.70) S CHEDULE A--Cantinueti thence North 21°32'13" West a distance of 63.54 feet to a point at whicr point said right-of-way has tapered to 15.00 feet, 7.50 feet on each side of the described centerline; thence continuing North 21°32'13" West a distance of 889.21 feet to a point; thence on a curve to the right an arc distance of 197.74 feet to a point said curve having a radius of 337.58 feet, a tangent of 100.00 feet, an6 a central angle of 2113'28"; thence North 00°18'45" West a distance of 353.60 feet to "Point A"; thence on a curve to the left an arc distance of 110.24 feet to a point of termination on the east boundary of the previously described sub- station site, which point bears North 00°31'06" West a distance of 18.0C feet from the southeast corner of said substation site, said curve hav- ing a radius of 70.00 feet, a tangent of 70.29 feet and a central angle of 90°14'10". ALSO Beginning at said "Point A" thence North 00°18'45" West a distance of 240-14 feet to a point; thence on a. curve to the left an arc distance of 295.08 feet to a point of termination on the north ,boundary of the previously described sub- station site, which point bears North 89°45'37" East a distance of 18.0C feet from the northwest corner of said substation site, said curve hav- ing a radius of 93.65 feet and a central angle of 180°31'20". ALSO Being a right-of-way of a guy stub pole and anchors 10.0 feet in width, 5.0 feet on each side of the following described centerline; Beginning at a point on the north boundary line of the previously described substation site which point bears North 89°45'37" East a dis- tance of 69.0 feet from the Northwest corner of said substation site; thence North 00°31'06" West a distance of 60.0 feet to the point of terminus. Bearings based en Solar Observation. 1 FORM NO. C-6000-3 FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNEP's FO[_ICY—FORM $-870 (AMENDED f0-17-70) SCHEDULE B This Policy does not insure against loss or damage by reason of the following: I. Rights or claims of parties in possession not shown by the public records. 2. Easements, or claims of easements, not shown by the public records. 3. Discrepancies, conflicts in boundary lines, shortage in area, encroachments, and any facts which a cor- rect survey and inspection of the premises would disclose and which are not shown by the public records. 4. Any lien, or right to a lieu, for services, labor, or material heretofore or hereafter famished, imposed by law and not shown by the public records. 5. Taxes due and payable; and any tax, special assessments, charge or lien imposed for water or sewer service, or for any other special taxing district, 6. Easement and right of way for county road, according to right of way deed from The State of Colorado to The Board of County Commissioners, recorded March 17, 1909 in Book 296 at Page 149 as Reception No. 138986 conveying a strip of land 30 feet wide off West side of W' Section 36-3-64..c 7. Oil and gas lease between CRAP Inc, and Terra Resources, Inc., a Delaware Corporation, recorded April 12, 1972 in Book 665 as Reception No. 1587454 and any and all assignments thereof or inter- ests therein. NOTE: Affidavit of Production and Extension of Leases recorded July 10, 1978 in Book 838 as Reception No. 1759559 given in connection with the above oil and gas lease, 8, Easement and right of way for the purpose of constructing, reconstructing, operating and maintaining natural gas pipelines over, upon, under and across the surface of those certain portions of school lands as granted to Industrial Gas Services, Inc. by State Board of Land Commissioners, in the instrument recorded November 26, 1974 in Book 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No. 1668412 affecting the following described property; In Section 36, Township 3 North, Range 64 West of the 6th P.M., a 12 -inch pipeline, beginning at a point on the South boundary of said Section 36, which point bears Easterly along the South boundary of said Section 36 a distance of 12.5 feet from the Southwest corner of said Section 36; thence N00°44154"E parallel to and 12.5 feet Easterly of the West boundary of said Section 36 for a distance of 1,240.0 feet to point "A"; thence continuing N00°44'54"E a distance of 3,963.6 feet to point "B"; thence continuing N00°44'54"E a distance of 5.0 feet to a point; thence N29°1.5'06"W a distance of 35.0 feet to a point of ending on the West boundary of said Section 36; and FORM NO. c-l3OOO-3C FOR USE W(T1.I COLORADO REGION AMERICAN LAND TITLE ASSOCIATION LOAN POLICY TBTO (AMCND O-tO-17.70) FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM S-1970 LAMENDED 10.17-701 SCHEDULE 8 ---Continued a 3 inch pipeline beginning again at point "B" as previously described; thence East parallel to and 57.0 feet South of the North boundary of said Section 36, a distance of 3,814.0 feet to point "C"; thence continuing East a distance of 1,401,0 feet to a point of ending on the East boundary of said Section 36; and a 2 -inch pipeline beginning again at point "A", as previously described; thence S89°15`06"E a distance of 1,540.7 feet to a point; thence N07c9l8'06"W a distance of 75.0 feet to the point of ending in the SWa of said Section 36; and beginning again at point "C", as previously described; thence South a distance of 1,166.5 feet to the point of ending in the NWt of said Section 36; containing 7.586 acres, more or less. 9. Terms, agreements, provisions, conditions and obligations as contained in right of way and agreement recorded November 26, 1974 in nook 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No'. 1668412. 10. Easement and right of way for pipeline right of way as evidenced by Memorandum of Contract between Adolph Coors Company, a Colorado Corp- oration and R. C. Spencer Construction Co., Inc., insofar as same may affect subject property, recorded October 4, 1974 in Book 724 as Reception No. 1646043. 11. Any lose or damage by reason of the fact that the right of way under which the insured herein asserts an interest in subject property is insufficient as to its acknowledgment. 1 Continued from Back of Front Cover S. OPTIONS 'TO PAY OR OTHERWISE SETTLE CLAIMS The Company shall have the option to pay or otherwise settle for or in the name of an insured claimant any claim en- sured against or to terminate all liability and obligations of the Company hereunder by paying or tendering payment of the amount of insurance under this policy together with any costs, attorneys' fees and expenses incurred up to the time of such payment or tender of payment, by the insured claim- ant and authorized by the Company. 6. DETERMINATION AND PAYMENT OF LOSS (a) The liability of the Company under this policy shall in 710 case exL•eed the least of, li) the actual loss of the insured claimant; or (ii) the amount of insurance in Schedule A. (b) The Company will pay, in addition to any Ipss insured against by this policy, all costs imposed upon an insured in liti- gation carried on by the Company for such insured, and all costs, attorneys' fees and expenses in litigation carried on by such insured with the written authorization of the Company. (c) When liability has been definitely fixed in accordance with the conditions of this policy, the loss or damage shall be payable within 30 days thereafter. 