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Home My WebLink About20153650.tiff SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW (USR) APPLICATION FOR PLANNING DEPARTMENT USE DATE RECEIVED: RECEIPT # /AMOUNT # is CASE # ASSIGNED: APPLICATION RECEIVED BY PLANNER ASSIGNED: Parcel Number 0 9 5 7 _ 1 9 _ 0 _ 0 0 _ 0 4 9 (12 digit number - found on Tax I.D. information, obtainable at the Weld County Assessor's Office, or www.co.weld.co.us) Legal Description PT E2/PT NW4 LOT A RE-1247 , Section 19 , Township 05 North, Range 67 West Zone District: AG , Total Acreage: 23 +/- , Flood Plain: N/A , Geological Hazard: N/A Airport Overlay District: N/A FEE OWNER(S) OF THE PROPERTY: Name: W3 Legacy, LLC Work Phone # 970-441 -8212 Home Phone # Email cweimer@son-haul.net Address: P.O. Box 1449 Address: City/State/Zip Code Fort Morgan, CO 80701 Name: N/A Work Phone # Home Phone # Email Address: Address: City/State/Zip Code Name. N/A 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: AGPROfessionals (Tim Naylor) Work Phone # 970-535-9318 Home Phone # Email tnaylor@agpros.com Address: 3050 67th Avenue, Suite 200 Address: City/State/Zip Code Greeley, CO 80634 PROPOSED USE: The property owner is requesting a Use by Special Review to use this site for a trucking and commerical construction business in the AG zone. The business is requesting to have a rail spur from Great Western Railroad to receive flyash rail shipments. The site will have parking areas for trucks and heavy construction equipment. 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 wners must b cluded ith the application. If a corporation is the fee owner, notarized evidence must be incl ed indi tin ( t the ' natory ha to legal authority to sign for the corporation. • Signature] ne ' or Authoriz d Agent Date Signature: Owner or Authorized Agent Date AGPROfessionas Dr:1'EI.OIn:Rs OF AGRICtEIJ1HW April 23, 2015 To Whom It May Concern: W3 Legacy, LLC is contracted with AGPROfessionals for all permitting, planning, engineering and regulatory work relating to the USR and Recorded Exemption Applications for Lot A — RE1247. AGPROfessionals is authorized to represent and request the release of all records necessary on behalf of W3 Legacy, LLC. We respectfully request that all correspondence be directed to AGPROfessionals. Sincerely, C /S `C s Weimer Date ENGINEERING, PLANNING, CONSULTING & REAL ESTATE 3050 67d' Avenue • Suite 200 • Greeley, CO 80634 970.535.9318 / office • 970.535.9854 / fax ■ www.agpros.com SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW (USR) QUESTIONNAIRE W3 Legacy, LLC The following questions are to be answered and submitted as part of the USR application. If a question does not pertain to your use, please respond with "not applicable", with an explanation as to why the question is not applicable. 1 . Explain, in detail, the proposed use of the property. The property owner is requesting a Use by Special Review to allow the use of the property for a trucking and commercial construction business. The business operates its main business in Morgan County and will use this site for operations in Weld County. The company will have approximately twenty (20) semi trucks and trailers used to haul flyash for soil stabilization for construction projects. The facility will allow parking for heavy construction equipment on site when it is not mobilized to offsite projects. The business will have a shop and office for both the trucking and construction businesses. The facility is proposing to place a rail spur at the site to receive flyash by rail then ship it by truck to the construction site. The rail spur will be located within the Omnitrax railroad easement at the request of the railroad. The facility will have a fueling station. The applicant will acquire the appropriate permits and prepare a Spill Prevention, Control and Countermeasure plan according to State regulations. The facility will apply for all appropriate air permits for the storage of flyash. Currently the site is being used as a cattle feeding operation. The feedlot will not be operated after approval of the USR. All pens and appurtenances related to the feedlot will be removed over time. No sign is proposed at this time. If at such time as a sign is required, it will meet the sign requirements as stated in the Weld County Code. The location of the light poles in the parking areas are shown on the plat. All lights will be shielded and directed down as required in the Weld County Code. 2. