This is a digital document from the collections of the Wyoming Water Resources Data System (WRDS) Library.

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1 This is a digital document from the collections of the Wyoming Water Resources Data System (WRDS) Library. For additional information about this document and the document conversion process, please contact WRDS at wrds@uwyo.edu and include the phrase Digital Documents in your subject heading. To view other documents please visit the WRDS Library online at: Mailing Address: Water Resources Data System University of Wyoming, Dept E University Avenue Laramie, WY Physical Address: Wyoming Hall, Room 249 University of Wyoming Laramie, WY Phone: (307) Fax: (307) Funding for WRDS and the creation of this electronic document was provided by the Wyoming Water Development Commission (

2 FNAL REPORT EXECUTVE SUMMARY LEVEL ANALYSS RYAN PARK WATER SUPPLY PROJECT RYAN PARK, CARBON COUNTY, WYOMNG TO THE WYOMNG WATER DEVELOPMENT COMMSSON SPONSORED BY THE NORTDvEST RyAN PARK WATER AND SEvvER DSTRCT Submitted By PMPC 118 E. Bridge Ave. Saratoga, Wyoming NOVEMBER 1994

3 EXECUTVE SUMMARY PROJECT NEED The Ryan Park area does not have a community water system capable of adequately serving the area residents. The present water supply consists of individual wells and local springs. The existing wells are shallow and produce large quantities of fine sand. The most pressing problems are the lack of a sufficient quantity of water from the individual wells and the high pump maintenance caused by the sand. PROJECT HSTORY The members of the Ryan Park Tract lib" Water Company requested the Wyoming Water Development Commission (WWDC) to conduct a Level study to determine the feasibility of constructing a community water system to serve the area. The objectives of the Level Report were,to: 1) inventory the existing systems, 2) estimate water demands for the service area, 3) analyze water supply alternatives, 4) recommend alternatives, 5} develop preliminary designs, 6) develop preliminary cost estimates for the Ryan Park Water Supply Project. At the completion of the Level study and the formation of the Northwest Ryan Park Water and Sewer District (District), WWDC authorized a Level study. This Level analysis evaluates alternative groundwater and surface water sources for supplying water to the Ryan Park community. The original scope of work was amended to include additional groundwater exploration on the valley floor as well as on Barrett Ridge. COMMUNTY AND POPULATON SERVED BY PROJECT The recommended service area is the Northwest Ryan Park Water and Sewer District, (District), and areas immediately adjacent to it. Approximately 73 people will be served by this project initially. The project service area is shown on Figure No. ES-1. E.S.-1

4 N o t SCALE 'l (/) ru PROJECT SERVCE AREA-... a:::::::::- District Boundary." --f G) C ::0 rn Z o rn (f) ~ Creeks Lots within District boundary but not ncluded n the District l(he. Locations of ruo(b, c,..."<" onj tudjln')s are apr r<),imote ~~~~---- DSTRCT BOUNDARY NORTH~EST RYAN PARK ~ATER AND SE~ER DSTRCT RYAN PARK, ~YOMNG, FOREST SERVCE. LEASES '3

5 WATER CONSUMPTON AND POPULATON PROJECTONS The following water consumption and population figures were used in the preliminary system design. POPULATON SERVCES CONSUMPTON Average Day Maximum Day Maximum Hour Gal/Cap/Day 18,250 Gal/Day 13 GPM 500 Gal/Cap/Day 36,500 Gal/Day 26 GPM 750 Gal/Cap/Day 54,750 Gal/Day 38 GPM Gal/Cap/Day 51,250 Gal/Day 36 GPM 500 Gal/Cap/Day 102,500 Gal/Day 72 GPM 750 Gal/Cap/Day 153,750 Gal/Day 107 GPM SYSTEM OWNERSHP AND OPERATON The Northwest Ryan Park Water and Sewer District has been formed to own and operate the water system. ts members are the property owners of the District. FRE FLOWS Fire flow was not a condition of design for the "Ryan Park Water Supply Project". However, an analysis considering fire flow of 500 gpm, based on the recommended piping system was completed. The system will provide maximum daily flow plus 500 gpm fire flow to properties, with a 30 psi minimum residual system pressure. RECOMMENDED ALTERNATVE The recommended alternative is a complete community water system that will serve the District, the lots within the District boundary but not included in the District, and those lots bordering the District. The recommended system consists of the Barrett Ridge Wells, the Ryan Park Well, water treatment, transmission lines, distribution lines and a storage tank. Water meters will be installed on individual services. Pressure reducing valves will be installed on those services having pressures in excess of 70 pounds per square inch (psi). The recommended system is shown on Figure No. ES-2. E.S.-3