7. LIMITATION OF LABILITY No claim shall arise or be maintained under this policy (a) if the Company, after haying received notice of an alleged defect, lien or encumbrance insured against hereunder, by litigation or otherwise, removes such defect, lien or encum- brance or establishes the title. as insured, within a reasonable time after receipt of such notice; (b) in the event of litigation until there has been a final determination by a court of com- petent jurisdiction, and disposition of all appeals therefrom, adverse to the title- as insured, as provided in. paragraph 3 hereof; or (c) for liability voluntarily assumed by an insured in settling any claim or suit without prior written consent of the Company, a. REDUCTION OF LIABILITY All payments under this policy, except payments made for costs, attorneys' fees and expenses. shall reduce the amount of the insurance pro tanto. No payment shall be made without producing this policy for endorsement of such payment unless the policy he lost or destroyed, in which case proof of such loss or destruction shall be furnished to the satisfaction of the Company 9. LIABILITY NONCUMULATIVE It is expressly understood that the amount of insurance. under this policy shall be reduced by any amount the Com- pany may pay under policy insuring either {a) a mortgage shown or referred to in Schedule B hereof which is a lien on the estate or interest covered by this policy, or (b) a mortgage hereafter executed by an insured which is a charge or lien on the estate or interest described or referred to in .Schedule A, and the amount so paid shall be deemed a payment under this policy. The Company shall have the option to apply to the pay- ment of any such mortgages any amount that otherwise would be payable hereunder to the insured owner of the estate or interest covered by this policy and the amount so paid shall be deemed a payment under this policy to said insured owner. 10. APPORTIONMENT If the land described in Schedule A consists of two or more parcels which are not used as a single site, and a foss is estab- lished affecting one or more of said parcels but not all, the loss shall be computed and settled on a pro rata basis as if the amount of insurance under this policy was divided pro rata as to the value on Date of Policy of each separate parcel to the whole, exclusive of any improvements made subsequent to hate of Policy, unless a liability or value has otherwise been agreed upon as to each such parcel by the Company and the insured at the time of the issuance of this policy and shown by an express statement herein or by en endorsement attached hereto. 11. SUBROGATION UPON PAYMENT OR SETTLEMENT Whenever the Company shall have settled a claim under this policy, all right of subrogation shalt vest in the Company unaffected by any act of the insured claimant. The Company shall be suhrogated to and he entitled to all rights and reme- dies which such insured claimant would have had against any person or property in respect to such claim had this policy not been issued, and if requested by the Company, such insured claimant shall transfer to the Company all rights and remedies against any person or property necessary in order to perfect Such right of subrogation and shall permit the Company to use the name of such insured claimant in any transaction or litigation involving such rights or remedies. If the payment does not cover the loss of such insured claimant, the Company shall be aubrogated to such rights and remedies in the pro- portion which said payment bears to the amount of said loss. If loss should result from any act of such insured claimant, such act shall not void this policy, but the Company, in that event, shall be required to pay only that part of any losses insured against hereunder which shall exceed the amount, if any, lost to the Company by reason of the impairment of the right of subrogation. 12. LIABILITY LIMITED TO THIS POLICY 'This instrument together with ail endorsements and other instruments, if any, attached hereto by the Company is the entire policy and contract between the insured and the Company Any claim of loss or damage, whether or not based on negligence, and which arises out of the status of the title to the estate or interest covered hereby or any action asserting such claim, shall be restricted to the provisions and conditions and stipulations of this policy - No amendment of or endorsement to this policy can be made except by writing endorsed hereon or attached hereto signed by either the President. a Vice President. the Secretary, are Assistant Secretary, or validating officer or authorized signatory of the Company. 13. NOTICES, WHERE SENT All notices required to be given the Company and any statement in writing required to be furnished the Company shall be addressed to Transamerica Title Insurance Company, P. O. Box ti0S, Denver. Colorado 8020]. 31c6). 0016a/03,61,o Policy of Title Insurance issued by Transamerica Title Insurance Company SUBJECT TO THE SCHEDULE OF EXCLUSIONS FROM COVERAGE, THE EXCEPTIONS CON- TAINED IN SCHEDULE B AND THE PROVISIONS OF THE CONDITIONS AND STIPULATIONS HEREOF, TRANSAMERICA TITLE INSURANCE COMPANY, a California corporation, herein called the Company, insures, as of Date of Policy shown. in Schedule A, against loss or damage, not exceeding the amount of insurance stated in Schedule A, and costs, attorneys' lees and expenses which the Company may become obligated to pay hereunder, sustained or incurred by the insured by reason of : 1. Title to the estate or interest described in Schedule A being vested otherwise than as stated therein; 2. Any defect in or lien or encumbrance on such title. 3. Lack of a right of access to and from the land; or 4. tJnmarketability of such title. In Witness Whereof, Transamerica Title Insurance Company has caused this policy to he signed and sealed by its duly authorized officers as of Date of Policy shown in Schedule A, Transamerica Title Insurance Company By By Prreident Secretary 7mb/ ' 2 1 1 9 AMOUNT PREMIUM OWNER s 5,000.00 $ 75.00 Public Service Company of Colorado P.O. Box 840 Denver, Co 80201 Attn: Terry Beck Curtis Your Reference No. 8009134 Sheet 1 of 5 C MORTGAGE $ ADDITIONAL CHARGES COST OF TAX CERTIFICATE SURVEY COSTS CC's To: TOTALS $ ___..7 5 . Q 0 COMMITMENT TO INSURE Transamerica Title Insurance Company, a California corporation, herein called the Company, for a valuable consideration, hereby commits to issoe its policy or policies of title insurance, as identified in Schedule A, in favor of the proposed insured named in Schedule A, as owner or mortgagee of the estate or interest covered hereby in the land described or referred to in Schedule A, upon payment of the premiums and charges therefor; ail subject to the provisions of Schedules A and B and to the conditions and stipula- tions shown on the inside of the cover. Customer Contact Phon• e 69-49-54 /mhs The effective date of this commitment is October 1 ` At which time fee title was vested in THE STATE OF COLORADO SCHEDULE A 1. Policies to be issued: (A) Owners': By_ M It Stephens AUTHORIZED SIGNATURE , t9..__$ _at 8-= 00 M. PUBLIC SERVICE COMPANY OF COLORADO, a Colorado Corporation (B) Mortgagee's: rot -roll.. C-142.1 $009134 Sheet 2 of 5 SCHEDULE A —Continued 2. Covering the Land jn the State of Colorado, County of Weld Described as: The N1/2 ofW? S ¢} Hof Section 36, Township 3 North, Range £ 4 West th e the 6th F.M. Form Nu. C.