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Home My WebLink About20173805.tiffUSE BY SPECIAL REVIEW (USR) APPLICATION DEPARTMENT OF PLANNING SERVICES * 1555 N. 17 AVENUE * GREELEY, CO 80631 * 970-353-6100 EXT 3540 * FAX 970-304-6498 FOR PLANNING DEPARTMENT USE: AMOUNT $ APPLICATION RECEIVED BY DATE RECEIVED: CASE # ASSIGNED: PLANNER ASSIGNED - Parcel Number*: a in - a � - U - O - Q 62 Cc' Address of site: /7/fl cIA 4L - (*A 12 digit number on Tax I.Q. information, obtainable at Legal Description: I_Eka 3 _P} fl w 5l Section:Township: "%,- N Range: g b OV Zone District: /45 Acreage: c9. 9/ Floodplain:CY9IV Geological Hazard;0Y6N Airport Overlay:OYON FEE OVVNERI"S) OF T -HE PROPERTY. Name: flo+-i--h e eedire.-.O / / Company: ri Phone #: y / () y a.. Email: Street Address: 3 87rVei eAR h freln City/State/Z Code:For, a _Er... -.a Name: Company: Inn to -'c Phone #: 97j7r37/a- )' , Email Street Address: 71 Rf at ` CR City/State/Zip Code: ° k lam.cr)I710e Name: Company Phone #: 0 62 yaAnoloo Street Address: Email: City/Statelz p Code: APPLICANT OR AUTHORIZED AGENT (See below. Authorization must aocorrpany all applications signed byAuthorizedAgerr#s) Name: Company: Phone #: Street Address. City/StateiZip Code: PROPOSED USE: Email I (We) hereby depose and state under penalties of perjury that all statements, proposals, and/or plans submitted with or contained within the application aretrue and correctto the best of my (our)knowledge. Signatures of all fee owners of property mustsign 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 inust be included indicating thatthe signatory has to legal authority to s inn for th -*c. poratt•. n. o Signature: Owner or Authorized Agent gate 14 �dit e 1144 Print Name telet Signature: Owner or Authorized Agent 0, t ip I,- el (I Print Name Rev 4/2016 Use by Special Review (USR) Questionnaire: Planning Questions: 1, Storage of excavation equipment and supplies. The building will be used for maintenance and repair of equipment. It will be used as a staging area to prepare to go out on jobs. 2. The proposed use is consistent with Section 22-2-20 Goal 2 A.Policy 2.2. Allow commercial and industrial uses, which are directly related to or dependent upon agriculture, to locate within agricultural areas when the impact to surrounding properties is minimal or mitigated and where adequate services and infrastructure are currently available or reasonably obtainable. These commercial and industrial uses should be encouraged to locate in areas that minimize the removal of agricultural land from production. Also Goal 7: A1Policy 7,1. County land use regulations should support commercial and industrial uses that are directly related to, or dependent upon, agriculture, to locate within the agricultural areas, when the impact to surrounding properties is minimal, or can be mitigated, and where adequate services are currently available or reasonably obtainable 3. Section 23-2-220,A.2 -- The proposed use is consistent with the intent of the A (Agricultural) Zone District. Section 23-3-40.5 of the Weld County Code provides for 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 Jots parts of a map or plan filed prior to adoption of any regulations controlling subdivisions in the A (Agricultural) Zone District, 4. The land surrounding the sight is zoned for agricultural use. There are residences with small acreages to the east and west of the property, To the north and south are agricultural fields, The Eaton ditch also runs on the southern border of the property. S. Monday thru Friday 7 AM to 5 PM 6. There are currently 2-3 employees in addition to the property owner. There is a possibility to increase the number of employees in the future as the business grows to a maximum of 10 employees. 7, No shift work is proposed at this time. 8. Person's who use this sight are the owners and employee's. There are occasional deliveries, but not on a daily basis. There are no customers on site. 9. N/A 10. Gravel: 46,661 sq. ft. and dirt: 36650 sq.ft. Building: 4992 sq. ft. 11. There are no designated parking spaces. There are no ADA spaces proposed. Due to the nature of the construction business we are not able to hire anyone with a disability. Also there are no customers on site. 12. No landscaping. Gravel and dirt. 13, There is a chain link fence surrounding the existing building on a portion of the property. 14. No screening proposed at this time. 15. No reclamation as it is an existing site. 16. The property is located in the Ault Fire Protection District 17. The improvements were previously made and the structure and surrounding grounds will remain as is, Drainage per engineer recommendations Engineering Questions: 1. The number of trips in and out varies from day to day. The traffic is primarily pickups with occasional deliveries. There is an average of 2-3 times in/out per day of 2-3 vehicles, 2. The travel will be in CR 80 3. The travel will occur 50% from the East and 50% from the West 4. The expected highest traffic volumes will be around 7AM coming to work and 5 PM leaving work. S. Access to the site is 300' from the western point of the property line and 231' from the eastern property line along CR 80. Also an additional access 40' from the western property line 6. Dependent on engineer evaluation. Please see attached engineer narrative. Environmental Health Questions: 1. The drinking water is North Weld Water 2. There is a septic on the property. Permit number 5P1300186 3. Storage of excavation equipment and job materials such as pipe. 4. No chemicals stored on site. Less than 300 gal of petroleum which is stored inside the building. 5. No fuel storage on site. 6. It will be contained in a sand/oil separator tank 7. There is a floor drain located inside the building connected to the sand/oil separator. 