TECHNICAL MEMORANDUM

TO: WWDC DATE: May 17, 2010 FROM: MWH REFERENCE: Wind-Bighorn Basin Plan SUBJECT: Task 3B - Municipal and Domestic Water Use Profile The purpose of this technical memorandum is to document municipal and domestic water use in the Wind-Bighorn Basin to support the Wind-Bighorn Basin Plan. This information updates work performed during the previous Wind-Bighorn Basin Plan completed in 2003. Section 1 provides a brief summary of municipal and domestic use reported in the previous Basin Plan. The remaining sections provide updated information. This technical memorandum contains the following sections.

Contents

Section 1 - Introduction .......................................................................................................................... 1

Section 2 - Municipal Water Use Profile ................................................................................................. 2

Groundwater Use ............................................................................................................................... 2

Surface Water Use ............................................................................................................................. 6

Additional Supplies from Reservoirs ................................................................................................... 6

Average Monthly Water Use ............................................................................................................... 6

Consumptive Use and Return Flows .................................................................................................. 6

Regional Municipal Water Systems .................................................................................................. 10

Section 3 – Non-Community Public Water Use Profile ......................................................................... 13

Section 4 - Domestic Water Use Profile ............................................................................................... 13

Section 5 –Municipal and Domestic Water Use Summary ................................................................... 16

Section 6 - References ........................................................................................................................ 16

Section 1 - Introduction The municipal water use profile was presented in the previous Basin Plan, including a summary of water sources, uses, and supply systems for the Wind-Bighorn Basin (LA, 2002a). The previous Basin Plan documented 58 municipal water systems in the Basin, with 22 of those systems obtaining water supply from surface water sources and the remaining 36 systems using groundwater supplies. Information pertaining to how each of the municipal water systems was defined can be found in the previous Basin Plan. Municipal water use in the Basin was made up of surface water resources (68 percent of total use) and groundwater resources (32 percent of total use). Total average municipal water use was 12.2 million gallons per day (mgd), equivalent to about 207 gallons per capita per day (gpcd). A storage capacity of 36.7 million gallons was available to meet seasonal variations in municipal water use. The largest municipal surface water diversion from the Basin was the Shoshone

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Municipal Pipeline, which delivered water to about 21,000 people from storage in Buffalo Bill Reservoir. Surface water depletion and augmentation were summarized for seven municipal entities in the Basin, showing net annual surface water depletions of about 2,900 acre-feet per year. The domestic water use profile was also summarized in the previous Basin Plan, including a summary of domestic water use by non-municipal public systems and rural domestic users (LA, 2002b). A range of 6.5 to 10.4 mgd was reported for total domestic water. Approximately 70 percent of domestic water use was attributed to use by the rural domestic population of about 26,000 people. All of the rural domestic water use was supplied by individual groundwater wells in the alluvial, Wind River, Willwood, and Paleozoic aquifers. Most (83 percent) of the rural domestic water wells were located in Fremont and Park counties. Domestic water use also occurred for the 115 non-municipal public water systems, of which water supplies were approximately 50 percent surface water supplies and 50 percent groundwater supplies. Approximately 34,300 people were served by non-municipal public water systems, with the majority of this population located in Yellowstone National Park. Per capita water use was assumed to range from 150 to 300 gpcd for domestic water users in order to estimate total domestic demands.

Section 2 - Municipal Water Use Profile As of early 2009, the United States Environmental Protection Agency (USEPA) Safe Drinking Water Information System (SDWIS; USEPA, 2009) lists 60 active community public water systems located in the Basin. A community public water system is defined by the USEPA as “a public water system that supplies water to the same population year-round” (USEPA, 2008). A summary listing of all water systems in the USEPA SWDIS database for the Wind-Bighorn Basin is presented in Appendix A. During the spring and summer of 2009, the Wyoming Water Development Commission (WWDC) conducted a survey of all known municipal and non-municipal community public water systems in the State of Wyoming. The results of the survey were summarized in the 2009 WWDC Water System Survey Report. The information contained in the report is based on completed surveys submitted by 100 community public water systems within the State of Wyoming, but does not include information on all the entities listed in the USEPA SWDIS database. Some entities did not respond to the survey request and some responded with incomplete information or indicated that systems were so small that the questions on the survey did not apply. Therefore, detailed information for only 42 of the 60 USEPA SWDIS active community public water systems in the Basin is available. Of the 42 community water systems with detailed information, 27 of the systems obtain at least part of their water supply from groundwater sources and 15 of the systems use surface water supply as their primary water source (WWDC, 2009). To be consistent with state-level data, the remaining portion of this section reports population estimates based on those included in the WWDC water system survey reports. A summary listing of all water systems in the 2009 WWDC Water System Report for the Wind-Bighorn Basin is presented in Appendix A.

Groundwater Use

Community water systems that obtain at least a portion of their water supply from groundwater resources are summarized in Table 1. Total population served by groundwater sources was approximately 22,710 (WWDC, 2009). Total reported average daily use from groundwater sources was about 5.1 million gallons per day (about 5,700 acre-feet per year; WWDC, 2009; WWDC, 2007). Total reported storage capacity, including raw water and treated water storage, amounted to about 19 million gallons (about 58 acre-feet). Detailed water system and use information for each of the community public water systems is provided in Appendix A.

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Table 1. Community Public Water Systems using Groundwater

Water System Name Population

Served1

Number of Wells

1,7

Average Use (gpd)

1

Total Storage Capacity (gallons)

1, 2

Airport Bench Water & Sewer Dist.4 26 3 10,406 ND

B&K Mobile Home Park4 95 1 ND ND

Basin 1,200 2 178,082 850,000 Big Valley & Crossed Arrows Imp Dist. 35 1 1,500 5,000

Burlington 274 2 328,767 400,000 Cooper Sub Mobile Home Park 100 1 ND 0 Cowley 800 1 ND 200,000 Cozy Mobile Home Park

4 115 2 ND ND

Dubois Water System 960 4 211,992 650,000 Fairview Water & Sewer District 300 1 41,096 250,000 First Fike Subdivision

4 150 1 ND ND

Gardens North Homeowners Assn 300 1 35,068 200,000

Greybull3 3,000 3 1,000,000 1,750,000

Hudson, Town of 500 10 125,000 210,000 Hyatville WC 50 2 2,740 25,000 Jeffrey City Water & Sewer Dst.

4 40 ND ND ND

Juniper Park Water Assn. 4 42 1 ND ND

Manderson ND 2 ND ND Monroe Ave Mobile Home Park

200 3 0 ND

Mountain View Acres4 165 2 ND ND

North End Water Users 500 3 162,000 200,000 North Riverton Wtr & Swr 120 1 ND 500 Pavillion 160 5 1,918 533,700 Raintree Estates

3, 4 75 2 5,500 10,000

Riverton, City of 5,9

9,728 13 951,621 5,300,000 Second Fike Subdivision

4 34 1 ND ND

Shell Valley, West Water & Sewer 50 ND 0 ND Shell Water Users, Inc 50 ND 0 ND

Shoshoni 650 4 177,568 8,500,000 South Big Horn Co JPB

3 1,000 2 213,699 100,000

South Worland Water Users, Inc 402 ND ND ND Spencer Homesites

4 40 2 ND ND

Sunnyside Mobile Home Park4 25 ND ND ND

Sunridge Estates 300 1 192 80,000 Ten Sleep

3 304 2 12,800 0

Thermopolis, Town of 8 See note 3 46,575 See note

Warm Springs Water District 120 1 11,500 200,000 Washakie Rural Water System

3 800 0 80,000 35,000

Worland Utilities Commission3 ND 2 1,500,000 ND

Total6 22,710 85 5,098,024 19,499,200

1 Data source: WWDC (2009) unless otherwise noted

2 Total storage is the sum of raw water storage and treated water storage

3 Data source for Average Use (gpd): WWDC (2007)

4 Data source for Population Served: SDWIS; USEPA (2009)

5 The city of Riverton receives approximately 52% of water supply from groundwater reported here. The remaining water supplied from

surface water is reported in the surface water table (Table 3). Population served and storage is reported in the groundwater table only. 6 Total includes data when available from both WWDC (2007), WWDC (2009) and SDWIS; USEPA (2009)

7Total groundwater wells in Basin is estimate based on available data in WWDC (2007), WWDC (2009) and SDWIS; USEPA (2009)

895% of Thermopolis water supply comes from surface water from Bighorn River, therefore 5% of total use is reported in Groundwater Table,

and 95% in the surface water table. Population served and total storage are included in surface water table since it is primary water supply. 9 Data source for Average Use (gpd): Personal Communication City of Riverton (Urbigkit, 2009)

ND = no data

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Locations of all wells permitted for municipal use are shown in Figure 1. Based on information provided by the State of Wyoming, State Engineer’s Office (WSEO), there are a total of 137 permitted groundwater wells in the Basin that are used for municipal purposes (WSEO, 2009). Table 2 summarizes the permitted municipal groundwater wells within the Basin by county. Table 2. Summary of Wind-Bighorn Basin Municipal Water Wells by County

County Number of Wells

Big Horn 36

Fremont 70

Hot Springs 25

Johnson 0

Natrona 0

Park 3

Washakie 2

Total 136

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Figure 1. Municipal Groundwater Wells in Wind Bighorn Basin (WSEO, 2009; WRIR, 2009)

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Surface Water Use

The 2009 Water System Survey Report (WWDC, 2009) shows that 22 community public water systems obtained their water supply primarily from surface water resources (summarized in Table 3). Total population served by surface water sources was approximately 60,000. Total reported average daily use from surface water sources was about 6.9 million gallons per day (about 7,728 acre-feet per year). Total reported storage capacity including treated water storage and raw water (excluding Buffalo Bill Reservoir storage of approximately 9,725 acre-feet), amounted to about 23 million gallons (about 71 acre-feet). Table 3 lists the community public water systems which receive their water solely through surface water sources.

