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Home My WebLink About20030074.tiff n PLANNED UNIT DEVELOPMENT CHANGE OF ZONE APPLICATION ©.c1 b, .n PLANNING DEPARTMENT USE ONLY: Case Number Application Fee: Zoning District Receipt Number Date Application Checked By: Planner Assigned to Case: To BE COMPLETED BY THE APPLICANT: (Print or type only except for required signatures). / (we), the undersigned, hereby request hearings before the Weld County Planning Commission and the Board of County Commissioners concerning the proposed PUD rezoning of the following described unincorporated area of Weld County. LEGAL DESCRIPTION: Lots A& B. RE-2342. Part of the SE4 Section 30.T6N. R66W of the eh P.M., Weld County, Colorado. (If additional space is required, attach an additional sheet of this same size or a copy of the deed) PARCEL NUMBER: 0805 30 000048 (12 digit number-found on TAX I.D. or obtained at the Assessor's Office) NAME OF PROPOSED PUD SUBDIVISION Bracewell PUD (Sketch Plan Application, Case#S-552) EXISTING ZONING A PROPOSED ZONING PUD i'` TOTAL ACREAGE 79.61 OVERLAY DISTRICTS Windsor Road Impact Fee Area PROPOSED DEVELOPMENT GUIDE SUBMITTAL(Specific or Conceptual) Specific PROPERTY OWNERS OF AREA PROPOSED FOR PUD REZONING: NAME William and Dolores Roberts PHONE (970)686-5972 ADDRESS 12691 WCR 64-1/2 Greeley, CO 80631 NAME PHONE ADDRESS APPLICANT OR AUTHORIZED AGENT (if different than above') NAME Todd Hodges Design, LLC c/o Todd A. Hodges, ASIA ADDRESS 2412 Denby Court Fort Collins, Colorado 80526 HOME TELEPHONE N/A BUSINESS TELEPHONE (970)207-0272 If agent is different from the property owner, please submit written documentation from the property owner authorizing said agent to represent the owner. Signature: Owner or uthorized Agent Signature: Owner or Authorized Agent 2003-0074 1 s.2 n r� P'` William R. & Dolores A. Roberts 12691 WCR 64-1/2 Greeley, Colorado 80631 To Whom It May Concern: Please be advised that We, William and Dolores Roberts, hereby authorize Ms. Anne Best Johnson of Todd Hodges Design, LLC, to represent me in my endeavor to subdivide my land, located in part of the SE 'A of Section 30, T6N, R66W of the 6th P.M., Weld County, Colorado./241 -61O) Vetlitig- Wil'am R. Roberts date Dolores A. Roberts date 7-yd� r-� Laa Todd Hodges Design, LLC PUD Change of Zone Application Non-Urban Development (specific guide) Prepared for: William R. and Dolores A. Roberts 12691 Weld County Road 64- 1 /2 Greeley, Colorado 8063 I Prepared by: Todd hodges Design, LLC 24 12 Denby Court Fort Collins, Colorado 80526 Submitted: September 13, 2002 2412 Denby Court • Fort Collins, Colorado 80526 • (970) 207-0272 • fax: (561)828-8059 email: toddbodgesdesigna�earthlink.net Todd Hodges Design, LLC Table of Contents 1. Change of Zone Application Sheet 2. Authorization Form 3. Response to Staff Comments a. Letter from the Division of Wildlife 4. Specific Development Guide 5. FEMA Map 6. Soils Map and Corresponding Narratives 7. Surrounding Property Owners Certificate 8. Mineral Owners Affidavit 9. Preliminary Improvements Agreement 10. Division of Water Resources Information Summary 11 . Engineers Report on the Proposed Dual Water Supply System 12. Email indicating adequacy of North Weld County Water District Service Agreement 13. North Weld County Water District Service Agreement 14. Deed 15. Change of Zone Plat (Attached) 16. Preliminary Drainage Plan (Attached) r 2412 Denby Court • Fort Collins, Colorado 80526 • (970) 207-0272 • fax: (561)828-8059 email: toddhodgesdesign@earthlinlcnet Planned Unit Development Specific Development Guide Introduction The Bracewell Planned Unit Development provides a rural residential opportunity in unincorporated Weld County. The outcome of this Planned Unit Development is to create ten 2.5 — 3.0-acre estate lots coupled with a 50.78-acre common open space site. This common open space site will contain a 33-acre lake. The proposed open space incorporates 64% of the entire site, far exceeding the 15% required by the Planned Unit Development common open space requirements. Each lot will be connected to the common open space. An added benefit of the large amount of common open space is the buffering achieved between residential sites and adjacent county road rights-of-way. Proposed land uses within the subdivision include single-family residential as well as passive and active recreational uses. The specific architectural styles of the principal and accessory residential structures will be selected by the individual lot owners with standard limitations outlined in the Bracewell PUD Covenants and Home Owners Association. This low-density development will be compatible with surrounding land-uses, architectural style, and general character of the area. Agricultural activities have been occurring on the site. The Right to Farm statement, as it appears in Chapter 22 of the Weld County Code will be placed on all recorded plats. By doing so, future residents of the subdivision will be aware of long-standing agricultural practices in the area. A mining plan has been reviewed and approved for this site. Mining of the gravel resource is currently occurring on this property. Phase two begins in October, 2002. The entire project is 60% completed and will require an additional 12 — 18 months to complete. Ten lots are proposed. The tenth lot is Lot A of a Recorded Exemption that is being incorporated into the subdivision. Rather than removing this Lot A from the subdivision, it will be incorporated to ensure entry access safety, uniformity in design and cohesive character for the area. Two structures exist on site. The barn will remain as part of Lot 9. The home located on site will be removed from this location. Section 27-4-20.E.14. Initial impact plan addressing all impacts this use will have on the proposed site and surrounding land uses. A listing of potential impacts is cited in Section 274-30 of this Chapter. (SPECIFIC DEVELOPMENT GUIDE) Section 27-6-40. Component One- environmental impacts 1. Noise and vibration 2. Smoke, dust and odors 3. Heat, light and glare 4. Visual/aesthetic impacts 5. Electrical interference 6. Water pollution Development of this proposal should not result in any negative environmental impacts, including the above listed environmental concerns. As the use of the site will remain residential and open space, adverse impacts from noise and vibration, smoke, odors, heat, glare, visual impacts, electrical interference and water pollution will not occur on the site. Visual and aesthetic impacts will be enhanced by entrance landscape treatments and landscaping within the subdivision. 7. Wastewater disposal All wastewater disposal within this development will be through the use of individual septic systems. Replacement envelopes have been delineated on the plat. The proposed lot sizes within the subdivision have been designed to meet the density requirements of the Weld County Code and the Weld County Health Department, therefore no negative impacts are foreseen on this site. All septic systems and foundations shall be engineered according to individual lot characteristics. A drainage report is included with application materials. 8. Wetland removal This proposal does not remove wetlands. 9. Erosion and sedimentation 10. Excavating, filling and grading 11. Drilling, ditching and dredging Any on-site grading, drilling, ditching or dredging will be done sympathetically. Erosion will be kept to a minimum. The common open space areas surrounding the residential lots will be planted in native and/or drought tolerant grasses and should not be disturbed with construction. An on-site drainage plan has been submitted with this application. This site is currently under provision of USR-1124 for a sand and gravel mining operation. 12. Air pollution 13. Solid waste 14. Wildlife removal 15. Natural vegetation removal This proposal will not result in negative impacts to the above listed concerns. The residential uses should not create negative impacts to air pollution or contribute to solid waste concerns. ,.. There will also be minimal removal of natural vegetation on the site. This proposal greatly increases the amount of wildlife habitat on the site. The property owner has been in contact with the Division of Wildlife concerning this project. A letter from the Division of Wildlife concerning this particular project is included with application materials. 16. Radiation/radioactive material To the applicant's knowledge, there are no radioactive materials located on this site. 17. Drinking water source The drinking water source is through North Weld Water District. A letter from North Weld Water District is included indicating assurance of the adequate quantity and quality of water taps. In addition, the Water Supply Information Summary is also included. 18. Traffic impacts All residential lots will be served by an internal roadway which will limit the number of access points onto Weld County Roads 64.5 and 27, further allowing a continuous flow of traffic on these roadways. Concerns raised in Sketch Plan comments have been addressed. Please refer to the attached plat. My unforeseen traffic impacts resulting from the review of this proposal by the Weld County Public Works Department will be addressed in future application submittals. Section 27-6-50 Component Two-service provision impacts 1. Schools 2. Law enforcement 3. Fire protection ,— 4. Ambulance Service providers for this PUD include the Windsor School District Weld County RE-4, Weld County law enforcement, and the Windsor-Severance Fire Protection District. In a referral response from the Weld County Sheriff (dated September 20, 2000), several concerns were raised. The first is the nature of the proposed recreational lake. The lake is for use by the residents only. A school bus drop off and mail delivery station has been incorporated into this site design. On-site lighting has been incorporated for internal streets, entrance treatment and around the lake. In a referral response from the Windsor/Severance Fire Protection District (dated September 13, 2000), ten items were noted for improvement. These items have been incorporated into this application. In lieu of two accesses, two additional turn-arounds will be placed in front of Lots 3 and 7. These turn-arounds will be the same size as a cul-de-sac. These turn-arounds will not be paved but will meet weight requirements specified by the Fire Protection District. Four hydrants will be located on site in front of Lots 2, 4, and 9 and at the turn-around between Lots 6 and 7. 