Technical Memorandum

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 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.

Table 1. Community Public Water Systems using Groundwater Population Number of Average Use Total Storage Capacity Water System Name Served 1 Wells 1,7 (gpd) 1 (gallons) 1, 2 Airport Bench Water & Sewer Dist.4 26 3 10,406 ND B&K Mobile Home Park 4 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 Greybull 3 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 Acres 4 165 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 JPB3 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 Park 4 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 Commission 3 ND 2 1,500,000 ND Total 6 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

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

!( !(!( ut212 UV295 (! Deaver Cowley UV37 Bighorn !( Lake UV294 !( Byron 296 Powell Lovell tALT UV !( u14 (! UV295 UV120 ut310 ALT ut14 UV789 32 UV !( Park Buffalo Bill !(!( !((! Reservoir !( (!ut14 ut14 (! (! ut14 Cody ut16 ut20 Burlington Yellowstone ut16 ut20 !( Greybull Lake ((!!!( Big Horn UV30 Basin UV120 ((!!!(!( Manderson !( UV31 Teton (! (!(!!((! Meeteetse UV433 Ten Sleep !( ut16 (! UV120 UV431 Worland

ut20 UV434 UV789 Washakie !(!( Hot Springs UV172 !( !( !((! Thermopolis Dubois !(!( (!((!!(!( ut26 ut287 Boysen Reservoir

Bull !(!( (!((!!(! Natrona Lake ut20 Shoshoni ut26

ut26 Fort 132 UV !(!( Washakie !(!( !(!(! !(!!((( Riverton Ethete Arapahoe UV136

ut287 !(!(!( UV789 (! UV135 Fremont !( (!!( !( !(!!((!( (!!( Lander

Legend Municipal Wells Yield (gpm) Cities !( 0 - 130 Rivers (! 131 - 325 Wyoming Water Development Commission Highways !( 326 - 850 Wind River Reservation 851 - 2,000 ± !( 010 20 40 60 80 Basin Boundary County Boundary (! 2,001 - 6,000 Miles

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

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.

Table 3. Community Public Water Systems Using Surface Water 2009 2009 Total 2009 Average Storage Water System Name Population Water Source 1 1 Use Capacity Served 1 1,2 (gpd) (gallons)

Byron, Town of 600 Shoshone Municipal Pipeline 60,000 400,000 Buffalo Bill Reservoir (water purchased from Shoshone Municipal Pipeline), South Fork Cody, City of 3 8,832 Shoshone River via Cody Canal 1,440,000 3,040,000 Deaver Municipal Water System 210 Shoshone Municipal Pipeline 32,529 350,000 Supplemental supply from the Town of East Thermopolis, Town of 6 274 Thermopolis See note See note Frannie, Town of 200 Shoshone Municipal Pipeline 30,137 ND Green Acres Village 4 375 Shoshone Municipal Pipeline ND ND Juby's MHP 4 350 City of Cody ND ND Kirby, Town of 6 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 Buffalo Bill Res., North Fork & South Fork Lovell, Town of 6 2,500 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 Buffalo Bill Reservoir (water purchased from Powell, City of 5,300 Shoshone Municipal Pipeline) 849,036 1,900,000 Red Lane Domestic Water, Inc. 60 Thermopolis Water 8,000 17,000 Redd Fox Park HOA 4 50 Unknown ND ND Rivers Bend Trailer Court 4 96 Unknown ND ND Riverton, Town of 7 See note Wind River 880,991 See note Shoshone Municipal Pipeline 5, 24,600 Buffalo Bill Reservoir 3,172 5,000,000 Supplemental supply from the Town of South Thermopolis WSD 6 112 Thermopolis See note See note Thermopolis 8 3,700 Big Horn River 884,932 2,500,000 Yellowstone NP Mammoth Hot Spring 4 600 Unknown ND ND Yellowstone NP Old Faithful 4 115 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

Table 4. Average Monthly Water Diversions for Community Public Water Providers Serving at Least 1,000 People Surface Water Use and Groundwater Monthly Groundwater Use (mgd) Use (mgd) Surface Water Use (mgd) Use South Pattern (% Big NW of Total Horn Rural Annual County Ther- Water Month Diversion) Basin Dubois Greybull JPB Worland Riverton mopolis Cody Lander Lovell 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