-112 2 8009134 Sheet 3 of 5 `3 9 I I I SCHEDULE A ---Continued REQUIRE7k1EN'TS 3. The following are the requirements to be complied with prior to the issuance of said policy or policies. Any other instrunient recorded subsequent to the date hereof may appear as an exception under Schedule B of the policy to be issued. Unless otherwise noted, all documents must be recorded in the office of clerk and recorder of the county in which said property is located. A. Duly acknowledged easement from THE STATE OF COLORADO to PUBLIC SERVICE COMPANY OF COLORADO, a Colorado Corporation, conveying an easement, the exact location and purposes o£ which are to be determined. x r,N. r.ld'$ 8009134 Sheet 4 of 5 SCHEDULE, B THE POLICY OR POLICIES TO BE ISSUED HEREUNDER WILL NOT ENSURE AGAINST: 1. Rights or claims of parties in possession not shown by the public records. 2, Easements, or claims of elsements, not shown by the public records. 3. Discrepancies, conflicts in boundary lines, shortage in area, encroachments, and any facts which a correct survey and inspection of the premises would disclose and which are not shown by the public records. 4. Any lien, or right to a lien, for services, labor, or material heretofore or hereafter furnished, im- posed by law and not shown by the public records. 5. Taxes due and payable; and any lax, special assessments, charge or licit imposed for water or sewer service, ar for any other special taxing district. 6. Easement and right of way for county road, according to right of way deed from The State of Colorado to The Board of County Commissioners, recorded March 17, 1909 in Book 296 at Page 149 as Reception Nu. 1313986 conveying a strip of land 30 feet wide off West side of W1 Section 36-3-64. 7 Oil and gas lease between CRA, Inc. and Terra Resources, Inc., a Delaware Corporation, recorded April 12, 1972 in Book 665 as Reception No. 1587454 and any and all assignments thereof or inte.rW ests therein. NOTE; Affidavit of Production and Extension of Leases recorded July 10, 1978 in Pook 838 as Reception No. 1759559 given in connection with the above oil and gas lease. 8 Easement and right of way for the purpose of constructing, reconstructing, operating and maintaining natural gas pipelines over, upon, under and across the surface of those certain portions of school lands as granted to Industrial Gas Services, Inc. by State Board of Land Commissioners, in the instrument recorded November 26, 1974 in Book 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No. 1668412 affecting the following described property: In Section 36, Township 3 North, Range 64 West of the 6th P.M., a 12 -inch pipeline, beginning at a point on the South boundary of said Section 36, which point bears Easterly along the South boundary of said Section 36 a distance of 12.5 feet from the Southwest corner of said Section 36; thence 1404°44'54"E parallel to and 12.5 feet Easterly of the West boundary of said Section 36 for a distance of 1,240.0 feet to point "A"; thence continuing NO0444'54'TE a distance of 3,963.6 feet to point "B"; thence continuing N00°44'54"i; a distance of 5.0 feet to a point; thence N29°15'Q6"W a distance of ?5.0 feet to a point of ending on the West boundary of said Section 36; and at point "l3" a 3 inch pipeline beginning again as previously described; thence East parallel to and 57.0 feet South of the North boundary of said Section 36, a distance of 3,814.0 feet to point "C" ; thence continuing East a distance of 1,401.0 feet to a point of ending on the East boundary of said Section 36; and 8009134 Sheet 5 of 5 SCHEDULE l3 —Continued EXCEPTIONS continued 8. continued... a 2 -inch pipeline beginning again at point 'A" thence S89°15'06"E a distance of 1,540.7 feet toga s ppoint; thence cescribed' „ a distance of 75.0 feet to the point of ending in the STAN sai NSe �ti 06 Iti� 36; m of said Section and beginning again at point "C", as previously described; thence South a distance of 1,166.5 feet to the point of ending in the NWT of said Section 36; containing 7.586 acres, more or less. 9. Terms, agreements, provisions, conditions and obligations as contained in right of way and agreement recorded November 26, 1974 in Book 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No. 1668412. 10. Easement and right of way for pipeline right of way as evidenced by Memorandum of Contract between Adolph Coors Company, a Colorado Corp- oration and R. G. Spencer Construction Co., Inc., insofar as same may affect subject property, recorded October 4, 1974 in Book 724 as Reception No. 1646043. m No. C.1 it' E ti CONDITIONS AND STIPULATIONS Please read carefully 1. This is a Commitment to issue one or more policies of title insurance in our Standard Form when, the requirements set tliis}1Go� Commitment ismu5 used if tl ce'tnis any tiq[iestianlis in the al�4utc veragele and should be examined 2. Only the policies shown are committed to, if there are any changes in the transaction, order an amendment from us. 2, The date on this Commitment is important,. Nothing after that date has been considered by us. d. This commitment is good for 6 months only. Extensions should be ordered from us if they are needed. FOFIM NO, C.S000.1 FOR USE WiT]'1 COLORADO REO.ION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM E- 1970 (AMENDED 10-17-70) SCHEDULE A Amount of Insurance. $ 5,000.00 Policy Nu. 8009134 1)Itte of Polley September 11, .1981 Sheet 1 of 8:00A.hi. 1. Name of Insured; PUBLIC SERVICE COMPANY OF COLORADO, a Colorado corporation 2. The estate or interest in The land described herein and which is covered by this policy is: EASEMENT 3. The estate or interest referred to herein is at Date of Policy vested in: PUBLIC SERVICE COMPANY OF COLORADO, a Colorado corporation FORM NO. C.60O0-2 FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION LOAN POLICY 11174 (AMENDED 10-17.7O) FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM U -1Y70 (AMENDED 10.17-70) SCHEDULE A ---Continued The laud referred to in this policy is situated in the Slate of Calorado, Comity of Weld , and is described as follows-: Easements for the purpose of constructing, reconstructing, operat- ing and maintaining a 115 RV transmission line, a substation site, and an access road, over and across the following described property: In the Southwest One -quarter (SW1) of Section Thirty six (Sec. 36), Township Three North (T 3 N), Range Sixty-four West (R 64 W). Being a right-of-way for a substation, described by metes and bound as follows; Beginning at a point, which point bears South 67°06'29" East a distance of 206.21 feet from the west quarter corner of said Sec. 36; thence North 89°45'37" East a distance of 136.00 feet to a point; thence South 00°31'06" West a distance of 186.93 feet to a point; thence South 89446'15" West a distance of 136.00 feet to a point; thence North 00631'07" East a distance of 186.90 feet to the point of beginning. ALSO Being a right-of-way for a 115 KV Transmission line described by metes and bounds as follows: Beginning at a point on the west boundary of said Sec. 36, which point bears South 00°33'4611 West along said west boundary, A distance of 225.39 feet from the west quarter corner of said Sec. 36; thence continuing South 00433'46" West a distance 75.0D feet to a point on the west boundary of said'Sec. 36; thence North 89°46'15" East a distance of 326.93 feet to a point; thence North 00°31'06" East a distance of 32.50 feet t❑ the southeast corner of the said substation site; thence South 89°46'l5T" West along the south boundary of said substation a distance of 136.00 feet to the southwest corner of said substation; thence North 00°31'07" East along the west boundary ❑f said substation a3istance of 42.50 feet to a point; thence South 89°46'14" West a distance of 