5. Transportation (including circulation and roadways) 6. Traffic impact analysis by registered professional engineer The internal roadway in the PUD is designed to meet the requirements of Chapters 24 and 26 �. of the Weld County Code. A cross section of the proposed roadway is included with this application. The internal road is labeled, "Bracewell Road" on submitted plats. The internal road will be maintained for one year by the Home Owners Association. After one year, the internal road will become a public road and deeded to the County. Signs communicating Bracewell Road is not a through street will be provided. Additional stop r signs and street name signs will be provided. 7. Stone drainage Storm drainage will be handled on-site. 8. Utility provisions 9. Water provisions 10. Sewage disposal provisions The drinking water source is through North Weld Water District. All wastewater disposal within this development will be through the use of individual septic systems. Utility providers will have the standard easement dimensions of 20 feet on the sides and rear lot lines and 15 feet across the front lot lines. Section 27-6-60 Component Three— landscaping elements 1. Landscape plan 2. Treatment, buffering or screening and perimeter treatment Any landscaping improvements on the site within the common open space areas. Individual landscaping on each lot will be determined and maintained by the lot owner. A buffer treatment has been placed between the internal roadways and the County road system. A preliminary landscape plan has been submitted with this application. The Division of Wildlife has been instrumental in providing guidance with the selection of drought-tolerant and wildlife-friendly plant material. The enclosed plat specifies location of plant groupings. The final plat will provide specific plant material locations. An existing reclamation plan (2n° and 3"°Amended USR-1125) is in place for the mining activities on site. 3. Maintenance schedule for landscaping elements 4. On-site improvements agreement 5. Evidence of adequate water The maintenance for all landscape improvements in the common open space areas will be conducted by the homeowners association. All plant material will be maintained in a healthy state and any dead or dying plant material will be replaced at the earliest planting time possible. All plant species selected will be drought tolerant and should require minimal water usage. Landscape species will also be selected to adapt to the soil conditions of the site. A non-potable system is being proposed to supply the necessary irrigation to the open space areas. A dual water system has been designed. This preliminary dual water system report is included in application materials. This system shall be utilized for the maintenance of the common areas and individual lot irrigation. The Homeowners Association will own and maintain the dual water system for these purposes. (p Section 27-6-70 Component Four— site design 1. Unique features As previously stated, the topography of the site is relatively flat with a slight slope to the south. There are no other unique natural features existing within the proposed PUD. 2. PUD rezoning consistent with Chapter 22 of Weld County Code The outcome of this Planned Unit Development is to create ten 2.5 — 3.0-acre estate lots coupled with a 50.78-acre common open space site. This common open space site will contain a 33-acre lake. The proposed open space incorporates 64% of the entire site, far exceeding the 15% required by the Planned Unit Development common open space requirements. Each lot will be connected to the common open space. Section 22-2-190.B.1 PUD.Goal 2 states, "Encourage creative approaches to land development which will result in environment of distinct identity and character." By preserving and enhancing such a large proportion of the site, the applicant will indeed create a residential environment of distinct identity and character. Section 22-2-190.D.2.a PUD.Policy 4.1 states, "The design of a planned unit development should ensure compatibility and harmony with existing and planned uses on adjacent properties and within the planned unit development." The applicant has carefully considered the uses on-site, adjacent properties and the county road network. An added benefit of the large amount of common open space in this particular application is the buffering achieved between residential sites, adjacent land use, and adjacent county road rights-of-way. This property is located on land classified as "Prime" and "Non-Irrigated" by the USDA Soils map recognized by Weld County. Section 22-2-60.D.1, A.Goal 4 states, "Provide a mechanism for the division of land which is agriculturally zoned." This development proposes to divide the property into ten residential lots, with a 50.78-acre common open space site. Mining on-site resources is an agricultural activity. A gravel mining use by special review permit is required in the Agricultural Zone of unincorporated Weld County. Once this activity has been completed, the reclamation plans are for a 33-acre recreational lake. Staffs Sketch Plan comments indicate future applications must demonstrate how the proposed development is compatible with the Comprehensive Plans of the County, City of Greeley, and Town of Windsor. Section 22-2-90.C.1 UGB Goal 3 indicates, "The County and municipalities should coordinate land use planning in urban growth boundary areas. " This proposal is located on property outside of an Intergovernmental Agreement Urban Growth Boundary. This proposal is located on property outside a standard Urban Growth Boundary. This proposal is located on property outside either form of Urban Growth Boundary. Although this proposal is not within either a standard or Intergovernmental Agreement Urban Growth Boundary recognized by Weld County Government, the applicant has addressed the concerns of the Town of Windsor (referral response to Sketch Plan comments dated October 6, 2000). In addition, the applicant has addressed all concerns of the Windsor-Severance Fire Protection District to their satisfaction. The City of Greeley indicated the proposal exceeds the one unit per 10-acre designation of the City's 2010 Growth Ring. The applicant has met the intent of the City of Greeley by providing an overall �_ density of ten units on nearly 80 acres (one unit per 8-acre designation). 3. Compatibility within PUD zone district 4. Compatibility with surrounding land uses The existing design of the subdivision takes into consideration the existing uses of the surrounding properties and therefore provides a large buffer between residential uses, adjacent properties and the existing irrigation practices of the area. All recorded plats will include the Weld County Right to Farm, found in Appendix 22-E of the County Code. The bulk requirements of the Estate Zone District will be followed. 5. Overlay districts The site is located within the northern Road Impact Fee area. All fees shall be paid at the specified timing. Section 27-6-80 Component Five— common open space usage The common open space areas within this subdivision are designed and proposed to be consistent with the requirements of Section 27-6-80 of the Weld County Code. 1. Permanent common open space restrictions 2. Establishment of homeowners organization 3. Mandatory membership in homeowners organization 4. Homeowners organization responsibilities 5. Homeowners organization powers r 6. Ownership and maintenance of common open space 7. 15% common open space allocation In accordance with Section 27-6-80.B.7, 15% of the site is required to be devoted to common open space. This development far exceeds the 15% requirement of the Weld County Code. This application proposes a 50.78-acre common open space site to include a 33-acre lake. The proposed open space incorporates 64% of the entire site. The common open space will be owned and maintained by the homeowners association. The construction of the open space amenities is minimal and is mainly vegetation. Section 27-6-90 Component Six—signage All signage within this PUD will comply with the sign standards set forth in Section 27-6-90 and Division 6, Article II, Chapter 19 of the Weld County Code. A monument sign and landscaping treatment will be designed for the subdivision entry. Section 27-6-100 Component Seven— MUD impact Not-applicable: This proposal is not located within the Mixed Use Development Boundary as delineated by Weld County. Section 27-6-110 Component Eight— intergovemmental agreement impacts Not applicable: This proposal is not located within a standard Urban Growth Boundary or an Intergovernmental Agreement Urban Growth Boundary area. r1 � PRELIMINARY EXHIBIT "A" Name of Subdivision Bracewell PUD Filing: Location: Lots A and B. RE 2342. located in part of the SE4 30-06-66. south of and adjacent to WCR 64- 1/2 and west of and adiacent to WCR 27 Intending to be legally bound, the undersigned Applicant hereby agrees to provide throughout this subdivision and as shown on the subdivision final plat County dated Recorded on in Book . Page No. . Reception No. , the following improvements. (Leave spaces blank where they do not apply.) IMPROVEMENTS NUMBER OF UNITS UNIT COST TOTAL COST Earthwork and General Conditions 10 $8,997.00 $89,970.00 Street paving Curbs, gutters and sidewalks 10 $13,725.00 $137,250.00 Storm drainage 10 $525.00 $5,250.00 Retention ponds Ditch improvements Subsurface drainage Sanitary sewers Truck and forced lines Mains Laterals(house connected) On-site sewage facilities