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 22 (Comprehensive Plan). This USR application has been prepared utilizing the process outlined in the Weld County Code and Procedural Guides. The Guiding Principles of the Comprehensive Plan found in Section 22-1-120 states, "Land use changes must afford flexibility based on the specific location and the particular circumstances encountered within the locality. It is also important to weigh the cumulative impacts that specific land use changes will have. " This proposal is respectful of surrounding uses. The surrounding area has multiple uses including trucking companies, rural residential, agriculture and also businesses within Use By Special Review W3 Legacy, LLC Page 2 of 4 the Johnstown area. The site is also adjacent to Weld County Commercial and Industrial Zoned properties. The application is consistent with Section 22-2-20 G. A. Goal 7. "County land use regulations should protect the individual property owner's right to request a land use change. 2. A.Policy 7.2. 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 site is in an area that can support the proposed use. The site is adjacent to railroads which would allow for a railspur. The site is also located within 2 miles of Colorado Hwy 34. 3. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 23 (Zoning) and the zone district in which it is located. The proposal is for a trucking and commercial construction business in the Agricultural Zone. This proposal is allowed in the Ag Zone as a Use by Special Review as called in Chapter 23, 23-3-40. S. Any use permitted as a Use by Right, an ACCESSORY USE, or a Use by Special Review in the COMMERCIAL or industrial zone districts, provided that the property is not a Lot in an approved or recorded subdivision plat or lots parts of a map or plan filed prior to adoption of any regulations controlling subdivisions. PUD development proposals shall not be permitted to use the special review permit process to develop. This facility will be established and operated in a manner that is compatible with existing and planned land uses in the neighborhood. Currently there are similar uses in the area. Adequate provision has been made to protect the health, safety and welfare of the inhabitants of the neighborhood and the County. Operation Standards as .found in Section 23-2-260 of the Weld County Code were consulted in preparing this application. 4. What types of uses surround the site? Explain how the proposed use is consistent and compatible with surrounding land uses. The surrounding area has multiple uses including construction business, shop, office, production agriculture, residential uses, recreational facilities, gravel mining and a natural gas facility. 5. Describe, in detail, the following: a. Number of people will use this site? It is proposed that approximately up to 20 drivers and office personnel will use this site. b. Number of employees proposed to be employed at this site? Use By Special Rcvicw W3 Legacy, LLC Page 3 of 4 It is proposed that approximately up to 20 drivers will use this site. Drivers will arrive at the site and leave in semi tractor trailers for the day. The drivers will be on site for less than 2 hours at a time. Two to six (2-6) office personnel will be onsite as building construction allows. c. Hours of operation? The facility is projected to be operational Monday-Saturday. Standard hours of operation are proposed to be 6:00 a. m. to 8:00 p. m. However, trucks may arrive and depart 24 hours per day, if necessary. d. Type and number structures to be erected (built) on this site? A shop/office building is proposed to be built on this site. Proposed building will be approximately 50 ' x 100 '. A modular office is also proposed. A fueling station/tank will be located on site as well as several flyash silos. e. What type and number of animals, if any, will be on this site? There will be no animals on this site. All feedlot pens will be removed over time. f. Kind of vehicles (type, size, weight) that will access this site and how often? 