8. N/A 9. NSA 10. N/A Building Questions: 1. Pole barn steel building measuring 48'x 104' for a square footage of 4992 sq.ft. 2. The existing structure will be used for storage of job materials and equipment, repair and maintenance of equipment and for employee's to gather before and after work. 3. See #2 4, There was a question of an ADA bathroom in the building at the preplanning meeting. Due to the nature of the excavation and construction business we are not able to hire any person that would require use of an ADA bathroom. They would be unable to perform the needed job duties. Our facility is not open to the public. Jobs are performed off site. FOR COMMERCIAL SITES, PLEASE COMPLETE THE FOLLOWING INFORMATION BUSINESS EMERGENCY INFORMATION: Business Na11 me:� ►� r'C� Ii Aie' Cc) L.1 �r i� t}3-, ppC1r r Phone: y ` 63T '/O,51` Address: I 7/ re eE. CYO City, ST, Zip: En -hyln (20 got,�5 Business Owner: Home Address: 87s-9( c?J2 ��.t ear , Phone: 9 `m - 30,42 - City, ST, Zip_ Orate CO ego& d -a List three persons in the order to becalled in the event of an emergency: NAME TITLE firif nr rover eir) to p 3 ADDRESS 731/1 C..deia be nn 7O r3 7/ --3:tia 495-7 Business Hours: Days: p On1j 0 cu rie i;5 4 uerriployc'e5 s�#e No 0 IP e A 10 Type of Alarm: ' Irone} Burglar Holdup Fire Silent Audible "ale piebb� Name and address of Alarm Company: Location of Safe: AI A" MISCELLANEOUS INFORMATION: Number of entry/exit doors in this building: 3 o Ph ide of rkielse bc,-4, idol? � Location(s): i + � arG, # aide4- Is alcohol stored in building? Location(s): Are drugs stored in building? , 0 Location(s) : Are weapons stored in building? NO Location(s). The following programs are offer - a public service of the Weld Coumu sheriff's Office. Please indicate the programs of interest_ ❑ Physical Security Check _ __ Crime Prevention Presentation UTILITY SHUT OFF LOCATIONS: Main Electrical: 1to ;l% Pn eec' area "IF (le rent r - Gas Shut Off: _ p re pr ehP ink /\I tit/ (Id re? ,P're Of Aitalarri 3-75 Exterior Water Shutoff: _ j"��.ft.`f`ki prop#€ /7) ti/C Wttil eizi rev de' �c'��idia1.M'' Interior Water Shutoff: itki eQ,r'rig v` 0 cr /'�,G r f'r`'? ho 1-Aroon-', Applicant Tiala [filen) ciL Name Weld County Public Works Dept, 1111 H Street P.O. Box 758 Greeley, CO 80632 Phone: (970)304-6496 Fax: (970)304-6497 ACCESS PERMIT APPLICATION FORM Property Owner (If different than Applicant) 0 0,7e iriii Name Company Address 3P-751/ �i� 6s -- City O fe WY) State CO Zip Business Phone Di ��1— Fax (/7O -a -- j 6S tee] al 0 E-mail VvJeflrrt/fe�L� co Cann Parcel Location & Sketch The access is on WCR �d Nearest Intersection: WCR 3t3 & tr+r�`�t �S Distance from Intersection Parcel number O"7O1V 6 00 On Section/Township/Range 6,07.9( %~%N eGLO Is there an existing access to the property. )YES NO Number of Existing Accesses Road._Sur face Type. & Construction Info_rmation, Asphalt 0 Gravel Treated Other Culvert Size & Type 'r O Address City State Zip Phone Fax E-mail 4= Existing Access a= Proposed Access Materials used to construct Access (011)4- ve f Construction Start Date Finish Date LQ,xef5rJ7Yij b Proposed Use Temporary (Tracking Pad Required)/ $75 Small Commercial or Oil & Gas/$75 Field (Agriculture Only)/Exempt Fr) N ik WCR A t L WCR Single Residential/$75 Large Commercial/$150 1 Industrial/$150 [Subdivision/$150 Is this access associated with a Planning Process? •No MUSR RE UP D eOther 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 authority to sign for and bind the Applicant, if the Applicant is a corporation or other entity; and that by virtue of their signature the Applicant is bound by and agrees to comply with all said permit requirements and provisions, all Weld County ordinances, and state laws regarding facilities construction. Ts - Signature Printed Name •CitrAit rlifiDate Approval or Denial will be issued in minimum of 5 days. Revised Date 6/29/10 Approved by AMR EP t CERTIFICATE OF LIABILITY INSURANCE DATE I MM/DD(YYYY} 4/27/2017 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. _ IMPORTANT; if the certificate holder is an ADDITIONAL INSURED, the policy(ies) must be endorsed. If SUBROGATION IS AIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s)., PRODUCER J9 Insurance Agency PD BOX 1325 217 1st Street, Suite Ault B CO 80610-1325 INSURED Carroll Excavation & Repair 38754 County Road 65 Galeton COVERAGES CO 80622 CONTNAMEACTGertge PHONEj�, 4 { 83 - .O+NE° FAX (970) 034-2127 ADD I _ss; 'ertge@wfhat-wire . loom INSURERIS) AFFORDING COVERAGE _N►AIC # INSURER A ;NIP Programs INSURER B :pinrn acol Assurance INSURER C $NSURER D: INSURER E INSURER F 41190 CERTIFICATE NUMBER:Ct1713001691 REVISION NUMBER: THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE SEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH HI CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED UY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES, LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. lflSi AD —TED( LICY SUUR POrFTPOLIrw' EXP L `R I TYPE OF INSURANCEINSURNE,Sas POLICY IUPMIE IMMtpprifYYYJ IMIMIDDIYMI [[X. A COMMERCIAL GENERAL LIABILITY I CLAIMS -MADE Ix l OCCUR GEN'L AGGREGATE LIMIT APP LIES PER; PLOrl - Kum,JECT LOC 1 OTHER AUTOMOBILE LIABILITY x ANY AUTO ALL OWNED AUTOS HIRED AUTOS X UMBRELLA LIAS EXCESS LIAB DED B . _ SCHEDULED AUTOS NO.N.OWNED AUTOS I RETENTION S OCCUR CLAIMS-WIOE TPF1059B3.2 03 2113P10591332 03 'UE11.059832 03 WORKERS COMPENSATION AND EMPLOYERS' LIABILITY ANY PROPRIETORIPARTNERIEXECUTIVE OFFICER /MEMBER EXCLUDED? (Mandatory in NM H yes, des cube Sri DESCRIPTION or OPEPA11Ot S below YIN L� NIA 4112191 1/28/2017 1/28/2017 1/28/2017 1/28/2018 LIMITS EACH OCCURRENCE S a IiEU PREMISES (Ea occr,rrence1 1,000,000 MED EXP (Any one person) $ PERSONAL & ADV INJURY $ GENERAL AGGREGATE S PRODUCTS - COMP/OP AGO S Employee Benefits 1/28/2018 1/28/2010 3/1/2017 3/1/2018 COMBINED SINGLE LIMIT 'Ee eccisli t 501000 10,000 1,000,000 2,000,000 2,000,000 1,000,000 11000,000 BODILY INJURY (Per person) $ BODILY INJURY (Per accident} $ PROPERTY DAMAGE .