On-site water supply and storage Potable Water Infrastructure 10 $20,996.00 $209,960.00 Fire hydrants Survey. street monuments&boxes Street lighting Street name signs 1 $50.00 $50.00 Fencing requirements Landscaping& Irrigation 10 $5.300.00 $53,000.00 Park improvements(bus stop, mail box and entrance sign) 1 Included in other area bid Road culvert Grass Lined Swale Utilities 10 $4.500.00 $45,000.00 Water Transfer Misc. 10 $2,000.00 $20,000.00 SUB-TOTAL $560.480.00 r Report Date: 09/13/2002 01:37PM WELD COUNTY TREASURER Page: 1 STATEMENT OF TAXES DUE SCHEDULE NO: R7922599 r ASSESSED TO: ROBERTS WILLIAM R& DOLORES A 12691 WELD CO RD 64 1/2 GREELEY, CO 80631 LEGAL DESCRIPTION: PT SE4 30-6-66 LOT B REC EXEMPT RE-2342 PARCEL: 080530000075 SITUS ADD: TAX YEAR CHARGE TAX AMOUNT INTEREST FEES PAID TOTAL DUE 2001 TAX 970.14 0.00 0.00 970.14 0.00 TOTAL TAXES 0.00 GRAND TOTAL DUE GOOD THROUGH 09/13/2002 0.00 ORIGINAL TAX BILLING FOR 2001 TAX DISTRICT 0430- Authority Mill Levy Amount Values Actual Assessed WELD COUNTY 20.559 204.98 AGRICULTURAL L 34,373 9,970 SCHOOL DIST RE4 58.425 582.49 NCW WATER 1.000 9.97 TOTAL 34,373 9,970 NWC WATER 0.000 0.00 WINDSOR SEVER FIRE 6.417 63.98 AIMS JUNIOR COL 6.620 66.00 WINDSOR LIBRARY 3.871 38.59 WEST GREELEY SOIL 0.414 4.13 97.306 970.14 -TAXES FOR 2001 ALL TAX LIEN SALE AMOUNTS ARE SUBJECT TO CHANGE DUE TO ENDORSEMENT OF CURRENT TAXES BY THE LIENHOLDER OR TO ADVERTISING AND DISTRAINT WARRANT FEES. CHANGES MAY OCCUR AND THE TREASURER'S OFFICE WILL NEED TO BE CONTACTED PRIOR TO REMITTANCE AFTER THE FOLLOWING DATES: PERSONAL PROPERTY AND MOBILE HOMES-AUGUST 1, t' REAL PROPERTY-AUGUST 1. TAX LIEN SALE REDEMPTION AMOUNTS MUST BE PAID BY CASH OR CASHIERS CHECK. P.O. Box 458 Greeley,CO 80632 (970)353-3845 ext.3290 WELD COUNTY TREASURER Pursuant to the Weld County Subdivision Ordinance, the attached Statement(s) of Taxes Due, issued by the Weld County Treasurer, are evidence that, as of this date, all property taxes, special assessments and prior taxes liens currently due and payable connected with the parcel(s) identified therein have been paid in full. Signed Date -1 I 002,- r Nov 04 02 12: 37p Todd Hodges Design LLC 561.x88059 p. 3 11/04/2002 10:18 19706866044 ROBERTS PAGE 02 • Department of Energy G l ! Western Area Power Administration Rocky Mountain Customer Service Region „ 3 P.O. Box 3700 Loveland,CO 80539-9009 Jul 17 2002 Mr.Billy Roberts 12691 WCR 64 V2 Greeley, Colorado 80631 Dear Mr.Roberts: Enclosed,for your records,is a copy of a frilly executed License Agreement dated June 12,2002,for the paved cul-de-sac and berm being proposed on Western Area Power Administrations easement for the Ault-Weld East 230 kV Transmission Line in Section 30, T.6N.,R.66W., 6d.P.M., Weld County, Colorado. r As stated in the License Agreement,a minimum overhead clearance of at least 24 feet from the conductors must be maintained at all times_ S ly, Da Gaul ty Officer Enclosure Nov 04 02 12: 37p Todd Hodges Design LLC 561,?880S9 p, 2 11/04/2002 10:18 19706866044 ROBERTS PAGE 03 License Agreement No. RNR-LI-2002-16 DEPA STATES OF AMERICA DEPA O E RTMENT OF ENEROXC WESTERN AREA POWER ADMINISTRATION Auk-Weld East 230 kV Transmission Line SE'/4 SEW.Section 30,Township 6 North,Range 66 West 6th Principal Meridiea,Weld County,Stele of Colorado Vicinity of Structure 5311 LICENSE AGREEMENT THIS LICENSE AGREEMENT is toads this Largay of ra.tc. 2002,between BILLY ROBERTS(LICENSEE),whether ono or more,and the UNITED STATES OF AMERICA,Department represented by the officer axe i6ng this agroanent,pursuant t e Energy,WestAct,ern Area Power 17, 1902,Administration(Western), amendatory thereof and supplementary Reclamation Act of pct, 17, 1902,us 1. 77, and 1) acts rnDp nary Oterto,and the.Dopatmtant of Energy Organization Act,Act of Aug ust 4, 1977,9[Stet 565. WITNESSETH: Western cancers that the PAVED CUL-DE-SAC AND BERM(FACILITY),proposed by the LICENSEE will not interfere with the operation and maintenance of Ault-Weld East 230 kV Transmis9'on Line,if constructed la tiro manner and at the'orations shown on Exhibit A,attached hereto and made a part hereof In consideration of Western's concurrence,the LICENSEE agrees to the following: . (a)This license does not grant any right,privilege,or Interest in the land. The LICENSE is responsible for obtain' necessary land rights from the underlying landowner. Apo obtaining any (b)This license is only valid provided the FACILITY is constructed,operated,end maintained in conformance attached drawings and/or exhibits. Any relocations,changes,or upgrades inquire additional contumacy by Western. ..� LICENSEE agrees to alter or relocate its FACILITY,at no cost to Western,to accommodate future modIficrdions of Western's facilities,including but not limited to,upgrades of the transmission line. (c)LICENSEE Sall nom Western at least 10 days prior to commencing installation of the FACILITY to by Western. permit inspection arvin Do _ (d)To abide by and comply with all applicable Federal,B State and local laws,and b'uildiingg end2safety codes. (�YL LICENSEE agrees to o Indemnify and hold harmless Weatem,ib employees,or agents,from any loss or damage and from any liability iab li y on f personal injury,death,or properly damage arising out of LICENSEE'S,its agents,con subcontractors use of the land coveted by this License Agreement contractors,or (f)LICENSEE shall limit any landscaping on easements to low growing vegetation that will not exceed 10 Res jn maximuei Mature height (g)A minimum overhead clearance of et least 24 het from the conductors must be maintained at all times. LICENSEE THE UNITED STATES OF AMERICA Billy Roberts 12691 W CR 64 h WesternArea Power Administration GreeleyCololorado 80631 (Si lltieRtA>d i c e son Brush:kneland Office Maintenance Mating= Qsi)r.a Rocky Mountain Region (Title) fT Draft Report on the Change of Use of 7 Share of Roberts' Whitney Ditch Prepared for: Hall-irwin Construction Company Prepared by: LEAF ENGINEERING April 2002 Table of Contents Page No. Introduction Historic Irrigation Use -2- Historic Use of Whitney Ditch Water -4- Plan for Augmentation -10- Conclusions -15- r. r -1- Introduction This report presents the historic consumptive use attributed to 8 shares of Whitney Ditch used to irrigate 74 acres on the Roberts Farm near Greeley, Colorado. This report will quantify the historic depletions and returns for 5 of the 8 shares of Whitney Ditch that were historically used to irrigate the 74 acre Roberts Farm. In addition, this report presents the depletions attributed to an aggregate mine owned by Hall-Irwin Corporation and the subsequent augmentation of these depletions using the 5 shares of Whitney Ditch. The farm is located in the south-east quarter of Section 30, 6 north, 66 west of the 6`h p.m., as shown in Figure 1. This farm has been historically irrigated with Whitney Ditch water since the late 1950s by the Firesteins. In 1992 Mr. Roberts purchased the 74 irrigated acres and 8 shares of Whitney Ditch from the Firesteins. In 2000, Mr. Roberts leased approximately 53 acres of the farm to Hall-Irwin Corporation for aggregate mining. In addition, Mr. Roberts has made 5 of the 8 shares available to Hall-Irwin for augmentation. Since 2000, Hall-Irwin has commenced mining operations pursuant to permit DMG-M-96-060. Historic Irrigation Use Table 1 shows the crops and acres historically cultivated and grown on the 74 acre Roberts farm. Table 1 Summary of Crops Cro Acres Alfalfa 40 Corn 20 Sugar Bee 14 Total 74 The crops and acres contained in Table 1 represent the period average of crops cultivated and irrigated by the 8 shares of Whitney Ditch. This cropping pattern was based on an information provided by Wilbert Firestien. The 8 shares of Whitney Ditch was historically used on the 74 acres since the early 1900s. In this analysis, the study period selected was 1950 - 1996. This period was selected since it contains recorded diversions of the Whitney Ditch during the drought of the early 1950s, and the wetter period of the 1990s. Fifty-three of the 74 acres and 5 of the 8 shares of Whitney Ditch was leased by Hall-Irwin in 2000 and converted to an aggregate mine. The creation of the aggregate mine resulted in the dry-up of the 53 acres and the termination of irrigation of the subject lands by the 5 shares of Whitney Ditch. -7- v — • A tI on- 4, A II • o� lit II i II i II I 11• (i BM �� I II 474er , %N°o I N `tee i ` owes fi B : l ewell ; REs WC va ti i `� • , Reclaimed Pit I 1 (\,_ 33 Acres , n iI Roberts Parcel _ 74 Irrigated Acres U 40 i a,, • glia / RIv +c f Cache la Poudre Rim j(,Jt^��` �``t.i . (----..„_____:>--N \... 31 K.