20 Semi Trucks and Trailers (approximately 20 loads per day) Construction Equipment Scrapers Employee vehicles (approximately 20 per day) g. Who will provide fire protection to the site? Johnstown Fire Protection District h. What is the water source on the property? (Both domestic and irrigation) Little Thompson Water District water tap number 446. This tap is 1.5 inches. i. Sewage disposal system on the property? (Existing and proposed). Portable Toilets will be used at this site. Permitted Septic systems will be installed when buildings are built. j . If storage or warehousing is proposed, what type of items will be stored? Construction Equipment Tools Semi Trucks and Trailers Flyash Silo(s) Use By Special Review W3 Legacy, LLC Page 4 of 4 6. Explain the proposed landscaping for the site. The landscaping shall be separately submitted as a landscape plan map as part of the application submittal. No additional landscaping is proposed. 7. Explain any proposed reclamation procedures when termination of the Use by Special Review activity occurs. Reclamation procedures include compliance with applicable regulations and operated as a commercial construction and trucking facility. Should the facility be permanently discontinued, it would be marketed under applicable county planning and zoning regulations to its permitted use. 8. Explain how the storm water drainage will be handled on the site. Stormwater drains toward the southeast corner of the property. A Water Quality Feature has been designed and the drainage narrative is included with this application. 9. Explain how long it will take to construct this site and when construction and landscaping is scheduled to begin. Construction of buildings will commence upon final approval of the Use by Special Review permit when economic conditions allow. 10. Explain where storage and/or stockpile of wastes will occur on this site. There will be no storage of wastes on this site. Any wastes produced from employees will be contained in a dumpster and hauled off regularly by a local trash service such as Northern Colorado Disposal as described in the Waste Management Plan. 11 . Please list all proposed on-site and off-site improvements associated with the use (example: landscaping, fencing, drainage, turn lanes, etc.) and a timeline of when you will have each one of the improvements completed. There are no off-site improvements planned for this project. Construction of storage buildings will commence upon.final approval of the Use by Special Review permit when economic conditions allow. AGPROfessionals DEVELOPERS OF AGRICULTURE W3 Legacy, LLC Traffic Narrative Traffic Narrative: This document outlines the projected traffic associated with a proposed USR permit for a trucking and commercial construction business. The site is located south of Weld County Road 56 west of Weld County Road 15. The site was previously used as a feedlot facility. Access to the site is on existing private gravel road. Typical vehicles accessing this site include employee vehicles and semi trucks. The following numbers are anticipated upon full build-out of the site: Semi-truck and trailer trucks: approximately 20 round trips per day Employee vehicles: approximately 26 per day The ongoing use of the site and associated traffic is consistent with the existing uses on surrounding properties. Traffic flow is anticipated to head west on Weld County Road 56 to Weld County Road 13 then North to Highway 34. ENGINEERING, PLANNING, CONSULTING & REAL ESTATE 3050 67th Avenue • Suite 200 • Greeley, CO 80634 970.535.9318 / office • 970.535.9854 / fax • www.agpros.com AA AGPROfessionals ■ DEVELOPERS OF AGRICUI TURD W3 Legacy, LLC Nuisance Management Plan Dust Abatement Plan Existing gravel and/or road base will be used at the entrance and on internal roadways to control dust onsite. Should it be necessary to mitigate for excessive dust, a water