Additional Supplies from Reservoirs

There are two municipal entities that divert either all or a portion of their surface water from storage. The Shoshone Regional Water Supply System diverts all of its supply from Buffalo Bill Reservoir. A summary of these systems is contained in the following sections. The Town of Thermopolis uses storage in Boysen Reservoir to supplement its surface water diversions. Division III records show that between 1 and 101 acre-feet per year has been used by Thermopolis from Boysen Reservoir storage. There may be reservoirs within the Basin that provide incidental storage benefits to surface water diversions. However, any incidental storage diverted is not recorded as being diverted from storage by Division III.

Average Monthly Water Use

Average monthly surface water diversions and groundwater pumping were estimated for each community public water provider serving at least 1,000 people. Total annual diversions/pumping and population data were obtained from the most recent WY Water System Survey Report (WWDC, 2009). Monthly water use patterns (i.e., monthly percentage of total annual water use) were estimated based on actual surface diversions for major municipal providers (See Technical Memorandum 4B for description of municipal diversion data in WindBighorn_Hydro database). The average monthly use pattern was then applied to each of the community public water providers’ total annual demand to estimate monthly use (Table 4).

Consumptive Use and Return Flows

Consumptive use for municipal public water providers serving at least 1,000 people was estimated based on the monthly water use (diversions) data from the previous section. Separate consumptive use percentages were applied to estimated sewered (water use returning to a wastewater treatment facility, primarily indoor water use) and non-sewered (water use that does not return to a treatment facility, primarily outdoor water use.) Consumptive use for indoor deliveries was based on a typical value of 15 percent, indicating that 85 percent of indoor deliveries would return to a wastewater treatment facility, and is based on review of data for smaller rural communities with similar water use and return flow patterns (MWH, 2001). Consumptive use for outdoor deliveries was based on a typical on-farm efficiency for sprinkler systems of 80 percent (SCS, 1993) assuming that this is indicative of municipal sprinkler systems as well. This results in 20 percent of outdoor deliveries returning to alluvial groundwater and/or the stream system. Indoor water use for all months was estimated to be the same as total water use in January, with outdoor water use comprising the remaining monthly use. Overall, this analysis results in an average annual consumptive use of 41 percent, and an average annual return flow of 59 percent. Monthly consumptive use and return flows are presented in Table 5 and Table 6.

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Table 3. Community Public Water Systems Using Surface Water

Water System Name 2009

Population Served

1

Water Source1

2009 Average

Use (gpd)

1

2009 Total Storage Capacity

(gallons)1,2

Byron, Town of 600 Shoshone Municipal Pipeline 60,000 400,000

Cody, City of 3 8,832

Buffalo Bill Reservoir (water purchased from Shoshone Municipal Pipeline), South Fork Shoshone River via Cody Canal 1,440,000 3,040,000

Deaver Municipal Water System 210 Shoshone Municipal Pipeline 32,529 350,000

East Thermopolis, Town of6 274

Supplemental supply from the Town of Thermopolis See note See note

Frannie, Town of 200 Shoshone Municipal Pipeline 30,137 ND

Green Acres Village4 375 Shoshone Municipal Pipeline ND ND

Juby's MHP4 350 City of Cody ND ND

Kirby, Town of6 50 Thermopolis Treatment Plant from Big Horn River See note See note

Lander, City of 7,000 Middle Fork of Popo Agie River 2,000,000 7,000,000

Lovell, Town of6 2,500

Buffalo Bill Res., North Fork & South Fork Shoshone River 222,000 1,300,000

Lucerne Water & Sewer Dist. 375 Consecutive System from Thermopolis See note See note

Meeteetse, Town of 370 Lower Sunshine Reservoir 54,795 700,000 Northwest Rural Water District 5,000 Buffalo Bill Reservoir 421,918 1,015,000

Powell, City of 5,300 Buffalo Bill Reservoir (water purchased from Shoshone Municipal Pipeline) 849,036 1,900,000

Red Lane Domestic Water, Inc. 60 Thermopolis Water 8,000 17,000

Redd Fox Park HOA4 50 Unknown ND ND

Rivers Bend Trailer Court4 96 Unknown ND ND

Riverton, Town of7 See note Wind River 880,991 See note

Shoshone Municipal Pipeline5, 24,600 Buffalo Bill Reservoir 3,172 5,000,000

South Thermopolis WSD6 112

Supplemental supply from the Town of Thermopolis See note See note

Thermopolis8 3,700 Big Horn River 884,932 2,500,000

Yellowstone NP Mammoth Hot Spring

4 600 Unknown ND ND

Yellowstone NP Old Faithful4 115 Unknown ND ND

Total 60,769 6,887,510 23,222,000 1 Data Source: WWDC 2009 unless otherwise noted

2 Total storage is the sum of raw water storage and treated water storage

3 Data Source for Average Use (gpd): WWDC, 2007. City of Cody potable water delivered through Shoshone Municipal Pipeline, while the

Cody Raw Water System (South Fork Shoshone River via Cody Canal) delivers non-potable water to many residents for outdoor water use. 4

Data Source for Population Served: SDWIS; USEPA (2009) 5

Total Storage does not include raw water source from Buffalo Bill Reservoir 6

Average water use is accounted for by the Town of Thermopolis. These entities all receive 100% of surface water from the Town of Thermopolis. 7 The city of Riverton receives approximately 48% of water supply from surface water reported here. The remaining water supplied from

surface water is reported in the groundwater table (Table 1). Population served and storage is reported in the groundwater table only. 8 95% of Thermopolis water supply comes from surface water from Bighorn River, therefore 5% of total use is reported in Groundwater Table,

and 95% in the surface water table. Population served and total storage are included in surface water table since it is primary water supply.

ND = No Data

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Table 4. Average Monthly Water Diversions for Community Public Water Providers Serving at Least 1,000 People

Monthly Use

Pattern (% of Total Annual

Diversion)

Groundwater Use (mgd)

Surface Water Use and Groundwater

Use (mgd) Surface Water Use (mgd)

Month Basin Dubois Greybull

South Big

Horn County

JPB Worland Riverton Ther-

mopolis Cody Lander Lovell

NW Rural Water

District Powell Jan 5% 0.11 0.13 0.60 0.13 0.13 1.10 0.56 0.86 1.20 0.13 0.25 0.51 Feb 5% 0.11 0.13 0.60 0.13 0.13 1.10 0.56 0.86 1.20 0.13 0.25 0.51 Mar 5% 0.11 0.13 0.60 0.13 0.13 1.10 0.56 0.86 1.20 0.13 0.25 0.51 Apr 6% 0.13 0.15 0.72 0.15 0.15 1.32 0.67 1.04 1.44 0.16 0.30 0.61 May 8% 0.17 0.20 0.96 0.21 0.21 1.76 0.89 1.38 1.92 0.21 0.41 0.82 Jun 12% 0.26 0.31 1.44 0.31 0.31 2.64 1.34 2.07 2.88 0.32 0.61 1.22 Jul 16% 0.34 0.41 1.92 0.41 0.41 3.52 1.79 2.76 3.84 0.43 0.81 1.63 Aug 15% 0.32 0.38 1.80 0.38 0.38 3.30 1.68 2.59 3.60 0.40 0.76 1.53 Sep 10% 0.21 0.25 1.20 0.26 0.26 2.20 1.12 1.73 2.40 0.27 0.51 1.02 Oct 7% 0.15 0.18 0.84 0.18 0.18 1.54 0.78 1.21 1.68 0.19 0.35 0.71 Nov 5% 0.11 0.13 0.60 0.13 0.13 1.10 0.56 0.86 1.20 0.13 0.25 0.51 Dec 6% 0.13 0.15 0.72 0.15 0.15 1.32 0.67 1.04 1.44 0.16 0.30 0.61

Average Annual Use (gpd) 0.18 0.21 1.00 0.21 0.21 1.83 0.93 1.44 2.00 0.22 0.42 0.85 Total Annual Demand (acre-feet/yr) 200 238 1124 240 240 2060 1047 1618 2248 250 474 954

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Table 5. Monthly Consumptive Use for Municipal Water Providers Serving at Least 1,000 People

Groundwater Consumptive Use (acre-feet)

Surface Water and Groundwater Use

(acre-feet) Surface Water Consumptive Use

(acre-feet)

Month Basin Dubois Greybull

South Big Horn County

JPB Worland Riverton Ther-

mopolis Cody Lander Lovell

NW Rural Water

District Powell Jan 2 2 9 2 2 16 8 12 17 2 4 7 Feb 1 2 8 2 2 14 7 11 16 2 3 7 Mar 2 2 9 2 2 16 8 12 17 2 4 7 Apr 3 4 17 4 4 31 16 25 34 4 7 15 May 6 8 36 8 8 66 33 52 72 8 15 31 Jun 12 15 70 15 15 129 65 101 140 16 30 60 Jul 19 23 109 23 23 200 102 157 218 24 46 93 Aug 18 21 100 21 21 183 93 144 200 22 42 85 Sep 9 11 52 11 11 96 49 76 105 12 22 45 Oct 5 6 27 6 6 49 25 39 54 6 11 23 Nov 1 2 8 2 2 15 8 12 17 2 3 7 Dec 3 4 18 4 4 32 16 25 35 4 7 15 Total 82 98 462 99 99 847 431 666 924 103 195 392

Table 6. Monthly Return Flows for Municipal Water Providers Serving at Least 1,000 People

Return Flows from Groundwater Users (acre-feet)

Surface Water Use and Groundwater Use

(acre-feet) Return Flows from Surface Water Users

(acre-feet)