----, fq 800 0 800 Fe N Roberts Parcel LEAF ENGINEERING Ft ^ WE Figure 1 s Historic Acres April 2002 1 -3- Historic Use of Whitney Ditch Water The 8 shares of Whitney Ditch has been the only water historically used to irrigate crops on the 74 acres. Water is delivered to the 74 acres from the main Whitney Ditch as shown on Figure 1. The Whitney Ditch diverts water from north bank of the Cache la Poudre in the north-east quarter of the south-west quarter of Section 19, 6 north, 67 west. Table 2 presents the water rights attributed to the Whitney Ditch. There are 320 outstanding shares in the ditch. Table 2 Summary of Whitney Ditch Water Rights Priority Adjudication Appropriation Decreed Number Date Date Flow Rate (cfs) 4627 1882-04-11 1862-09-01 48.23 7923 1882-04-11 1871-09-10 12.95 Table 3 contains monthly river diversions of the Whitney Ditch summarized from the State Engineer's database. Table 4 presents the farm headgate deliveries attributed to the 8 shares of Whitney Ditch. These on farm headgate deliveries include a 15 percent ditch conveyance loss. Table 5 contains the on-site net depletions attributed to the 8 shares of Whitney Ditch used to irrigate the 74 acres. Table 6 shows the monthly lagged ground water returns for the 8 shares. These lagged returns were estimated by assuming that 67 percent of the total return flow volume of the 8 shares comprised ground water. The on-site ground water return volume of 69.83 acre-feet was lagged back to the Cache la Poudre River via a 174 day Stream Depletion Factor(SDF) estimated from area aquifer transmissivity of 120,000 gallons per day per foot, storage coefficient of 0.2 and a distance from the river averaging 3,735 feet. Table 7 presents the surface water returns attributed to the 8 shares of Whitney Ditch. Surface water returns were assumed to comprise 33 percent of the total return volume. r -4- r Table 3 Whitney Ditch River Headgate Diversions (all values in acre-feet) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Total 1950 0.00 0.00 0.00 916.38 1715.73 2463.51 2864.17 2715.41 1525.31 0.00 0.00 0.00 12200.51 1951 0.00 0.00 0.00 0.00 1872.42 2162.01 3008.97 2423.84 2167.97 0.00 0.00 0.00 11635.21 1952 0.00 0.00 0.00 0.00 1674.07 2536.90 3106.16 2812.60 1773.25 0.00 0,00 0.00 11902.98 1953 0.00 0.00 0.00 0.00 1432.09 2413.92 2669.79 2269.12 2269.12 0.00 0.00 0.00 11054.04 1954 0.00 0.00 0.00 1902.18 1432.09 2372.27 2277.06 2092.59 1991.43 0.00 0-00 0.00 12067.62 1955 0.00 0.00 0.00 378.85 2481.36 1348.78 2370.28 2175.90 1916.06 0.00 0.00 0.00 1067123 1956 0.00 0.00 0.00 130.91 1574.90 2566.65 2415.90 2183.83 1939.86 0.00 0.00 0.00 10812.05 1957 0.00 0.00 0.00 0,00 37.69 1487.63 2741.20 2693.59 1584.82 0.00 0.00 0.00 854493 1958 0.00 0.00 0.00 0.00 357.03 1822.84 2409.95 2342.51 1884.32 0.00 0.00 0.00 8816.65 1959 000 0.00 0.00 0.00 1071,09 2509.13 2699.54 2441.69 2237.39 0.00 0.00 0.00 10958.84 1960 0.00 0.00 0.00 716.04 1870.44 2354.41 2505.16 2649.96 1854.57 0.00 0.00 0.00 11950.58 1961 0.00 0.00 0.00 0.00 1035.39 846.96 2550.78 2366.32 1549.11 0.00 0.00 0.00 8348.56 1962 0.00 0.00 0.00 862.82 2191,77 1731.60 2447.64 2659.87 1473.74 0.00 ;0.00 0.00 11367.44 1963 0.00 0.00 0.00 1317.04 2526.98 1676.06 2096.56 2281,02 1142.50 0.00 0.00 0.00 11040.16 1964 0.00 0.00 . 0.00 0.00 2177.88 1442.01 3058.56 2398.05 2372.27 17,85 0.00 0.00 11466.62 1965 0.00 0.00 0.00 618.85 2366.32 487.94 2358.38 2576.57 1707.79 0.00 0.00 0.00 10115.85 1966 0.00 0,00 0.00 412.57 2564.67 1346.80 2649.96 2564.67 1362.67 0.00 0.00 0.00 10901.34 1967 0.00 0.00 0.00 99.18 1693.91 604.97 1628.45 2645.99 1739.53 107.11 0.00 0.00 8519.13 1968 0.00 0.00 0.00 0.00 1876.39 2046.97 2761.03 2661.86 2007.30 0.00 0.00 0.00 11353.55 1969 0.00 0.00 0.00 182.48 1576.88 1737.55 3326.33 2923.68 1557.05 0.00 0.00 0.00 11303.97 1970 0.00 0.00 0.00 0.00 1783.17 1428.12 2915.75 2657.89 1725.65 0,00 0.00 0.00 10510.58 1971 0.00 0.00 0.00 261.82 241,99 2179.87 3129.96 2786.82 1207.95 0.00 0.00 0.00 9808.41 1972 0.00 0.00 0.00 878.69 2602.35 1471.76 2995.08 2378.22 602.98 265.79 0.00 0.00 11194.87 1973 0.00 0.00 0.00 0.00 1061.17 2037.05 3215.25 3360.05 1198.03 0.00 0.00 0.00 10871.55 1974 0.00 0.00 0.00 0.00 1773.25 1991.43 3481,04 2640.04 1098.86 0.00 0.00 0.00 10984.62 1975 0.00 0.00 0.00 0.00 1638.37 725.96 3802.37 3100.21 1648.29 128.93 0.00 0.00 11044.13 1976 0.00 0.00 0.00 0.00 601.00 2009.29 3687.33 3028.80 1824.82 0.00 0.00 0.00 1115124 1977 0.00 0.00 0.00 374.88 1309,11 2828.47 2191.77 2169.95 1324.98 255.87 0.00 0.00 10455.03 1978 0.00 0.00 0.00 846.36 155.90 1363.85 3723.03 3086.33 1866.87 190.42 0.00 0.00 11232.76 1979 0.00 0.00 0.00 0.00 94.42 470.49 3611.95 1346.80 1813.12 115.64 0.00 0.00 7452.41 1980 0.00 0.00 0.00 0.00 0.00 2026.15 3227.35 3003.02 2045.39 265.00 0.00 0.00 10566.91 1981 0.00 0.00 0.00 328.27 1451.53 1539.39 3199.39 2856.24 1386.47 256.86 0.00 0.00 11018.15 1982 0.00 0.00 0.00 735.48 856.67 779.12 2864.17 3641.71 1263.69 0.00 0.00 0.00 10140.85 1983 0.00 0.00 0.00 0.00 0.00 1447.95 3756.75 3332.28 1548.92 289.19 0.00 0.00 10375.09 1984 0.00 0.00 0.00 0.00 1013.57 2160.03 3689.31 2719.38 1181.77 71.21 0.00 0.00 10835.27 1985 0.00 0.00 0.00 0.00 1195.85 2556.93 3001,63 2955.42 377.66 0.00 0.00 0.00 1008749 1986 0.00 0.00 0.00 . 0.00 1147.45 2494.45 3761.87 3596.09 1199.37 0.00 0.00 0.00 12199.23 1987 0.00 0.00 0.00 202.12 1654.24 2141.58 3389.50 2892.97 1297.21 749.53 0.00 0.00 12327,14 1988 0.00 0.00 0.00 0.00 693.23 _ 2305.42 2958.39 2970.89 1284.52 425_26 0.00 0.00 10637.72 1989 0.00 0.00 0.00 176.73 1702.24 1170.56 3291.42 3192.05 877.30 0.00 0.00 0,00 10410.30 1990 0O0 0.00 0.00 0.00 1433.67 1801.61 3307.09 3011.35 1806.97 160.07 0.00 0.00 11520.76 1991 0.00 0.00 0.00 512.93 798.62 1617.54 2988.20 3022.66 1309,51 22.81 0.00 0.00 10272.27 1992 0.00 0.00 0.00 211.44 1655.23 1290.66 2602.95 2424.83 1439.23 1082.59 0.00 0.00 10706.93 1993 0.00 0.00 0.00 0.00 1412.65 1370.40 3751.99 3022.66 544.07 0.00 0.00 0.00 10101.77 1994 0.00 0.00 0.00 0.00 1744.89 2448,23 2958.99 1912.49 1098.07 0.00 0.00 0.00 10162.67 1995 0.00 0.00 190.42 582.95 90.45 618.26 3572.48 2390.12 1723.27 0.00 0.00 0.00 916794 1996 0.00 0.00 0.00 172.57 2713.82 2474.61 2620.60 2890.55 1441.05 0.00 0.00 0.00 12313.20 Average 0.00 0.00 4.05 272.80 1369.23 1759.75 2971.10 2686.57 1536.00 93.70 0.00 0.00 1069320 -5- Roberts 1- JA LEAF ENGINEERING,3/31/2002 Pes r Table 4 Farm Headgate Delivery of 8 Shares of Whitney Ditch (all values in acre-feet) .Ian Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Total 1950 0.00 0.00 0.00 19.47 36.46 52.35 60.86 57.70 32.41 0.00 0.00 0.00 259.25 1951 0.00 0.00 0.00 0.00 39.79 45.94 63.94 51.51 46.07 0.00 0.00 0.00 247.25 1952 0.00 0.00 0.00 0.00 35.57 53.91 66.01 59.77 37.68 0.00 0.00 0.00 252.94 1953 0.00 0.00 0.00 0.00 30.43 51.30 56.73 48.22 48.22 0.00 0.00 0.00 234.90 1954 0.00 0.00 0.00 40.42 30.43 50.41 48.39 44.47 42.32 0.00 0.00 0.00 256.44 1955 0.00 0,00 0.00 8.05 52.73 28.66 50.37_ 46.24 40.72 0.00 0.00 0.00 226.77 1956 0.00. 0.00 0.00 2.78 33.47 54.54 51.34 46.41 41.22 0.00 0.00 0.00 229.76 1957 0.00 0.00 0.00 0,00 0.80 31.61 58.25 57.24 33.68 0.00 0.00 0.00 181.58 1958 0.00 0.00 • 0.00 0.00 7.59 38.74 51.21 49.78 40.04 0.00 . 0.00 0.00 187.36 1959 0.00 0.00 0.00 0.00 22.76 53.32 57.37 51.89 47.54 0.00 0.00 0.00 232.88 1960 0.00 0.00 0.00 15.22 39.75 50.03 53.23 56.31 39.41 ' 0.00 0.00 0.00 253.95 1961 0.00 0.00 0.00 0.00 22.00 18.00 54.20 50.28 32.92 0.00 0.00 0.00 177.40 1962 0.00 0.00 0.00 18.33 46.58 36.80 52.01 56.52 31.32 0.00 a 0.00 0.00 241.56 1963 0.00 0.00 0.00 27.99 53.70 35.62 44.55 48.47 24.28 0.00 0.00 0.00 234.61 1964 0.00 0.00 0.00 0.00 46.28 30.64 64.99 50.96 50.41 0.33 0.00 0.00 243.66 1965 0.00 0.00 0.00 13.15 50.28 10.37 50.12 54.75 36.29 0.00 0.00 0.00 21496 1966 0.00 0.00 0.00 8.77 54.50 28.62 56.3! 54.50 28.96 0.00 0.00 0.00 231.66 1967 0.00 0.00 0.00 2.11 36.00 12.86 34.60 56.23 36.97 2.28 0.00 0.00 181.05 1968 0.00 0.00 0.00 0.00 39.87 43.50 58.67 56.56 42.66 0.00 0.00 0.00 24126 1969 0.00 0.00 0.00 3.88 33.51 36.92 70.68 62.13 33.09 0.00 0.00 0.00 240.21 1970 0.00 0.00 0.00 0.00 37.89 30.35 61.96 56.48 36.67 0.00 0.00 0.00 223.35 1971 0.00 0.00 0.00 5.56 5.14 46.32 66.51 59.22 25.67 0.00 0.00 0.00 208.42 1972 0.00 0.00 0.00 18.67 55.30 31.27 63.65 50.54 12.81 5.65 0.00 0.00 237.89 1973 0.00 0.00 0.00 0.00 22.55 43.29 68.32 71.40 25.46 0.00 0.00 0.00 231.02 1974 0.00 0.00 0.00 0.00 37.68 42.32 73,97 56.10 23.35 0.00 0.00 0.00 233.42 1975 0.00 0.00 0.00 0.00 34.82 15.43 80.80 65.88 35.03 2.74 0.00 0.00 234.70 1976 0.00 0.00 0.00 0.00 12.77 42.70 78.36 64.36 38.78 0.00 0.00 0.00 236.97 1977 0.00 0.00 0.00 7.97 27.82 60.10 46.58 46.11 28.16 5.44 0.00 0.00 222.18 1978 0.00 0.00 0.00 17.99 3.31 28.98 79.11 65.58 39.67 4.05 0.00 0.00 238.69 1979 0.00 0.00 0.00 0.00 2,01 10.00 76.75 28.62 38.53 2.46 0.00 0.00 158.37 1980 0.00 0.00 0.00 0.00 0.00 43.06 68.58 63.81 43,46 5.63 0.00 0.00 224.54 1981 0.00 0.00 0.00 6.98 3085 32,71 67.99 60.70 29.46 5.46 0.00 0.00 234.15 1982 0.00 0.00 0.00 15.63 18.20 16.56 60.86 77.39 26.85 0.00 0.00 0.00 215.49 1983 0.00 0.00 0.00 0.00 0.00 30.77 79.83 70.81 32.91 6.15 0.00 0.00 220.47 1984 0.00 0.00 200 0.00 21.54 45.90 78.40 57.79 25.11 1.51 0.00 0.00 230.25 1985 0.00 0.00 0.00 0.00 25.41 54.33 63.78 62.80 8.03 0.00 0.00 0.00 214.35 1986 0.00 0.00 0.00 • 0.00 24.38 53.01 79.94 76.42 25.49 0.00 0.00 0.00 259.24 1987 0.00 0.00 0.00 4.30 35.15 45.51 72.03 61,48 27.57 15.93 0.00 0.00 261.97 1988 0.00 0.00 0.00 0.00 14.73 48.99 62.87 63.13 27,30 . 9.04 0.00 0.00 22606 1989 0.00 0.00 0.00 3.76 36.17 24.87 69.94 67.83 18.64 0.00 0.00 0.00 221.21 1990 0.00 0.00 0.00 0.00 30.47 38.28 70.28 63.99 38.40 3.40 0.00 0.00 244.82 1991 0.00 0.00 0.00 10.90 16.97 34.37 63.50 64.23 27.83 0.48 0.00 0.00 218.28 1992 0.00 0.00 0.00 4.49 35.17 27.43 55.31 51.53 30.58 23.01 0.00 0.00 227.52 1993 0.00 0.00 0.00 0.00 30.02 29.12 79.73 64,23 11.56 0.00 0.00 0.00 214.66 1994 0.00 0.00 0.00 0.00 37.08 52.02 62.88 40.64 23.33 0.00 0.00 0.00 215.95 1995 0.00 0.00 4.05 12.39 I.92 13.14 75.92 50.79 36.62 0.00 0.00 0.00 194.83 1996 0.00 0.00 0.00 3,67 57.67 52.59 55.69 61.42 30.62 0.00 0.00 0.00 261.66 Average 0.00 0.00 0.09 5.80 29,10 37.39 63.14 57.09 32.64 1.99 0.00 0.00 227.23 -6- Roberts II161 LEAF ENGINEFRING,3/31/2002 Table 5 Net Depletion of 8 Shares of Whitney Ditch (all values in acre-feet) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Total 1950 0.00 0.00 0.00 0.33 6.62 25.36 33.47 31.74 17.83 0.00 0.00 0.00 1 15.35 1951 0.00 0.00 0.00 0.00 15.89 19.98 34.07 28.33 19.70 0.00 0.00 0.00 117.97 1952 0.00 0.00 0.00 0.00 8.75 29.65 36.30 32,87 20.72 0.00 0.00 0.00 12829 1953 0.00 0.00 0.00 0.00 12.25 28.21 31.20 26.52 26.52 0.00 0.00 0.00 124.70 1954 0.00 0.00 0.00 22.23 16.74 27.73 26.61 24.46 23.27 0.00 0.00 0.00 141.04 1955 0O0 0.00 0.00 4.43 28.46 15.76 27.70, 25.43 2239 0.00 0.00 0.00 124.17 1956 0.00 0.00 0.00 1.53 18.41 30.00 28.24 25.52 22.67 0.00 0.00 0.00 126.37 1957 0.00 0.00 0.00 0.00 0.44 17.39 32.04 31.48 18.52 0.00 0.00 0.00 99.87 1958 0.00 0.00 • 0.00 0.00 4.17 21.30 28.17 27.38 22.02 0.00 . 