6 BARRETT RDGE WELLS PC-. PC-A ELEV PROPOSED 6' WATER TRANSMSSON LNE ----'"' (EXSTNG FOREST SERVCE ROAD) PROPOSED 103,000 GALLON WATER TANK LOCA non GROUND ELEVATON 8550.J r---~ L---T -- N FOREST SERVCE ROAD ' PROJECT SERVCE AREA o! !! FOREST SERVlCE--... o.ll LEASES L.J 1\ - : ~FOREST SERVCE BOUNDARY [WYOM.Nj NOTE' LOCATON OF ROADS. CREEKS, All[) BULDNGS ARE APPROXMATE ORGNAL DRAWNGS PROVDED BY COFFEY ENGNEERNG All[) 6l.RVEYNG. NC. LOCATlON tan' ES-4 -- REVSON _''MDW _1a lo-2rr--... '7OS2.ooo CM,E C:JC" 1&r f' PMPC... _A" RECOMMENDED SYSTEM RYAN PARK AN) BARRETT RDGE WELLS. TAN< AND WATER SYSTEM NCRTHWET RYAll PNW< WATER... T PO.EX:T ~"ATER~ ~CN FGURE ES-2

7 WATER SUPPLY The water will be supplied by wells located on Barrett Ridge, Section 28 and on Lot 9, Block 4, Ryan Park 3rd Addition, Carbon County. For the near term, three to five years, the sources located on Barrett Ridge and in Ryan Park will be adequate. As the requirements for water approach the maximum developed well capacities of 34 gallons per minute (gpm), additional sources of water will be required. These sources may be in the form of additional wells on Barrett Ridge and Brush Creek or a surface water treatment plant utilizing Barrett Creek as its source. The anticipated quantity required at build out is 72 gpm. WATER TREATMENT The well supplies are classified as true groundwater water sources and not groundwater sources under surface water influence. Disinfection is not required at this time but this may change in the future. Disinfection is the only treatment anticipated. WATER TRANSMSSON AND DSTRBUTON Water systems are to be designed to maintain a 20 psi minimum residual pressure at ground level for all locations under all flow conditions. Maximum hour flow is the condition for design of the transmission and distribution portions of this system. A 4" transmission line is proposed from PC-1 and PC-1A wells to the water storage tank. The NP-1 well will be connected directly to the distribution system through oversized detention piping to allow for adequate chlorine contact time. A 6 11 transmission line will connect the water storage tank and the distribution system. Additional 6" distribution lines will constitute the remainder of the system. The final transmission and distribution system configuration may change.during final design when the service area and user locations are finalized. WATER STORAGE nstallation of one 103,000 gallon buried reinforced concrete storage tank is being proposed. Location of the tank is not final, pending Forest Service clearance processes. E.S.-5

8 ENVRONMENTAL STUDES! CONSTRUCTON PERMTS Several state and federal agencies require submittal of information regarding this project for their review and approval prior to authorizing construction. The known agencies that will be involved n the permitting and approval process are: USEPA DEQ RDA USDA!FS SHPO G&F WWDC COE USF&W - approval of plans and specifications - approval of plans and specifications, issue permit to construct, approve stream and wetlands details - approval of plans and specifications, review cultural and environmental impacts, wage rate determinations - approval of easements across Federal lands, and cultural and environmental clearances - cultural clearances - environmental clearances - approval of plans and specifications - approval of construction methods and wetlands determination - fish and wildlife clearances GEOTECHNCAL NVESTGATONS Area residents and local contractors were interviewed in an attempt to determine potential subsurface problem areas. No additional subsurface investigations were conducted as a part of this study. A visual examination of potential tank sites was conducted. The anticipated subsurface problems are: High seasonal groundwater and cobble in the lower areas of Ryan Park Shallow depth to bedrock in the higher hillside and tank site E.S.-6