Month Basin Dubois Greybull

South Big Horn County

JPB Worland Riverton Ther-

mopolis Cody Lander Lovell

NW Rural Water

District Powell Jan 9 10 48 10 10 89 45 70 97 11 20 41 Feb 8 9 44 9 9 81 41 64 88 10 19 38 Mar 9 10 48 10 10 89 45 70 97 11 20 41 Apr 9 10 49 11 11 90 46 71 98 11 21 42 May 10 12 55 12 12 101 52 80 111 12 23 47 Jun 11 13 62 13 13 114 58 90 125 14 26 53 Jul 13 16 74 16 16 135 69 106 147 16 31 62 Aug 13 15 71 15 15 131 66 103 143 16 30 61 Sep 10 12 58 12 12 106 54 83 116 13 24 49 Oct 9 11 53 11 11 97 49 76 106 12 22 45 Nov 8 10 47 10 10 86 44 68 94 10 20 40 Dec 9 11 51 11 11 93 47 73 102 11 21 43 Total 118 140 662 141 141 1,213 616 953 1,323 147 279 562

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Depletions to surface water from alluvial wells and from consumptive use of surface water diversions, and augmentation to surface water from non-tributary bedrock wells (which are not naturally tributary to surface water) can be estimated from consumptive use and return flow calculations. Groundwater aquifer types were determined based on the well depth information from the 2007 and 2009 Water Survey Report (WWDC, 2007; WWDC, 2009) as shown in Table 7. Shallow wells close to the surface were determined to receive water from alluvial groundwater aquifers. Deep wells were determined to pump from non-tributary supplies. This was ascertained by the noticeable difference in maximum well depth between the deep wells and shallow wells. Table 7. Well Information and Aquifer Type for Municipalities Using Groundwater Supply

Municipality

Minimum Well Depth (ft)

Maximum Well Depth (ft)

Estimated Aquifer Type

Basin 4,130 4,173 Non-tributary Greybull 3,000 3,200 Non-tributary Riverton 600 1,823 Non-tributary South Big Horn County JPB 5,200 5,400 Non-tributary Worland 2,400 2,400 Non-tributary Thermopolis 30 30 Alluvial Dubois 60 60 Alluvial

Consumptive use for surface water users and alluvial groundwater users represent the rate of depletions to surface water supply. Return flows from non-tributary groundwater users represent surface water augmentations. The following describes augmentation and depletion from this water use:

• Augmentation – Surface water is augmented by return flows from non-tributary aquifer pumping by wells for Basin, Greybull, Riverton, South Bighorn County JPB and Worland. Monthly return flows for these wells are shown in Table 6. Accounting for the percentage of Riverton’s supply that is supplied by groundwater, total augmentation to surface water from bedrock well return flows is about 2,544 acre-feet per year.

• Depletion – Depletion of surface waters by wells and consumptive use of surface water is

estimated by the consumptive use from these sources, including alluvial wells in Dubois and Thermopolis, and surface water diversions by Lander, Lovell, Riverton, Thermopolis, NW Rural Water District and Powell. Consumptive use is shown in Table 5. Accounting for the percentage of Riverton’s supply that is supplied by surface water, total depletions from these sources are about 3,431 acre-feet per year.

It should be noted that the monthly effect of depletions on surface water bodies from alluvial wells may differ from monthly well pumping due to lag effects in the groundwater. These lags were not determined as part of this study.

Regional Municipal Water Systems

Two regional municipal water supply systems are located within the Basin: The Big Horn Regional Water Supply System and the Shoshone Regional Water Supply System. The Big Horn Regional Water Supply System was constructed to provide primary, secondary or emergency potable water supplies to its member entities. Table 8 summarizes the entities served and the system design flows associated with each of the member entities, which include City of Worland, Washakie Rural Improvement & Service District, Town of Basin/South Big Horn, Town of Greybull, Burlington/Otto, Basin Gardens, Kirby/Lucerne and users north of Basin.

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Table 8. Member Entities and Associated Design Flows for Big Horn Regional Northern Supply Pipeline

Entity Primary Supply

(mgd) Secondary

Supply (mgd) Emergency

Supply (mgd) City of Worland -- -- 2.01 Washakie Rural ISD 0.97 -- -- Town of Basin/South Big Horn -- 0.21 -- Town of Greybull -- 0.83 -- Burlington/Otto 0.27 -- -- Basin Gardens 0.05 -- -- Kirby/Lucerne -- 0.14 -- North of Basin -- 0.14 -- Subtotals 1.29 1.33 2.01 Total 4.64

The Big Horn Regional system is supplied water primarily from the City of Worland Well #3, a 2,334-foot deep, artesian well completed in the Madison Formation. Flow tests on the well in 2006 determined an estimated capacity of the well at 5,000 gpm at a wellhead pressure of 28.5 psi. The shut in pressure of the well when it was drilled was 206 psi and its normal operating wellhead pressure is currently about 150 psi. The Big Horn Regional system can also be supplied by the Husky-Worland Well #1, a 4,210-foot deep well located about one mile southeast of the Worland Well #3. Its estimated capacity subsequent to flow testing in 2006 is 1,325 gpm at a wellhead pressure of 31 psi. The location of the pipeline and the supply wells is shown in Figure 2. The Big Horn Regional Joint Powers Board is continuing investigations into expansion of the Bighorn Regional system, including feasibility studies of an extension west to the Burlington-Otto area and south to the Lucerne Water & Sewer District and Kirby. Existing Level III funding is authorized for construction of the segment to Kirby, with construction set to begin sometime in 2010. Additionally, Level II well siting and drilling focused in the northern part of the system near Greybull is currently being conducted to provide additional groundwater supply to the system. The Shoshone Regional Water Supply System was constructed to provide treated and raw water supplies to the communities of Cody, Powell, Byron, Lovell, Deaver and Frannie, as well as the Northwest Rural Water District’s nine service areas. The Shoshone Municipal Pipeline has 9,275 acre feet of storage in the Buffalo Bill Reservoir with additional storage in the communities of Cody (2.0 million gallons), Powell (1.9 million gallons), Lovell (1.2 million gallons) and Northwest Rural Water District (915,000 gallons). The treated water pipeline consists of a 36 inch diameter steel pipe from the Municipal Pipeline Water Treatment Plant to Cody, 24 inch steel pipe to Powell, 18 inch steel pipe to Deaver/Frannie spur, and 16 inch steel pipe to Lovell. The Deaver/Frannie spur is 10 inch PVC pipe for the first 4 miles and 8 inch PVC pipe on to Deaver and Frannie. The capacity of the Municipal Pipeline Water Treatment Plant is 16.5 million gallons per day. It is projected that it will serve the needs of the area until about 2025. The plant has been designed to have a fourth module added at that time to increase the capacity to 22 mgd, which is projected to serve the area needs beyond the year 2030. The location of the pipeline and the communities it serves within the Basin is shown in Figure 2. Return flows for both regional systems are accounted for in the previous section.

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Figure 2. Regional Water Systems in Wind Bighorn Basin

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Washakie

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Wyoming Water Development Commission

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Section 3 – Non-Community Public Water Use Profile As of early 2009, the USEPA SDWIS (USEPA, 2009) lists 98 non-community public water systems within the Basin. This includes both transient and non-transient non-community water systems. Transient non-community water systems are public water systems that provide water in a place such as gas stations or campgrounds where people do not remain for long periods of time and are open at least 60 days/year. Non-transient non-community water systems are public water systems that regularly supply water to at least 25 of the same people at least six months per year, but not year-round, such as schools, factories, office buildings, and hospitals which have their own water systems (USEPA, 2008). Based on the information provided by the USEPA SWDIS database, water supply for these water systems is supplied by both groundwater and surface water sources. A summary listing of all water systems in the USEPA SWDIS database for the Wind-Bighorn Basin is presented in Appendix A. The average daily population served by these non-community systems, according to the USEPA, is 18,400 people. To estimate domestic water usage from these 98 non-community public water systems, the use rate of 75 gallons per capita per day (gpcpd) as assumed in the previous Basin Plan analysis (LA, 2002) was used in the current analysis. This assumption yields a total non-community water use within the Basin of 1.38 million gallons per day (mgd).

Section 4 - Domestic Water Use Profile Rural domestic water use is defined as household water use within the Basin that is not supplied by the community/municipal water systems discussed in Section 3. Within the Basin there are 13,638 permitted groundwater wells that are used for domestic purposes, with 9,693 utilized for domestic use only, and 3,945 wells utilized for either domestic-stock water use or mixed domestic water use classified as domestic-other (WSEO, 2009). Table 9 summarizes the permitted domestic groundwater wells within the Basin by county. Locations of all wells permitted for domestic use are shown in Figure 3. Table 9. Wind-Bighorn Basin Domestic Water Wells by County

County All Domestic Wells Domestic Only Domestic-Stock Domestic-Other

Big Horn 1,477 1,060 395 22 Fremont 4,959 3,538 1,333 88 Hot Springs 628 290 313 25 Johnson 7 2 5 0

Natrona 31 12 19 0 Park 5,164 3,714 1,415 35 Teton 0 0 0 0 Washakie 1,372 1,077 271 24

Total 13,638 9,693 3,751 194

Assuming most of the rural domestic water use in the Basin is supplied by domestic water wells, domestic water use by county was estimated by subtracting the total population served by community water systems in the USEPA database from the estimated total population for each community from the US Census Bureau. Population estimates could not be used for Natrona and Johnson Counties because only a small portion of these counties are included in the Basin. Data for the domestic wells located within the study area in Natrona and Johnson Counties was therefore estimated based on average household size, the number of wells, and an assumed per capita usage rate. As per the previous Basin Plan, it is assumed that there are 2.5 persons for each of these domestic wells. For Teton County, no domestic wells are located within the study area, therefore estimates of domestic well water use was zero. A summary of the domestic well water use calculations is provided below in Table 10.