190.88 feet to the point of beginning. ALSO Being a right-of-way for an access road or variable width. The centerline being more particularly described as follows; Beginning at a point, which point bears South 24°13'47" East a dis- tance of 1916.90 feet from the west quarter corner of said Sec. 36, at which point said right-of-way is 36.67 feet on each side of said center- line: FORM NO, C-5000.30 FOR USE WITH COLORADO REG]ON AMERICAN LAND TITLE ASSOCIATION LOAN POLICY 1970 ✓iAMENDEO 14.17.70} FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM (AMENDED 10.17.7Q) SCHEDULE A —Continued thence North 21°32'13" west a distance of 63.64 feet to a point at which point said right-of-way has tapered to 15.00 feet, 7.50 feet on each side of the described centerline; thence continuing North 21°32'13" West a distance of 889.21 feet to a point; thence on a curve to the right an arc distance of 197.74 feet to a point said curve having a radius of 537.58 feet, a tangent of 100.00 feet, and a central angle of 21°13'28"; thence North 00°18'45" West a distance of 353.60 feet to "Point A"; thence on a curve to the left an arc distance of 110.24 feet to a point of termination on the east boundary of the previously described sub- station site, which point bears North 00°31'06" West a distance of 18.00 feet from the southeast corner of said substation site, said curve hav- inga radius of 70.00 feet, a tangent of 70.29 feet and a central angle of 90'14'10". ALSO Beginning at said "Point A" thence North 00°18'45" West a distance of 240.14 feet to a point; thence on a curve to the left an arc distance of 295.08 feet to a point of termination on the north boundary of the previously described sub- station site, which point bears North 89°45'37" East a distance of 18.00 feet from the northwest corner of said substation site, said curve hav- ing a radius of 93.65 feet and a central angle of 180°31'20". ALSO Being a right-of-way of a guy stub pole and anchors 10.0 feet in width, 5.0 feet on each side of the following described centerline: Beginning at a point on the north boundary line of the previously described substation site which point bears North 89°45'37" East a dis- tance of 69.0 feet from the Northwest corner of said substation site; thence North 00'31'06" West a distance of 60.0 feet to the point of terminus. Bearings based on Solar Observation. FORM NO. C-6OO0-319 FOR USE WITH COLORADO REGION AMERICAN LAND TITLE ASSOCIATION OWNER'S POLICY -FORM B-1970 (AMENDED 10-17-701 SCHEDULE B This Policy dues not insure against loss or damage by reason of the following; 1. flights or claims a parties in possession not shown by the public records. 2. Easements, or clairnE of easements, not shown by the public records. 3. Discrepancies, conflicts in boundary lines, shortage in area, encroachments, and any facts which a cop rest survey and inspection of the premises would disclose and which are not shown by the public records. 4. Any lien, or right to a lieti. for services, labor, or material heretofore or hereafter furnished, imposed by law and net shown by the public records. 5. Taxes due and payable; and any tax, special assessments, charge or lien imposed for water or sewer service, or for any other special taxing district. 6. Easement and right of way for county road, according to rightof way deed from The State of Colorado to The Board of County Commissioners, recorded March 17, 1909 in Book 296 at Page 149 as Reception No. 138986 conveying a strip of land 30 feet wide off West side of W1 Section 36-3-64. 7. Oil and gas lease between CIA, Inc. and Terra Resources, Inc., a Delaware Corporation, recorded April 12, 1972 in Book 665 as Reception No. 1587454 and any and all assignments thereof or inter- ests therein. NOTE: Affidavit of Production and Extension of Leases recorded July 10, 1978 in Book 838 as Reception No. 1759559 given in connection with the above oil and gas lease. 8. Easement and right of way for the purpose of constructing, reconstructing, operating and maintaining natural gas pipelines over, upon, under and across the surface of those certain portions of school lands as granted to Industrial Gas Services, Inc. by State Board of Land Commissioners, in the instrument recorded November 26, 1974 in Book 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No. 1668412 affecting the following described property= In Section 36, Township 3 North, Range 64 West of the 6th P.M., a 12 -inch pipeline, beginning at a point on the South boundary of said Section 36, which point hears Easterly along the South boundary of said Section 36 a distance of 12.5 feet from the Southwest corner of said Section 36; thence N00°44'54"E parallel to and 12.5 feet Easterly of the West boundary of said Section 36 for a distance of 1,240.0 feet to point "A"; thence continuing NO0°44'54"E a distance of 3,963.6 feet to point "B"; thence continuing N03°44'54"E a distance of 5.0 feet to a point; thence N29°15'45*"W a distance of 25,0 feet to a point of ending on the West boundary of said Section 36; and 'FORM NO. C -6000-3C FOR USE WITH COLORADO REGION AMERICAN LANG TITLL ASSOC1ATION LOAN POLICY 1970 (AMENDED 10-47-701 FOR LIRE WI•TI{ COLORADO REGION AMERICAN LAND TITLE ARSOCIATiON OWNER'S POLICY -FORM 8-19'0 (AMENDED 10-17-70) SCHEDULE B -----Continued a 3 inch pipeline beginning again at point "$11 as previously described; thence East parallel to and 57.0 feet South of the North boundary of said Section 36, a distance of 3,814.0 feet to point "C"; thence continuing East a distance of 1,401.0 feet to a point of ending on the East boundary of said Section 36; and a 2 -inch pipeline beginning again at point "A", as previously described; thence S89°15'06"E a distance of 1,540.7 feet to a point; thence N076]L8'06"W a distance of 75.0 feet to the point of ending in the SW4 of said section 36; and beginning again at point "C", as previously described; thence South a distance of 1,166.5 feet to the point of ending in the NWT of said Section 36; containing 7.586 acres, more or less. 9. Terms, agreements, provisions, conditions and obligations as contained in right of way and agreement recorded November 26, 1974 in Book 727 as Reception No. 1649235 and amended right of way recorded August 28, 1975 in Book 746 as Reception No. 1668412. 10. Easement and right of way for pipeline right of way as evidenced by Memorandum of Contract between Adolph Coors Company, a Colorado Corp- oration and R. G. Spencer Construction Co., Inc., insofar as same may affect subject property, recorded October 4, 1974 in Book 724 as Reception No. 1646043. 11. Any loss or damage by reason of the fact that the right of way under which the insured herein asserts an interest in subject property is insufficient as to its acknowledgment. EASEMENT TO PUBLIC SERVICE COMPANY OF COLORADO 94 2,893639 • SEp,1 0 1931 �j" ag IL. BOOK • •R1 CEPTIQN 9 . I DATi : Ttlymu MARY ANN FEUERSTEIN, Clerk and Recorder, Yie.id County, Cololo d l RIGHT OF WAY N0. 2422, Book 24 1. 1. THIS EfDENTURE, Made this 6th day of January, 1981, between 2. the STATE OF COLORADO, acting by and through the STATE BOARD OF LAND 3. COMM1SStONERS, party of the first part and PUBLIC SERVICE COMPANY OF 4. COLORADO, P. O. Box 840, Denver, CO 80201, party of the second part: WITNESSETH 1. 2. WHEREAS, Forty of the second part has made application to 2. the said Board of Land Commissioners for a right-of-way over, upon, under, 3. and across the surface of certain portions of school lands as hereinafter 4. described for the purpose of constructing, reconstructing, operating, and 5. maintaining a 115 kV transmission line, a substation site, and an access 6, road, and 1. 