0.00 0.00 103.04 1959 0.00 0.00 0.00 0.00 12.52 29.33 31.55 28.54 26.15 0.00 0.00 0.00 128.09 1960 0.00 0.00 0.00 8.37 15.29 27.52 29.28 30.97 21.68 ' 0.00 0.00 0.00 133.11 1961 0.00 0.00 0.00 0.00 12.10 9.90 29.81 27.66' 18.11 0.00 0.00 0.00 97.58 1962 0.00 0.00 0.00 10.08 16.09 14.89 28.61 31.09 17.22 0.00 s 0.00 0.00 117.98 1963 0.00 0.00 0.00 15.39 28.49 19.59 24.50 26.66 13.35 0.00 0.00 0.00 127.98 1964 0.00 0.00 0.00 0.00 25.45 16.85 35.75 28.03 27.73 0.21 0.00 0.00 134.02 1965 0.00 0.00 0.00 7.23 25.34 5.70 27.56 30.11 19.96 0.00 0.00 0.00 115.90 1966 0.00 0.00 0.00 4.82 27.92 15.74 30.97 29.97 15.93 0.00 0.00 0.00 125.35 1967 0.00 0.00 0.00 1.16 19.80 7.07 19.03 30.93 20.33 1.25 0.00 0.00 99.57 1968 0.00 0.00 0,00 0.00 18.08 23.92 32.27 331.11 23.46 0.00 0.00 0.00 128.84 �..., 1969 0.00 0.00 0,00 2.13 18.43 20.31 38.88 34.17 18.20 0.00 0.00 0.00 132.12 1970 0.00 0.00 0.00 0.00 20.84 16.69 34.08 31.06 20.17 0.00 0.00 0.00 122.84 1971 0.00 0.00 0.00 3.06 2.83 25.48 36.58 32.57 14.12 0,00 0.00 0.00 114.64 1972 0.00 0.00 0.00 10.27 23.95 17.20 35.01 27.80 7.05 3.1I 0.00 0.00 124.39 1973 0.00 0.00 0.00 0.00 12,40 23.81 37.58 39.27 14.00 0.00 0.00 0.00 127.06 1974 0.00 0.00 0.00 0.00 20.72 23.27 40.68 30.86 12.84 0.00 0.00 0.00 128.37 1975 0.00 0.00 0.00 0.00 18.46 8.48 44.44 36.23 19.26 1.51 0.00 0.00 128.38 1976 0.00 0.00 0.00 0.00 7.02 23.48 43.10 35.40 21.33 0.00 0.00 0.00 130.33 1977 0.00 0.00 0.00 4.38 15.30 33.06 25.62 25.36 15.49 2.99 0.00 0.00 122.20 1978 0.00 0.00 0.00 9.89 1,82 15.94 43,51 36.07 21.82 2,23 0.00 0.00 131.28 1979 0.00 0.00 0.00 0.00 1.10 5.50 42.21 15.74 21.19 1.35 0.00 0.00 87.09 1980 0.00 0.00 0.00 0.00 0.00 23.68 37.72 35.10 23.91 3.10 0.00 0O0 123.51 1981 0.00 0.00 0.00 3.84 15.87 17.99 37.39 33.38 16.20 3.00 0.00 0.00 127.67 1982 0.00 0.00 0.00 8.60 10.01 9.11 33.47 42.56 14.77 0.00 0.00 0.00 118.52 1983 0.00 0.00 0.00 0.00 0.00 14.31 37.27 38.95 18.10 3.38 0.00 0.00 112.01 1984 0.00 0.00 0.00 0.00 11.85 25.25 43.12 31.78 13.81 0.83 0.00 O00 126.64 1985 0.00 0.00 0.00 0.00 13.98 29.88 35.08 34.54 4.41 0.00 0.00 0.00 117.89 1986 0.00 0.00 0.00 ' 0.00 13.41 29.15 43.97 42.03 14.02. 0.00 0.00 0.00 142.58 1987 0.00 0.00 0.00 2.36 16.86 25.03 39.61 33.81 15.16 8.76 0.00 0.00 141.59 1988 0.00 0.00 0.00 0.00 8.10 26.94 34.58 34.72 15.01 4.97 0,00 0.00 124.32 1989 0.00 0.00 0.00 2.07 19.89 13.68 38.47 37.31 10.25 0.00 0.00 0.00 121.67 1990 0.00 0.00 0.00 0.00 16.76 21,06 38.65 35.20 21.12 1.87 0.00 0.00 134.66 1991 0O0 0.00 0.00 5.99 9.33 18.91 34.92 35,33 15.30 0.27 0.00 0.00 120.05 1992 0.00 0.00 0.00 2.47 19.35 15.08 30.42 28.34 16.82 12.65 0.00 0.00 125.13 1993 0.00 0.00 0.00 0.00 16.51 16.02 43.85 35,33 6.36 0.00 0.00 ' 0.00 118.07 1994 0.00 0.00 0.00 0.00 20.39 28.61 34.58 22.35 12.83 0.00 0.00 0.00 118.76 1995 0.00 0.00 2.23 6.80 1.06 7.23 41.75 27.93 20.14 0.00 0.00 0.00 107.14 1996 0.00 0.00 0.00 2.02 26.52 28.92 30.63 33.78 16.84 0.00 0.00 0.00 138.71 Average 0.00 0.00 0,05 2.97 14.37 20.21 34.56 31.40 17.83 1.10 0.00 0.00 122.49 _7_ Roberts HIiA LEAF ENGINEERING.3/31/2002 Table 6 Lagged ground water returns 8 shares Whitney. Ditch (all values in acre-feet) Jan Feb Mar A r Ma Jun -Jul Au Se Oct Nov Dec Year Total 1950 0.00 0.00 0.00 0.48 5.09 9.69 13.08 15.51 16.47 15.51 11.39 8.72 95.94 1951 5.27 3.82 3-64 2.91 3.09 5.46 8.73 1146 12.18 12.73 9.46 7.46 86.19 1952 5.16 4.07 3.60 3.13 3.13 5.79 8.61 10.96 11.74 1142 8.61 6.89 83.10 1953 5.08 3.81 3.67 3.10 3.10 4.79 7.33 9.03 9.59 10.15 7.61 6.20 73.47 1954 4.97 3.87 3.59 3.32 5.39 6.08 8.01 9.12 9.39 9.67 7.46 6.08 76.94 1955 4.71 3.66 3.53 3.14 3.53 5.62 6.54 7.98 8.50 8,89 6.80 5.49 68.40 1956 4.64, 3.71 3.45 3.05 3.18 4.64 7.03 8.48 8.88 9.15 7.03 5.70 68.93 1957 4.28 3.33 3.21 2.74 2.62 2.50 4.04 630 7.49 7.61 5.71 4.64 • 54.48 1958 4.14 3.26 . 3.14 2.64 2.51 2.76 4.77 6.65 7.53 7.91 6.02 4.89 56.22 1959 4.44 3.47 3.47 2.92 2.92 4.03 6.67 8.75 9.44 10.00 7.64 6.11 69.86 1960 5.16 4.16 3.87 3.44 4.30 6.02 8.17 9.75 10.46 10.61 8.03 6.59 80.56 1961 4.27 3.37 3.26 2.81 2.69 3.37 4.04 5.95. 6.85 6.96 5.28 4.38 53.22 1962 5.07 4.00 3.84 3.54 4.61 6.76 8.30 9.99 10.9E 10.61 % 8.15 661 82.39 1963 4.62 3.59 3.59 3.21 4.75 6.54 7.57 8.34 8.73 8.34 6.42 5.39 71.09 1964 4.69 3.88 3.61 3.21 3.35 5.22 6.56 8.84 9.51 10.17 7.76 6.29 73.10 1965 4.81 3.82 3.70 3.20 3.94 5.54 5.67 7.15 8.13 8.38 6.41 5.30 66.04 1966 4.66 3.63 3.63 3.24 3.76 5.83 6.87 8.55 9.20 8.94 6.87 • 5.70 70.88 1967 4.20 3.30 3.18 2.84 2.95 4.09 4.32 5.34 6.71 7.16 5.57 4.66 54.32 1968 4.70 3.87 3.60 3.18 3.32 5.25 7.19 9.13 10.09 10.37 7.88 6.36 74.95 1969 4.98 3.83 3.71 3.32 3.45 4.73 6.39 8.94 9.84 9.58 7.28 6.01 72.06 1970 4.78 3.80 3.68 3.19 3.19 4.66 5.88 7.96 8.82 8.82 6.74 5.51 67.01 1971 4.55 3.59 3.47 . 3.11 3.11 3.23 5.39 7.79 8.74 8.14 6.23 5.15 62.52 1972 4.80 4.00 3.73 3.33 4.53 6.66 7.73 9.59 9.86 8.66 6.93 5.86 75.67 1973 4.68 3.67 3.67 3.16 3.16 4.05 6.07 8.60 9.99 9.36 7.08 5.82 69.31 1974 4.86 3.74 3.74 3.24 3.24 4.74 6.60 9.10 9.60 8.85 6.73 5.61 70.04 1975 4.84 3.82 3.82 3.31 3'.31 4.58 5.34 8.65 9.93 9.67 7.51 6.11 70.88 1976 4.99 4.12 3.87 3.37 3.24 3.62 5.86 8.86 9.85 9.73 7.48 6.11 71.10 1977 4.88 3.81 3.69 3.21 3.57 4.52 7.02 7.97 8.21 7.97 6.43 5.36 66.66 1978 4.86 3.84 3.7I 3.45 4.09 3.84 5.37 8.57 9.85 9.97 7.67 6.39 7161 1979 4.12 3.22 3.11 2.71 2.61 2.41 3.01 5.63 5.73 6.13 4.82 4.02 47.52 1980 4.48 3.69 3.43 3.03 2.90 2.77 5.27 8.17 9.62 9.89 7.78 6.33 6736 1981 5.06 3.92 3.80 3.29 3.67 4.68 6.20 8.60 9.49 9.11 7.21 595 70.99 1982 4.65 3.70 3.58 3.22 3.82 4.17 4.77 7.16 9.07 8.59 6.56 5.37 64.65 1983 5.10 4.02 3.89 3.49 3.22 3.09 5.10 8.99 - 10.60 10.20 8.05 6.57 72.31 1984 4.88 4.03 3.78 3.30 3.17 4.03 6.22 8.91 9.52 8.79 6.83 5.61 69.08 1985 4.59 3.64 3.53 3.06 , 3.06 4.00 6.35 8.35 9.05 7.76 5.88 5.06 64.31 1986 4.79 3.86 3.86 . 3.32 3.32 4.39 7.18 10.24 11.57 10.64 7.98 6.65 77.78 1987 5.52 4.33 4.20 3.68 3.94 5.25 7.36 9.85 10.64 10.11 8.41 6.96 80.26 1988 5.15 4.21 3.86 3.39 3.27 3.74 5.96 8.07 9.01 8.54 690 5.73 67.83 1989 4.81 3.75 3.75 3.28 3.40 4.57 5.63 8.09 9.15 . 8.32 6.33 5.28 6636 1990 4.85 3.95 3.83 3.32 3.44 4.59 6.38 8.93 10.07 9.95 7.78 6.38 73.44 1991 4.89 3-84 3.72 3.26 3.72 4.07 5.47 7.68 8.72 8.38 6.40 5.35 65.49 1992 4.81 3.94 3.70 3.33 3.57 4.81 5.79 7.64 8.38 8.50 7.52 6.28 68.26 1993 4.84 3.80 3.69 3.11 3.11 4.15 5.41 8.29 9.10 7.83 5.99 5.07 64.40 1994 4.40 3.57 3.45 3.09 3.09 4.64 6.78 8.44 8.32 7.85 6.06 5.11 64.80 1995 4.29 3.36 3.36 3.13 3.48 3.25 3.94 6.96 7.77 7.89 6.03 499 58.46 1996 5.07 4.23 3.94 3,52 3.94 6.62 8.87 10.42 11.27 10.70 7.32 6.06 8197 • Average 4.67 3.70 3.56 3.13 3.49 4.68 6.40 8.59 9.44 9.24 7.11 5.83 69.83 _8_ Roberts IRA LEAF ENGINEERING.3/312002 r Table 7 Surface water returns 8 shares Whintey Ditch (all values in acre-feet) Jan Feb Mar A r Ma Jun Jul Au Se Oct Nov Dec Year Total 1950 0.00 0.00 0.00 6.38 9.95 9.00 9.13 8.65 ' 4,86 0.00 0.00 0.00 4796 1951 000 0.00 0.00 0.00 7.97 8.65 9.96 7.73 8.79 0.00 0.00 0.00 43.09 1952 0.00 0.00 0.00 0.00 8,94 8.09 9.90 8.97 5.65 0.00 0.00 000 41.55 1953 0.00 0.00 0.00 0.00 6.06 7_70 8.51 7.23 7.23 0.00 0.00 0.00 36.73 1954 0.00 0.00 0.00 6.06 4.56 7.56 7.26 6.67 6.35 0.00 0.00 0.00 38.46 1955 0.00 0,00 0.00 1.21 8.09 4.30 7.56 6.94 6.11 0.00 0.00 0.00 34.20 1956 0.00 0.00 0.00 0.42 5.02 8.18 7.70 - 6.96 6.18 0.00 0.00 0.00 34.46 1957 0.00 • 0.00 0.00 0.00 0.12 4.74 8.74 8.59 5.05 0.00 0.00 0.00 27.23 1958 0.00 0.00 0.00 0.00 1.14 5.81 7.68 7.47 6.01 0.00 0.00 0.00 28.10 1959 0.00 0,00 '0.00 0.00 3.41 8.00 8.61 7'.78 7.13 0.00 '0.00 0.00 34.93 1960 0.00 0.00 0.00 2.28 8.15 7.50 7.98 8.45 5.91 0.00 0.00 0.00 40.28 1961 0.00 0.00 0.00 0.00 3.30 2.70 8.13 7.54 4.94 0.00 0.00 0.00 26,60 1962 0.00 0.00 0.00 2.75 10.16 7.30 7.80 8.48 ' 4.70 0.00 . 0.00 0.00 41.19 1963 0.00 0.00 0.00 4.20 8.40 5.34 6.68 7.27 3.64 0.00 0.00 0.00 35.54 1964 0.00 0.00. 0.00 0.00 6.94 4,60 9.75 7.64 7.56 0.06 0.00 0.00 36.54 1965 0.00 0.00 0.00 1.97 8,31 1.56 _ 7.52 8.21 5.44 0.00 0.00 0.00 33.02 1966 0.00 0.00 0.00 1.32 8.86 4.29 8.45 8.18 4.34 0.00 0.00 0.00 35.43 1967 0.00 0.00 0.00 0.32 5.40 1.93 5.19 8.43 5.55 0.34 0.00 0.00 27.16 1968 0.00 0.00 0.00 0.00 7.26 6.53 8.80 8.48 6.40 0.00 0.00 0.00 37.47 1969 0.00 0.00 0.00 0.58 5.03 - 5.54 10.60 9.32 4.96 0.00 0.00 0.00 36.03 tr-^, 1970 0.00 0.00 0.00 0.00 5.68 • 4.55 9.29 8.47 5.50 0.00 0.00 0.00 33.50 1971 0.00 0.00 0.00 0.83 0.77 6.95 9.98 8.88 3.85 0.00 0.00 0.00 31,26 1972 0.00 0.00 0.00 2.80 10.45 4.69 9,55 7.58 1.92 0.85 0.00 0.00• 37.83 1973 0.00 0.00 0.00 0.00 3.38 6.49 10.25 10,71 3.82 0.00 0.00 0.00 34.65 1974 0.00 0.00 0.00 0.00 5.65 6.35 11.10 8.41 3.50 0.00 0.00 0.00 35.01 1975 0.00 0.00 0.00 0.00 5.45 2.32 ' 12.12 9.88 . 5.26 0.41 0.00 .. 0.00 3544 1976 0.00 0.00 0.00 0.00 1.92 6.41 11.75 9.65 5.82 0.00 0.00 0.00 35.54 1977 0.00 0.00 0.00 1.20 4.17 9.01 6.99 6_92 4.22 0.82 000 0.00 33.32 1978 0.00 0.00 0.00 2.70 0.50 4.35 11.87 9.84 5.95 0.61 0.00 0.00 35.80 1979 0.00 0.00 0.00 0.00 0.30 1.50 11.51 4.29 5.78 0.37 0.00 0.00 23.76 1980 0.00 0.00 0.00 0.00 0.00 6.46 10.29 9.57 6.52 0.84 0.00 0.00 33.67 1981 0.00 0.00 0.00 1.05 4.99 4,91 10.20 . 