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Table 10. Domestic System Population Estimates by County in the Wind-Bighorn Basin

County Total Population

(US Census Bureau 2009)

Population Served by

Community Water Systems (USEPA 2009)

Estimated Population Serviced by Domestic

System (1)

Estimated Domestic

Groundwater Use

Minimum (mgd)

Estimated Domestic

Groundwater Use

Maximum (mgd) Bighorn 11,322 10,724 598 0.090 0.179 Fremont 38,113 20,609 17,504 2.626 5.251 Hot Springs 4,622 4,289 333 0.050 0.100 Johnson ND ND 18 0.003 0.005 Natrona ND ND 78 0.012 0.023 Park 27,574 21,452 6,122 0.918 1.837 Washakie 7,821 7,354 467 0.070 0.140 Total 89,452 64,428 25,120 3.768 7.536 Notes:

1 Estimated population serviced by domestic system = total population - population served by community water

systems.

Assuming the same rural domestic per capita water use range as the previous Basin Plan (LA, 2002b), between 150 and 300 gpcpd, and the population serviced by domestic wells for the Basin of 25,120 people, the estimated domestic groundwater use is between 3.8 and 7.5 mgd.

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Figure 3. Domestic Wells in Wind Bighorn Basin (WSEO, 2009; WRIR, 2009)

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!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!(!(!( !( !(!(!(!(!(!(!(!( !(!( !(!(!(!( !(!(!(!( !(!(!( !(!(!(!( !( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!( !(!(!( !(!(!( !(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!( !(!(!(!(!(!(!( !( !(!(!( !(!(!(!(!( !(!(!(!( !(!( !(!( !(!(!(!(!(!(!(!(!(!(!( !(!(!(!( !( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!( !(!(!( !(!( !( !(!(!( !(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!( !( !(!( !(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!( !(!( !(!(!( !(!(!(!(!(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!( !( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!( !(!(!(!(!( !( !(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!( !( !(!(!(!(!(!(!(!(!(!( !(!(!( !( !(!(!(!( !(!(!(!( !(!(!(!(!(!(!( !(!(!(!(!(!(!(!( !( !(!( !(!( !(!(!(!(!(!(!(!(!( !( !(!(!(!(!( !(!(!(!( !(!(!(!( !( !(!( !(!( !(!(!(!(!(!(!(!(!(!(!( !(!(!( !(!( !(!(!(!( !(!(!(!(!(!(!(!( !(!(!(!(!( !( !(!( !(!(!(!(!(!( !(!( !(!(!(!(!( !(!(!(!(!(!(!(!( !(!( !( !( !( !(!(!(!(!(!(!(!(!(!(!(!( !( !( !(!( !(!(!( !(!(!(!(!(!(!(!( !(!(!( !( !(!(!( !(!(!(!(!(!(!(!(!( !(!(!( !(!( !(!(!(!(!(!(!(!(!(!(!( !(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!( !(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!( !( !(!(!(!( !(!(!( !(!(!(!( !( !(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!( !( !(!(!(!(!(!(!(!( !(!(!(!(!( !(!(!(!(!( !(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!( !( !(!( !(!( !(!(!( !(!(!( !( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!( !(!(!(!(!( !(!( !( !( !(!(!( !(!( !( !(!(!(!(!(!( !(!(

Park

Fremont

Big Horn

Washakie

Hot Springs

Teton

Natrona

Yellowstone Lake

Boysen Reservoir

Bighorn

Lake

Buffalo Bill

Reservoir

Bull

Lake

Legend

!( Domestic Wells

Wind River Reservation

Basin Boundary

County Boundary

±0 20 40 60 8010

Miles

Wyoming Water Development Commission

16

Section 5 –Municipal and Domestic Water Use Summary Municipal water use for the Basin is supplied by 60 active municipal water systems relying on both surface water resources (~58 percent of total use) and groundwater resources (~42 percent of total use). Total average municipal water use was 13,428 acre-feet per year, with a storage capacity of approximately 132 acre feet per year (plus additional storage from Buffalo Bill Reservoir) to meet seasonal variations in municipal water use. The largest municipal surface water diversion from the Basin was the Shoshone Municipal Pipeline, which delivered water to about 24,600 people from storage in Buffalo Bill Reservoir. Non-Community water use in the Basin was estimated at 1.4 mgd (1,568 acre-feet per year), based on an average daily population of 18,400 served by these systems. Domestic water use by rural domestic users for the Basin ranged from 3.8 to 7.5 mgd (4,256 to 8,400 acre-feet per year). Per capita water use was assumed to range from 150 to 300 gpcd for domestic water users in order to estimate total domestic demands. A summary of total municipal, non-community and domestic water use is presented in Table 11. Table 11. Summary of Municipal, Non-Community, and Domestic Water Use in the Wind-Bighorn Basin

Type of Water System Water Use

(mgd) Water Use

(acre-feet/year)

Municipal Surface Water 6.9 7,728 Municipal Groundwater 5.1 5,700 Municipal Total 12.0 13,428 Non-Community Ground and Surface Water 1.4 1,568 Domestic Groundwater 3.8 – 7.5 4,256 – 8,400 Total 17.2-20.9 19,252-23,396

Section 6 - References Lidstone & Associates (LA). 2002a. Technical Memorandum from Mark E. Stacy and Chris Lidstone to Doug Beahm and Jon Wade re: Wind/Bighorn Basin Plan Municipal Basin Water Use Profile. October 4. Lidstone & Associates (LA). 2002b. Technical Memorandum from Mark E. Stacy and Chris Lidstone to Doug Beahm and Jon Wade re: Wind/Bighorn Basin Plan Domestic Water Use Profile. December 9. MWH. 2001. (Draft) Final Draft Report – Quantification of Future Fry-Ark Project Return Flows and Exchanges for Entities West of Pueblo. Prepared for the Southeastern Colorado Water Conservancy District, Board of Water Works of Pueblo and Colorado Springs Utilities. October 26. Soil Conservation Service (SCS). 1993. Part 623 National Engineering Handbook Chapter 2 Irrigation Water Requirements. United States Department of Agriculture. 210-vi-NEH, September. Urbigkit, William. 2009. Personal Communication, City of Riverton. October 1. U.S. Census Bureau. 2009. Table 1: Annual Estimates of the Resident Population for Counties of Wyoming: April 1, 2000 to July 1, 2008 (CO-EST2008-01-56). March 19. U.S. Environmental Protection Agency (USEPA). 2009. FACTOIDS: Drinking Water and Groundwater Statistics for 2008. Office of Water (4601M) EPA 816-K-08-004. November. www.epa.gov/safewater/data

17

U.S. Environmental Protection Agency (USEPA). 2009. Safe Drinking Water Information System. http://www.epa.gov/safewater/databases/sdwis/index.html Wind River Indian Reservation. 2009. Tribal Engineer’s Groundwater Well Database. Obtained from Wyoming State Geological Survey. May 28 Wyoming Water Development Commission (WWDC). 2007. State of Wyoming, Water System Survey Report. Wyoming Water Development Commission (WWDC). 2009. State of Wyoming, Water System Survey Report. Wyoming State Engineer’s Office (WSEO). 2009. State Engineer’s Office Permitted Wells Database. Current as of 2008. Obtained from Wyoming State Geological Survey. May 28. http://seo.state.wy.us/wrdb/index.aspx Wyoming State Engineer’s Office (WSEO). 2010. State Engineer’s Office Permitted Wells Database. Current as of 2009. Obtained from Wyoming State Geological Survey. January. Wyoming State Geological Survey (WSGS). 2009. Wind River Indian Reservation groundwater well database, compiled by WRIR Tribal Engineer. Provided by Melissa Thompson at WSGS. May 28.

DISCLAIMER The following disclaimer applies to all water rights information contained in this document, which was taken from State of Wyoming, State Engineer’s Office (WSEO) website (http://seo.state.wy.us/wrdb/index.aspx):

The data contained herein are provided AS IS and IN NO EVENT SHALL the State of Wyoming, its agencies or representatives, be LIABLE for any DAMAGES including, without limitation, damages resulting from lost data or profits or revenue the costs of recovering such data, the cost of substitute data, computer repair or replacement costs, claims by third parties for similar costs, or any special, direct or indirect, incidental, punitive or consequential damages of any kind whatsoever, arising out of the use of these data. The accuracy or reliability of the data IS NOT GUARANTEED or WARRANTED in any way and the State of Wyoming, its agencies or representatives, EXPRESSLY DISCLAIM LIABILITY, whether expressed or implied, or of any kind whatsoever, including, without limitation, liability for QUALITY, PERFORMANCE, MERCHANTABILITY AND FITNESS FOR THE PARTICULAR PURPOSE arising from the use of the data, NEITHER the State of Wyoming, NOR its agencies or representatives, including the State Engineer’s Office, REPRESENT or ENDORSE the ACCURACY or RELIABILITY OF ANY INFORMATION contained in the database, as some of the data are provided by permit applicants and may not have been verified by the State of Wyoming, its agencies or representatives. The State of Wyoming, its agencies and representatives RESERVE THE RIGHT, at their sole discretion, WITHOUT OBLIGATION, to MODIFY, ADD OR REMOVE all or portions of the data , at any time, WITH OR WITHOUT NOTICE. This includes the correction of errors or omissions within the database. All data or information provided by the Wyoming State Engineer’s Office shall be used and relied upon only at the USER’S SOLE RISK, and the user agrees to indemnify and hold harmless the State of Wyoming, its agencies or representatives, including the Wyoming State Engineer’s Office, and its officials, officers, and employees, from any liability arising out of the use or distribution of these data.