3. WHEREAS, Said State Board of Land Commissioners has, in 2. manner and form as provided by statute, granted such right-of-way for the 3. purpose aforesaid and none other, upon the terms and conditions set forth 4. herein, and has duly authorized the proper officers of said State to execute 5. this indenture: 1. 4. NOW, TEEREFORE, THESE PRESENTS WITNESSETH, That the said 2. party of the first part, in consideration of the premises, and in the 3. further consideration of the sum of two hundred forty-three and no/100 4. Dollars ($243.00), lawful money of the United States, by second party to 5. first party in hand paid, the receipt whereof is hereby confessed and 6. acknowledged, has granted and by these presents does grant unto the party 7. of the second part, Sts successors, and assigns, a right-of-way for the 8. purpose of constructing, reconstructing, operating, and maintaining a 9- a 115 kV transmission line, a substation site, and an access road, upon, 10. over, under, and across the surface of those certain portions of school 21. lands described as follows; - 1 - 9'17 1865639 In the So hwest One -quarter " (S ')2f 4econ Thirty-six (Sec. 36), Township Three North ('1' 3 N), Range Sixty -Four West (R 64 W) Being a right-of-way for a substation, described by metes and hounds as follows! Beginning at a point, which iT;oint bears South 67 O 06' 29" East a distance of 205.21 feet from the west quarter corner of said Sec. 36; Thence North 89° 45' 37" East a distance of 136.00 feet to a point; Thence South 000 31' 06" Wet a distance of 136.93 feet to a point; Thence South 89° 45' 15" West a distance of 136.00 feet to a point; Thence North 00° 31' 07" East a distance of 186.90 feet to the point of beginning. Containing 0.53 acres, more or less. Also 8cing a right-of-way for a 115 kV transmission line des- cribed by metes and bounds as fallow$: Beginning at a point on the west boundary of said Sec. 36, which point bears South 000 33' 46" West along said west boundary, A distance of 225.39 feet from the west quarter corner of said Sec. 36; Thence continuing South 00° 33' 46" West a distance 75.00 feet to a point on the west boundary of said Sc. 36; Thence North 99 e 45' 15" Gast a distance of 326.43 feet to a point; Thence North 00° 31' 06" Cast a distance of 32.50 feet to the southeast corner of the said substation site; Thence South 09° 46' 15" West along the south boundary of said substation a distance of 136.60 feet tc the southwest corner of said substation; Thence North 00° 31' 07" Fast along the west boundary of said substation a distance of 42.50 feet to a uoi.nt; Thence South 890-46' I4" West a distance of 100.98 feet to the point of beginning. Containing 0.44 acres, more or less. - 2 - 947. ` r 1668609 Also 7 Bin aig'It-d-way for an access road of variable width. The centerline being more part- icularly described as follows: Beginning at a point, which point hears South 24° 13' 47" East a distance of 1916.90 feet from the west quarter corner of said Sac. 36, at which point said right-of-way is 36.67 fact on each side of= said center- line: Thence North 210 3p' 13" West a distance of 63.64 feet to a point at which point said right-of-way has tapered to 15.30 feet, 7.50 feet on each side of the described centerline; Thence continuing North 210 32' 13" West a distance of 889.21 feet to a point; Thence on a curve to the right an arc distance of 197.74 feet to a point, said curve having a radius of 537.58 feet, a tangent of 100.00 feet, and a central angle of 210 13' 28"' Thence North 00° 18' 45" West a distance of 353.60 feet to "Point A"; Thence on a curve to the left an arc distance of 11D.24 feet to a point of termination an the east boundary of the pre- viously described substation site, which point bears North 00° 31' 0o" West a distance of 18,00 feet from the southeast corner of said substation site, said curve having a radius of 70.00 feet, a tangent of 70.29 feet and a central angle of 9De14' 10" - Also Beginning at said "Point A" thence North D00 180 45" West a distance of 240.14 feet to a point; Thence on a curve to the left an arc distance of 295.06 feet to a point of termination on the north houndary of the previously described substation site, which point bears North 89° 45' 37" East a distance of 18.00 feet from the northwest corner of said substation site, said curve having a radius of 93.65 feet and a central angle of 150° 31' 20". Containing 0.74 acres, mare or less. 3 - iOOK,RECEPTIOi+IK18fi6 3 3 Also Being a right-of-way of a guy stub pole and anchors 10.0 feet in width, 5.0 feet on each side of the following described Centerline; Beginning at a point an the north boundary line of the pre- viously described substation site wnion point bears North 890 5' 37" East a distance of 69.4 feet from the Northwest corner of said substation site; Thence Forth 00° 31' 05" west a distance of 50.0 feet to the point of terminus. Containing 0.014 acres, more or less. Bearings based on Solar Observation. 3a 947' ' i8i8G:9 • 1. J , } 2 1 1 r 5. This grant is made with the understanding that the party of the 2. second part must construct the facility or facilities described above within 3. two years from date hereof, failing in which this grant shall be subject to 4. cancellation at the option of the party of the first part. If the party of 5. the first part agrees to extend such epnstruction period, it is understood 6. by the parties hereto that the party of the first part may fix additional 8. 7. consideration based on a reappraisal of said right-of-way at the time of completion of construction of said facilities. 6. All rights to any and all minerals, ores, and metals of any kind 1. 2. and character, and all coal, asphaltum, oil, gas, geothermal resources, or 3. other substances in or under said land are hereby reserved to the State of 4. Colorado. In the event the party of the first part should at any time de - 5. sire to occupy or use or permit the occupancy or use of the lands which are subject to the right-of-way herein granted or any portions thereof for any 2. purpose with which the aforesaid facilities would interfere, including the 8. mining, removing, or recovering of all minerals, ores, and metals of every 6. 9. kind and character and all coal, asphaltum, geothermal steam and other sub - 10, stances, in or under said land, then the party of the first part may require 11. the party of the second part to relocate, raise, lower, disconnect, or 12. otherwise adjust the facilities described above at any location or locations 13. where said facilities pass over and across State lands after first, in each 14, case, receiving not less than 90 days' prior written notice from the first 15, party. In such event the party of the second part shall be furnished a 16. similar right-of-way over and across State lands, where available and suit - 17. able, free of charge, as a satisfactory right-of-way to relocate, raise, 18. lower, disconnect or otherwise adjust said facilities. In any event not 19. more than one-half of the expense of said relocation, movement, or rebuild - 20, ing shall he paid by the party o£ the second part. 1. 7. This grant of right-of-way is made subject to any and all ease - 2. scents and rights -of -way heretofore legally granted and now in full force and 3. effect, if any there be. - 4 - 947. " . 18696:39 BOOK -- "I -le 1. 