� fPer eccidernI) U'ridorin Meld_ :Silo Limit EACH OCCURRENCE AGGREQATE PER STATUTE _ I OTH. E L. EACH .ACCIDENT 1,000,000 1 000 ,000 1, 000 000 E.L, DISEASE - EA EMPLOYE S E.L DISEASE - POLICY LIMIT DESCRIPTION OF OPERATIONS / LOCATIONS ( VEHICLES (ACORD101„ Additional Remarks Schedule, may be attached if more space Is required) As per requested by Certificate Holder. CERTIFICATE HOLDER CANCELLATION 100,000 100, 000 100 000 SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. AUTHORIZED REPRESENTATIVE ACORD 25 (2014/01) Terry Gertge/TG ©1988-2014 ACORD CORPORATION. All rights reserved, The ACORD name and logo are registered marks of ACORD ACCDRO EVIDENCE OF PROPERTY INSURANCE DATE (NI M/D D/YYYY) 5/25/2017 THIS EVIDENCE OF PROPERTY INSURANCE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE ADDITIONAL, INTEREST NAMED BELOW. THIS EVIDENCE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND. EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS EVIDENCE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER()} AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE ADDITIONAL INTEREST, AGENCY rPHONE (970) 834_2009 igireaceig I: 39 Insurance Agency PO BOX 1325 217 1st Street, Suits B Ault CO80610-1325 FAX (970) 831-2127 E•NI�4 h� . A,rc, t��l:gertgeb What wire , corn CODE: I SUB CODE; AGENCY 000 00053 INSURED Carroll Excavation & Repair 38754 County Road 65 Galeton la a CO 806 22 COMPANY NIP Programs 900 Route 9 North Suite 503 Woodbridge . NJ 07095-1003 LOAN NUMPER POLICY NUMBER TPP1059832 03 EFFECTIVE DATE 1/28/2017 EXPIRATION DATE 1/28/2019 CONTINUED UNTIL TERMINATED IF CHECKED THIS REPLACES PRIOR EVIDENCE DATED; PROPERTY INFORMATION LOCATION/DESCRIPTION Covered Property 38754 County Road 65, Galeton, CO 80622 THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED, NOTWITHSTANDING TANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THfS EVIDENCE OF PROPERTY INSURANCE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES, LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAMS. COVERAGE INFORMATION COVERAGE I PEI LS 1 FORMS Building/RC/Special/90% AMOUNT OF INSURANCE DEDUCTIBLE $334,432 1/00 REMARKS (Including Special Conditions CANCELLATION SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS, ADDITIONAL INTEREST MORTGAGEE LOSS PAYEE ADDITIONAL INSURED LOAN # AUTHORIZED REPRESENTATIVE Terry Gertge/T -7.. �...' " • ,�.�-- A+CORD 27 (2009112 01993-2009 ACORD CORPORATION. All rights reserved. Matthew & Carrie Carroll 38754 CR 65 Galeton, n, Co 80522 May 16, 2017, To Whom It May Concern, We are writing this letter to inform you of a meeting for public comment on changing the land use of the property located at 17158 CR 80 Ault/ Co. The land is currently zoned for agricultural use and we wish to change the zoning to commercial use. This meeting will allow for public comments for or against the proposed changes. Meeting minutes will be taken and you will be asked to sign in for verification of attendance. Those minutes will be submitted to the Department of Planning in conjunction with the application for zoning changes. The meeting will be held on: May 26, 2017 at 5:30 PM.. The meeting will be held at: 17158 CR 80. Thank you for your time. Sin erel , ,Liei-c,te-t-C At ea-- mcitetar# /Lek _ ri/ Matthew and Carrie Carroll 5/Ca64.90/7- Public Comment Sign in for Matthew & Carrie Carroll Property located at 17158 CR 800 Ault CO Name Signature 9 M«hiit6-L 4I4y&xs .. i &kin\ I 917--* PlicaDr �ir�'aknS ,GQ ao5�f 9TQz)7-Q6 � Public Comment Meeting Minutes: Date; 5/26/2017 Start Time 5:37 PM Attendee's: Michael Meyers Corey Houchin Angela Diodati Matthew Carroll Carrie Carroll (minute taker) Mr. Carroll opened the meeting by requesting comments on the use of the site for Carroll Excavation. The initial question by Mr. Houchin was regarding the USR. Mr. Carroll explained as he was aware the usage of the property would be changed from ag to commercial. Mr. Houchin asked if the change in zoning would affect them down the road if Mr. Carroll ever sold the property. Mr. Carroll did not have an answer as we have no plans to sell. Mr. Carroll discussed the nature of our Excavation business. It was reported to the attendee's that there was no retail business being proposed. We would continue to store equipment, supplies, maintain equipment on site and complete jobs off site. Mr Houchin & Ms. Diodati would like clarification if this is a full zoning change or whether it is a permit to use the acreage for a commercial business. Mr. Carroll explained that it was his understanding that it was a permit to utilize the existing structure and land to run a commercial business out of. Mr. Carroll did explain that there was a discussion of annexing the property into the town of Ault, and that Ault had declined as they would have to take over too much road maintenance between the property and the town. Mr. Houchin and Ms Diodati reported that they had no issue with the current excavating business. There main concern is the water issues. They feel that the change in the property has worsened their water issues on their property. Mr. Carroll explained that he left approximately half of the property below the road level to assist with water and that he is currently working with an engineer to address any drainage issue that there may be. The primary issue with water is when it crosses CR 80 from the farm field across the road and pools to the south of the road on all residents properties (Carroll's, Houchin/Diodati/Meyers). There was an extended discussion on water issues. Ms. Diodati reported to the group that she had looked into the City of Thornton to deal with the water from coming across the road. She also reported that she has talked with the county about increasing the depth of the ditch on the north side of CR 80 to handle more water run off so that it would not cross CR 80. She feels that if the group of owners to the south of CR 80 could be unified this would help to work with the county to address the water that crosses the road. Mr, Meyers participated in all discussion regarding water and did give some historical perspective on water issues to the south of CR 80 as he has been a long term resident. He reported that there has always been an issue with water pooling on the south side of CR 80 in heavy rains as it comes across CR 80 from the farm field to the north. He did not have any issues with Carroll Excavation continuing to run as is and that he has been in favor of the improvements made to the property. In closing Mr. Houchin & Ms. Diodati reported they are in favor of having the business, their primary concern was with water issues. Meeting End: 6:18 PM Additional information requested by county for USR application from Carroll Excavation & Repair Inc: 1. The letter from the Town of Ault was sent directly to the county. We did not receive a copy. Based on the preplanning meeting we were under the impression that the Notice of Inquiry only needed to be returned if the Ault was going to annex our property in. Storage of excavation equipment and supplies. The building will be used for maintenance and repair of equipment. It will be used as a staging area to prepare to go out on jobs. The owner and employees will come to the building in the morning and prepare equipment and supplies to go out to job sites. At the end of the day they will return equipment and supplies and go home. They will work in the shop during inclement weather or during slow work days and complete maintenance and repairs of equipment so that it remains in good working order to complete jobs. 3. Maintenance of equipment includes: oil/filter changes, greasing equipment, changing out broken parts. The basic maintenance that is required to keep equipment in safe and good working order. 