tanker truck or portable sprinkling system may be used for moisture control on roadways. Waste Management Plan There will be no storage of wastes on this site. Any wastes produced from employees will be contained in a dumpster and hauled off regularly by a sanitation service such as Waste Management of Northern Colorado, 40950 Weld County Road 25, Ault, CO 80610, (97O) 482-6319. No maintenance of vehicles is anticipated at this site. No disposal of oil, fluids, tires, headlights or chemicals will be needed . The building will be used to store equipment, such as vehicles, air compressor, ladders, sandpaper, paper towels, trash cans, and construction tools. ENGINEERING, PLANNING, CONSULTING & REAL ESTATE 3050 67th Avenue • Suite 200 • Greeley, CO 80634 970.535.9318 / office • 970.535.9854 / fax • www.agpros.com FOR COMMERCIAL SITES, PLEASE COMPLETE THE FOLLOWING INFORMATION BUSINESS EMERGENCY INFORMATION: Business Name: W3 Legacy, LLC Phone: 970-441-8212 Address: P.O. Box 1449 City, ST, Zip: Fort Morgan, CO 80701 Business Owner: Chris Weimer Phone: 970-441-8212 Home Address: City, ST, Zip: List three persons in the order to be called in the event of an emergency: NAME TITLE ADDRESS PHONE Business Hours: 6:00 a.m. to 8:00 p.m. Days: Monday - Saturday Type of Alarm: None Burglar Holdup Fire Silent Audible Name and address of Alarm Company: Location of Safe: MISCELLANEOUS INFORMATION: Number of entry/exit doors in this building: Location(s): Is alcohol stored in building? Location(s): Are drugs stored in building? Location(s): Are weapons stored in building? Location(s): The following programs are offere a public service of the Weld Coun riff's Office. Please indicate the programs of interest. Physical Security Check _Crime Prevention Presentation UTILITY SHUT OFF LOCATIONS: Main Electrical: Gas Shut Off: Exterior Water Shutoff: Interior Water Shutoff: Rafaela Martinez From: Tim Naylor <tnaylor@agpros.com> Sent: Tuesday, October 27, 2015 2:00 PM To: Chris Gathman Subject: W3 Legacy Chris In response to the Email below . How much fly- ash will be stored on site at any given time ? Scenario 1 5 vertical silos with a total capacity of approximately 460 tons of fly ash . The ash would be trucked to the location . Scenario 2 5 vertical silos with a total capacity of approximately 460 tons of fly ash , we would also utilize the 2 grain silos on location with an estimated storage capacity of 600 ton , total onsite storage capacity is 1660 tons . The railroad spur would be used to haul to the facility , the spur could accommodate eight cars each holding 100 ton of fly ash . How will the fly- ash be stored ? ( open piles , silos , or ? ? ) Enclosed silos How will the fly- ash be transferred from the railcars to the storage ? (front loaders , below grade hoppers , pneumatic transfer, or ? ? ? ) Fully enclosed pneumatic transfer How will the fly- ash be transferred from the storage area to the trucks for shipment ? Fully enclosed pneumatic transfer How much fly ash will each truck contain ? (Available information suggests about 1500 cubic ft . ) Up to 55 , 000 lbs How often will rail cars arrive , and how many will arrive at once ? What time of day or night ? We would anticipate 8 cars per transfer . The rail system controls the delivery schedule . The application states that the trucks may leave at any time of day or night , although the operating hours are more restrictive . Does this mean that the applicant will be doing loading outside of the operation hours ? The majority of the loading and trucking will be during normal business hours but trucks may return later depending on job site locations . What is the source of the fly - ash ? (Since it contains the same ( potentially toxic ) impurities as the coal from which it comes , the source location is important to assess the risk of chemical contamination of the neighborhoods ) 1 The source depends on market conditions . The EPA has determined that fly ash is non - hazardous . The facility uses fully enclosed pneumatic systems and is regulated by Colorado Department of Public Health & Environment ( CDPHE ) to set the emission limits , throughput limits , and emission factors for a facility . The facility will operate in compliance with applicable CDPHE air permits . Tim Naylor AGPROfessionals 3050 67th Avenue, Suite 200 Greeley, CO 80634 970 - 535 - 9318 office 970- 535 -9854 fax ( 303 ) 870- 0013 mobile www . agpros . com Original Message From : Chris Gathman [ mailto : cgathman@co . weld . co . us ] Sent : Wednesday, October 07, 2015 7 : 23 AM To : Tim Naylor; Lauren Light ; Wayne Howard ; Kristine Ranslem Subject : FW : USR15 - 0040, W3 Legacy LLC Chris Gathman Planner III Weld County Department of Planning Services 1555 N . 