Table 5. Monthly Consumptive Use for Municipal Water Providers Serving at Least 1,000 People Surface Water and Groundwater Consumptive Use Groundwater Use Surface Water Consumptive Use (acre-feet) (acre-feet) (acre-feet) South Big Horn NW Rural County Ther- Water Month Basin Dubois Greybull JPB Worland Riverton mopolis Cody Lander Lovell 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 Surface Water Use Return Flows from Groundwater Users and Groundwater Use Return Flows from Surface Water Users (acre-feet) (acre-feet) (acre-feet) South Big Horn NW Rural County Ther- Water Month Basin Dubois Greybull JPB Worland Riverton mopolis Cody Lander Lovell 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

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 Minimum Maximum Estimated Municipality Well Depth (ft) Well Depth (ft) 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.

Table 8. Member Entities and Associated Design Flows for Big Horn Regional Northern Supply Pipeline Primary Supply Secondary Emergency Entity (mgd) Supply (mgd) 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.

Frannie

UV37 Bighorn Cowley Lake Deaver Shoshone River

Lovell

ALT Powell Byron ut14 Garland

Ralston Shoshone River UV295 UV120 ut310 C o tt UV789 o C n w re e o k o d B igh UV32 R or iv n er Cody utALT 14 Park Dry Creek Shell Creek ut14 14 C+ ut 16 Buffalo Bill tuut20 Reservoir Greybull l Burlington ul yb re r G ve Big Horn UV30 Ri

UV120 Basin tu16 ut20 City of Worland l ul 789 Manderson yb UV Well #3 re r G ive R Nowood (! River UV31 (! Hyattville

Meeteetse Husky-Worland Washakie Well #1 West Ten River 120 UV WashakieFift een M C ile Sunshine reek UV433 Reservoir Hot Springs ut16

UV431 Airport Gooseberry Creek Road Mc Nutt South Worland Flat South Flat Legend

C+ Shoshone Municipal Water Shoshone Pipline Wyoming Water Development Commission BigHorn Pipeline Cities and Towns ± Basin Boundary 04 8 16 24 32

County Boundary Miles

Figure 2. Regional Water Systems in Wind Bighorn Basin

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.

Table 10. Domestic System Population Estimates by County in the Wind-Bighorn Basin Population Estimated Estimated Estimated Total Population Served by Population Domestic Domestic County (US Census Community Serviced by Groundwater Groundwater Bureau 2009) Water Systems Domestic Use Use (USEPA 2009) System (1) Minimum (mgd) 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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Legend

!( Domestic Wells Wind River Reservation Wyoming Water Development Commission Basin Boundary ± County Boundary 010 20 40 60 80 Miles

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

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 Water Use Water Use Type of Water System (mgd) (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

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.

Appendix A Municipal Water Use Data

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

Non-Transient Non-Community Water Community Water System System Transient Non-Community Water System Total Number of Water Service Ground- Surface Ground- Surface Ground- Surface Ground- County Water System System ID Connections water Water Total water Water Total water Water Total 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

Population Served

Non-Transient Non-Community Water Community Water System System Transient Non-Community Water System Total Number of Water Service Ground- Surface Ground- Surface Ground- Surface Ground- County Water System System ID Connections water Water Total water Water Total water Water Total 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

Population Served

Non-Transient Non-Community Water Community Water System System Transient Non-Community Water System Total Number of Water Service Ground- Surface Ground- Surface Ground- Surface Ground- County Water System System ID Connections water Water Total water Water Total water Water Total 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

Population Served

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 CWS Community Water System: A public water system that supplies water to the same population year-round. Non-Transient Non-Community Water System: A public water system that regularly supplies water to at least 25 PWSType of the same people at least six months per year, but not year-round. Some examples are schools, factories, office buildings, and hospitals which NTNCWS have their own water systems. Transient Non-Community Water System: A public water system that provides water in a place such as a gas TNCWS station or campground where people do not remain for long periods of time and is open at least 60 days/year. Surface Water includes the following primary sources of water: SW, SWP, GU, GUP Gw/sw Groundwater includes the following primary sources of water: GW and GWP