4. The number of trips in and out varies from day to day. There are days that they will come in in the morning and leave at the end of the day. Other days they may be in/out 3-4 times depending on the job need for supplies or if they need to change out equipment for a different type of job. The traffic is primarily pickups with occasional deliveries. There is an average of 2-3 times in/out per day of 2-3 vehicles. Employees come to the building in the morning, park and use the Carroll Excavation vehicles to go out and complete jobs. 5. It was stated that there were no specific parking spaces indicated. Employees are free to park where they wish, however there can be designated spaces both to the north and south side of the building and along the fence to the east of the building. Deliveries are left at the garage doors on the East side of the building. 6. Trash and recycling were not addressed as it was not in the application questionnaire. The dumpster is located to the east of the entrance gate, outside of the fenced area of the property. The trash is picked up by NCD. There is no recycling on site. 7. The gate on the east side of the property is a rolling gate. It does not swing. On the access on the west side of the building is not fenced. There is room to park 1 vehicle and access the propane tank and water meter. 8. It is not often that employees return to the shop late beyond 6 PM. As for Saturday hours the only person that may work on Saturday is the owner to catch up on jobs when behind as is the nature of construction. If an employee wishes to assist on a Saturday it is there discretion. There are times that there are emergency situations such as a water leak that they would work beyond the proposed hours of operation or over a weekend. 9. There are approximately 300 gal of petroleum products on site such as motor oil, hydraulic fluid, grease, DEF for the diesel vehicles. There is not one large 300 gal petroleum container. 10. The floordrain is a concrete area covered by a steel grate a pipe flows out of the building. The liquids will be contained in a sand/oil separator tank. 11. I was not aware that the photos needed to be labeled as that is not stated on the application. It states access pictures from right/left and into site. Both access sites are off of CR 80. Into on west side Looking East Into property on East side 12. We were told in the preplanning meeting that the SPO provided by the county was the list of individuals that we were to send a letter to. This is the people that the letter was sent to. The wet stamp at the bottom is a verification of the date the letter was sent. --- - r— nf..r . nst- s-...--.--, --, _ - r Notice of Inquiry Development within an Intergovernmental Agreement Urban Growth Boundary Date of inquiry -{ eleltdoll Ater _Town Re fe rre d to: ame of Person Inquiring - 6,. .Property Owner M - T !� r44 - Planner Legal Description cif ireitt NW Lfrit rids4 + Legal Parcel If 07707 ow Major Crossroads 7 W e9/c4 Type ofInquiry . O : a t-•5t.�3:..s;..:...-.St:... .. ...r�: s.�..., ... .,. • The above person inquired about developing a par o of land inside your designated Intergovernmental Agreement Urban Growth Boundary. Thts person has been referred to your community by Weld County Planning to discuss development options on this site. Weld County Comments: wilcorrpisiiiist V S5$ L,0 (. R Town/City Comments: I r 41l Signature of VWWeld County Planner • Signature of Town/City Representative totive It is the applicant's responsibility to return the completed form to Weld County. IMOD copy: Applicant: Yellow Copy. I0illti/Cit ,• Pu k- Copy. Weld Coin t;rr Weld County Planning Department 1555 NI 17th Aye, GresIey, CO 8063 - (970) 353-6100, ext.:3540 ._ (OM) 304-6498 �-ax Irrigation Office info@eatonditch.com www.eatonditch.com 106 ELM AVENUE EATON, COLORADO 80615 TELEPHONE 970-454-3377 FAX 970-454-0154 Larimer & Weld Irrigation Co. • Larimer & Weld Reservoir Co. • WRCC, Inc. • Owl Creek Supply & Irrigation Co. DivideCanal & Reservoir Co. • Lucas Lateral Ditch Co. • Montgomery Lateral • Town Boyd Lateral Co. • For Far Lateral Co. Gale Lateral Co. • West Irrigation Co. • Decker Lateral Co. • Graham Lateral Co. June 16, 2017 Weld County Department of Planning Via email: IihaIzano iveldgoV. COin 1555 North 17th Avenue Greeley, CO 80631 RE: Carroll property water drainage Dear Ms. Balzano: Please be advised, the Larimer & Weld Irrigation Company is aware of the installation of a 15" culvert in the side of our canal to be used for drainage by Matt and Carrie Can -oil at 17158 CPS 80, Eaton, Colorado 80615. This installation has been reviewed and approved. Sincerely, Kimberly Nelson, Secretary Board of Directors Larimer & Weld Irrigation Company cc: Bethany Pascoe Lynn Fagerberg, Pres. LWIC Russ Leffler, Pres. LWRC/WICC Carroll Property Drainage Report May 29, 2017 Certification of Compliance I hereby certify that this report for the drainage design for the Carroll Prop; prepared by me, or under my direct supervision, in accordance with t the Weld County storm drainage criteria for the owners thereof. . Richard L, Leffle Asitiksp 6 2 tal chi r r 13/4 . 0 di 4 .