18

Appendix A Municipal Water Use Data

19

Table A1. Summary of USEPA Safe Drinking Water Information System for Counties in the Wind-Bighorn Basin

Population Served

Community Water System Non-Transient Non-Community Water

System Transient Non-Community Water System Total

County Water System Water

System ID

Number of Service

Connections Ground-

water Surface Water Total

Ground-water

Surface Water Total

Ground-water

Surface Water Total

Ground-water

Big Horn AIRPORT BENCH WATER & SEWER DI WY5601385 20 26 26 26

AMERICAN COLLOID COMPANY WY5601252 5 90 90 90

BASIN, TOWN OF WY5600004 640 1,100 1,100 1,100

BENTONITE PERFORMANCE MINERALS/LOVELL WY5601475 3 71 71 71

BIGHORN CANYON NAT'L REC. AREA WY5680175 9 25 25 25

BIGHORN NF BOULDER PARK WY5680004 6 150 150 150

BIGHORN NF SHELL FALLS INT ST WY5680008 1 1,500 1,500 1,500

BIGHORN NF SITTING BULL CG WY5680005 6 100 100 100

BIGHORN NF TYRRELL WORK CENTER WY5601009 12 30 30 30

BIGHORN NF-RANGER CREEK CAMPGROUND WY5680243 18 40 40 40

BURLINGTON, TOWN OF WY5601098 113 210 210 210

BYRON, TOWN OF WY5600008 245 575 575 575

CAMP COCA-COLA LOS ANGELES WY5601513 1 55 55 55

COWLEY, TOWN OF WY5600206 285 485 485 485

DEAVER MUNICIPAL WATER SYSTEM WY5600016 103 230 230 230

FRANNIE, TOWN OF WY5600210 88 230 230 230

GEORGIA-PACIFIC GYPSUM LLC WY5600611 4 78 78 78

GREYBULL HEIGHTS WATER USERS WY5600230 31 70 70 70

GREYBULL, TOWN OF WY5600022 1,300 3,200 3,200 3,200

HYATTVILLE SERVICE & IMPROVEMENT DIST WY5600209 50 60 60 60

LOVELL, TOWN OF WY5600031 1,000 2,131 2,131 2,131

MANDERSON, TOWN OF WY5600204 59 83 83 83

MEADOWLARK LAKE RESORT WY5600362 17 60 60 60

MEDICINE LODGE ST HIST SITE WY5600979 6 110 110 110

SHELL VALLEY WEST W & S WY5601272 30 45 45 45

SHELL WATER USERS, INC. WY5600205 22 55 55 55

SOUTH BIG HORN COUNTY JPB WY5601454 800 2,084 2,084 2,084

SOUTH END WATER & SEWER DIST. WY5600970 35 140 140 140

Big Horn Total 7,558 3,166 10,724 239 239 2,070 2,070 13,033

Fremont ABSAROKA RANCH WY5600983 8 30 30 30

ATLANTIC CITY MERCANTILE, INC. WY5600432 5 48 48 48

B&K MOBILE HOME PARK WY5600180 43 95 95 95

BITTERROOT RANCH WY5601511 16 45 45 45

BOYSEN ST PK COTTONWOOD WY5600659 3 25 25 25

BOYSEN ST PK FREMONT BAY WY5600658 3 25 25 25

BOYSEN ST PK HDQRTS WY5600654 22 25 25 25

BOYSEN ST PK LOWER WIND RIVER WY5600656 11 30 30 30

BOYSEN ST PK TOUGH CREEK #2 WY5601189 2 25 25 25

BOYSEN ST PK UPPER WIND RIVER WY5600655 6 30 30 30

BROOKS LAKE LDG (BL PROPERTY, LLC) WY5601400 10 46 46 46

BURLINGTON RESOURCES WY5601462 19 66 66 66

C M RANCH LLC WY5600396 18 25 25 25

COZY MOBILE HOME PARK WY5600181 72 115 115 115

CROOKED CREEK GUEST RANCH WY5601542 19 30 30 30

CROWHEART STORE WY5601157 4 70 70 70

20

Population Served

Community Water System Non-Transient Non-Community Water

System Transient Non-Community Water System Total

County Water System Water

System ID

Number of Service

Connections Ground-

water Surface Water Total

Ground-water

Surface Water Total

Ground-water

Surface Water Total

Ground-water

DUBOIS WATER SYSTEM, TOWN OF WY5600177 436 1,067 1,067 1,067

FARVIEW WATER AND SEWER DISTRICT WY5601546 14 31 31 31

FIRST FIKE SUBDIVISION WY5600194 55 150 150 150

FREMONT COUNTY YOUTH CAMP WY5600389 3 338 338 338

GARDENS NORTH HOMEOWNERS ASSN WY5600774 120 250 250 250

HUDSON, TOWN OF WY5600183 210 450 450 450

JEFFREY CITY WATER & SEWER DISTRICT WY5600106 25 40 40 40

JUNIPER PARK WTR. ASSN. WY5601275 19 42 42 42

KINNEAR STORE WY5601577 8 25 25 25

LANDER, CITY OF WY5600176 2,899 6,800 6,800 6,800

LAVA MOUNTAIN LODGE (POVERTY HILL LLC) WY5600407 25 75 75 75

LAZY L AND B RANCH WY5600741 11 30 30 30

LINE SHACK LODGE LLC WY5601479 19 50 50 50

LONGHORN RV AND MOTEL WY5601538 17 75 75 75

MHHC SIXTH CROSSING RANCH RV PARK WY5601487 26 200 200 200

MHVC SAGE CG WY5601559 1 60 60 60

MINERS GRUBSTAKE, LLC WY5601105 2 25 25 25

MONROE AVE MHP WY5600179 35 100 100 100

MOUNTAIN VIEW ACRES WY5600182 55 165 165 165

NORTH RIVERTON WTR & SWR DIST. WY5600173 60 120 120 120

OWL CREEK KAMPGROUND WY5600702 20 25 25 25

PAINTBRUSH MOTEL WY5601452 2 28 28 28

PAVILLION, TOWN OF WY5600039 120 150 150 150

RAINTREE ESTATES WY5601100 25 75 75 75

REDD FOX PARK HOMEOWNERS ASSOC WY5600805 23 50 50 50

RING LAKE RANCH INC WY5600404 12 35 35 35

RIVERTON, CITY OF WY5600047 3,500 9,900 9,900 9,900

ROCK CREEK HOLLOW-LDS CHURCH WY5601438 2 100 100 100

SAWMILL LODGE WY5601543 2 65 65 65

SECOND FIKE SUBDIVISION WY5600195 17 34 34 34

SHOSHONE NF PINNACLE CAMPGRND WY5680206 3 25 25 25

SHOSHONI, TOWN OF WY5600053 300 635 635 635

SINKS CANYON CENTER WY5601366 3 55 55 55

SINKS CANYON STATE PK-POPO AGIE WY5601190 2 25 25 25

SLEEPING BEAR RANCH RV RESORT WY5601408 58 35 35 35

SPENCER HOMESITES WY5600184 17 40 40 40

SUNNYSIDE MOBILE HOME PARK WY5601556 19 25 25 25

SUNRIDGE ESTATES WY5601225 144 220 220 220

TETON VALLEY RANCH CAMP WY5600524 17 125 125 125

TIMBERLINE RANCH WY5600933 6 40 40 40

TRIANGLE C RANCH WY5600400 20 21 21 21

WARM SPRINGS WATER DISTRICT WY5600861 47 55 55 55

WY TRANS DEPT DIVERSION DAM RA WY5601042 2 350 350 350

WY TRANS DEPT SO. PASS REST RA WY5600965 5 300 300 300

WY TRANS DEPT SWEETWATER RA WY5601043 2 150 150 150

Fremont Total 3,409 17,200 20,609 66 66 2,512 199 2,711 23,386

Hot Springs EAST THERMOPOLIS, TOWN OF WY5600226 123 274 274 274

KIRBY, TOWN OF WY5600236 32 57 57 57

21

Population Served

Community Water System Non-Transient Non-Community Water

System Transient Non-Community Water System Total

County Water System Water

System ID

Number of Service

Connections Ground-

water Surface Water Total

Ground-water

Surface Water Total

Ground-water

Surface Water Total

Ground-water

LONGWELL RANCH/COUNTRY CAMPING WY5601405 18 65 65 65

LUCERNE WATER AND SEWER DIST. WY5600935 102 300 300 300

RED LANE DOMESTIC WATER, INC. WY5600232 48 111 111 111

SOUTH THERMOPOLIS WAT/SEW DIS WY5601083 105 300 300 300

THERMOPOLIS, TOWN OF WY5600056 1,800 3,247 3,247 3,247

WY TRANS DEPT GOOSEBERRY RA WY5601194 3 350 350 350

Hot Springs Total 4,289 4,289 415 415 4,704

Park 7D RANCH WY5600566 20 50 50 50

ABSAROKA LODGE WY5600467 13 50 50 50

BIG VALLEY & CROSSED ARROWS IMP DIST WY5601193 27 67 67 67

BIGHORN BASIN BOAT CLUB WY5600744 52 40 40 40

BILL CODY RANCH RESORT WY5600477 12 65 65 65

BLACKWATER LODGE, INC. WY5601424 16 50 50 50

BLM - FIVE SPRINGS CAMPGROUND WY5680240 3 25 25 25

BUFFALO BILL DAM VISITOR CTR WY5601246 1 25 25 25

BUFFALO BILL ST PK NO.SHORE BA WY5601268 8 25 25 25

BUFFALO BILL ST PK NORTH FORK WY5600667 9 30 30 30

CAMP BUFFALO BILL WY5601373 13 225 225 225

CLARK ELEMENTARY SCHOOL WY5601059 1 33 33 33

CODY, CITY OF WY5600207 3,805 8,200 8,200 8,200

COOPER SUB MOBILE HOME PARK WY5601450 50 100 100 100

CROSSED SABRES GUEST RANCH WY5600443 4 65 65 65

EDELWEISS WY5600860 14 25 25 25

ELEPHANT HEAD LODGE WY5600461 17 55 55 55

ENCORE ENERGY PARTNERS, AKA CLARKS FORK WY5600906 10 60 60 60

GOFF CREEK LODGE WY5600468 14 53 53 53

GREEN ACRES MOBILE HOME PARK WY5600238 125 375 375 375

GREEN CREEK INN & RV WY5601574 4 50 50 50

HUNTER PEAK RANCH WY5600446 10 30 30 30

JUBY`S MOBILE HOME PARK WY5601496 76 300 300 300

K BAR Z GUEST RANCH WY5600448 8 30 30 30

MEETEETSE, TOWN OF WY5600035 230 350 350 350

NORTH END WATER USERS WY5600043 205 489 489 489