8. The party of the first part reserves the right to cultivate, use 2, and occupy said premises for any purpose consistent with the tight and 3. privilege herein granted and which will not interfere with or endanger any 4. of the facilities of the party of the second part, or use thereof, Such 5. reservation shall in no event include the right to construct any buildings 6. or structures, to impound any water, or to plant trees, or shrubs upon the 7. right-of-way herein granted. 1. 9. The party of the first part shall have the right at any and all 2. times during the continuance of this right-of-way to sell or otherwise dis- 3. pose of said land and to use the same for all purposes, except as necessar- 4. ily limited by the facility or facilities described above, 1. 14. This right-of-way is made for the sole and only purpose as here - 2. in set forth and no other and it shall not be deemed to give the party of 3. the second part exclusive possession of any part of the land above described; 4. and in the event that the party of the second part, or its successors or as - 5, signs shall at any time use or attempt to use the same for any other purpose 6. whatsoever, then and in that case this right-of-way shall become void and of 7. no effect, and any and all such rights and privileges herein granted shall 8. revert to the party of the first part or its successors in interest, 1. 11. The party of the second part shall have the right to trim trees 2. and shrubbery upon this right--of-way only if such trees or shrubbery should 3, materially interfere with or endanger the proper operation and maintenance 4. of said facilities. 1. 12. This right-of-way does not grant permission, express ar implied, 2. to the party of the second part, for water exploration, drilling, or es - 3. tablishing water wells, without written authorization of the party of the 4. first part. If the party of the second part shall establish any water right 5. on State land, for any use on or off State land, such right shall be, and 6. remain, the property of the party of the first part. 1. 13. The party of the second part shall not sublet, in whole or in 2. part, the right-of-way herein granted, and shall not assign this agreement 3. without the written consent of the first party, and it is agreed that any 4. transfer or assignment, or attempted transfer or assignment of this agreement, - 5 - 947 18689 3 1 `� 7 t `} 3 5. or any of the rights hereby granted, without such coosent in writing, shall 6. be absolutely void, and, at the option of the first party, shall terminate 7. this agreement. 1. 14. The party of the second part shall not fence or otherwise ee- 2. struct free and open access to and travel upon, over and across said land, 3. without written authorization of the party of the first part. 1. 15. The party of the second part shall have such rights of ingress 2. and egress as may be necessary for the construction, reconstruction, opera - 3. riot', maintenance and removal of said facilities, but shall not leave open, 4. or permit to be left open, any fences, bars or gates. All such fences, bars 5. or gates which may he damaged or disturbed in any way shall be fully re- 6. stored by the second party_ 1. 16. In the event that the facility or facilities for which this 2. right-of-way is granted are to be enlarged, replaced, relocated, or added 3. to in the future, the party of the second part shall advise the party of 4. the first part of such change and furnish surveys, plats and description of 5. the change to the party of the first part. An additional consideration, com- b, mensurate with the damage to the value of the State land, may be required, 7. as determined by the first party. 1. 17. The right -of --way herein granted shall continue for as long as 2. the facilities described above are in place and maintained by the second 3. party, provided that should said facilities be abandoned or discontinued far 4. a period of twelve (12) consecutive months, this right -of -,way and all rights 5. of the second party hereunder shall automatically and without notice terminate 6. at the end of such twelve (12) month period. 1. 18. The party of the second part may remove said facilities when - 2. ever it may desire and forthwith, upon such removal, the right-of-way herein 3. granted and all rights of the second party under this right-af-way shall 4. terminate, excepting that temporary removal of said facility during recon- 5. struetion shall not terminate this right-of-way. I. 19. In case this right-of-way is terminated for any cause. whatsoever, 2. the party of the second part shall restore the lands occupied by said right - 3. of -way as nearly as possible to their condition prior to the construction - 6 - 947 BOOK. „..."-_ REC£PTlON..:.........:..�.......... 1868639 '7 } 7 ? ! 4. of the facility or facilities, if requested to d❑ so in writing by the party 5. of the first part, 1. 20. The party of the second part agrees to assume all liability 2. arising from the exercise of the righteof-'way herein granted; including but 3. not limited to, the risk of all injuries, including death resulting there'- 4. from, to persons, and damage to and destruction of pr❑perty including loss 5. o£ use thereof, resulting directly or indirectly, wholly or in part, from the 6. prosecution or omission of any work or obligation undertaken or required by 7. this Agreement, and to indemnify and save harmless the first party from and 8. against any and all liability arising therefrom. 1. 21, The party of the second part will pay to the party of the first 2. part the full amount necessary to compensate the fitet party for damages to 3. its property, rights, franchises or privileges, Including legal liabilities 4. and damages to crops of lessees, resulting from acts or omissions of the 5. second party, its agents or employees.* or from the exercise of the right -of - 6. way herein granted and the use of the lands of the first party. 1. 22. Any notice which may be given by the party of the first part to 2. the party of the second part may he mailed registered mail to: Public 3. Service Company of Colorado, P. 0. Box 840, Denver, CO 80201, 4. or such other address as second party shall furnish to the first party in 5. writing and 1i advance of giving such notice, and the second party agrees 6. to advise the first party of any change in said address at any time in the 7. period this right-of-way is in effect. 1. 23. IN WITNESS WHEREOF, The party of the first part has caused 2. these presents to be executed in its name and in its behalf by the State 3. Board of Lend Commissioners and has caused the seal of the State Board of 4. Land Commissioners to be hereunto a€fixed; and the party of the second part 5. has hereunto caused these presents to be signed by its 1,0(kle- e iLd ed. 6. and - 7 - 94' . 1868639 REOEPTiON _ _::Y.y.....:.......r I 2 1 :1 33 7. and its corporate seal affixed hereto, the day and year first above written. STATE OF COLORADO EOARD OF LAND COMMISSIONERS irc a ' 1 1+ Z I A w I!, !' ' ta- Cr4, PABLIC SERVICE COMPANY OF COLORADO $y V; `e President,} Engineering & Planning Attest V .