Table A2 – Wind-Bighorn Basin Plan: 2007 Municipal Water Use Summary for Entities Primarily Relying on Groundwater (WWDC 2007) Total Total # Avg Peak Sell % Loss Conserv Max Max Max Other Pop. Taps # Taps Day Day Bulk by Other Well Well Wellhead ation Type of Capa- Storage Storage Name of Entities Serve in Outside Use Use Avg Day Peak Day Wate Leak- Condi- # of Depth Depth Protec- Mea- Diver- Surface Other city Raw Treated Treat- Percent Entity Served d Entity Entity (gpcpd) (gpcpd) Use (gpd) Use (gpd) r age tions Wells Min (ft) Max (ft) tion sures sion Source Source (gpm) (gal) (gal) ment Metered

Airport WYDOT 27 0 10,406 SO, LK 3 3,000 Yes NONE n/a Greybull Madison 1,500 DC 100 Bench Rest /Big Water & Area, Horn Sewer County Wells District Airport 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 None 600 24,000 1,000,000 DC 99 Horn Co. JPB Big Valley & 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 Crossed Arrows Improveme nt Dist. Burlington N/A 250 115 0 320 50 120,000 160,000 No 9 FD 2 35 45 Yes None n/a None None Unknow 0 150,000 DC 100 n Cooper Sub N/A 100 50 0 1 80 100 No n/a None None 0 0 None 0 Mobile Home Park Cowley South 800 1 2,400 2,400 Yes n/a None Deaver 950 0 200,000 DC End Municip Water & al Water Sewer & District Shosho ne Municip al Pipeline East 274 75 1 3 No Surface Big N/A DC, F, 95 Thermopolis Direct, Horn TP , Town of Alluvial River Wells (consec utive system with Thermo polis) Farview 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 WSD Frannie, N/A 207 N/A 99 Town of Gardens 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 North Homeowner s Association Greybull N/A 3,000 1,000,000 1,400,000 Yes 4 SO, LF, 3 3,000 3,300 Yes TR, Lawn n/a None None 1,300 0 1,750,000 DC 100 FD water conservat ion Hudson None 500 225 4 250 500 125,000 250,000 No FF, LF, 10 40 60 Yes TR, WO Alluvial None None 300 10,000 200,000 DC 97 FD Wells Hyattville 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 Water Company Lucerne Kirby 117 117 0 27,000 33,000 Yes 1 FD N/A None Big Thermo 200 200,000 Thermo 100 Water & Horn polis polis Sewer Dist. River Treatme Treatme nt Plant nt Plant from Big Horn River Manderson None 54 0 No NONE 2 860 860 No NONE n/a None None 100 0 70,000 DC 95 Monroe None 200 34 0 900 3 Yes NONE Alluvial Nipper None 100 None 0 Avenue Wells 1,2,3 Mobile Home Park