17th Avenue, Greeley CO . 80631 Ph : ( 970 ) 353 - 6100 ext . 3537 Fax : (970 ) 304 - 6498 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 . Original Message From : Dave Kisker [ mailto : dave . kisker@gmail . com ] Sent : Tuesday, October 06 , 2015 5 : 46 PM To : Chris Gathman Subject : USR15 - 0040, W3 Legacy LLC Chris , On behalf of CLR - 34 Neighborhoods Assn . , we have been reviewing the Agpro USR application (USR15 -0040 ) and have some concerns about this proposed project . The actual impact of this operation is not very clear because there are a few VERY IMPORTANT aspects of this proposed operation that are missing from the application . To start , here are 2 some key questions for the applicant . Generally, these all relate to the procedural issues relating to the flyash handling . Because of the dust that may be generated , and the potential health impacts , we wish to determine how severe this risk is likely to be . How much fly- ash will be stored on site at any given time ? How will the fly - ash be stored ? ( open piles , silos , or ? ? ) How will the fly- ash be transferred from the railcars to to the storage ? (front loaders , below grade hoppers , pneumatic transfer, or ? ? ? ) How will the fly- ash be transferred from the storage area to the trucks for shipment ? How much fly ash will each truck contain ? (Available information suggests about 1500 cubic ft . ) How often will rail cars arrive, and how many will arrive at once ? What time of day or night ? The application states that the trucks may leave at any time of day or night , although the operating hours are more restrictive . Does this mean that the applicant will be doing loading outside of the operation hours ? What is the source of the fly- ash ? (Since it contains the same ( potentially toxic ) impurities as the coal from which it comes , the source location is important to assess the risk of chemical contamination of the neighborhoods ) We would appreciate it if you might be able to assist the surrounding property owners in obtaining the answers to these questions . It ' s possible that some of this has already been discussed , but was not included in the application . ( However, since that requirement is for a DETAILED description of the use , it would seem appropriate that it be included . ) Thanks for your help, Dave Kisker President , CLR- 34 Neighborhoods Assn . Tim Naylor AG PROfessionals 3050 67th Avenue, Suite 200 Greeley, CO 80634 970-535-9318 office 970-535-9854 fax (303) 870-0013 mobile www.agpros.com i■ AGPROfessionals ■ . . . . , 3 Drainage Narrative for W3 Legacy, LLC Weld County, Colorado AA AGPROfessionals ■■ I)1V1':J.0p RS OF AC:RI( .1.11 ;I 1 ! Rl' AGPROfessionals 3050 67th Avenue, Suite 200 Greeley, CO 80634 (970) 535-9318 July 2015 W3 Legacy, LW Contents Contents 2 Introduction 3 Narrative 3 Off-site to On-site Drainage 3 On-site Runoff 3 WQCV Sizing Calculations 3 Certifications 5 Appendices 6 7/16/2015 Drainage Report Page 2 of 6 W3 Legacy, LLC Introduction The purpose of this report is to evaluate the proposed and historical drainage of the development at the W3 Legacy construction materials site. Narrative W3 Legacy, LLC, proposes to construct and operate a construction materials site on land previously used as a feed yard approximately 3 .5 miles west of Greeley, Colorado. The site is located approximately 500 feet south of Koenig Reservoir off Weld County Road 56. It is bounded on the north by the Union Pacific Railroad and to the south by The Great Western Railroad and E. County Road 20C. The property slopes