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Home My WebLink About20191257.tiffMEMORANDUM TO: Diana Aungst, Planning Services FROM: Hayley Balzano, Public Works DATE: December 12, 2018 SUBJECT: USR18-0119 EWS #8 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 Site Specific Development Plan and Use by Special Review Permit for Mineral Resource Development Facilities, Oil and Gas Support and Service (Class II Oilfield Waste Disposal Facility - Saltwater Injection Facility) in the A (Agricultural) Zone District This project is north of and adjacent to CR 100 and is east of CR 95. Parcel number 046525000003. Access is from CR 100. ACCESS Weld County Public Works has reviewed the application materials related to access, and application material indicates that the applicant is proposing an access point approx. 3200 feet east of County Road 95. The applicant shall ensure that the new proposed access location meets spacing requirements for a collector roadway, which is 330 feet between access points. 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 100 is a gravel road and is designated on the Weld County Functional Classification Map (Code Ordinance 2017-01) as a(n) collector road, which requires 80 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. County Road 95 is a section line road. 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 the 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. 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. County Road 97 is a section line road. 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 the 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. 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. 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/d epartments/publicworks/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 Latest ADT on CR 100 counted 67 vpd with 48% trucks. The 85th percentile speed is 52 mph. The traffic information submitted with the application materials indicated that there will be approximately 20 passenger vehicle daily roundtrips and up to 20 semi -truck daily roundtrips. The intention of the applicant is that the majority of water will be pumped to the facility as opposed to trucking water. The proposed 20 semi -trucks per day is in case of overflow and is not proposed to be a daily use. 50% of the traffic will be going to the west to County Road 89 and 50% of the traffic will be going to the east to County Road 390. TRACKING CONTROL POLICY Tracking control is required to prevent tracking from the site onto public roadways. Per Chapter 12, Appendix 12A.10.1, access onto gravel roads for 20 semi -truck round trips daily requires recycled asphalt or road base on all driving surfaces. 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. A variance request for alternatives to the tracking control requirement can be submitted to Public Works for review and consideration. IMPROVEMENTS AND ROAD MAINTENANCE AGREEMENT Public Works is requiring an Improvements and Road Maintenance Agreement to address specified haul routes, dust control, the responsibility of damage to the County Road and potential future triggered off -site improvements. Improvements/Road Maintenance Agreement: An example agreement is available at: https://www.weldgov.com/UserFiles/Servers/Server 6/File/Departments/Public%20Works/DevelopmentR eview/sprusr.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. 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. An Improvements and Road Maintenance Agreement is required for potential future off -site improvements at this location. Road maintenance includes, but is not limited to, dust control and damage repair to specified haul routes. The Agreement shall include provisions addressing engineering requirements, submission of collateral, and testing and approval of completed improvements. (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 plan shall be amended to delineate the following: 1. County Road 100 is a gravel road and is designated on the Weld County Functional Classification Map as a collector road which requires 80 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) 2. County Road 95 Section Line is shown to have 30 feet of 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 95 Section Line Right -Of - Way, not County maintained." All setbacks shall be measured from the edge of right-of-way. (Department of Public Works) 3. County Road 97 Section Line is shown to have 30 feet of 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 97 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. 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) 5. Show and label the approved tracking control on the site plan. (Department of Public Works) 6. Show and label the entrance gate if applicable. 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. (Department of Public Works) 7. 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) 8. Show and label the drainage flow arrows. (Department of Public Works) 9. 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. The approved access and tracking control shall be constructed prior to on -site construction. This site requires road base or recycled asphalt on all driving surfaces for tracking control. (Department of Public Works) B. 