%t, A P Pi1&VE3 FN. EXECUTION K, S & 0 8Y t��s Row Application '80/203 Proofed me Pres en t • et - Register • • . k • Engineeir - B - Application Review Notification Card This is to notify you that the project listed on the other side of this card is within five -hundred (500) feet of your property. You will be notified if there are any future meetings regarding the proposed project on this property. If you would like more information regarding this proposal and the conditions that must be met, the file is public information and is available for review► at our office. You may also view the file online at https://accela-aca.co.weld.co.uslcitizenaccessl by inserting the case number. Comments or objections related to the request should be submitted in writing to the Weld County Department of Planning Services, 1555 N 17th Ave, Greeley, CO 80631 Case #: 1M USR18-80-439 Name: WJW Properties, LLC, c/o Public Service Company of Colorado Proposed Project: Minor Amendment to USR-439 to upgrade/expand the existing substation site in the Agricultural Zone District. Location: Substation is located on a private access road located approximately 3.4 miles north of the intersection of CR 20/CR 59. Planner: Chris Gathman CR !2 176 Weld County Planning Services 1555 N 17th Ave Greeley CO 80631 (970)353-6100 ext. 3540 SURROUNDING PROPERTY OWNERS 1MUSR18-80-439 NAME COORS ENERGY CO WASTE MANAGEMENT CORP DCP MIDSTREAM LP GUTTERSEN RANCHES ADDRESS 1 ADDRESS 2 C/O KE ANDREWS & CO 1900 DALROCK RD C/O WASTE MANAGEMENT PO BOX 1450 PROPERTY TAX DEP 5718 WESTHEIMER RD STE 2000 PO BOX 217 CITY, STATE ROWLETT TX CHICAGO IL HOUSTON TX GREELEY CO ZIP 75088 60690 77057 80632 CERTIFICATE OF MAILING I hereby certify that I have placed a true and correct copy of the surrounding property owners in accordance with the notification requirements of Weld County in Case Number 1MUSR18-80-439 in the United States Mail, postage prepaid First Class Mail by letter as addressed on the attached list this 29th day of November, 2018. Dated the 29th day of November, 2018 taantsain, Kris Ranslem Recording Secretary for Planning Commission WELD COUNTY COLORA❑O LAND RECORDS AFFIDAVIT OF INTERESTED LAND OWNERS SURFACE ESTATE 8/22/2018 11:14:32 AM THE UNDERSIGNED, States that to the best of his or her knowledge the attached list is a true and accurate list of the names, addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor of the owners of the property (the surface estate) within 500 feet of the property being considered. This list was compiled utilizing the records of the Weld County Assessor available on the Weld County Internet Mapping site, http://www,co.weld.co,us, and has not been modified from the original. The list compiled for the records of the Weld County Assessor was assembled within thirty days of the applications submission date. Property Owners Within 264 ft of Parcel # 121536000001 Account Parcel Owner r Signature Date Mailing Address C/O KE ANDREWS & CO 1900 DALROCK RD ROWLETT, TX 750885526 C/O WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 CIO WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 R4971386 121525000007 R4971886 R4974286 121526000010 COORS ENERGY CO WASTE MANAGEMENT CORP 84974386 121535000008 WASTE MANAGEMENT CORP 121535000009 WASTE MANAGEMENT CORP R0922501 121536000001 C/O WASTE MANAGEMENT PO BOX 1450 , CHICAGO, IL 606901450 WJW PROPERTIES LLC 16350 COUNTY ROAD 76 EATON, CO 806158705 C/O KE ANDREWS & CO 1900 DALROCK RD ROWLETT, TX 750885526 ATTN: PROPERTY TAX DEPT 5718 WESTHEIMER RD STE 2000 HOUSTON, TX 770575774 PO BOX 2176 R0922601 R0026393 121536000002 COORS ENERGY CO 121730000006 DCP MIDSTREAM LP R0026493 R2614803 121730000007 121731200004 GUTTERSEN RANCHES LLC GREELEY, CO 806322176 PO BOX 2176 GUTTERSEN RANCHES LLC GREELEY, CO 806322176 Parcels: 12 Owner Records: 12 Page 1 of 3 WELD COUNTY COLORADO LAND RECORDS AFFIDAVIT OF INTERESTED LAND OWNERS SURFACE ESTATE 8/22/2018 11:14:32 AM THE UNDERSIGNED, States that to the best of his or her knowledge the attached list is a true and accurate list of the names, addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor of the owners of the property (the surface estate) within 500 feet of the property being considered. This list was compiled utilizing the records of the Weld County Assessor available on the Weld County Internet Mapping site, http://www,co.weld.co.us, and has not been modified from the original. The list compiled for the records of the Weld County Assessor was assembled within thirty days of the applications submission date. Signature Date Property Owners Within 264 ft of Parcel # 121536000001 Account Parcel Owner _ Mailing Address R5051386 130306000001 GUTTERSEN RANCHES LLC _ PO BOX 2176 GREELEY, CO 606322176 R5066186 130501000005 GUTTERSEN RANCHES LLC PO BOX 2176 GREELEY, CO 806322176 R5066386 130502000001 WASTE MANAGEMENT CORP C/O WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 Parcels: 12 Owner Records: 12 Page 2 of 3 WELD COUNTY COLORADO LAND RECORDS AFFIDAVIT OF INTERESTED LAND OWNERS SURFACE ESTATE 8/22/2018 11:14:32 AM THE UNDERSIGNED, States that to the best of his or her knowledge the attached list Is a true and accurate list of the names, addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor of the owners of the property (the surface estate) within 500 feet of the property being considered. This list was compiled utilizing the records of the Weld County Assessor available on the Weld County Internet Mapping site, http://www.co.weld.co.us, and has not been modified from the original. The list compiled for the records of the Weld County Assessor was assembled within thirty days of the applications submission date. Signature Date Property Owners Within 264 ft of Parcel # 121536000001 Parcels: 12 Owner Records: 12 Page 3 of 3 WELD COUNTY COLORADO LAND RECORDS AFFIDAVIT OF INTERESTED LAND OWNERS SURFACE ESTATE 1/24/2019 2:53:43 PM THE UNDERSIGNED, States that 10 the best of his or her knowledge the attached list is a true and accurate list of the names, addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor of the owners of the property (the surface estate) within 500 feet of the property being considered. This list was compiled utilizing the records of the Weld County Assessor available on the Weld County Internet Mapping site, http://www.co.weld.co.us, and has not been modified from the original. The list compiled for the records of the Weld County Assessor was assembled within thirty days of the applications submission date. Property Owners Within 500 Feet of Parcel # 121536000001 Signature Date Account Parcel Owner Mailing Address R4974266 121535000008 ' WASTE MANAGEMENT CORP C/O WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 R4974386 121535000009 WASTE MANAGEMENT CORP C/O WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 R0922501 121536000001 WJW PROPERTIES LLC 16350 COUNTY ROAD 76 EATON, CO 806158705 80922601 121536000002 COORS ENERGY CO C/O KE ANDREWS & CO 1900 DALROCK RD ROWLETT, TX 750885526 R2614803 121731200004 GUTTERSEN RANCHES LLC PO BOX 2176 GREELEY, CO 806322176 R5051386 130306000001 GUTTERSEN RANCHES LLC PO BOX 2176 GREELEY, CO 806322178 R5066186 130501000005 GUTTERSEN RANCHES LLC PO BOX 2176 GREELEY, CO 806322176 R5066386 130502000001 WASTE MANAGEMENT CORP C/O WASTE MANAGEMENT PO BOX 1450 CHICAGO, IL 606901450 Parcels: 8 Owner Records: 8 Page 1 of 2 SURROUNDING PROPERTY OWNERS 1MUSR18-80-439 WJW PROPERTIES, LLC NAME ADDRESS 1 CITY STATE POSTAL CODE WJW PROPERTIES, LLC 16350 CR 76 EATON CO 80615-8705 PUBLIC SERVICE COMPANY OF COLORADO 1800 LARIMER STREET, SUITE 400 DENVER CO 80202 WASTE MANAGEMENT CORP C/O WASTE MANAGEMENT PO BOX1450 CHICAGO IL 60690-1450 COORS ENERGY CO C/O KE ANDREWS & CO 1900 DALROCK RD ROWLETT TX 75088-5526 GUTTERSEN RANCHES, LLC PO BOX 2176 GREELEY CO 80632-2176 1 hereby certify that I have placed a true and correct copy of the 439 in the United States