NORTHWEST COLLEGE FIELD STATION WY5601573 3 80 80 80

NORTHWEST RURAL WATER DISTRICT WY5601254 1,940 4,750 4,750 4,750

PAHASKA TEPEE RESORT WY5600439 17 340 340 340

PAINTER ESTATES HOA WY5601554 20 12 12 12

PAINTER OUTPOST, LLC. WY5601552 1 55 55 55

POWELL, CITY OF WY5600042 2,070 6,700 6,700 6,700

RIMROCK RANCH WY5601521 13 40 40 40

RIVERS BEND TRAILER COURT WY5600212 32 96 96 96

SHOSHONE LODGE WY5600478 14 50 50 50

SHOSHONE MUNICIPAL PIPELINE WY5601198 30 25 25 25

SHOSHONE NF - NEWTON CREEK #12 WY5680221 1 25 25 25

SHOSHONE NF - REX HALE CG WY5680224 15 75 75 75

SHOSHONE NF BEARTOOTH LAKE CG WY5680237 2 80 80 80

SHOSHONE NF EAGLE CREEK EAST WY5680216 1 50 50 50

SHOSHONE NF EAGLE CREEK MID WY5680217 1 50 50 50

22

Population Served

Community Water System Non-Transient Non-Community Water

System Transient Non-Community Water System Total

County Water System Water

System ID

Number of Service

Connections Ground-

water Surface Water Total

Ground-water

Surface Water Total

Ground-water

Surface Water Total

Ground-water

SHOSHONE NF EAGLE CREEK WEST WY5680218 1 50 50 50

SHOSHONE NF FOX CREEK CG WY5680236 6 120 120 120

SHOSHONE NF THREE MILE CG-EAST WY5680017 1 50 50 50

SHOSHONE NF-WAPITI CG & RANGER STATION WY5680019 11 200 200 200

TRAIL SHOP WY5600570 6 40 40 40

UXU RANCH LLC WY5600457 14 45 45 45

WAPITI ELEMENTARY SCHOOL WY5600571 1 30 30 30

WAPITI LODGE & STEAK HOUSE WY5600460 2 25 25 25

YELLOWSTONE NP CANYON VILLAGE WY5680074 200 9,800 9,800 9,800

YELLOWSTONE NP PEBBLE CREEK WY5680086 2 100 100 100

YELLOWSTONE NP SLOUGH CREEK WY5680152 2 40 40 40

YELLOWSTONE NP TOWER FALLS WY5680089 12 100 100 100

YELLOWSTONE VALLEY INN WY5600471 52 50 50 50

Park Total 656 20,796 21,452 63 60 123 2,080 10,290 12,370 33,945

Washakie BIG HORN SKI RESORT WY5600688 1 150 150 150

CIRCLE J RANCH WY5601165 21 200 200 200

DEER HAVEN LODGE WY5600565 20 50 50 50

SOUTH WORLAND WATER USERS INC WY5600235 163 490 490 490

TENSLEEP, TOWN OF WY5600203 197 304 304 304

WASHAKIE RURAL WATER SYSTEM WY5601523 215 360 360 360

WORLAND UTILITIES COMMISSION WY5600197 2,300 6,200 6,200 6,200

Washakie Total 7,354 7,354 400 400 7,754

Grand Total 18,977 45,451 64,428 368 60 428 7,477 10,489 17,966 82,822

Measures and Dimensions included in the Inventory pivot table

Measures:

TotSys Number of current, active systems

TotPop Population served by current, active systems

Dimensions: Members: Description of members

PWSType

CWS Community Water System: A public water system that supplies water to the same population year-round.

NTNCWS

Non-Transient Non-Community Water System: A public water system that regularly supplies water to at least 25 of the same people at least six months per year, but not year-round. Some examples are schools, factories, office buildings, and hospitals which have their own water systems.

TNCWS Transient Non-Community Water System: A public water system that provides water in a place such as a gas station or campground where people do not remain for long periods of time and is open at least 60 days/year.

Gw/sw Surface Water includes the following primary sources of water: SW, SWP, GU, GUP

Groundwater includes the following primary sources of water: GW and GWP

23

Table A2 – Wind-Bighorn Basin Plan: 2007 Municipal Water Use Summary for Entities Primarily Relying on Groundwater (WWDC 2007)

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd) Avg Day

Use (gpd) Peak Day Use (gpd)

Sell Bulk Wate

r

% Loss by

Leak-age

Other Condi-tions

# of Wells

Well Depth Min (ft)

Well Depth

Max (ft)

Wellhead Protec-

tion

Conservation Mea-sures

Type of Diver-sion

Surface Source

Other Source

Total Max

Capa-city

(gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treat-ment

Percent Metered

Airport Bench Water & Sewer District

WYDOT Rest Area, County Airport

27 0 10,406 SO, LK 3 3,000 Yes NONE n/a Greybull Madison/Big Horn Wells

1,500 DC 100

Basin None 1,200 620 40 250 850 300,000 1,000,000 35 FD, LK 2 4,130 4,173 No NONE S. Big Horn

Co. JPB

None 600 24,000 1,000,000 DC 99

Big Valley & Crossed Arrows Improvement Dist.

N/A 35 20 0 100 200 1,500 4,000 8 1 126 Yes None N/A N/A 15 5,000 None 0

Burlington N/A 250 115 0 320 50 120,000 160,000 No 9 FD 2 35 45 Yes None n/a None None Unknown

0 150,000 DC 100

Cooper Sub Mobile Home Park

N/A 100 50 0 1 80 100 No n/a None None 0 0 None 0

Cowley South End Water & Sewer District

800 1 2,400 2,400 Yes n/a None Deaver Municipal Water

& Shosho

ne Municip

al Pipeline

950 0 200,000 DC

East Thermopolis, Town of

274 75 1 3 No Surface Direct, Alluvial Wells

Big Horn River

(consecutive

system with

Thermopolis)

N/A DC, F, TP

95

Farview WSD

None 360 70 0 55 109 17,000 43,500 N/A 10 LF, OT 1 275 275 Yes No n/a None None 400 250,000 None 100

Frannie, Town of

N/A 207 N/A 99

Gardens North Homeowners Association

None 200 175 0 170 200 34,000 40,000 N/A UNK FD 1 400 No None NA 124 0 200,000 DC 0

Greybull N/A 3,000 1,000,000 1,400,000 Yes 4 SO, LF, FD

3 3,000 3,300 Yes TR, Lawn water

conservation

n/a None None 1,300 0 1,750,000 DC 100

Hudson None 500 225 4 250 500 125,000 250,000 No FF, LF, FD

10 40 60 Yes TR, WO Alluvial Wells

None None 300 10,000 200,000 DC 97

Hyattville Water Company

None 48 42 8 85 85 4,080 4,080 No 0 1 2,860 2,860 No OT n/a None None 100 0 25,000 None 0

Lucerne Water & Sewer Dist.

Kirby 117 117 0 27,000 33,000 Yes 1 FD N/A None Big Horn River

Thermopolis

Treatment Plant from Big

Horn River

200 200,000 Thermopolis

Treatment Plant

100

Manderson None 54 0 No NONE 2 860 860 No NONE n/a None None 100 0 70,000 DC 95 Monroe Avenue Mobile Home Park

None 200 34 0 900 3 Yes NONE Alluvial Wells

Nipper 1,2,3

None 100 None 0

24

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd) Avg Day

Use (gpd) Peak Day Use (gpd)

Sell Bulk Wate

r

% Loss by

Leak-age

Other Condi-tions

# of Wells

Well Depth Min (ft)

Well Depth

Max (ft)

Wellhead Protec-

tion

Conservation Mea-sures

Type of Diver-sion

Surface Source

Other Source

Total Max

Capa-city

(gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treat-ment

Percent Metered

North End Water Users

None 500 205 0 540 1,350 162,000 270,000 No 1 SO, LF, OT

3 50 50 Yes NONE n/a None None 750 200,000 0 None 100

North Riverton WSD

None 150 51 0 48 48 7,333 7,333 NA UNK LK 1 228 228 No No n/a None None 33 500 0 None 100

Pavillion None 126 129 3 150 220 24,518 30,000 Yes LF, FD 5 345 510 Yes NONE n/a None 25 308,700 DC 97 Raintree Improvement and Service District

None 72 29 0 76 110 5,500 6,200 2 320 460 Yes OT n/a None None 25 5,000 None 0

Riverton, City of

N/A 4,403 0 2,600,000 3,500,000 Yes 7 SO, LF, FD

13 600 1,823 Yes TR Surface Direct

Wind River

N/A 5,400 5,350,000 DC, F, TP

90

Shell Valley West Water & Sewer

None 50 0 0 4 8 0 Yes; Greybull

NONE n/a Consecutive

System

N/A N/A None 100

Shell Water Users, Inc.

None 50 201 0 0 0 0 N/A 0 Yes; Greybull

NONE Greybull Consec

utive System

N/A N/A 0 0 None 100

Shoshoni None 550 400 0 408 814 220,643 425,498 2 FF, LF, FD, LK

4 560 1,051 Yes OT n/a None None 880 0 500,000 DC 98

South Big Horn County Joint Powers Board

South Bighorn Co Water District, Basin & Manderson

1,700 235 352 400,000 600,000 Yes 5 LF 2 5,200 5,300 Yes NONE None 800 100,000 DC 90

South Worland Water Users, Inc.