9.11 4.42 0.82 0.00 0.00 35.49 1982 0.00 0.00 0.00 2.34 2.73 2.48 9.13 11.61 4.03 000 0.00 0.00 32.32 1983 0.00 0.00 0.00 0.00 0.00 5.49 14.19 10.62 4.94 0.92 0.00 0,00 36.15 1984 0.00 0.00 0.00 0.00 3.23 6.88 11.76 8.67 • 3.77 0.23 0.00 0.00 34.53 1985 0.00 0.00 0.00 0.00 3.81 8.15 9.57 9.42 1.21 0.00 000 0.00 32.15 1986 0.00 0.00 0.00 , 0.00 3.66 7.95 11.99 11,46 3.82 0.00 0.00 000 38.88 1987 0.00 0.00 0.00 0.65 6.10 6.83 10.81 9.22 4.14 2.39 0.00 0.00 40.12 1988 0.00 0.00 0.00 0.00 2.21 7.35 943 9.47 4.10 1.36 0.00 000 33.91 1989 0.00 0.00 0.00 0.56 5.43 3.73 10.49 10.17 2.80 0.00 0.00 000 33.18 • 1990 0 00 0.00 0.00 0.00 4.57 • 5.74 10.54 9.60 5.76 0.51 0.00 0.00 36.72 1991 0,00 0.00 0.00 1.64 2.55 5.15 9.53 9.63 4.18 0.07 0.00 0.00 32.74 1992 0.00 0.00 0.00 0.67 5.27 4.12 '8.30 7.73 4.59 3.45 0.00 000 34.13 1993 0.00 0.00 0.00 0.00 4.50 4.37 11.96 9.63 1.73 0.00 0.00 • 0.00 32.19 1994 0.00 0.00 0.00 0.00 5,56 7,80 9.43 6.10 3.50 0.00 0.00 0.00 32.39 1995 0.00 0.00 0.61 1.86 0.29 1.97 11.39 7.62 5.49 0.00 0.00 0.00 29.23 1996 0.00 0.00 0.00 0.55 10.38 7.89 8.35 9.21 4.59 0.00 0.00 0.00 40.98 Average 0.00 0.00 0.01 0.94 4.91 5.73 9.52 ' 8.56 4.94 0.30 0.00 000 34.91 e-. -9- Robcns MIA LEAF ENGINEERING,3/31/2002 Table 8 shows a summary of the 1950 - 1996 study period. Table 8 presents the historic use and return flow attributed to the 8 shares of Whitney Ditch used on the entire 74 acres and the pro- rated historic use and return flows for the 8 shares used on the 74 acres. Plan for Augmentation Five of the 8 shares of Whitney Ditch will be used to replace the out-of-priority depletions attributed to 33 acres of evaporation from the aggregate mine, shown in Figure 1. Table 9 contains the monthly estimated depletions attributed to the aggregate mines. The total annual free water surface depletions for the mine averages 78.99 acre-feet. The on-site evaporative losses for the aggregate mine was lagged back to the Cache la Poudre River using the State Engineer's Stream Depletion Model. The lagging factors contained in column [7] of Table 9.were estimated using a distance of 2,000 feet from the river, transmissivity of 120,000 gallons per day per foot and a storage coefficient of 0.20. Table 10 presents a summary of net river impact after the release of the 5 shares of Whitney Ditch back to the Cache la Poudre River at the Roberts aggregate mine. As can be seen from Table 10, the release of the 5 shares will result in an excess of 50.03 acre-feet during the months of May thru September and a deficit of 60.82 acre-feet during the months of October thru April. The 60.82 acre-feet of winter depletion will be augmented, via a contract with Hall-Irwin Corporation, from the 300 acre-feet lined ponds on the Firestein aggregate mine located to the south of the Roberts' property. The 50.03 acre-feet of summer excess will be stored in the same 300 acre-feet lined storage ponds on the Firestein aggregate mine. During times of senior downstream call, water from the lined storage lakes will be released to offset the evaporative depletions from the Roberts gravel lake and the historic return flows attributed to the Roberts 5 shares of Whitney Ditch. In addition to the augmentation of the 33 acre gravel pit, Mr. Roberts proposes to use his remaining 3 shares of Whitney Ditch to irrigate 30 acres of a subdivision to be constructed around the north and east of the reclaimed gravel lake. The 2 shares will be released to the river for augmentation and water will be pumped from the 33 acre lake. Table 11 shows the irrigation water requirement for the 15 acres of subdivision, the historic returns attributed to the 3 shares of Whitney Ditch, and net river depletion. The irrigation of 15 acres of lawn via water pumped from the 30 acre gravel lake will result in a summer excess of 23.58 acre-feet during the months of May through September and a winter deficit of 12.35 acre- feet during the months of October through April. The 12.35 acre-feet of summer excess will be stored in the 300 acre-feet lined gravel lakes on the Hall-Irwin Friestein property and the 15.66 acre-feet of winter deficit will be augmented via r -I0- ) fable 8 Summary of Whitney Ditch Historic Use Analysis(1950-1996) (all values in acre-feet) Jan Feb Mar Apr May Jan Jul Aug Sep Oct Nov Dec Total (I] River Diversions B Shares Whitney Ditch 000 000 0.10 6.82 3423 43.99 74.28 67.16 38,40 234 0.00 0,00 26733 121 FRGD S Shares Whitney Ditch 0.00 0.00 0.09 580 29.10 37.39 63,14 57.09 32.64 1.99 0.00 000 227.23 (3]Mated Ditch Lose&Shares Whitney Ditch. 3.64 3.16 3.28 2.99 292 2 74 2.90 3.09 3 35 3.86 3.95 4 D9 39.98 14]Irrigation Water Requirement on 74 Amen 0,00 0.00 0 00 2.86 10.75 26.14 • 40,56 35.92 17.91 5.78 I I S 0 35 14I 45 15] CD.8 Shares of Whitney Ditch 000 0.00 0.05 2.97 1437 2021 3456 3140 17.83 1.10 0.00 0.00 12249 161 Lagged GW Remus S Shares Whitney Ditch 467 3.70 3.56 3.13 3.49 4,68 6.40 8.59 944 924 7.11 5.83 69.83 1 17]SW RetuntS 8 Shares Whintey Ditch 0.D0 0 00 0.01 0.94 4.91 5.73 9.52 8.56 4 94 0.30 0.00 0 00 34.91 J 181 Total RetsasuSShares Whitney Ditch. 4.67 3,70 3.57 408 839 10.40 15.93 17.IS 14.37 954 7.11 583 104.75 [9]RiverDWeniona S Shares Whitney Ditch 0.D0 0 00 0,05 341 17.12 22 00 37,14 33.58 19.20 1.17 D.DO 0 OD 133.66 [10)811GD 5 Shares Whitney Ditch - 0.00 0.00 0.04 2.90 14.55 1870 31.57 2854 16.32 1.00 000 0,00 113.62 Ill] Gagged Ditch9.oss 5 Shares Whitney Ditch 1.82 158 164 1.50 1.46 1.37 1.45 1.55 1.68 1.93 1.97 2 01 19 99 1121 Irrigation Water Requirement on 53 Acres 0.00 0.00 0.00 2.08 7.80 1898 2945 2608 13.00 420 086 0.25 10270 1131 CU 5 Shams of Whitney Ditch 0 00 0,00 0.03 1.85 8 98 12.63 21 60 19 62 11.14 0 68 0.00 200 76.55 _, 114]Lagged'CWRetums 5 Shares Whitney Ditch 2.92 2.31 2.22 196 2.18 2,92 4.00 537 5.90 5.78 444 3.65 ' 43.65 1151 SW Returns 5 Shares Whiney Ditch 0 O 0 00 0.01 0,59 3.07 3 58 5,95 5 35 3-08 0.19 0.00 000 21.82 • 116]Total Returns 5 Shares Whitney Ditch 2 92 2 31 2 23 '-.55 525 650 9.95 10.72 8 98 5 96 444 3 65 6517 River Depletions 1171 Net Depletions vs/DitehLeas -4.74 -3.89 -3.82 -0.63 10,41 1412 25.74 21.32 8.54 -6.73 -641 -369 48.21 118] Net Depletions w/o Ditch Loss -292 -2.31 -2.18 0,86 1187 15 49 27,19 22.86 10 22 -479 -4 44 -3 65 68 20 Pit Depletions 5 23 4.45 4.21 4.60 5.46 6.55 772 8.58 8.82 8 35 757 6.48 78.02 -8.14 -6.76 -6.39 -I 74 6.41 8.94 1946 1428 I40 -13.14 -12.01 -1012 . -9.83 (I]Pro-rata river headgate diversions 8 shares of Whitney Ditch 121 Farm headgate deliveries of 7 shares of Whitney Ditch-assuming a 15%ditch loss ' [31 Lagged ditch loss-assuming average SDF—750 days ) 14I Irrigation water requirement for 74 acres from modified Blaney-Griddle-includes effective precipitation and soil moisture bagel [5] Consumptive use attributed to 8 shares of Whitney Ditch-assuming 55%max application efficiency 161 Lagged ground water returns for 8 shares-assuming 67%of total return volume is sub-surface and an parcel SDF—174 days 17] Surface valet retnms for 8 shares of Whitney Ditch-assuming 33%of return volume is surface water 18]Total rearm-row[6]=row[7] - (9] Pro-rata liver headgate diversions 8 shares of Whitney Ditch [I 01 Farm headgate deliveries of 5 shares of Whitney Ditch-assuming a 15%ditch loss s, Ill]Lagged ditch loss for 5 shares-assuming average SDF=750 days 112] Irrigation water requirement for 53 acres from modified Blaney-Criddle-includes effective precipitation and soil moisture beget 1131 Consumptive use annbured to 5 shares of Whitney Ditch-assuming 55%max application efficiency 114] Lagged ground water returns for 5 shares-assuming 67%of total return volume is sub-surface and an parcel SDF—,61 days [15]Surface water returns for 5 shares of Whitney Ditch-assuming 33%ofretum volume is surface water 116]Total return-row114]=row115] 11 71 Net river depletions for 5 shares of Whiney Ditch-row191-row[I 11-row[161 • 118] Net river depletions for 5 shares of Whiney Ditch-row[91-row116] , Roberts HUA 1,1 AI.l-NOINFERING 428200'- I Table 9 Summary of Future FWS Evaporation-Robert Pit Percent of Gross Average Effective Net Net Water Surface Lagging Lagged Month Annual Evaporation Precipitation Precipitation Evaporation Evaporation for , Factors Evaporative Evaporation 33 Losses Acres (inches) (inches) (inches) (inches) - (acre-feet) (%) (acre-feet) [I] [2] 131 [4] [5] [6] [7] [81 January 3.0% 1.16 0.43 - 0.30 0.85 2.35 6.7% 529 February 3.5% 1.35 0.33 0.23 1.12 3.07 • 5 7% 4.50 March 5.5% 2.12 1.09 0.76 1.35 3.72 5.4% 427 April 9.0% 3.47 1.54 1.08 2.39 6.56 5.9% 4.66 • May 12.0% 4.62 2.56 1.79 2.83 7.78 7.0% 5.53 i^"\ June 14.5% 5.58 2.03 1.42 4.16 11.44 8.4% 6.64 July 15.0% 5.78 1.47 1.03 4.75 13.05 9.9% 7.82 August 13.5% 5.20 1.18 0.83 4.37 12.02 11.0% 8.69 September 10.0% 3.85 1.32 0.92 2.93 • 8.05 11.3% 8.93 October 7.0% 2.70 0.87 0.61 2,09 5.74 10.7% 845 November 4.0% 1.54 0.70 0.49 LOS 2.89 9.7% 7.66 December 3.0% 1.16 0.45 0.32 0.84 2.31 8.3% 656 Total 100.0% 38.50 13.97 9.78 28.72 78.99 100.0% 78.99 [I From SB 120,the evaporation percentages are for gravel pits with elevations below 6,500 feet, [2 Equals Percent of Annual Evaporation times 38.5 inches. [3 From Colorado State University's Colorado Climate Center web page,http://ccc.atmos.colostate.edu for Windsor Weather Station. [4 Equals Column[31 times 70 percent. 70 percent value was taken from SB 120, I5 Equals Column[2]minus Column[4]. If the resultant value is less than zero then a zero is substituted. {6 Net evaporation from free water surface on 33 acres,equals column[5]/12'33 acres [7 From SE0 Stream Depletion Model. (Lk 2000 feet,T=120,000 gpd/foot,S=0.20) [8 Equals total of Column[6]times Column[7]. -12- Robcns llEA LEAF ENGINEERING,3/31/2002 • Table 11 Summary of Roberts Subdivision Depletions (all values in acre-feet) Jan Feb Mar Apr May Jun, Jul Aug Sep Oct Nov Dee Total [I] In.Water regm'at For 15 acres 0.00 0.00 0 00 2.00 3.00 7 00 8 00 7.00 4,00 2O0 0 00 u.00 33 O0 [2]Whitney Deliveries 3 Shares 0 00 0.00 0.03 2.05 10.27 13.20 2228 2D I5 11.52 070 0O0 0 00 ' 80 20 [3]Whitney Returns 1.75 1.39 1.34 153 3.15 3.90 5.97 6.43 5.39 3.58 2.66 2.19 39.28 [4]Net Weer Impact -175 -1.39 -1.31 -148 4.12 2.30 8.31 6.72 2.13 -4.88 -2.66 -2.19 7.92 [I] Irrigation water requirement for 15 acres of lawn irrigation [2]Pro-rated average for 3 shares of Whitney farm headgate deliver]es,row[to),Table 8 [3] Pro-rated average for 3 shares of Whitney Ditch river returns,row[16],Table 8 [4] Net river impact after delivery of 3 share of Whitney Ditch to river less returns and pit depletions,row(21-row[3]-row[I] ] • • • • • Roberts HUA LEAF ENGINEERING.4/28/2002 Table 10 Summary of Replacements (all values in acre-feet) • Is Feb Mar Apr May. Jun Jul Aug Sep Oct Nov Dec Total [I]Pit Depletions 5.29 4.50 4.27 4.66 5.53 6.64 7.82 8.69 8.93 8.45 7 66 6.56 78.99 [2]Whitney Deliveries 5 Shares 0.00 0.00 0.05 3.41 17.I2 22.00 37.14 33.58 19.20 1.17 0.00 0 D 133.66 [3]Whitney Returns 2.92 2.31 2.23 2.55 5.25 6.50 9.95 10.72 8.98 5.96 4.44 3.65 65.47 [4]Net River Dmpaet -8.21 -6.81 -645 -3.80 634 8.86 19.36 14.17 1.29 -13.25 -1210 -10.20 -10.79 II]Total of pit depletions from column[8]in Table 9 [2] Average Whitney farm headgate deliveries,row[10],Table 8 [3]Average river returns,row[16],Table 8 [4] Net river impact after delivery of 5 share of Whitney Ditch to river less returns and pit depletions,row[2]-row[3]-row[1] Roberts HUA LEAF ENGINEERING.4/28/2002 releases from the same 300 acre-feet lined gravel lakes. } Conclusions The historic consumptive use attributed to the 8 shares of Whitney Ditch averaged 122.49 acre- feet. This historic consumptive use will he used to offset evaporative depletions for 33 acres of free water surface from gravel pit and the 15 acres of irrigated lawn in the Roberts' subdivision. In addition, the historic return flows attributed to the 8 shares of Whitney Ditch will be replaced to the river during periods of downstream call that are senior to 2002. Water from lined gravel lakes on the Firestein parcel will be used to augment winter depletions and historic return flows. r -15- • .