Mail, postage CERTIFICATE OF MAILING of Weld County in Case Number 1MUSR18-80- this 25th day of January, 2019. surronding property owners in accordance with the notification requirements prepaid First Class Mail by letter as addressed on the attached list Dated the 25t da Janua , 201 Ste anie Frederick Deputy Clerk to the Board EXHIBIT INVENTORY CONTROL SHEET Case 1MUSR18-80-439 - WJW PROPERTIES, LLC, CIO PUBLIC SERVICE COMPANY OF COLORADO Exhibit Submitted By Michael Diehl, representative of Public Service Company of A. Colorado B. C. D. E. F. G. H. I . J. K. L. M. N. O. P. Q. R. S. T. U. V. Description Letter re: Right -of -Way Easement 2019-** January 29, 2019 lam- ewZ#ey p Cla WJWro etts4 j : w U 3 -6 -3f -5-0n76 IS° C NI nth Mertate isatoffrest4444615 G-redsyCD ot/31 RE: Right of Way No, 2422, Book 24, recorded on September 10, 1981 with the Weld County, Colorado Clerk and Recorder at Reception No. 1868639 (the "Easement") Mr. Gathman: Public Service Company of Colorado, a Colorado corporation ("PSCo"), as grantee and holder of the Easement, and WJW Properties, LLC ("WJW"), as owner of the underlying property, hereby notify the County of Weld, Colorado that PSCo and WJW have agreed on the size and location of the expanded Easement area which will accommodate PSCo's additional and upgraded utility facilities for its Ennis substation. PSCo is in the process of obtaining an ALTA survey for the expanded substation Easement area, which is depicted as that portion west of the Section line shown on Exhibit A. Upon PSCo's receipt of the ALTA survey, the parties will amend the Easement, which shall be recorded with the Weld County Clerk and Recorder. Very truly yours, . tic_ Name: Manager, Siting and Land Rights Title: PublierSentice Company of Colorado Public Service Company of Colorado aGI Accepted and agreed to this I day of id eibrIArik , 2019 WJW PROPERTIES, LLC: _.-. By: b Pod {J Name: (. �-- d- t f i) Title: t ... 4��.�Pta saw.. diraj0l.:i21746266. l ,doc A' t to ' 1 z: ce.f l flet4SPrtte-A.1 jet ta-tif- Pcs1 L3/4„,;‘_ ` • . a iOi 0 Alice! Energy® Questions and Answers Jeff Walker — Siting & Land Rights 303.571.7451 jeffrey.a.walkerxcelenergy.com 11 REQUEST: • Minor Amendment to SUP -439 upgrade/expand the existing substation site in the A (Agricultural) Zone District. Minor Amendment Approval Criteria 1.The proposed changes will be compatible with existing and allowed uses in the surrounding area and be in harmony with the neighborhood. Remote location Near solid waste disposal and landfill facilities S ubstation is outside of USR-1285 operations area S upports existing and anticipated oil and gas operations 2. The proposed changes are consistent with the Comprehensive Plan pursuant to Chapter 22 of this Code. S ec 22-2-20.G.2.A Policy 7.2 — Located in remote area • Serves oil and gas development • Will not encroach upon adjacent landfill operations S ec 22-5-100 — Supports safe production of oil and gas S ec 22-6-20 — Supports county economic development goals 7 ,eo 79 Xcel Energy Minor Amendment Approval Criteria 3. The proposed changes will not result in a substantial adverse impact on other property in the vicinity of the subject property. Comments from referral agencies have been addressed through conditions of approval and development standards The ultimate build -out will occupy 6.8 acres (including 1.72 -acre secured area) within a 436 -acre parcel Provides additional electrical distribution service to existing and potential customers No increase in traffic Expansion of existing substation creates less impact than new substation 4. The recommendations of referral agencies have been considered. Comments from referral agencies have been addressed through conditions of approval and development standards 8 Minor Amendment Approval Criteria 5. The proposed change is not deemed to be a major change. Pre -application meeting held August 9, 2019 Weld County Planning Services, Public Health and Environment, Public Work departments determined modifications are minor in nature 6. The proposed changes must be consistent with the original development standards. The proposed change is consistent with the seven original USR-439 development standards Recommended conditions and development standards reflect updated County codes and policies 9 iiii t`. nti..7 , A::::: rYi y'yirvr .,.cua- fir — _ - 1t-c-rt- r s • a . _ �^.t :.c alyti-0. al"! 1 4 COIDIAIO CDOROINAIF %Shill, NAOR! MORN ZONE Jt�uN 'M.()d! O Eno! 'WI J".OI W'4 l ? I0' C 991112772S cam rAt+•>tl _ U'A9lry1t7• !knots r4''OR - • .:OC,j r 15,07 w rw von •1••t as eat meow .wq w 11 EM) Not Rad .i.r,r. mow . M wM •q• on Ay► ywJ w MUMS, Mom �. M Sea la we NV I1I$ DRAWING 1YAS PREPARED BY POWER L NUINLERS. INC. fOH A SPECtf IC PROJECT TAKING IMO CONSIDERATION THE SPECIFIC AKO UNROOF REQUIREMENTS OF THE PROJECT REUSE Of THIS DRAWING OR ASY INFORMATION CONTAINED IN THIS DRAWING FOR ANY PURPOSE IS PROHIBITED UNLESS WRITTEN PERMISSION FROM BOTH POKIER AND POWER'S CLIENT IS GRANTED 6 n COL* TY AD *0* +l PG JJr 1•s► H 9S SEE R2 OOO C r PNorossc 1 u ACHE PARCEL us is sOuNDA*v z 1- Ylt::..yT•R'11JW 1— or at PG rJ' ?�PaKtak EASE akr ME C Mi *.fl1e SW ft O9.IMItiV a for PRCPrr,4EO t[NCE .+to oSEC 4' ACAt PARCH inn Sr vs Inv 11GPo .EO BOt ,IARY POS A ;3'W • 24 i 377U2 At S sr stet ORN OW 11 '14.10 1 vla1s 11n4 j4 REv REVISIONS GATE DRN DSQN CKO APP0 REFERENCE DRAWINGS SCALE: 1- • w FOR -2b34 DWG ONLY POWER ENGINEERS ACK INE ROY C. Z 4111424 IRON EAll***0N POOPERfr OIRE6111►110M ROH NUMBER RE'J D DRAWING NUMBER unit 1 ()XcelEnergyK $ 00.33'46 a TS 0 * 1/4 CON SEC •N 14. PCINT os I0 .1 r.E41NNIN4 IV ,\ ►ool T of � 1* wsr..kt Mt 1. 46 14' • t40M' 1 Adflt 1 326t3 OO.3t'O7-E \\\ ♦2SO• .I•4O•3i 't0� R•9366' 1.•21$OS' N S9.4S'37 64.00' N OO.31'Os"E 32DO' 1 CERTIFICATE OF SURVEY t HERESY CERTIiv THAT THt1 SLANEY WAS MADE Uh9EN bit SuPERVISION AND THAT THE PLAT ►(RtO• ACCURATELY NIPAISENT$ SAID SURvty ANC THAT THE SAME ARE CORRECT VD THE BEST Of Mr II'O*LEOLE AND *ELIEO GATE RfISTERtO LAND tL NUYSER 727S COORS COAL MINE SUBSTATION STATE LAND SECTION 36 T. 3 N. R. 64 W, PUBLIC SERVICE CO. OF COLORADO DENVER COLORADO ENGINEERING DIVISION ELECTRIC ENGINEERING LAND DEPARTMENT 9 7 310 DTMI. ST KA.J. A P u a o11.115 b � 00' a p � .. ... yai 5 1'• 400 *00 Zvi 0OC. 94477 O. • 90.14' l0' R • 7000 L • 110 24' T• 7019' SW lin SEC. 36 ERs COAL MINE SOuTN SOuNtA*Y UNE A• tl'I3'2S T• IGO.OO' R• 337 Ss' L• 47 74' 1 1 'Nat C 1 1 1 itn Waal int 1344 SOS?' ( I t4 COR. SEC SS /PARCEL A CONTAINS 0 50 ACRES • PARCEL S CONTAINS 0 44 ACRES • PARCEL C CONTAINS 0 74 ACRES • PARCEL D COMTA.NS 0 014 ACRES • CONTAINS TOTAL I 774 ACRES • *on 110A0 ENNIS SUBSTATION Xcel Energy* F' f r'Yq b �l.. ��` ,� ?'J -'i N r Lid l ♦�+ �; r =n l abw'�.��. dMY~�ir..t YL 6f"'�CTf :. Ennis Substation Distribution Project Use By Special Review Minor Amendment Weld County Board of County Commissioners Project Scope • Add one 50MVA distribution transformer to support 25MW load Existing substation has maximum distribution of 9MW Oil and gas operations • Existing substation area is 0.58 acres • Proposed parcel: 8.1 acres total • 6.76 acres — easement area on subject parcel 1.72 acres enclosed • 1.34 acres drainage easement on adjacent parcel Improved substation construction and operation standards • Existing easement allows for substation expansion Negotiating with landowners for fee and drainage easement • No traffic increase • Subdivision Exemption application will be submitted soon after approval 2 0 Xcel Energyn Hello