south/southeast at a relative grade of 1 .3% where a Water Quality Control Volume (WQCV) pond will be constructed in the southeast corner of the property. Storm water from this site will be discharged through the concrete spillway and flow approximately 1/2 mile to the southeast to County Road 15, then approximately 'A mile south to the Big Thompson River, then south-southeast approximately 5 miles to the Little Thompson River and, eventually, to the South Platte River. Off-site to On-site Drainage Off-site drainage from up-gradient will enter the site on the north end of the property. This storm water will be primarily from the Union Pacific Railroad Right-of-way and will be routed around the buildings and fuel depot. This water will be collected in the WQCV pond. On-site Runoff All storm water runoff from the approximately 22.5 acres of the site will be collected via drainage swales and routed to the southeast corner of the site to the WQCV Pond. The WQCV pond will be contained by an earthen berm with at least 18 inches of freeboard above the 25-year/24-hour storm level. A concrete spillway will be constructed at the outlet to allow safe passage of flood flows greater than the designed event. The minimum WQCV sizing based on the Urban Storm Design (USD) criteria manual, is based upon the runoff generated by '/2" of rainfall. Storm water flows above this volume are permissible to flow through the pond. WOCV Sizing Calculations The Water Quality Control Volume from the USD criteria manual : WQCV = a(0.91/3 - 1.91/2 + 0.78/) = 1.0(0.91 * 0.553 - 1.19 * 0.552 + 0.78 * 0.55) = 0.220 7/16/2015 Drainage Report Page 3 of 6 W3 Legacy, LLC The imperviousness (I) was determined to be approximately 55%, and the coefficient corresponding to the 40 hour drain time is 1 .0. Required storage volume (V) per the USD criteria manual: v = (WQCV) A = (0.220) * 22.48acre = 0.413acre — ft = 17,989f t3 12 12 More detailed calculations for the WQCV will be completed after the design is finalized as part of the Project grading plan. The pond size may be decreased slightly in order to balance cut and fill amounts, but will still exceed the Urban Storm Drainage Criteria Manual volume required for the WQCV. 7/16/2015 Drainage Report Page 4 of 6 W3 Legacy, LLC Certifications I hereby certify that all portions of this drainage narrative have been performed under the supervision of, reviewed by, or performed by this professional engineer, licensed to practice in Colorado. To the best of my professional knowledge, judgment and belief, these plans meet the provisions of Sec. 24-7- 110. oto Lt6id2 •• / t o • • �,1•*gyp •4• �� • Chad Te Velde, P.E. AGPROfessionals 7/16/2015 Drainage Report Page 5 of 6 W3 Legacy, LLC Appendices A. W3 EXISTING IMPERVIOUSNESS B. W3 PROPOSED IMPERVIOUSNESS C. SUPPORTING DOCUMENTS FOR FEEDLOT IMPERVIOUSNESS 7/16/2015 Drainage Report Page 6 of 6 I L Z9 3 IVI A J iZ 00000 J 3 a 2 d' 2 '! COr1s �, d , So St (I) J cti A O up 0 .— co t/] O SURFACE LEGEND TR 2 w W M O2 O) In h�....._ tai, ,, O o GRAVEUIMPROVED GRAVEL: 522.383 ft2 (40% IMPERVIOUS) F4 ° o Q W o cnf ,„ O FEEDLOT: 418,924 ft2 (60% IMPERVIOUS) L)......4 °' °' 0 o > In LSI Yo -""\ o LO ROOF: 37944 ft2 (90% IMPERVIOUS) o UP 3 J ° 1-1- U U 5 U o W V U Ow 5 M 0 a 5 S 1' SHEET: N PROPOSED SURFACES 0 1 100 SCALE. ," = 100A I ' D C C C f 1 H 1 OF 1 A I _ u I C I Lk I L 1 I r — r_________1 H a f s n g a >7 R a glop 1 g re Vt 4 as Z A- O v) O SURFACE LEGEND c T w M 2 2 ~ ` O ( GRAVEL/IMPROVED GRAVEL: 238,378 ft2 (40% IMPERVIOUS) P4 g O ED p ocnr 0 FEEDLOT: 730,759 ft(60% IMPERVIOUS) LipF _ 2 a c fl o a) inJ W O L 1A0 ( ROOF: 10113 ft2 (90% IMPERVIOUS) co ■■ M c • 3 r 3 J 0 (D % © Nbti L13 Cin Uv 1 8 U o E"4 'I 3 cn re) SHEET: EXISTING SURFACES 0 1 100 iaTmil SCALE: 1' = 100' I 0 I i. I =i I L I I G I 1 OF 1 AGPROfesskionals 1 % 1,i or' �:. 1 � 1 Project Number: 3123-01 Date: 7/16/15 2:45 PM 3050 67th Avenue, Suite 200 Designed By: Agprofessionals Sheet: 1 of 2 Greeley, CO 80634 Checked By: Telephone (970) 535-9318 Subject: W3 EXISTING IMPERVIOUSNESS www.agpros.com = User Entry Solving for the Percent Impervious (I): Description per UDFCD Table RO-3 % Impervious Total SgFt Acres Impervious Gravel Road 40% 238,378 2. 