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. The Property Owner shall comply with all requirements provided in the executed Improvements Agreement. (Department of Public Works) 6. The Improvements Agreement for this site may be reviewed on an annual basis, including a site visit and possible updates. (Department of Public Works) 7. The historical flow patterns and runoff amounts on the site will be maintained. (Department of Public Works) 8. Weld County is not responsible for the maintenance of onsite drainage related features. (Department of Public Works) DRAINAGE REPORT REVIEW CHECKLIST Project Name: USR18-0119 EWS #8 The purpose of this checklist is to provide the applicant's Engineer a basic list of items that County Staff will review in regards to a drainage report. The drainage design shall meet the requirements of the Weld County Code and commonly accepted engineering practices and methodologies. A detention pond design (or other stormwater mitigation design) is appropriate for projects which have a potential to adversely affect downstream neighbors and public rights -of -way from changes in stormwater runoff as a result of the development project. The design engineer's role is to ensure adjacent property owners are not adversely affected by stormwater runoff created by development of the applicant's property. REPORT (El = complete, O = required) ©Stamped by PE, scanned electronic PDF acceptable ❑Certification of Compliance ❑Variance request, if applicable ©Description/Scope of Work ©Number of acres for the site ❑Methodologies used for drainage report & analysis Design Parameters ❑Design storm ❑Release rate ©URBANIZING or NON -URBANIZING ❑Overall post construction site imperviousness ©Soils types IX Discuss how the offsite drainage is being routed ❑Conclusion statement must also include the following: ©Indicate that the historical flow patterns and run-off amounts will be maintained in such a manner that it will reasonably preserve the natural character of the area and prevent property damage of the type generally attributed to run-off rate and velocity increases, diversions, concentration and/or unplanned ponding of storm run-off for the 100 -year storm. ©How the project impacts are mitigated. Construction Drawings ❑Drawings stamped by PE, (scanned electronic PDF preferred) Drainage facilities ❑Outlet details ❑Spillway Maintenance Plan ©Frequency of onsite inspections ©Repairs, if needed ©Cleaning of sediment and debris from drainage facilities ©Vegetation maintenance ❑Include manufacturer maintenance specifications, if applicable Comments: 1. Clarifying Question: Is the development completely within the Type C soils? The RECX/SUBX has not been submitted yet so it is unclear to me where on the parent parcel the development is occurring. 2. Clarifying Question: Page 1 states that mo-st of the developed runoff will be gathered in the pond. Please explain. 3. Is swale A -A riprap lined? USDCM figure 8-22 places it on the line for riprap requirements. 4/11/2018 Atii Weld County Department of Public Works/ Development Review 1111 H Street, Greeley, CO 80631 I Ph: 970-400-3750 I Fax: 970-304-6497 www.weldgov.com/departments/public works/development_ review/ DRAINAGE REPORT REVIEW CHECKLIST 4. The Detention Volume by the Modified FAA Method table has different values from the Calculation of Peak Runoff Using the Rational Method worksheet. (Time of concentration 12.8 vs 15. C values are 2008 vs. 2017 resulting in Inflow Peak Runoff being different) Please use the 2008 C values in the UD-Rational worksheet in user override values for consistency. Why was a different time of concentration chosen? 5. Please include spillway calculations. 6. Drawing C5 - font is odd in a few locations including spillway details. 7. At the outlet the velocity of release is 7 fps. Will this area be protected with riprap? This is the maximum velocity allowed per USDCM. 8. Once the revised design and drainage report have been submitted. the County may provide additional comments in addition to the ones listed above, Depending on the complexity of the changes made, a full 28 -day review period may be required. 9. Please provide a written response on how the above comments have been addressed when resubmitting the drainage report. Thank -you 4/11/2018 ut Weld County Department of Public Works! Development Review 1111 H Street, Greeley, CO 80631 I Ph: 970-400-3750 I Fax: 970-304-6497 www.weldgov.com/departments/public works/development_ review/ WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT 1555 North 17th Avenue, Greeley, CO 80631 www,weldhealth,org Memorandum To: Diana Aungst From: Ben Frissell, Environmental Health Services Date: December 3, 2018 Re: USR18-0119 Class II Injection Well EWS Environmental Health Services has reviewed this proposal for a Site Specific Development Plan and Use by Special Review Permit for Mineral Resource Development Facilities, Oil and Gas Support and Service (Class II Oilfield Waste Disposal Facility - Saltwater Injection Facility) in the A (Agricultural) Zone District There will be up to 10 full time employees that utilize the site with some additional third - party truck drivers and/or contractors. Water will be provided by a proposed commercial well and the site will be serviced by a proposed engineered on -site wastewater treatment system. No recycling operations will occur onsite. We recommend that the following requirements be incorporated into the permit as conditions that must be met prior to the acceptance of waste: 1 The facility shall submit a Groundwater Monitoring Plan for review and approval to the Weld County Department of Public Health and Environment. 2. The facility shall submit design plans of the offload pad area which should incorporate a sub -sump monitoring point and synthetic liner for review and approval to the Weld County Department of Public Health and Environment. Environmental Health has no objections to the proposal; however, we recommend that the following requirements be incorporated into the permit as development standards: 1. No disposal of waste, other than Class II, as currently defined by the Environmental Protection Agency, is permitted. Any changes from the approved Class II use will require an amendment to this Use by Special Review Permit. 