�"4 �' ,Ljr ,it "Pk � tilt, " . F Ca a, Project Location The Carroll Property is located in the NW N. of Section 24, Township 7 North, Range 66 West, in Weld County, Colorado, The property lies south of and adjacent to Weld County Road 80, with the southern boundary of the property being the Larimer & Weld Canal (aka the Eaton Ditch). This property is the center parcel of three parcels along WCR 80 located between U.S. Highway 85 to the east and Weld County Road 35 to the west. The parcel to the west is owned by the Myers. The parcel to the east is owned by Angela Diodati and Corey Houchin. The property to the north across WCR 80 is irrigated agricultural land owned by the City of Thornton and leased to a local farmer. The property on the south side of the Larimer & Weld Canal is also irrigated agricultural land owned by the Dalton Land Company. Description of Property This property was acquired by the Carrolls in July of 2012 and is used as the location of the shop and office for their excavating company. Prior to 2012 there was a house and trailer located on this site. From 2011 Google Earth photography it appears that the site was approximately level with the gravel road at that time and a slight berm existed along the north side of the house and trailer. There is no drainage outfall from any of the three parcels south of CR 80 between U.S. Highway 85 and CR 35. There has been none since the Larimer & Weld Canal was constructed across the natural drainage from this area in the 1860's. The current situation appears to be very similar to conditions that have existed in this vicinity for many decades. It could be argued that the existing shallow retention area created on the eastern end of the property is an improvement in that it provides storage that did not previously exist for some volume of storm runoff. However, considering that the current use of the property was not officially approved, the owner is obligated to show that the runoff from this property in its current developed state can be stored on site with no more than a 10 -year historic discharge rate. The Carroll Property includes approximately 3 acres per the Weld County property information. Using the Weld County aerial photography on the Property Portal map, the area from the south edge of WCR 80 to the north edge of the Larimer & Weld Canal bank measures about 2.33 acres. Approximately half of the site is now gravel parking or building area and half is bare ground or vegetated area along the canal. The large majority of the soils in this site and the surrounding property are Kim loam, Hydrologic Soil Group A. A small percentage at the NE corner of the Carroll Property and in the surrounding area is Fort Collins loam, Hydrologic Soil Group C. Drainage Basins There are no FEINIA defined 100 -year floodplains ins affecting this property. There is a well-defined drainage basin to the north of CR 80 consisting of a single agricultural field containing approximately 57 acres. There is a berm and ditch at the north end of this field and borrow ditches along U.S. Highway 85 and CR 35 that intercept any runoff outside of the field. The field has an even grade with a slope of less than 1% to the south. The waste water from irrigation and initial storm runoff flows are collected in an earthen waste ditch and also the north borrow ditch of CR 80, then routed to a tail water pond located to the north of CR 80 near the west end of the Carroll Property. Water from the tail water pond is pumped to the top (north end) of the field for irrigation. It is also pumped into a lake north of the field during heavy rainfall events such as the recent storm on May 19-21, 2017. Per the Northern Colorado Water Conservancy District's Eaton gage located about 1 mile west of this site, 4.28 inches of rain fell over this 3 day period. The heaviest hourly rainfall was 0.48 inches/hour. During this event some runoff overtopped CR 80 and the high water line on the Carroll property was approximately 0.2 feet higher than the low point of the crown on CR 80. This high water line was about 1.4 feet below the top of the north bank of the Larimer & Weld Canal. The lower (south) end of the field is approximately a foot lower than CR 80 and retains a significant volume of water before overtopping CR 20 as sheet flow near the east end of the Carroll Property. The Carnal Property consists of a shallow retention area at the eastern end, a graveled parking area around the shed and to the east of the fenced parking area, and vegetated area between the fence and the Larimer & Weld Canal. The property slopes gently from east to west with a small retention area at the SW corner of the property. The peak 100 - year flow is calculated to be 7.86 cfs in its current developed state. The calculated 100 - year retention volume is calculated to be .284 acre feet. Design Criteria The Rational Method was chosen for the storm drainage analysis since the drainage basins areas are well within the limits for this method. The design storm rainfall is from NOAA Atlas 14, Volume 8 version 2. The 100 -year — 1 hour design storm is 2.75 inches. The 10 -year —1 hour design storm is 1.44 inches which would typically be the allowed release rate for a detention pond. Hydrologic Soil Groups were found in the NRCS Web Soil Survey for Weld County, Colorado, Southern Part. As noted previously in the description of the property, the large majority of the soils in this site and the surrounding property are Kim loam, Hydrologic Soil Group A. A small percentage at the NE corner of the Carroll Property and in the surrounding area is Fort Collins loam, Hydrologic Soil Group C. The UDFCD Excel spreadsheets for the Rational Method, from February 2017, were used to calculate the peak runoff for the 10 -year and 100 -year recurrence intervals and the required detention volume for the 100 -year developed condition of the Carroll Property. The peak 100 -year flow from the field north of the Carroll Property is calculated to be 21 cfs before considering any flow attenuation from natural retention along the north side of CR 80. The south end of the field is about a foot lower than CR 80. The peak loo -year flow from the Carroll Property in its current developed state is calculated to be 7.86 cfs. The calculated 100 -year retention volume required to completely contain runoff from the entire Carroll Property is calculated to be .284 acre feet. Copies of all sources and the UDFCD spreadsheets are included in the appendix. Proposed Drainage Improvements There is a significant volume of storage now existing on the east and west ends of the Carroll Property. Since there is no feasible way to completely drain by gravity any storage pond constructed on the Carroll Property, the retention/detention pond must have a volume adequate to store the entire site runoff from a 100 -year developed condition. The site would be graded so that all of the area east of the shed would drain to the east. The