19 Feedlot 60% 730,759 10.07 Roofs 90% 10,113 0.21 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 979,250 ( r 12.46 ' Square Feet Acres Total Impervious Acres 542,908 12 .46 Total Development Acres 979,251 22 .48 Development %I Actual Design I 55% I 1 A. GPROfessi�onals I Project Number: 3123-01 Date: 7/16/15 2:47 PM 3050 67th Avenue, Suite 200 Designed By: Agprofessionals Sheet: 2 of 2 Greeley, CO 80634 Checked By: Telephone (970) 535-9318 Subject: W3 PROPOSED IMPERVIOUSNESS www.agpros.com = User Entry Solving for the Percent Impervious (I): Description per UDFCD Table RO-3 % Impervious Total SqFt Acres Impervious Gravel Road 40% 522,383 4.80 Roofs 90% 37,944 0.78 Feedlot 60% 418,924 5.77 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 None 0% 0.00 979,251 I r 11.35 I Square Feet Acres Total Impervious Acres 494,457 11.35 Total Development Acres 979,251 22.48 Development %I Actual Design I 50% I Table 5-i. Weld County Design Storrn Rainfall Comparison 1-Hour Storm Longmont 1 Greeley2 New Raymer3 1-25 &Tri-Town4 Frequency Depth (in) Depth (in) Depth (in) Depth (in) 2-year (50% chance) 1.02 1.04 0.86 0.98 5-year (20% chance) 1.46 1.49 1.35 1.39 10-year (10% chance) 1.75 i 1.76 1.54 1.68 25-year (4% chance) 2.07 1.80 2.04 50-year (2% chance) 2.42 2.51 2.16 2.37 100-year (1% chance) 2.72 2.78 2.55 2.68 2-Hour Storm Longmont 1 Greeley2 New Raymer3 1-25 &Tri-Town4 Frequency Depth (in) Depth (in) Depth (in) Depth (in) 2-year (50% chance) 1.20 1.16 1.05 1.16 5-year (20% chance) 1.66 1.60 1.55 1.60 10-year (10% chance) 2.00 1.91 1.77 1.91 25-year (4% chance) 2.37 2.10 2.32 50-year (2% chance) 2.74 2.65 2.45 2.67 100-year (1% chance) 3.08 2.99 2.82 3.03 6-Hour Storm Longmont 1 Greeley2 New Raymer3 1-25 &Tri-Town4 Frequency Depth (in) Depth (in) Depth (in) Depth (in) 2-year (50% chance) 1.56 1.38 1.44 1.50 5-year (20% chance) 2.05 1.80 1.95 2.00 10-year (10% chance) 2.47 2.22 2.25 2.35 25-year (4% chance) 2.95 2.58 2.75 2.87 50-year (2% chance) 3.35 2.94 3.05 3.25 100-year (1% chance) 3.77 3.42 3.42 3.70 1. From UDFCD Manual 2. From City of Greeley Manual 3. From NOAA Atlas (nomograph projection) 4. From I-25 and Tri-Town Study, Volume 2, Chapter 2, page 20 5.4.3 Larger Basin Rainfall Methods As noted above, the Rational Method should not be used to determine runoff for basins larger than 160 acres. In areas located in the southwest portion of Weld County and where areas are larger than 160 acres that have drainage characteristics similar to an urban area, the Colorado Urban Hydrograph Procedure (CUHP) is an acceptable model for determining runoff amounts. The CUHP model can be used for basins from 0 to 3,000 acres. The parameter adjustments provided in the runoff chapter of the UDFCD Manual (Volume 1) should be used when dealing with basins that are larger than 160 acres. The CUHP model is not applicable in non-urban areas, including those areas in Weld County that are outside of the Denver metropolitan area. The U.S. Army Corps of Engineers (USACE) HEC-HMS model is more applicable for mixed suburban-agricultural areas. The HEC-HMS model can be used on watersheds and drainage basins larger than 160 acres provided the modeling follows the parameters in the HEC- HMS User's Manual, the HEC-HMS Technical Reference Manual, and the HEC-HMS Application's Guide. WELD COUNTY ENGINEERING & CONSTRUCTION CRITERIA Page 138 Appendix B How Much Runoff Will Come from the Feedlot? Single storm event where: Q = volume of runoff (in) The volume of runoff from a feedlot for a single storm P = rainfall (in) event is commonly estimated using the NRCS Curve CN1 = NRCS 1-day curve number Number method. This method is commonly use to estimate the storage volumes required for design A CN1 of 89 or 90 is commonly used for an unpaved storm events such as a 25-year, 24-hour storm (fig. feedlot, and a CN1 of 97 or 98 is commonly used for a B-1). It is described in the NRCS National Engineering paved feedlot. The volume of rainfall for this applica- Handbook, Part 630, Chapter 10. For the purpose of tion is usually the volume of a 25-year, 24-hour or a 