2. 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. Health Administration Vital Records Icic: 9/U 304 6410 Fax: 9/0-304-6412 Public Health & Clinical Services Icic: 9/0 304 6420 Fax: 9,10-301-M 15 Environmental Health Communication, Services Education & Planning Tele:970-304-6415 Tele:970-304-6470 Fux. 970-304-6411 Fax. 970-304-5452 Emergency Preparedness 8 Response Te le: 970-304-6470 Fax: 970-304-6452 Public Health 3. 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. 4. Waste materials shall be handled, stored, and disposed in a manner that controls fugitive dust, blowing debris, and other potential nuisance conditions. The facility shall operate in accordance with Chapter 14, Article 1 of the Weld County Code. 5. 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. 6. The applicant shall submit an Air Pollution Emission Notice (A.P.E.N.) and Emissions Permit Application and obtain a permit from the Air Pollution Control Division, Colorado Department of Public Health and Environment, as applicable. 7. Adequate drinking, handwashing and toilet facilities shall be provided for employees and patrons of the facility, at all times. As employees or contractors are on site for less than 2 consecutive hours a day portable toilets and bottled water are acceptable. Records of maintenance and proper disposal for portable toilets shall be retained on a quarterly basis and available for review by the Weld County Department of Public Health and Environment. Portable toilets shall be serviced by a cleaner licensed in Weld County and shall contain hand sanitizers. 8. Any septic system located on the property must comply with all provisions of the Weld County Code, pertaining to On -site Wastewater Treatment Systems. A permanent, adequate water supply shall be provided for drinking and sanitary purposes. 9. All potentially hazardous chemicals on -site must be handled in a safe manner in accordance with product labeling. All chemicals must be stored secure, on an impervious surface, and in accordance with manufacturer's recommendations. 10. Secondary containment shall be constructed around tanks to provide containment for the largest single tank and sufficient freeboard to contain precipitation. Secondary containment shall be sufficiently impervious to contain any spilled or released material. Secondary containment devices shall be inspected at regular intervals and maintained in good condition. All secondary containment will comply with the Colorado Oil and Gas Conservation (COGCC) Commission Rules and/or the provisions of the State Underground and Above Ground Storage Tank Regulations. 11.A leak detection system shall be designed and installed beneath concrete unloading pad(s), piping, and sump(s). The unloading pad shall be kept in good condition. 12.As applicable, a Spill Prevention, Control and Countermeasure Plan, prepared in accordance with the applicable provisions of 40 CFR, Part 112, shall be available. 13. The facility shall be constructed and operated to ensure that contamination of soil and groundwater does not occur. 14.The facility shall comply with the accepted Groundwater Monitoring Plan. 15. Analytical waste data and environmental monitoring data shall be made available to Weld County Department of Health and Environment upon request. The Weld County Department of Health and Environment reserves the right to require additional monitoring. 16. Any contaminated soils on the facility shall be removed, treated or disposed of in accordance with all applicable rules and regulations. All spills will be reported to local, state and federal agencies in accordance with all state and federal regulations. 17. All stormwater, which has come into contact with waste materials on the site, shall be confined on the site. In the event the storm water is not adequately controlled on the site, upon written notification from the WCDPHE or CDPHE, a comprehensive site -wide Stormwater Plan shall be developed and implemented. The plan must be approved, in writing by the WCDPHE or CDPHE, prior to implementation. 18.The applicant shall obtain a Colorado Discharge Permit System or CDPS permit from the Colorado Department of Public Health and Environment (CDPHE), Water Quality Control Division, as applicable. 19. The facility shall adhere to the maximum permissible noise levels allowed in the Commercial Zone as set forth in Section 25-12-103, C.R.S. 20. WCDPHE will be notified prior to the closure of the facility. Upon site closure, the facility will remove all wastes from the site and decontaminate all equipment, tanks, and secondary containment. All wastes removed from the site during closure activities will be disposed of off -site, in accordance with all state and federal rules and regulations and with Weld County Code. Documentation of closure activities will be provided to WCDPHE. 21. The facility shall notify the County of any revocation and/or suspension of any State issued permit. 22.The applicant shall notify the County upon receipt of any compliance advisory or other notice of non-compliance of a State issues permit, and of the outcome or disposition of any such compliance advisory or other notice of non-compliance. 23. The operation shall comply with all applicable rules and regulations of State and Federal agencies and the Weld County Code. Hello