elevations noted on the Drainage Plan included at the end of this report and included in the description of proposed improvements below are based on an assumed elevation of the finish floor of the shed of 100.00. The spot elevations on the Drainage Plan are existing grades. The proposed improvements would be to shape and grade the shallow detention area on the east end of the property to create a detention area 160 feet long by 100 feet wide. This provides an area of 0.37 acres and would be constructed to an average depth of 2 feet to provide storage volume of .73 acre feet. The perimeter of the pond would be set at an elevation of 98.8 which would tie into the existing elevation at the centerline of CR 80 60 feet east of the low point where runoff from the north field crosses the road. The bottom of the pond would slope to the SW corner where any accumulated stormwater would be pumped into the Larimer & Weld Canal within 72 hours of the end of the storm event. Representatives from the Larimer Weld Irrigation Company have been contacted and indicated this would be acceptable to them. As an overflow from this area and as an outlet for runoff above the required 100 -rear retained volume, a 15 inch culvert would be installed at the SW corner of the retention area to discharge into the Larimer & Weld Canal. The culvert elevation of 97.5 would be set to discharge at a level 0.1 feet above the normal high water line of the canal. A flap gate would be installed to prevent any backflow from the canal should an upstream storm raise the water level above the normal high water line and above any water level that might exist on the Carroll property. Representatives from the Larimer & Weld Irrigation Company indicated this outlet culvert would also be acceptable to them. The retention/detention pond would be constructed so there would be an average depth of 1 foot below the invert of the 15 inch culvert. The top of the pond would be at an elevation equal to the center line elevation of CR 80 30 feet west of the east boundary of the Carroll Property. This elevation would be at the crown of the 15 inch outlet culvert. The small retention area now existing at the SW corner of the Carroll Property would be shaped to provide at least 0.1 acre feet of storage to protect the property to the west of the Carroll Property. The depth of this pond would be no more than 2 feet and the top of the pond would be no higher than the floor elevation of the storage shed on the property to the west. This stormwater volume would be pumped into the Larirrier & Weld Canal within 72 hours of the end of a storm event. The combination of the expanded retention/detention pond at the east end of the project, the expanded retention pond at the SW corner of the site, and the 15 inch overflow provide more than required retention storage volume for the Carroll Property in its developed state. The construction of the overflow culvert provides significantly more protection to all of the parcels along the south side of CR 80 than exists at the present time. 2 � -mai • • - a g-eip IA) I I 4494 4 J. it 4963 4493 35' an tk v r•. O 4491 M l 4 -c t4 ■ r' • ■ • • a i i 6 • •.. • • • • a. Y • • i W 6 • Lt lb** • • ITT r 3i # 9� •,t • • • P+t, ! ' e rs __. • •• a ' •.• Fii� • - • • a a I i • 4. • I • rkb O Z t Lij in La t� _ • are rod • a ( Ce 'A High get': ror • -et te • 4 91,31I Se/olit. oil el IS rer r▪ a tr. 48 74 Or Igo 4i—tirrigi • SIR s • CT ems • • r. ler I en tor sr Ault • • • rt 4 • 1 MIM ip • • al • mtircred 11/4 • a • IIL • • este 4, 0 ci c, 3 2 JOINS PANEL 1225 g:a 9, An n C�7fi 131 ha v �C) ID g 6 E rel §r4 a0 g-3 re .0 ga.° a a o 13 Al O W S 0 O C 3 2 t O O 3 z a 0 CO C O 3 z 4t3 ci 3 2 B at tee ao to eP 3 els O 40° 35 14" N 40° 33' I1^ N fr 52 tfiQ'J 522CW Hydrologic Soil Group Weld County, Colorado, Southern Part (Carroll Property) 1Nei; _ 111 gni ram rrra Map Scale: 1:18,500 printed on A pertra (8.5" x 1121) shiet 500 500 1C00 2000 2030 Map projedan : Web Ma lair come- card feat : WGS84 Edge tom; UTM Zone UN WGSB4 Sara hnifi 40° 35'14"N 400 334111' IN USDA Natural Resources a Conservation Service Web Soil Survey National Cooperative Soil Survey 5/27/2017 Page 1 of 4 Hydrologic Soi Z 0 ct ce O L z a MAP LEGEND I- m an E 132 (h .C E a to d a i!7 ID - 44) N U a (13 E a .45 CL cv Imo C 4y C) 0 4) a - measurements._ a rcs C 0 U to 5 6_ Z co 0) cd -a co 0 t 0 C F2 a a z Donn Area of Interest (AOl) ci S �r v) 2 W L cc Web Mercator (EPSG:3857) Water Features ■ Streams and Canals 4 -c co ca di 20'So �.3E "ti cut hu C 411 Cp en a .ctir ma 13 cti .0 0 - La co 0 �,i � C Q� +7 z O 4i I [6 O :c 411 52 I — R cr CO -54 CO 8 CD to lY Interstate Highways m CD a R C 0 D CO CC (B n5 -a -a P 0 z c S 42 4- r'i G R5 -0 ti a ca CO � -C — a U 0 Major Roads CS a- 5 o co � r O El c\I O CSI RI) a r • c {� .0 E Eli L6 Q) u fl -n G0Go Local Roads n a to m 2 C J < Cd a, OD 0_ co 040 13) Ld RA �I fill l3 Ii n,71--1 n o CO o a LP Aerial Photography Apr 22, 2011 —Oct images were photographed: rir ❑ r 0 CO 2 -E O C E 'O cu co Jo a cuCia - S }; 69 :c5 o E RI :It co CO 1:24Ui E E ≥* m tom co .c 03 2 y d� C rr N m a Ni ti Clll G 'c It CO °4 E R E t ; a t� co co U O 0 1 1 1 t it cci 15 C t UI z Is .3 cm # C TA Le t Irit 0S 0 m ❑ El ❑ O Hydrologic Soil Group —Weld County, Colorado! Southern Part Carroll Property Hydrologic Soil Group Hydrologic Soil Group— Summary by Map Unit Weld County, Colorado, Southern Part — (CO618) Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 4 Aquolls and flooded Aquepts, D 7.1 0.4% 21 Daoono clay 1 percent loam, slopes 0 to C 7.4 0.4% 24 Fort Collins percent slopes loam, 0 to 3 C 79.4 4.7% 32 Kim loam, 1 slopes to 3 percent A 983.7 58.5% 40 Nunn loam, percent slopes 1 to 3 C 32.9 2.0% 42 Nunn clay percent loam, slopes 1 to 3 C 11.6 0.7% 46 Olney fine 0 to 1 sandy loam, percent slopes B 175.6 10.4% 47 Olney 1 fine sandy to 3 percent loam, slopes B 167.3 9.9% 51 Otero sandy loam, 1 percent slopes to 3 A 109.9 6.5% 52 Otero sandy percent slopes loam, 3 to 5 A 106.3 6.3% 0.9 0.1% 53 Otero sandy loam, percent slopes 5 to 9 A Totals for Area of Interest 1,682.2 Y 100.0% Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 5127)2017 Page 3 of 4 Hydrologic Soil Group —Weld County* Colorado, Southern Part Carroll Property Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A! B) CI and D) and three dual classes (A/D, BID, and CID). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group D. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a daypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material, These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (ND, B/D, or 1D),, the first letter is for drained areas and the second is for undrained areas. Only the soils that in thew natural condition are in group D are assigned to dual classes. Rating options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie -break Rule: Higher !IX\\ Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 5/27/2017 Page 4 of 4 NOAH Atlas 14 Precipitation -Frequency Atlas of the United States Volume 8 Version 2.0: Midwestern States {Colorado, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin) Sanja Perica, Deborah Martin, Sandra Paviovi , Ishani Roy, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Michael Yekta, Geoffrey Bonnin U.S. Department of Commerce National Oceanic and Atmospheric Administration National Weather Service Silver Spring, Maryland, 2013 . Precipitation Frequency Data Server NOAA Atlas 14 precipitation frequency estimates are delivered entirely in digital form in order to make the estimates more widely available and to provide them in various formats. The Precipitation Frequency Data Server - PFDS eitnp://hdsc.n s.i oaa.gov/!idscipf flO provides a point -and -click web portal for precipitation frequency estimates and associated information, In early 2011a major redesign of the PFDS web interface was done to make PFDS pages interactive. Since then, PFDS pages were enhanced on several occasions to improve the usability and readability of PFDS ebsite's content, to increase data download speeds and to provide additional information, In order to keep this section of the documentation up-to-date for all volumes, the PFDS section is offered as a separate document. This document is updated as needed and is available for download from here: littp://www.nws.noaa.govitolurh*cieF documentsd'N14 Sec5 PFD . df. NOAA Atlas 14 Volume 8 Version 2.0 5/27/2017 Precipitation Frequency Data Server NOAA Atlas 14, Volume 8, Version 2 Location name: Eaton, Colorado, USA* Latitude: 40.5678°, Longitude: -104.7313° Elevation: 4900.05 ft" source: ESRI Maps " source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sarija Paerka, Deborah Martin, Sandra Paviovic, Ishani Roy, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Wheel Yekta, Geoffery Bonnin NOAA, National Weather Service, Silver Spring, Maryland PE tabulpr J PF graphical I Maps a aerials PF tabular PD -based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Jr --2 5 4.240 02910.387 (0.995-0.296 (0.236-0.35Bj I(0.393-0.4; 0.352 0.426 0.567 0.286-0.433){o.sas-o.32a)lSo.asa-a.sss)I 5 -min 19 i -mien 15 -min 30 -min 60 -min 2 -hr 0.429 0.519 0.349-0.528 0.421-0.639) 6.585 I 0.704 (04.475-0.719(0.571-0.867) 0.722 (0.586-0.8B7) 0.691 (0.558.0.853), 0.935 (43.755-1.15 Average recurrence interval (years) I 10 8480 (0.385-0.595) 0.703 (0.564-0.871)1 0.857 (0.688-1.06) 1.16 (0.930-1.44) 1Ad 1.44 (1.75-1.78 (_1.15-1..78) 25 1 50 Lioo 0.627 0.756 0.898 (0.492-0.827) (8.572-1.00►) (0.651-422). 200 j _ 500 �� 1000 1.06 x.72&i.d7') 0.918 1.11 0.720-1.21 ) (0.838-1.47) 1.12 1.35 ( ) (1.012-1.79) 1.52 (1.9 �2.U0� 0.667 1 15 1 89 (0.704-1.07) (4932142) ( l 9 (0.702-1,05) (2841-11.26) 3 -hr 0.932 i.12 �I (0.7861.13)� (0.913-1.36) 6 -hr 12 -hr 24 -hr 1.25 1.50 2 -day 3 -day i _ I10 -day may 1.06 (0.873-1.28) 128 1.06455 I 1.83 (139-2.43) C2430 I 2.73 3.23 r 3.99 (1.74-3.05) 1.99-3.73 ��z�-a.s2 t2.$2 -s.+ 1.32 1.55 (0.953.1.78) (1.07-2.15 1.so 9.e9 2.18 (1.55-2.95) 2.56 (1.77-3.56) 129 1.48 (0.545-1.83) (0.934-2.10) 1.88 2.16 (1.24-2.68) (1.37-3.08) 2.30 2.63 (1.51-3.27) (1.67-3.78) 3.13 3.59 (2.08-4.45) (2.27-5.12) 1.37 1.71 2.27 (1.92-1•fi8) J (1.3$-2.17 j-- _ (1.82.98) 1.48 9.85 2.48 {1.21-1.81) (1.50-2.27 1,9fi-3.23) 1.4�-x.60 4.60 j . 'I.�49-2.508) (2.91-6.56) I-- 1.37 1.71 2.27 2.76 1 _ 3.31 3.94 4.85 - - 5.61 (1.'12- _f 8 (1.38-2.11 1.88-2.98 (2.11-3.65) . (2.43-4.47) (2.74-5.44) (3.22-6.86) (3.59-7.93) '4.85 2.46 3.00 3.61 4. 38 I 5.31 6.16 (1.21,'1.81 (1 .a0-2.27 1.'9£- .23 + 2.31-3.95) (2.68-4.86) X0.01-5.92) (.3455-- '.48 3.96-8.66 r 1.72 2.'13 2.84 3.38 4.02 4.74 5.78 (1.41-2.08) (1.74-2.59) i (2.21-3.62) (2.61-4.39) (2.98-5.34 (3.34-6.44 (3.90-6.05) x.97 2.40 4.31 ' 5.01 6.02 1(1.62-2.36) (1.927.-2.9 (2.437.-°38.93)1.8351-647.71) (3.21-5.65) 3.56-6.73} (4.09-8.29) 6.64 (4.32-9.26) 4 (4.50-9.46) 1.50 1.75 2.22 2.66 3.36 I 3.95 1 4.60 5.32 6.36 7.21 (1.25--1.78) (1.46-2.08) (1.85-2.65) (2.20-3.19) (2.71.4.23L (3.09-5,02) (146-5.98) (3.82-7.09) . ,(4..37-# .M '� .(4.78-9.87') 1.72 I .0f-- 3.02 . . 5.00 (2.13-3.01) (2.51-3.59) (3.03-4.65) (3.42-5.45) (3.784.41) 2.72 3.20 3.93 4.544 5.19 (2.28-3.20) ' (2.67-3.78) - (3.19-4.85) (3.58-5.66) (3.95-6.62) 2.32 2.87 3.36 4.10 4472 I 5.38 6.09 7.09 7,90 (1.9.6-2.72) (2.41-3.37) (2.81-3.96) (3.34-5.04) (3.74-5.86) I (4.10-6.83) (444-7.93) (4.97-9.4 (5.36-10.6) 2.27 I 2.66 3.32 3.88 4.69 5.33 5.99 1 6,68 I 7.63 8.37 (1.93-2.64)Y (2.26-3.10) (2.81-3.87 (3.27-4.55) 11 (3.81-5.68) r (4.23-6.54) (4.59-7.52) (4.90-8.60) (5.37-10.1) (5.73-11.2) 2.50 2.96 3.70 4.31 5.17 5.83 6.49 7.17 8.87 8.76 (2.13-2.90) (2.52-3.42) (3.14-4.29) (3.64-5.03) (4.20-6.20) (4.63-7.08) (4.98-8.07 (5.27-9.15) I (5.70-10.6 L(6.03 -11.6)__J 3.23 3.75 4.60 5.29 6.22 6.92 7.61 8.30 9.24 9.86 (2.77-3.71 (3.22-4.32) (3.93-5.30) (4.49-6.12) (5.09--7'.37) (5.54-8.32) (5.89-9.361 . (6.16-10.5) (6.56-11.9) (6.86-13.UL 3.82 4.39 5.31 6. 5 7.05 7.80 8.53 9.25 10.2 10.9 (3.29-4.36) ` (3.78-5.02) (4.55-6.09) (5.16-6.97 (5.79-8.31) (6.27-9.32) (6.63-10.4) (6.90-11.6) (7.30-13.1) (7.61-14,2) 4.51 I 5.17 I 6.22 7.06 8.17 8.99 9.78 10,6 11454 12,2 (3.89-5.13 (4.46-5.88) (5.35-7'.09 6.04-8.09 _(7.91-13.1) . 1� � � � ��.��-�.�� .�� 1 c�.7�- ��.��-� � . 9� (8.32-14.7) I (8.62-15.9) 5.05 5.81 I 7.01 I 7.96 9.19 I 10.1 I 10.9 11.8 12.8 (4.38+-5.73) (5.03-6.60) (6.05-7.9?) (6.83-9.08) (7.59.10.7) I (8.16-11.9) I (8,56-13.2) (8.84-14.6) (9,24-16.2 1.89 2.19 (1.582.22 . _(1.84-2.57) 11 2.01 11.70-2.36) 7 -day 20 -day 130 -day 45 -day 60 -day 5.70 6.69 7.49 (4.72-7.d9)1 (4.64-9.02) (S.Q310.2) 5.90 6.90 7.72 (d.29-7.72) I (4.