10- estimating the volume of storm runoff from a feedlot, year, 1-hour (fig. B-1) storm event. Estimates of runoff the following equation is solved for Q: for four different surfaces are illustrated in table B-1. [Po.2(( o ) io)]2 CN, @ _ P + 011 1000 _ 10 CN, (1) Table B-1 Volume of runoff in inches associated with an individual storm event for four surfaces based upon equation 1 Surfaces Concrete lot or compacted Earthen feedlot Medium texture Medium texture [ t J d 1t M �, cu ,` S nC S S surface surface cropland grassland ree R (� Rainfall event (in) (CN1 = 98) (CN1 = 90) (CNi = 75) (CN1 = 70) I ,5 • 0 2.0 1.8 1.1 0.4 0.2 = (9d / 2.5 2.3 1.5 0.7 0.5 0 44 `Z ' .,) e z. 5 0 3.0 2.8 2.0 1.0 0.7 , ( 5 'n) . c LI •� v 3.5 3.3 2.4 1.3 1.0 g..40i � l 4.0 3.8 2.9 1.7 1.3 4.5 4.3 3.4 2.1 1.7 1 10O7 f kV re-Ne = � iv Z ..78iA 5.0 4.8 3.9 2.4 2.0 ,n - 2• 5.5 5.3 4.4 2.9 2.4 2--(Lplel - ) 6.0 5.8 4.8 3.3 2.8 lc s \i • - 1oO , } 1) - 1A H? 6.5 6.3 5.3 3.7 3.2 - 1/7211 -2/1, 7.0 7.0 6.8 5.8 4.1 3.6 - 7.5 7.3 6.3 4.6 4.0 I) S• N 1 Nl o (006/ 8.0 7.8 6.8 5.0 4.5 * �/ �� o (June 2006) B-I ec o�,�� Weld County Public Works Dept. s. -4 1111 H Street ACCESS PERMIT ar co P.O. Box 758 ° •.r -4 5 Greeley, CO 80632 APPLICATION FORM �Qc N} O Phone: (970)304-6496 Fax: (970)304-6497 Applicant Property Owner (If different than Applicant) Name Tim Naylor Name W3 Legacy, LLC Company AGPROfessionals Address P.O. Box 1449 Address 3050 67th Avenue, #200 City Fort Morgan State CO Zip 80701 City Greeley State CO Zip 80634 Phone 970-441 -8212 Business Phone 970-535-9318 Fax Fax 970-535-9854 E-mail cweimer@son-haul. net E-mail tnaylor@agpros.com ♦ = Existing Access A= Proposed Access Parcel Location & Sketch The access is on WCR 56 Nearest Intersection: WCR 56 & WCR 15 wat:)( Distance from Intersection 2,221 +1- ft q 1f Parcel Number 095719000049 �' Section/Township/Range 19 / 05 / 67 t u V 3 3 Is there an existing access to the property? OYES NO O N 1 Number of Existing Accesses Road Surface Type & Construction Information Asphalt 1_! Gravel Ill Treated in Other WCR Culvert Size & Type Materials used to construct Access Construction Start Date Finish Date Proposed Use ❑ Temporary (Tracking Pad Required)/ $75 ❑ Single Residential/$75 ❑ Industrial/$150 El Small Commercial or Oil & Gas/$75 ❑ Large Commercial/$150 ❑ Subdivision/$150 ❑ Field (Agriculture Only)/Exempt Is this access associated with a Planning Process? ❑ No ill USR ❑ RE ❑ PUD ll Other Required Attached Documents - Traffic Control Plan -Certificate of Insurance - Access Pictures (From the Left, Right, & into the access) By accepting this permit, the undersigned Applicant, under penalty of perjury, verifies that they have received all pages of the permit application; they have read and understand all of the permit requirements and provisions set forth on all pages; that they have the authors --togn for and bind the Applicant, if the Applicant is a corporation or other entity; and that by virtue of their signature the Appl'fant is b nd by and agr o comply with all said permit requirements and provisions, all Weld County ordinances, and state laws reg rding f ities cons ructi 1/4 i Printed Name /30111Di la - " , J Sig �u _ (Ai (-17rgo/ Approval or Denial wi I be i sued in min mum of 5 days. Approved by Revised Date 6/29/10 I _. ! _r .r_ il 11 !_ 40 . • ti a.► • • ..f•• • T-�it'. /r +war• .. . . .L.•�-^_7 • ,.,��r�-i- •X� tea• '�• - - _•a • }!'• r9 • g• • + , Vint jib 4111 r.:�.»:/C�" �,.� , .. • .._ a �--; :, � , 1 I _ fwd • ..�•, • itielaitille lir _ . •-,-.--0- rinanrfletr anr.......;_st, "4- -^ssiernt--"'"" de _ . Ai. , , . lell. -.2. . . i• . • t . a• 5 V Fa s I mouroPP ... 1 . • • -Ear . 4,,.• . I • -•.-- -del L . 4._tfts ''3,, •Ow. • . '"It ,fir •t �,� 44w .� Ih ✓ 1 ♦ „�w ` • 1 ' • +•• , `; • :{ '• •. • ` +fl • .Nit ?ft. • ` • , 1 , !. ip N - •, . .` .., ? ..a` . ''''.. : (_1‘ tO.(1).ctgic 4 4r 'Si A .. r4 'art:*-treat;-. -•A . • 4 Ail&NC tas. - ../ ' lybp cAlitigartei aetiai. r:l:I I .,,-.;-7 , ', • r _. { • • • Cam.(�y/�J7� • 4 • ri _ 1" �• Y • w �en ��. +,• -- I- i �at b • GOLy le earth feet 10 meters 4 • •. 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