9 RECOMMENDED ALTERNATVE PC-l, PC-1A AND NP-l ENGNEER'S OPNON OF PROBABLE PROJECT COST DESCRPTON WELLS MOBLZATON WELL COMPLETON WELL CONSTRUCTON WELL CONNECTON - 3 WELLS PUMPS, MOTORS, AND CONTROLS TELEMETRY, ELECTRCAL PUMP BULDNGS NP-1 PC-1 AND PC-1A ELECTRCAL SERVCE NP-1 PC-1A PC-1 TREATMENT SYSTEM - CHLORNATON MOBLZATON TANK NP-1 (NCLUDES CHLORNE DETENTON PPNG) TRANSMSSON MOBLZATON 2" TRANSMSSON LNE 4" TRANSMSSON LNE 6" TRANSMSSON LNE REPLACEMENT OF UNSUTABLE BACKFLL PPE BEDDNG ROCK EXCAVATON DSTRBUTON MOBLZATON 6" DSTRBUTON SERVCE (18" METER PT, PPNG, ETC) SERVCE (PPNG, TAP, ETC.) REPLACEMENT OF UNSUTABLE BACKFLL PPE BEDDNG ROCK EXCAVATON OPNON OF PROBABLE COST $ 21, ,606 43,500 20,000 70,100 23,500 8,000 15,000 3,000 20,000 3,000 2,000 10,000 6,000 17,000 1,000 30, , ,000 26,000 19, ,200 44,800 22, ,500 14,300 WWDC GRANT ELGBLE $ 21, ,606 43,500 20,000 70,100 23,500 8,000 15,000 3,000 20,000 3,000 17,000 1,000 30, , ,000 26,000 STORAGE TANK MOBLZATON TANK STE - PREPARATON ROCK EXCAVATON TREE REMOVAL 103,000 GAL BURED TANK AND 25,000 8,000 60,000 2,000 CONTROLS 150,000 CONSTRUCTON SUBTOTAL $1,070,906 25,000 8,000 60,000 2, ,000 $821,406 E.S.-7

10 OPNON OF WWDC DESCRPTON PROBABLE COST GRANT ELGBLE CONSTRUCTON SUBTOTAL $1,070,906 $821,406 DESGN - (10%) 107,100 82,146 ADMN./NSPECTON/QUALTY CONTROL (10%) 107,100 82,146 GEOTECHNCAL 10,000 7,670 DESGN SURVEY 10,000 7,670 PPELNE ROW AND EASEMENT SURVEY 10,000 7,670 PROPERTY SURVEY - TANK 3,000 2,301 PROPERTY SURVEY - WELLS 2,000 1,534 LEGAL 25,000 19,175 SUBTOTAL $1,345,106 $1,031,718 CONTNGENCY (15%) 201, ,781 TOTAL ANTCPATED PROJECT COSTS $1,546,906 $1,186,499 FUNDNG SOURCES The funding agencies being approached at present consist of Wyoming Water Development Commission (WWDC), Farm Loan Board (FLB) and the Rural Development Administration (RDA). The requirements for each of these agencies is as follows: WWDC-items available for funding are: water source development, storage, transmission. funding proportions: 67% WWDC grant and 33% loan at 4% interest for 30 years. FLB- items available for funding are: water treatment and distribution funding proportions: 50% FLB grant and 50% loan at 7.25% interest for 30 years. RDA- The amount of funding is in relation to the Median Family ncome (MF) for a specific area, for Ryan Park the MF is $24,756. This agency can help fund a project as long as the amount of debt incurred by the beneficiaries is at least 1% of the MF for the area times a factor based on an interest rate and loan E.S.-8

11 duration. n the case of Ryan Park this amount is: 1% x 28 users x $24,756. (A/P,i%,n) RDA loan rates are presently at 5.5% interest for 30 years. t is anticipated that funding will be obtained in the following manner: Rural Development Administration, RDA - grant in the amount of... $507,358 Wyoming Water Development Commission, WWDC grant in the amount of... $794,955 Farm Loan Board, FLB grant in the amount of... $124,750 Local participation loan from WWDC at 4% for 30 years... $119,843 TOTAL PROJECT COST... $1,546,906 THE STATUS OF THE AGENCES APPLCATONS ARE: WWDC RDA FLB Pending outcome of Level Analysis. Preliminary Application is being reviewed. Pending outcome of Level Analysis. E.S.-9

12 ANNUAL ANTCPATED LOCAL COSTS WTH RDA Land Lease - Tank Site, Well Site & Pipeline $ 200 Labor - Check System, Read Meters, Billing 7,280 Office Supplies Vehicles Chemicals 200 2, Analytical Testing 500 Power 1,300 Maintenance (Pump, Valve, Motor Replacement, Paint, etc) Debt Service 2,500 6,930 Annual Anticipated Local Cost $21,503 Anticipated Monthly Cost Per Service $64.00 The anticipated monthly cost per service is based on 28 taps and debt service on a loan of $119, ANNUAL ANTCPATED LOCAL COSTS WTHOUT RDA Land Lease - Tank Site, Well Site & Pipeline Labor - Check System, Read Meters, Billing Office Supplies Vehicles Chemicals Analytical Testing Power Maintenance (Pump, Valve, Motor Replacement, Paint, Debt Service Annual Anticipated Local Cost Anticipated Monthly Cost Per Service $ 200 7, , ,300 etc) 2,500 39, $53, $ The anticipated monthly cost per service is based on 28 taps and debt service on loans from WWDC at 4.0% and FLB at 7.25% for a total loan of $628, E.S.-0