$2-9.291 5.21-40.4) 13.5 (9.55-17.5) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probablity that precipitation frequency estimates (for a given duration and average recurrence interval) wfl be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Alias 14 document for more information. _ Back to Top PF graphical http://trdscon s.n+ea.g v he pfds/pfts intp r, .htnirlat=4 }. 1' on= -144.7313 data=d th units=a list^ Seri = ble 1/4 5127/2017 Precipitation Frequency Data Server 3km 2mi Au aas,P w. ��Eaton t • ripted Weal CattritrRd ■ O'Vpiva rr" -4 elk Vet IZ 441 i �4 • Large scale terrain -t r et :r iz ran rort+Coflins Peak 4345 ru 's Cheyenne Greetey 8oui_ildet • am ar: sa. M ' . i �.a. Fuf r 100km • Longmont �# en y r Large scale map 4henitt.- LOrig row vt „Boulder 100krn trio a r { Large scale aerial E 1 4 ht#p:Ilhdsc.nws.noaa.gcvlhd .+r 1pfdslpfds_printpage.html?lot=40. 7 ,len=x104.731 data=depth&units=mil ish&series=pds# table 314 527/2017 Precipitation Frequency Data Server Bach tBactilgaR . DeaartnienR QF Carnnrrerre metal Oceanic and tmosaher c Aram Nakao; Weather Servim NntiortQl WaterCentel 1325 East West Highway Silver Spring, MD 20910 Questions?: HDSCrQuestions poaa.aov tatclaimer 4*St' ion http:111dsc.nws. . vIhds pfdslpfds printpage.h rn 1 `flat=40.5878&I on= -104.7313&€ ata=depth&units„ a glish&series= pds#table 4/4 • .r l I$ O CL v O� O (75 II rip 0- I County Boundary O'S C �F— CD >) ci) La - {Q C C Q, I kV 0 10 i�,� Iii G U, D Lf fli 4 r-. 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L V L. a 2 c C) LD ID Qc 4 IN Lin act art rill? ;4;31 La I o S 13 el eel 14 tD ice en V14m O Cy al to LOtorn in rn CI N m W rag N a) 0 Ngcr r .. LI N LI N i N al R -I IN O N to Peal ins Li) rri UG+ It 0 m N g" 1 CO M co • VI R-1 N ntensity-Duration Curves 0 0 o ,o a 0 0 icy. V • W to UI i *rnOH/S3HaNI} LLISN31N111Vi ifa TIME (MINUTES) -1O-year INEMII100-year r 1 On cts Version 2.00 released May 2017 cx C .a cx 0 C - al Om Li C LC 8 ii [0: C O O co co Ta C, ffs Q. 0 U C J V 0 at sth m C 0 ea re °MI 0 C cc S co a — 0 C 0 . i tap ru c s_ C Cinflj INM C L a II II E S • seal -P64 a- 4.41 III U 4.4 a) E O 0 i S C a r 4-1 gtd 0) i.J CU 4-4 E 5 5 . r, • M .-i E II ro se V rhs' IN Gi Pa PE E O in c no w W IR .s cter ... i s la co a LU 0 co 0 C d co 0 O d co C U a) O C) C C 44 0 w C DETENTION BASIN STAGE -STORAGE TABLE BUILDER LID -Detention, Version 3.07 (February 2017) Protect: Carroll Property Basin ID: Shod site f15i1C 3 AMC t r e 1 taerr. I MU l- rta.Y1J,,.�1�1 ORIIFrCE6 pock Example Zone Configuration (Retention Pond) Required Volume Calculation Selected BMP Type = Watershed. Area Watershed Length = Watershed Slope Watershed Imperviousness = Percentage Hydrologic Soli Group A = Percentage Hydrologic Soil Group B Percentage Hydrologic Soil Groups c/D a Desired WQCV Drain Time z Location for 1 -hr Rainfall Depths = Water Quality Capture Volume tCV) Excess Urban Runoff Volume (EURV) = 2-yr Runoff Volume (P1= 0.72 in )= 5-yt Runoff Volume (P1= 0.87 in) • 10-yr Runoff Volume (P1=1.44 in.) = 25'yt Runoff Volume (P1 : 1 89 in.) * 50-yr Runoff Volume (Pi = 2.3 in.) ■ 100-yr Runoff Volume (P1 = 2,75 in) Sd0-yr F?unc4TVolume (P1 = 46 Approximate 2-yr Detention Volume = Approximate 5-yr Detention, Volume • Approximate 10-yr detention Volume =- Approximate 28-yr Detention Volume = Approximate 50-yr Detention Volume a Approximate 100-yrDetention Volume = RP 2x_33 593 0.005 61400% 90-061 0.0% - 10.0% 12.0 User input Stage -Storage Calculation Zone 1 Volume (100 -year) = lad Zone 2 Storage Volume (Optional) P Select Zone 3 Storage Volume (Optional) Q Total Detention Basin Volwne initial Surcharge Volume (ISV) Initial Surcharge Depth (ISO)$ Total Available Detention Depth (lima) Depth of Trickly Channel Q -I Slope of Trfekle Channel €Sm) Slopes of Main Basin Sides (S,,,r) _ Batrin Length -to -Width Rollo (Rim) In Initial Surcharge Area (A,6v) Surcharge Volume Length (Lev) Surcharge Volume Width (W5)) Depth of Basin Floor (Hf.Qarl = Length of Basin Floor (Lem) Width of Basin Floor (W Area of Basin Floor (Ako 11 Volume of Basle Floor`R.00)) Depth of Main Basin (H,)= Length of Main Basin (t..M,,,v,4 Width of Main Basin (Wr, lei = Area of Main Basin (Am") = Volume of Main Basin (1r'r, rri) Calculated Total Basin Volume 0.037 0.170 0.073 1L092 0160 1}.225 0.293 0.374 0.689 0.06►69 0.087 0149 0.203 0.241 0.284 is triut ° carer percent percent percenl percent hears acre-feet ocie-feel acrlfeel acre -teat Meet aCre-root ►lie-1'set acre -let. sate -feet acre-feet acre -Not acre -feel acreoteet ocro-loot 0264 0.284 N/A 3 ,50 WA, N/A 4 3 0 00 r}.D 0.00 75.3 25.1 teen 0 3.50 103.3 531 5,466 12,382 10.284 ` Optional User Override 1 -hr Precip(tatfon 1 072 0.87 1A4 1.89 fr _ 220 2.75 4.60 I - Inches incites inches Inches Inch inches incites ecre.teet WQCV not provided! acre- feef acre -feat acre -feat: fta3 11 h Wit H:V (Iv ri ft ft fie1/42 8*3 ft ft 0 tt2 Rr3 re -feel Depth Illctomsit Stage - Storage Description Permanent Pool a.t Stage (01 0.00 a - . 0.50 rt Optional Override Length _ Ss.nD Et (tip ( 75.3 79.2 Width 28.1 29.0 Arta X21 1,890 2,299 opticnsl O+rerr ide Area fft"2 1.00 150 1 2.00 250 I 83.2 87 2 81.2 95.3 330 2,748 37.0 3,229 Area (acre 0.043 0.053 0.063 0 O7 Volume Volume 11A3] too -ft 1,025 0 1}24 2,286 0,052 3,779 0.087 410 45.1 3,742 4293 0.086 , 0.099 5,520 0.127 7,589 I 0174 310 99.3 49.1 4,876 0112 g 1 I 0226 Zonal (100-yearl I 3.49 I 1032 530 5,473 0.126 12,398 0.285 3.50 5.00 5.50 6.00 6.50 7,00 13.50 14.00 1450 1500 103,3 53.1 107.3 57.1 115,3 110.3 123 3 127:3 131.3 136.3 139.3 89,1 5,486 61 1 6,801 8.5.1 7,607 69.1 73.1 77-1 81.1 143 3 93.1 147.3 971 151,3 101.1 1553 105.1 159:3 109.1 171.3 121.1 175,3 125.1 179,3 129,1 133A 137.1 141.1 195.3 1451 8,244 9,014 9,815 10,649 11,515 12,412 0.128 12A51 0 286 0.141 15,352 0.156 16,583 0.172 0.169 0 207 0 225 0.244 35,114 26,095 31},400 40,229 0.852 0.427 0.509 0.599 0.698 06306 0.924 0.264 0 285 0,503 0-631 0.560 0,90 0.820 0,651 65,096 72,495 80,398 88,823 97,784 107,298 117,381 1,051 1.188 1.338 1494 128,049 2.940 139,317 3 19 151,203 3471 163,721 3759 176,888 4.081 190,720 4.378 UD-Detention v3,07,. Basin 81017.0:51AM DETENTION BASIN STAGE -STORAGE TABLE BUILDER UD-DateMlon, Version 107 (February 2017) 200 154 T 100 50 0 000 4w sou CIF] berth iro —Width {ftj Area Der l 12.04 16 21400 21300 14100 0. ►s 0165 4JJ00 — 0.130 4., r •400 8m vast IE 4340 3nfl 14- 2 190 • 3095 Arta [*a akrna (ao-ft) 32.00 16,00 1 Hello