-. • • • PRELIMINARY DRAINAGE REPORT • FOR • ROBERTS PROPERTY PUD • CHANGE OF ZONE • • • • • • • • Prepared for: • William and Doloras Roberts • 12691 WCR 64'/: • Greeley, Colorado 80631 • Oak • • Prepared by: • • Rocky Mountain Consultants, Inc. 1900 S. Sunset Street, Suite 1-F • Longmont, Colorado 80501 • • • • • • • RMC JOB NO. 80.4205.002.00 • • • 414. • ROCKY MOUNTAIN CONSULTANTS, INC. September 2002 • n JLI GA 1_C'-I CoMPA"JY • • reN ENGINEER'S CERTIFICATION I hereby attest that this report for the final drainage design of Roberts PUD at Weld County Roads 64 1/2 and 27, Greeley, Colorado was prepared by me, or under my direct supervision, in accordance with the provisions of the City of Greeley Storm Drainage Design Criteria Manual for the owners. I understand that the City of Greeley does not and shall not assume liability for drainage facilities designed by others. 00 REG 0 .- w Ov +,F �^y;moo 0.1 30007 Mike Boden, P. . .1 :: Registered Professional En ONAL�av ^^ State of Colorado No. 30007 s. 0.1 ^ i 40.1 raN TABLE OF CONTENTS Page Engineer's Certification Intent 1 Design Reference 1 Existing Drainage Conditions Developed Drainage Conditions 2 Conclusion 2 ^ ^ APPENDICES Historic Drainage Analysis/Calculations Appendix A Developed Drainage Analysis/Calculations Appendix B Pond Volume Calculations Appendix C ^ ^ PLANS Historic Drainage Plan and Developed Drainage Plan Back Pocket Ook FINAL DRAINAGE REPORT FOR ROBERTS PROPERTY PUD-CHANGE OF ZONE AT GREELEY, COLORADO INTRODUCTION The Roberts Property is located in the southeast quarter, Section 30 Township 6 north, Range 66 west of the 6tb P.M., Weld County, Colorado. More specifically, the site is located on the southeast side of intersection of Weld County Road 64 YZ and Weld County Road 27. The total area of the site is approximately 79.61 acres. There are currently two existing buildings on the site that will be removed upon development. The proposed development of this site consists of ultra low-density residential development of 10 developed lots at roughly 2.5 acres each. Access to the proposed site is from WCR 64 %z. The property is bounded to the north by WCR 64 %Z, to the east by WCR 27, to the south and west by Hall-Irwin Corporation property. INTENT It is Rocky Mountain Consultants' ("RMC") intent to provide a preliminary drainage study in accordance with Section 10.12 of the Weld County Subdivision Ordinance 173-E for the request for Change of Zone concerning this property. As required by the County, this drainage report is submitted to describe the preliminary drainage design details for the property. DESIGN REFERENCE The City of Greeley Design Criteria and Construction Specifications Manual Volume II — Storm Drainage Design Criteria, herein referred to as the Storm Drainage Design Manual and the Urban Storm Drainage Criteria Manual provided the drainage design criteria for this report. Since all basins are less than 160 acres in area, the Rational Method was used to calculate storm flows. The values for runoff coefficients C, were taken from the Urban Storm Drainage Criteria Manual and rainfall intensities I, were taken from the City of Greeley Storm Drainage Design Manual. The 2-year and 10-year storm events were used for calculations involving the minor storm and the 100-year event was used for the major storm. EXISTING DRAINAGE CHARACTERISTICS Historically, the run-off from this property flows to three separate areas. The southwestern portion of the property(Basin A) flows to the south and discharges into the Whitney Ditch. The run-off from the northern portion of this property (Basin B) sheet flows from the west to the Preliminary Drainage Report 1 RMC Job No. 80.4205.002.00 northeast discharging into the roadside borrow ditch along WCR 64 %2 and 27. The run-off from the southern portion of the property (Basin C) drains to the south. The existing flow from the undeveloped site was calculated to be approximately 26.35 cfs for the 10 year storm from Basin A, 51.31 cfs for the 10 year storm from Basin B and 19.32 cfs for the 10 year storm from Basin C. The 100 year storm event flow from the undeveloped site was calculated to be approximately 47.41 cfs for Basin A, 92.32 cfs for Basin B and 34.73 cfs for Basin C. A description of calculations and spreadsheet of data is included in Appendix "A"of this report. DEVELOPED DRAINAGE CHARACTERISTICS The developed drainage is composed of one large basin for the entire property that is divided into eight sub-basins A thru H. Drainage from all developed lots, the proposed access road and open space areas will be directed to the proposed lake. There is a berm splitting the buffer area north of the access road directing the flow to the north or south. Flows south of the berm flow into the borrow ditch that runs parallel to the access road, denoted as Basins B, F, and G. Flows north of the berm flow into the borrow ditch that runs parallel to WCR 64-1/2, denoted as Basins D, E, and H. The total developed site runoff was calculated to be approximately 248.52 cfs for the 100 year storm and 131.81 cfs for the 10 year storm. The required detention for the site was calculated based on the equation detention method and is included in Appendix C of this report. The minimum volume of detention required for the 100 year storm is 7362 cf or 0.169 acre ft. This volume will be detained in the proposed lake. The lake overflow will discharge to the Whitney Ditch. Due to the size of the Lake the addition of the 247.96 cfs for the 100 year storm event from the development, the lake level will increase approximately 0.006 inches. A weir could be constructed to manage the increase of 0.006 inches but since this increase in water surface level is not significant enough to adversely affect the -- freeboard or the operation of the lake, RMC, on behalf of the owner would request that the flow from the development be discharged into the lake without modifying the outflow. CONCLUSION The proposed development will not adversely affect the existing drainage patterns surrounding the site. The historic discharge for the 10 year storm is 96.98 cfs and 100 year storm is 174.46 -. cfs. The developed discharge for the 10 year storm is 131.81 cfs and the 100 year storm is 248.52 cfs. The minimum volume of detention required for the 100 year storm is 7362 cf or 0.169 acre ft. This additional flow into the lake will raise the water surface level 0.006 inches which will not hinder the operation of the lake. A copy of the historic drainage calculations, developed drainage calculations, pond volume calculations, the historic drainage plan and the developed drainage plan are included in Appendix A, B, C and the back pocket of this report respectively. Preliminary Drainage Report 2 ^ RMC Job No. 80.4205.002.00 Pm ^ g^c A TETRA TECH COMPANY n y .w 4.ttyne, "1"r% y� %%' rLy fil e/ eek ^ d r ✓./ Iii d; > v �i' err r ✓/ -;' .041 "/5 ' -/, G� 4,c„-1,4,,,--# /�6/r .err'. :--1-r. ` a /el1y 0°4" ""' . a r eis APPENDIX A ^......, Historic Drainage Plan r i e , e. P1 OWN 4 , r6 r /�'/// ,,, Ira a/ " ^ .,..w, / //;% r� ,yf /� /r7 .19 it Ar r .„74,cif r , '% �i 7:"(,,,,,�rr/ 4-,,,:'Cl ✓i'!r r --/'.,7„„2 ^ . / / - -a. /. / / � / j / /s/ �ri P / "G,,' '''''''1/4"-4;."' /ice / es., i.! ./, :�_. "j /��/fir/' /.__ y "�/ x;.3c'';' ^ ^ Historic Drainage Plan Roberts Property PUD—Change of Zone Greeley, Colorado HISTORIC DRAINAGE ANALYSIS Historic runoff for 2, 10, and 100-year storm events were calculated. Design Reference: City of Greeley Design Criteria and Construction Specifications Manual dated July 1999. Urban Storm Drainage Criteria Manual dated March 1969 with revisions dated May 1, 1984 and November 1, 1990 .-, Design Storms: 2-year event; 10-year event; 100-year event Runoff Coefficients: 0.05 for the 2-year event, 0.35 for the 10-year event and 0.40 for the 100-year event, pursuant to the values provided in Table 3-1 of the Urban Storm Drainage Criteria Manual dated November 1, 1990 for historic flow analysis of lawns with clayey soils. Time of Concentration: As described in Section 3.4 of the Urban Storm Drainage Criteria Manual dated May 1, 1984, equation 3-2, the time of concentration ^ for undeveloped runoff was calculated, where the Time of Concentration: Te=t;+tt. Rainfall Intensities: Values were attained from Table 3.3 of the City of Greeley Design Criteria and Construction Specifications Manual dated July 1999 Included in this Appendix is the spreadsheet used to perform flow calculations. ^ Preliminary Drainage Report RMC Job No. 80.4205.002.00 r ) 1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) HISTORIC DRAINAGE PLAN Drainage CalculationslFlowrates ROBERTS PUD C VALUES: St 2: 087 HDR 2: 0.65 LDR 100: 0.80 Open 100: 0.40 Schl 2: 0.45 LDR 10: 0.40 Open 10: 0.35 LDR 2: 0.30 Open 2: 0.05 MDR 100 070 Ind 2: 0.71 SW 100: 0.70 MDR 10: 080 MDR2: 0.45 St 100: 003 HDR 100 0.80 Ind 100: 0.82 St 10: 0.90 FOR 10: 0.70 Basin Design Areas(acres) Composite C Flowlength Intensities O values(cfs) ID Point Total Streets LDR MDR HDR Open 2 year 10 year 100 year L(R) Tc 2 year 10 year 100 year 2 year 10 year 100 year A 21.95 0 0 0 0 21.95 0.05 0.35 0.40 1950 21 2.03 3.43 5.40 2.23 26.35 47.41 B 42.74 0 0 0 0 42.74 0.05 0.35 0.40 2500 24 2.03 3.43 5.40 4.34 51.31 92.32 C 14.92 0 0 0 0 14.92 0.05 0.35 0.40 1450 18 2.20 3.70 5.82 1.64 19.32 34.73 J\ Total 100 year flow from site 174.46 CFS I . .. , , . . , • , ,,......_ _ ..._ ............ • .. , ,,.. ._____ __.