None 432 180 0 0 Yes NONE n/a None Consecutive

system from

Worland

UNK None 100

Sunridge Estates

None 250 143 0 LF, FD 1 460 Yes NONE n/a None None 120,000 0 120,000 DC 0

Ten Sleep None 400 168 37 32 50 12,800 20,000 1 FD, LK 2 1,050 1,098 Yes NONE n/a None None 226 0 0 None 0 Thermopolis, Town of

Several UNK 1,515 388 530 1,060 1,000,000 3,000,000 15 LF, FD, LK

4 30 30 Yes OT SD Bighorn River

None 4,000 500,000 2,750,000 DC, F, TP, OT

100

Town of Dubois

Painted Hills Subdivision

1,100 594 8 187 437 200,000 466,000 Yes 20 LF, FD 4 60 68 Yes NONE None None 930 650,000 DC, OT 99

Warm Springs Water District

None 120 52 0 240 450 11,500 21,500 No 3 LF, FD, LK, FF

1 712 712 Yes NONE n/a None Hart #1 245 0 200,000 DC 0

Washakie Rural Water System

N/A 800 400 0 200 300 80,000 90,000 Yes LF 0 TR, WO N/A Water purchased from

Big Horn

Regional JPB

and City of

Worland

80,000 80,000 DC 100

Worland Utilities Commis-sion

South Worland, Washakie Rural, Hillcrest, and more

Yes 2 2,400 2,400 No n/a None None 99

Other Entities: Lists any other entities which are supplied water from the system. Total Pop. Served: The total population served by the water system. Percent Metered: An estimated percentage of water system taps that are metered. # Taps In/Outside The number of service connections within the boundaries of the entity. The number of service connections outside the entity boundaries.

25

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd) Avg Day

Use (gpd) Peak Day Use (gpd)

Sell Bulk Wate

r

% Loss by

Leak-age

Other Condi-tions

# of Wells

Well Depth Min (ft)

Well Depth

Max (ft)

Wellhead Protec-

tion

Conservation Mea-sures

Type of Diver-sion

Surface Source

Other Source

Total Max

Capa-city

(gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treat-ment

Percent Metered

Entity: # of Wells: The number of wells used by an entity. # of Springs: The number of springs used by an entity. Type of Diversion: Surface Direct (SD), Infiltration Gallery (IG), Alluvial Wells (AW), Dam (DM), Other (OT); N/A is used for entities with no source of surface water. Surface Source: The surface source of an entity's water supply. Other Source: The name of other water systems or municipalities that provide the entity with water supply. Total Max Capacity: The total production capabilities of all water sources in the particular entity, expressed in gallons per day (gpd). Max Storage: The maximum values of water storage capacity, treated and untreated, in gallons.

Treatment: Methods that the water system currently uses on a regular basis to treat the water supply, including: Disinfection/Chlorination (DC), Filtration (FL), Conventional Water Treatment Plant (TP), Other (OT)

Avg Daily Use: The daily water use averaged and reported in gallons per capita per day (gpcpd). Peak Daily Use: The maximum amount of water used per person per day reported in gallons per capita per day (gpcpd). Avg Day Use: The total gallons of water used by the water system on an average day in gallons per day (gpd). Peak Day Use: The maximum gallons of water used by the system in a 24 hour period in gallons per day (gpd). Sell Bulk Water: Yes or No, if the entity sells bulk water on a regular basis. % Loss by Leakage: The percentage of total water used by the system lost through leakage. Most answers are approximations. Values given that were less than 1% are displayed as 1%.

Other Conditions: Any other condition that may affect the amount of water used by a system, including: Frost Flow (FF), System or Tank Overflow (SO), Line Flushing (LF), Fire System Usage (FD), Ponds (P), Leaks (LK), Other (OT)

Conservation Measures:

Programs supported by the entity to reduce water consumption and increase public awareness about water conservation, including: Tiered Rates (TR), Subsidies for Efficiency (SE), Municipal Wasting Ordinance (WO)

26

Table A3 – Wind-Bighorn Basin Plan: 2007 Municipal Water Use Summary for Entities with Only Surface Water (WWDC 2007)

Name of Entity

Other Entities Served

Total Pop. Ser- ved

# Taps in En-

tity

# Taps Out- side

Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd) Avg Day

Use (gpd) Peak Day Use (gpd)

Sell Bulk

Water

% Loss

by Leak -age

Other Condi -tions

# of Well

s

Well Depth Min (ft)

Well Depth Max (ft)

Well- head

Protec- tion

Conservation

Measures

Type of Diver- sion

Surface Source

Other Source

Total Max

Capacity (gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treat- ment

Percent Metered

Byron, Town of

None 600 277 5 100 316 60,000 190,000 No 9 LF, FD, LK

0 No WO n/a None Shoshone Municipal Pipeline

625 0 400,000 None 100

Cody, City of Juby's Trailer Ct., Green Acres Trailer Ct.

8,832 4,250 0 31 49 1,440,000 2,358,000 Yes 19 FF, LF 0 TR Inlet in Reservoi

r

Buffalo Bill Reservoir

(water purchased

from Shoshone Municipal Pipeline)

N/A 8,160 83,300 2,200,000 DC, F, Flocculation

99

Deaver Municipal Water System

None 210 70 16 145 409 32,529 92,000 Yes 17 LF, FD, LK, P

0 No OT SD Shoshone Muni

Pipeline

None Unknown 0 350,000 100

Juby's Mobile Home Park

N/A 350 1 1 Yes NA 0 NA None Surface Direct

City of Cody

N/A N/A 0 0 None 100

Kirby, Town of

None 50 41 2 133 216 4,000 6,500 No UNK LF, FD 0 OT n/a None Thermopolis

Treatment Plant from Big Horn

River

0 50,000 DC 99

Lander, City of

Red Fox Park 7,000 2,912 28 291 873 2,000,000 6,000,000 Yes 5 LF, FD 0 Yes None Surface Direct

Middle Fork of

Popo Agie River

N/A 8 7,000,000 DC, F, TP

95

Lovell, Town of

N/A 2,500 940 15 88 150 222,000 Yes LF, FD 0 UNK NONE Buffalo Bill Res.,

North Fork and South

Fork Shoshone

River

Unknown 1,300,000 treated by

Shoshone

Municipal

Pipeline

100

Meeteetse, Town of

None 415 225 10 136 1,136 30,000 180,000 No UNK FF. LF, FD

0 Yes None Surface Direct

Lower Sunshine Reservoir

None 350 0 568,000 OT 99

Northwest Rural Water District

None 4,812 1,925 0 65 100 312,812 481,250 No 6 LF, FD 0 No TR Surface Direct

Buffalo Bill Reservoir

None 0 865,000 TP 100

Powell, City of

N/A 5,300 2,800 0 158 849,036 Yes 20 0 None Buffalo Bill Reservoir

(water purchased

from Shoshone Municipal Pipeline)

N/A 1,900.000

1,900,000 None 98

Red Lane Domestic Water, Inc.

Homes in Red Lane Area

60 60 8,000 Yes None Thermopolis Water

17,000 100

Shoshone Municipal Pipeline

City of Cody, City of Powell, Lovell, Byron, Deaver, Frannie, & Northwest Rural Water District

Yes 1 Weather

0 High Rates

Dam Buffalo Bill Reservoir

Shoshone River below

Buffalo Bill Reservoir

for emergenci

es

15,278 316,890,097

1,183,500 DC, F, TP,

corrosion

control

100

South Thermopolis WSD

None 112 112 0 444 543 N/A SO, LF, FD

0 None N/A None Thermopolis

38 271,709 100

Other Entities: Lists any other entities which are supplied water from the system. Total Pop. Served: The total population served by the water system. Percent Metered: An estimated percentage of water system taps that are metered.

27

# Taps In/Outside Entity: The number of service connections within the boundaries of the entity. The number of service connections outside the entity boundaries. # of Wells: The number of wells used by an entity. # of Springs: The number of springs used by an entity.

Type of Diversion: Surface Direct (SD), Infiltration Gallery (IG), Alluvial Wells (AW), Dam (DM), Other (OT); N/A is used for entities with no source of surface water. Surface Source: The surface source of an entity's water supply. Other Source: The name of other water systems or municipalities that provide the entity with water supply. Total Max Capacity: The total production capabilities of all water sources in the particular entity, expressed in gallons per day (gpd). Max Storage: The maximum values of water storage capacity, treated and untreated, in gallons.

Treatment: Methods that the water system currently uses on a regular basis to treat the water supply, including: Disinfection/Chlorination (DC), Filtration (FL), Conventional Water Treatment Plant (TP), Other (OT) Avg Daily Use: The daily water use averaged and reported in gallons per capita per day (gpcpd). Peak Daily Use: The maximum amount of water used per person per day reported in gallons per capita per day (gpcpd). Avg Day Use: The total gallons of water used by the water system on an average day in gallons per day (gpd). Peak Day Use: The maximum gallons of water used by the system in a 24 hour period in gallons per day (gpd). Sell Bulk Water: Yes or No, if the entity sells bulk water on a regular basis. % Loss by Leakage: The percentage of total water used by the system lost through leakage. Most answers are approximations. Values given that were less than 1% are displayed as 1%.