„..________/ „� ,a l - t a *. , 1 `EI3)r. f. •M j r 4-- +. \1 '•� t : i i z . 1.•� = t � ., 5 y1 imp - -,...__ �� t • � 41 5\ . _ ',:rr i , i ... . .. . , ; i ! III 'y \ .U 1 . °�11 do qi) \"J" ' ' . ----- i V ;,, ,� • • 1k i 1,f Viz,- ie I � �� .w '.1 �\ --l�fps.., ,- r~ Y I—+p '4J�:I I i i : f I M0. OCYR P q ^S OHS wa I HISTORIC DRAINAGE PLAN a ,',f_ @I° a _It i ROBERTS PROPERTY PUD ROOKY MOUNTAIN COMM IX IN F - T WILLIAM AND DOL0RES ROBERTS °""�. � r'1 r'1 Rrc A TETRA TECH COMPANY 00. 00. :% zc iGy- a by /.�� i/'/% 1'� f'/y �6 f ff i is '. / � yam, y s� � %� �� z ,� a/ } "s., "s,`/z //.,. .% y/ii :Ara ; i' �'�/ s am.( f' j/.'" 9 /9 1 / ma y/ / 3 rte+ 'm �"` i �� /%%/�; �'?� /i -tor "fix .�/ %/'' x /� "' ?., te /.///„'.. ii'.,e/y/,',., . ,a^':'e . ' j I I ^ APPENDIX B ^....., Developed Drainage Calculations r f l r. i f j / //"'/ 4y .'//f r n n n Proposed Drainage Plan Roberts Property PUD—Change of Zone Greeley,Colorado PROPOSED DRAINAGE BASIN ANALYSIS Developed runoff was calculated using eight basins, identified as A thru H on the Proposed Drainage Plan included in the back pocket of this report. The developed runoff for the 2-year, 10-year, and 100-year storm events was calculated. The basin areas were determined using Terramodel software. The calculations were performed using a spreadsheet developed with Microsoft Excel software. Design Reference: City of Greeley Design Criteria and Construction Specifications Manual dated July 1999. Urban Storm Drainage Criteria Manual dated March 1969 with revisions dated May 1, 1984 and November 1, 1990 Design Storms: Minor Storm: 2 and 10-year event Major Storm: 100-year event Runoff Quantities: As described in Runoff Analysis Section 4.0 of the City of Greeley Design Criteria and Construction Specifications Manual dated July 1999, all developed basins were less than 160 acres, therefore design storm runoff rates were calculated using the Rational Method. Runoff Coefficients: Calculated pursuant to the values provided in Table 3-1 of the Urban Storm Drainage Criteria Manual dated November 1, 1990 for lawns with clayey soil, roofs, paved streets and driveways. Calculation sheet and a copy of Table 3-1 are included in this section. -� Time of Concentration: As described in Section 3.4.2 of the Urban Storm Drainage Criteria Manual dated May 1, 1984, equation 3-4, the time of concentration for developed runoff was calculated, where: T, = L/180 + 10. Te is the Time of Concentration, and L is the longest reach of the basin. Rainfall Intensities: Values were attained from Table 3.3 of the City of Greeley Design Criteria and Construction Specifications Manual dated July 1999 Detention Requirements: Calculated pursuant to the equation detention method. See Appendix C. Included in this Appendix is the spreadsheet used to perform flow calculations. Preliminary Drainage Report RMC Job No. 80.4205.002.00 ) ) ) 1 ) ) ) ) ) ) ) 1 ) ) ) ) ) ) ) ) 1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PROPOSED DRAINAGE PLAN Drainage CalculationslFlowrates ROBERTS PUD C VALUES: • St 2: 0.87 HDR 2: 0.65 LDR 100: 0.80 Open 100: 040 Schl 2: 0.45 UDR 10: 0.40 Open 10: 0.35 LDR 2: 0.30 Open 2: 0.05 MDR 100 0.70 Ind 2: 0.71 Schl 100: 0.70 MDR 10: 0.60 MDR 2: 0.45 St 100: 0.93 HDR 100 0.80 Ind 100: 0.82 St 10: 0.90 NOR 10: 0.70 ) Basin Design Areas(acres) Composite C Flowlength Intensities Q values(cis) ID Point Total Streets LDR MDR HDR Open 2 year 1O year 1OO year L(It) Tc 2 year 1O year 1OO year 2 year 10 year 1OO year A 62.25 O O O O 62.25 0.05 0.35 0.40 49O 13 2.81 4.75 7.51 8.75 103.49 187.00 B 4.19 O 4.19 O O O 0.30 0.40 0.60 1280 17 2.37 4.01 6.34 2.98 6.71 15.92 C 0.70 O 0.70 O O O 0.30 0.40 0.60 75O 14 2.45 4.16 6.55 0.51 1.16 2.74 D 1.28 O 0.00 O O 1.28 0.05 0.35 0.40 11O 11 2.81 4.75 7.51 0.18 2.13 3.85 E 0.03 0.03 0.00 O O O 0.87 0.90 0.93 23 1O 2.81 4.75 7.51 0.07 0.13 0.21 F 1.37 O 1.37 O O O 0.30 0.40 0.60 85O 15 2.37 4.01 6.34 0.97 2.20 5.21 G 5.20 O 5.20 O O O 0.30 0.40 0.60 129O 17 2.37 4.01 6.34 3.70 8.34 19.78 H 4.60 O 0.00 O O 4.60 0.05 0.35 0.40 145 11 2.81 4.75 7.51 0.65 7.65 13.82 Total 100 year flow from site 248.52 CFS ) ) ) ) ► ) ) ) ) . ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ROBERTS PUD Pipe Sizing Trials* Slopes* PIPE Q (cfs) n dl (ft) d2 (ft) d3 (ft) sl s2 s3 NOTES PIPE "B" 15.92 0.013 1.5 2 2.5 2.30% 0.550% 0.15% PIPE"F" 5.21 0.013 1.5 2 2.5 0,25%c 7: 0.05% 0.02% PIPE "G" 19.78 0.013 1.5 2 2.5 3.55% 077% ! 0.23% *MANNINGS EQUATION IS USED TO SIZE ALL PIPES. l 1 ^ ^ q^C A TETRA TECH COMPANY r r. +ey ��t�'a' z �/y;��w off/:, �` �'J v, 9 ,, .ss J /y b Y Y / H eiN ^ x;� t. A or yr ^ 4 �' es eN '1 APPENDIX C ^^.., Detention Pond Calculations r r ems n /a i. es 0. es .. 'Pte. �S -,417;;,,4,,,, .,� • vi i go%)/fb' ly� g ^es H -"‘"421'W!..../,/'•••• ","42 �i/// /�of / • i � ✓#•/ � .. -2 lam < -.",„:„'„5,, /y / '' � % /^ �ry// F Q' rwI I ^ RnC ROCKY MOUlelN CONSULTANTS, INC. •Professional Engineers• CLIENT: JOB NO.: ^ SHEET / ,7 r� OF_ DESCRIPTION: Re,RESTS Pa U DESIGNED BY: KTS DATE: 4n?,Lay, 2002 D e-rE fOTIO N Vo Lc; M.E CHECKED BY: DATE: EQuRTION Dere& T]oN METHo VOLU rAE' kA - VOL uMt ...../MiNrkAL/M Dereil./0/V Voz 6 47 TtrIsuTFiR.Y _AegEN (R-cgEs'N kea _ eo.45 - /, 90)4000 Kw, (1.7£3 - o,00,2s/ S. -3 5b)//oo0 - S oDeVetol'ert BASin /Al PErV+bus/JESS;C% Agent 7 nn r4ggla " Poivo AREA AREA =_ 79. to 1 R-C — 31. 41(0 4c AZEA = 48,15 AC Of or LO75. ... . . .. . DENsin or PROPtR, Y /0 Lan - ,,.118.15Ac DENSITY = 0., a 1 /ors/4cCC ^ IROK : Fi uRE 6O3 /4/ TN-6- Soot-De-1z COUNTY 5TerNk Drt4INA6E C�1TER1A MRNVAL y9 k, - lo. 95[y) - 1,'p0)1/000 Kw = O,O619 .. Keooc (1.78 (4) - 0.002/ (x. 1 -3.51.)//0co fre. ' 0.0035 Vio = . . Vo: O.co19(Y8,15AoS Vi 0,090 14e - 'r vo0 = ilk Vwo. CQ.0o35) C96.15AC� Yro0 0. /to? 4c -Fr oia. 73caa,_FT3 BOULDER COUNTY t I FIGURE 803 STORM DRAINAGE CRITERIA MANUAL RESIDENTIAL HOUSING DENSITY VS IMPERVIOUS AREA 50 1 1 TEST AREA LOCATIONS -- 0 0 AR/TAHOE COUNTY / 0 LITTLETON / 40 .. W O O v 30 ^ W ❑ O e WW z Q 5 20 W 0. ❑ •• 2 10 LOW DENSITY MEDIUM DENSITY 4/ I 0 0 1 2 3 4 5 HOUSING DENSITY-UNITS PER ACRE WRC ENG. REFERENCE: USDCM, DRCOG Revised 6-1-84 —.0• r ea 2Ca n Is_ En rs�,^e.^,o.�•'m al_""r a 111 - t I`_ \ ' • 1 / It . • T L e > 1 1 ' ;I 11 rr •II I is, l 1t 1 / k • 1i 11I 11x\ -. @ IIi 1 11 tt x' 11 A.* _--_ -Str rTAI '1 /I a %I► 11 liAllq 1•9 V ��', "_ • 1 y • , ‘ '71\ • • 3\ '� '1 ' ' • Q Q .� Q 9 9 ,03,% to " � >34 p p p pyo � /d h 1 , a z{ I ,/,Y ZY f i, • t 4 - 4 .4. t 1 ` ....4, 51 ,s.,,- �; �. II It ; I it t Le l 7140�1 X0,— —3H•----314 3110-- 3140 , ,--/-3110 1— —3110-- —3110----3140— tJ R rii ; M 'X - 311 —A30---r J' P \ s ff;l' :f fa' �9 4't, '>a> >ae ear` 15 e z_ �� 0Yii n gh—T— '^ 2,I R 6 R REVISIONS �� +in i x g i No. DESCRIPTION DATE BY HISTORIC DRAINAGE PLAN _S„ a m n g � ROBERTS PROPERTY PUD ROCKY MOUNTAIN ooNstTA TS INC. i s i r r s WILLIAM AND DOLORES ROBERTS °D""'°�a `.� hi IEPIPE _ , RL 003 023 PIPE 24 0.C�—� �,ISPN6 SW a -412c \ Eilli (PROPOSED]'HIGH BE BE SRIHG HEW SE i0 \ { \ —x=4,05-- -x - - - t, — 1 --Y -._. -- 'JF'. . __ ,. __, ..._ .--____ _ _-""' ,E1 __� — III - - -` w', a� -- gp At 1 r, .:zt i %1/4 . I �� •�'�� Tar 6-i�: I I I, �'ll qw C � ,. i nr � —i ( ,-47347 � � x. �. I 473. - I n° i> �� 5�lC : 4735 '. a]d ��_ � � (� 0 50 IGO ma •J OT 2 p3 4734_ 6,n. -�V �$ HORIZONTAL SCALE 1 LOT Ys.' W `9T3 4OnQ I{ qc I 4)3 1 .50C:BC� _—}/:2b1� ( P 41-; Ya: 4/-I2.530� II�I \(\-\:,+, /- L4--- , )z3+�--._____ _ �a).ta :' -�'�� af'Q'�rX .ri3 •1 :x ' V r PROPL$ED .c I , y PROPOSED] HILH REP ;1 47}. '' 1]33 �-4 14'- • dJ31 ',ARO If�II `•4 I R k 'Me♦ 13' ��}¢{)!yJ♦', ` d] : �` 0 la Al ' a3x�— 413, I II ''''/ - , / 03, b3, L � a O Y r; O]I I .:' 4132 473, 4 JO ♦ Ala>30 / �� • 473. I� _4738 +- .44890,E 'r / �A . '♦ (4:-Z:Filii; d 7Gd,3, 4]SO I �If 1 �� I Aw N4] • It ag �' / 11x9 47)29 I K S y uj A/ CC �� II li V 1111 W 1 ,y4725 i�\ �- �y ,� ' 419 / �` a II W �.( I_ r -'u� -Tie-- c n»�_��a�z --_13'-- r.I PRovosm swu. �'1y'� '��I� L.L 1 01 . —4ixr' / PRDPD 1,47- )` . e �; \ wEio'I°Hcourwm.E"no n"` a O zTh\Nnx !_ ttt m .� \ h � 646-,wo at /{O�� J( I .to �4)x) ,I • }�� oHl Ante � \ Q /� O 00 � i_-_ Ii . Gtr- pitO\ Ati oM1^ ,,, i :.___H_A_..m.,:f2__:"Ljg,,, �N�J • , z ii � _ \\'.\-....-... :',..i.:MAI))- \ ‘‘: \ ‘ 1 . ' ( / ,%7 .1:„1/ a 'I ‘• , 1-+ I R�(70,,../ r ro)k�/ ,Axe________ q 'µ $ i 47 ,ii llik,„,,,_,„•_,/,, ;I„,„,1, I' _ -LOT \ ',/ ,�A,A" pI '4 I - _ VI/ -2 ac 4 I .wile I. • 47x,5 • it L( �[ 31- r ��:' 4�i„ I * I ,,//// 1,1 I 1 - M1t--� 4' __ , _ __ i_ , 1 O / '� ; ' 4105 ,9��—nie / )�'' ' '\^Y '- I / M1 -..ri rr 4735 47x, I A ....:/// 1(------.'. .1' � , LOT 70 _ OR1-' --__ - _� ' tkT 1 4116 I �tlx�xl x 47221 /� ,,- 4 /eZ54 1 42 S' 113,__ _ - I� ( 1 • rL t.' 124 _�Ox6 I .' ng _ d' r 47x5-- 1xnx5�t 4 `,i ' i1]z8� G. _ h _ _ Y z ,1 r w`Hts—� 4nv _ ____ .no-_____PI \\ •a's -4 ii d ... ...' , / { II 4r LEGEND: iczsc 1 ♦�j \ : `4 .." - CASTRO M1VR RAT) IPVRONIukiE CEPIN J' PPL{OSEO ORME k�PROXIW]E DEPiry x' PROPOSED GfILE 0\,..:*, '� ' '5 0ry a' —ONY/ OdR-NW&RE , �:' 0',/.‘` ' • �•- I X X— DO.SMSEO FENCE ,Oa SLOP 0'.I SLOPE wa 6-L On SLOPE Z s �h c ❑ ❑ PROPOSED FENCE Wed Sep I,, 2002 8I e\a•>zj; `x BOUNDARY REFORMATION COTO AHED CO EASEMENT ENE 5 ROCKY RMOUNTAIN7WA C TAKEN NC COSTING 5056- EXIs1NG CONTOUR UEE TYPICAL DITCH TYPICAL DITCH \ xz °47,9 ,,x9 ,� EMO xneTo-_DA.INFORMATION ER 64 1/2 __ SECTION M NOT 0 SCALE BB "I a>36 .�M1�Cry^rys'ti 4.,•14‘,„ DCCDI XN .— 2347°� EXISTING PROPERTY BOUNDARY NOT TO SCALESECTION D 3Cu. IDECEMBER 9, 1900 BY WRAF&SNORT.INC. EXISTING EDGE of PAVED ROOD!1 �� 5055 PROPOSED CONTOUR ENE If ., 4725 _— _472 Pg51H L 60' RIGHT Of WAY �(J`�•y`�\� IF S MO FOR CONSSNTURE _ ',tit/Way AREA(.1CRE5)�L��(��] BARN C($RN110N )5' 7.5' IO' ,0' 4 7.5' ).5' PNNkpIf1W19GW111N •', \`ll/Y\ I I 1 4 I I I I I I ARE u,UCH SS MIKTION HEET MAJOR COEFFICIENT( I 2% xX�.� DESIGNED BT. I KG002 _ 1.4 DIRECTION Of FLOW PLOTTED Sep—INN31ULOEfl 4' SHOULDER 31 3'I DRAWN BT'. KGP gM91AGE MSN BWNMRY CHECKED BY'. MWB ul - JOB NUMBER'. w l TYPICAL STREET SECTION BO-4205.002.00 NOT] SCALE SHEET: 1 of 1 Hello