Other Conditions: Any other condition that may affect the amount of water used by a system, including: Frost Flow (FF), System or Tank Overflow (SO), Line Flushing (LF), Fire System Usage (FD), Ponds (P), Leaks (LK), Other (OT)

Conservation Measures: Programs supported by the entity to reduce water consumption and increase public awareness about water conservation, including: Tiered Rates (TR), Subsidies for Efficiency (SE), Municipal Wasting Ordinance (WO)

28

Table A4 – Wind-Bighorn Basin Plan: 2009 Municipal Water Use Summary for Entities Primarily Relying on Groundwater (WWDC 2009)

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd)

Avg Day Use

(gpd)

Peak Day Use

(gpd)

% Loss by

Leakage # of

Wells

Well Depth Max (ft)

Wellhead protection

Conservation Measures

Surface sources

Other sources

Total Max

Capacity (gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treatment methods

Airport Bench Water and Sewer

District

WY DOT Rest Area,

County Airport 27 0 10,406 371 3 3,000 Yes None Greybull

Madison/Big Horn Wells 1,500 DC

Big Valley & Crossed Arrows

Improvement District NA 35 20 0 43 114 1,500 4,000 100 1 126 Yes None NA NA 15 5,000 None

Burlington NA 274 112 8 1,200 438 328,767 120,000 50 2 40 Yes

Tiered rates, Water

Ordinance NA NA 500,000 0 400,000 Disinfection/Chlorination

Cooper Subdivision

Mobile Home Park NA 100 50 0 0 0 0 1 100 No NA 0 0 None

Cowley

South End Water Users

District 800 0 0 0 1 2,400 Yes NA

Deaver Municipal Water and Shoshone Municipal Pipeline 950 0 200,000 DC

Dubois NA 960 604 8 221 729 211,992 700,000 23,000 4 60 Yes

Tiered billing, leak

detection, meter

replacement NA NA 1,000,000 Unknown 650,000 Chlorination, Ortho

Phosphate

East Thermopolis 274 75 1 0 0 0 3 No

Big Horn River and three wells

(consecutive system with Thermopolis NA DC, F, TP

Fairview NA 300 880 0 137 1 41,096 150 300 1 140 Yes

We have multiple plans in place, for brake downs of equipment, drought, and

power outages to

civil emergencies NA NA 300,000 250,000 0 NA

Gardens North Home

Owners Association NA 300 120 0 117 167 35,068 50,000 1,200 1 400 Yes No NA NA 178,000 Unknown 100,000 NA

29

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd)

Avg Day Use

(gpd)

Peak Day Use

(gpd)

% Loss by

Leakage # of

Wells

Well Depth Max (ft)

Wellhead protection

Conservation Measures

Surface sources

Other sources

Total Max

Capacity (gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treatment methods

Greybull NA Unknown Unknown 3 3,200 NA NA 1,728,000 0 1,750,000 Gas chlorination

Hudson 500 225 4 250 500 125,000 250,000 10 60 Yes TR, WO NA 300 10,000 200,000 DC

Hyattville Service and

Improvement District NA 50 65 0 55 84 2,740 4,200 0 2 2,000 Yes

Lawn watering from

town, irrigation ditch

off creek NA NA 315,000 25,000

Same tank can be used

for treated if

necessary Disinfection/Chlorination

Manderson None 54 0 0 2 860 No No None None 100 0 70,000 DC

Monroe Ave Mobile Home

Park 200 34 0 0 0 3 Yes None Nipper 1,2,3 100 None

North Riverton

WSD None 150 51 0 49 49 7,333 7,333 1 228 No No None None 33 500 0 None

Northend Water Users None 500 205 0 324 540 162,000 270,000 3 50 Yes No None None 750 200,000 0 None

Pavillion NA 160 131 6 12 188 1,918 30,000 Unknown 5 520 Yes No NA NA 22,000 308,700 225,000 Disinfection/Chlorination

Raintree Estates

Improvement and Service

Dist NA 75 29 0 0 60 Unknown 4,500 Unknown 1 325 No

Irrigation is provided by the LaClair

Irrigation Dist. NA NA 28,800 5,000 5,000 NA

Red Lane Domestic Water Inc

homes in Red Lane

Area 60 60 133 0 8,000 833 None Thermoplis

water 17,000

Riverton NA 9,728 4,048 21 2 504 19,178 4,902,912 Unknown 13 1,500 Yes

Tiered Rates, Voluntary

Conservation

Wind River Via LeClair Irrigation

Canal NA 102,600 0 5,300,000

Disinfection/Chlorination, Filtration, Treatment

Plant

Shoshoni NA 650 310 0 273 277 177,568 180,000 0 4 1,150 Yes

Metering water year

around NA NA 658,000 8,000,000 500,000 Disinfection/Chlorination

South Big Horn County

JPB

Basin, SBHC Water

District, Manderson 1,000 205 5 214 400 213,699 400,000 1,000 2 5,400 Yes No NA NA 1,100,000 0 100,000 Disinfection/Chlorination

Sun Ridge Estates

Homeowners Ass'n NA 300 100 0 1 250 192 75,000 5,000 1 440 Yes

Encourage to conserve NA NA 170,000 0 80,000 Disinfection/Chlorination

Ten Sleep NA 304 197 0 0 Unknown 1,500 2 1,032 Yes

Working on installing meters NA NA Unknown Unknown Unknown NA

30

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd)

Avg Day Use

(gpd)

Peak Day Use

(gpd)

% Loss by

Leakage # of

Wells

Well Depth Max (ft)

Wellhead protection

Conservation Measures

Surface sources

Other sources

Total Max

Capacity (gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treatment methods

Thermopolis

Lucerne Water

District, Red Lane, East

Thermopolis, South

Thermopolis Water

District, Hot Springs

Cemetery District 3,700 1,440 0 252 622 931,507 2,300,000 29,000 3 60 No NA

Big Horn River

1200 acre-feet @ Boysen

Reservoir 3,500,000 0 2,500,000 All

Warm Spring WD None 120 52 0 96 179 11,500 21,500 1 712 Yes No None Hart #1 245 0 200,000 DC

Worland

South Worland,

Washakie, Rural,

Hillcrest, and more 0 2 2,400 NA NA

31

Table A5 – Wind-Bighorn Basin Plan: 2009 Municipal Water Use Summary for Entities with Only Surface Water (WWDC 2009)

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd)

Avg Day Use

(gpd)

Peak Day Use

(gpd)

Loss by Leakage

(gal) # of

Wells

Well Depth Max (ft)

Wellhead protection

Conservation Measures

Surface sources

Other sources

Total Max Capacity

(gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treatment methods

Basin NA 1,200 630 15 148 333 178,082 400,000 10,000 0 NA No NA NA NA 750,000 100,000 750,000 Disinfection/Chlorination

Byron None 600 277 5 100 317 60,000 190,000 0 No WO None

Shoshone Municipal Pipeline 625 0 400,000 None

Cody

Rivers Bend Trailer Park, Juby's Trailer Park, Green Acres Mobile Home Park Unknown 1,600,000 Unknown 0 NA No

Yearly leak survey

performed

Shoshone Municipal Pipeline

Shoshone Municipal Pipeline 11,360,000 840,000 2,200,000 NA

Deaver None 210 70 16 155 438 32,529 92,000 0 No OT

Shoshone Muni

Pipeline None UNK 0 350,000

Frannie NA 200 88 0 151 25-40 30,137

5000-8000

gallons Unknown 0 NA No NA NA

Shoshone Municipal Pipeline 250,000 Unknown Unknown NA

Juby's Mobile

Home Park NA 350 1 1 0 0 0 0 0 NA None City of Cody NA NA 0 0 None

Kirby None 50 41 2 80 130 4,000 6,500 0 OT None Thermopolis 0 50,000 DC

Lander Red Fox

Park 7,000 2,912 28 286 857 2,000,000 6,000,000 0 Yes None

Middle Fork of Popo

Agie River NA 8 7,000,000 DC, F, TP

Lovell NA 2,500 940 15 89 0 222,000 0 unknown None

Buffalo Bill Reservoir, North Fork and South Fork of the Shoshone

River unknown 1,300,000

water is treated by Shoshone Municipal

Pipeline

Lucerne Water & Sewer District Kirby 375 119 0 7 2,740 Unknown 2,500 0 NA No NA

Consecutive System

from Thermopolis NA 27,500 0 200,000 NA

Meeteetse NA 370 370 22 148 405 54,795 150,000 2,500 0 NA Yes Self Admin

Lower Sunshine reservoir NA 547,000 Unknown 700,000

Microfiltration ,Chlorination

32

Name of Entity

Other Entities Served

Total Pop.

Served

# Taps

in Entity

# Taps Outside Entity

Avg Day Use

(gpcpd)

Peak Day Use

(gpcpd)

Avg Day Use

(gpd)

Peak Day Use

(gpd)

Loss by Leakage

(gal) # of

Wells

Well Depth Max (ft)

Wellhead protection

Conservation Measures

Surface sources

Other sources

Total Max Capacity

(gpm)

Max Storage

Raw (gal)

Max Storage Treated

(gal) Treatment methods

Northwest Rural Water

District NA 5,000 2,425 0 84 340 421,918 1,700,000 400 0 NA Yes

Conservation rate scale; first 24,000 gallons per month @

$1.45, next 8,000 gal at

$2.90

Shoshone Municipal Pipeline

from Buffalo Bill Res. NA 600,000 0 1,015,000

Conventional Water Treatment Plant

Powell NA 5,300 2,800 0 160 0 849,036 0 None

Buffalo Bill Res. (water purchased

from Shoshone

Muni. Pipeline) NA 1,900,000 1,900,000 None

Shell Valley West Water

& Sewer District 50 0 0 0 0 0 600 0

Yes; Greybull None

Greybull - Consecutive

System NA NA None

Shell Water Users Inc. NA 50 201 0 0 0 0 0

Yes; Greybull None

Greybull - Consecutive

System NA NA 0 0 None

Shoshone Municipal Pipeline

City of Cody, City of Powell, Town of Byron,

Town of Lovell,

Town of Deaver, Town of

Frannie & Northwest

Rural Water District 24,600 13 10,145 0 222 3,172 5,460,000 0 0 NA

Our rates are high enough

to be considered

Conservation Rates

Buffalo Bill Reservoir

The Shoshone

River below Buffalo Bill Reservoir is used as an emergency

source 16,500,000

Whatever is held in

Buffalo Bill Reservoir.

This is controlled

by the Bureau of

Reclamation

5,000,000 for SMP.

Each entity we serve has their own storage. We do own

storage for Byron (400,000),

Deaver (350,000)

and Frannie

(250,000)

Conventional Water Treatment including

corrosion control

South Thermopolis None 112 112 0 0 0 0 0 No None

Thermopolis 38 271,709

South Worland

Water Users NA 167 0 Unknown Unknown 0 NA No NA NA City of

Worland Unknown Unknown Unknown NA

Washakie Rural

Improvement & Service

District NA Unknown Unknown 0 NA NA

Big Horn Regional

Joint Powers Board Unknown Unknown 35,000 Disinfection/Chlorination