Total Total # Avg Peak Sell % Loss Conserv Max Max Max Other Pop. Taps # Taps Day Day Bulk by Other Well Well Wellhead ation Type of Capa- Storage Storage Name of Entities Serve in Outside Use Use Avg Day Peak Day Wate Leak- Condi- # of Depth Depth Protec- Mea- Diver- Surface Other city Raw Treated Treat- Percent Entity Served d Entity Entity (gpcpd) (gpcpd) Use (gpd) Use (gpd) r age tions Wells Min (ft) Max (ft) tion sures sion Source Source (gpm) (gal) (gal) ment Metered North End None 500 205 0 540 1,350 162,000 270,000 No 1 SO, LF, 3 50 50 Yes NONE n/a None None 750 200,000 0 None 100 Water OT Users North 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 Riverton WSD 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 None 72 29 0 76 110 5,500 6,200 2 320 460 Yes OT n/a None None 25 5,000 None 0 Improveme nt and Service District Riverton, N/A 4,403 0 2,600,000 3,500,000 Yes 7 SO, LF, 13 600 1,823 Yes TR Surface Wind N/A 5,400 5,350,000 DC, F, 90 City of FD Direct River TP Shell Valley None 50 0 0 4 8 0 Yes; NONE n/a Consec N/A N/A None 100 West Water Greybull utive & Sewer System Shell Water None 50 201 0 0 0 0 N/A 0 Yes; NONE Greybull N/A N/A 0 0 None 100 Users, Inc. Greybull Consec utive System Shoshoni None 550 400 0 408 814 220,643 425,498 2 FF, LF, 4 560 1,051 Yes OT n/a None None 880 0 500,000 DC 98 FD, LK South Big South 1,700 235 352 400,000 600,000 Yes 5 LF 2 5,200 5,300 Yes NONE None 800 100,000 DC 90 Horn Bighorn County Co Water Joint District, Powers Basin & Board Manders on South None 432 180 0 0 Yes NONE n/a None Consec UNK None 100 Worland utive Water system Users, Inc. from Worland Sunridge None 250 143 0 LF, FD 1 460 Yes NONE n/a None None 120,000 0 120,000 DC 0 Estates 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 Several UNK 1,515 388 530 1,060 1,000,000 3,000,000 15 LF, FD, 4 30 30 Yes OT SD Bighorn None 4,000 500,000 2,750,000 DC, F, 100 , Town of LK River TP, OT Town of Painted 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 Dubois Hills Subdivisi on Warm None 120 52 0 240 450 11,500 21,500 No 3 LF, FD, 1 712 712 Yes NONE n/a None Hart #1 245 0 200,000 DC 0 Springs LK, FF Water District Washakie N/A 800 400 0 200 300 80,000 90,000 Yes LF 0 TR, WO N/A Water 80,000 80,000 DC 100 Rural Water purchas System ed from Big Horn Regiona l JPB and City of Worland Worland South Yes 2 2,400 2,400 No n/a None None 99 Utilities Worland, Commis- Washaki sion e Rural, Hillcrest, and more 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.

Total Total # Avg Peak Sell % Loss Conserv Max Max Max Other Pop. Taps # Taps Day Day Bulk by Other Well Well Wellhead ation Type of Capa- Storage Storage Name of Entities Serve in Outside Use Use Avg Day Peak Day Wate Leak- Condi- # of Depth Depth Protec- Mea- Diver- Surface Other city Raw Treated Treat- Percent Entity Served d Entity Entity (gpcpd) (gpcpd) Use (gpd) Use (gpd) r age tions Wells Min (ft) Max (ft) tion sures sion Source Source (gpm) (gal) (gal) ment 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. 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 Treatment: (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%. 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 Other Conditions: (LK), Other (OT) Conservation 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 Measures: Wasting Ordinance (WO)

Table A3 – Wind-Bighorn Basin Plan: 2007 Municipal Water Use Summary for Entities with Only Surface Water (WWDC 2007) % Total # # Taps Avg Peak Loss Well Well Well- Conser Total Max Max Pop. Taps Out- Day Day Sell by Other # of Depth Depth head vation Type of Max Storage Storage Name of Other Entities Ser- in En- side Use Use Avg Day Peak Day Bulk Leak Condi Well Min Max Protec- Measur Diver- Surface Other Capacity Raw Treated Treat- Percent Entity Served ved tity Entity (gpcpd) (gpcpd) Use (gpd) Use (gpd) Water -age -tions s (ft) (ft) tion es sion Source Source (gpm) (gal) (gal) ment Metered

Byron, Town None 600 277 5 100 316 60,000 190,000 No 9 LF, 0 No WO n/a None Shoshone 625 0 400,000 None 100 of FD, LK Municipal Pipeline Cody, City of Juby's Trailer 8,832 4,250 0 31 49 1,440,000 2,358,000 Yes 19 FF, LF 0 TR Inlet in Buffalo Bill N/A 8,160 83,300 2,200,000 DC, F, 99 Ct., Green Reservoi Reservoir Floccul Acres Trailer r (water ation Ct. purchased from Shoshone Municipal Pipeline) Deaver None 210 70 16 145 409 32,529 92,000 Yes 17 LF, 0 No OT SD Shoshone None Unknown 0 350,000 100 Municipal FD, Muni Water LK, P Pipeline System Juby's Mobile N/A 350 1 1 Yes NA 0 NA None Surface City of N/A N/A 0 0 None 100 Home Park Direct Cody Kirby, Town None 50 41 2 133 216 4,000 6,500 No UNK LF, FD 0 OT n/a None Thermopoli 0 50,000 DC 99 of s Treatment Plant from Big Horn River Lander, City Red Fox Park 7,000 2,912 28 291 873 2,000,000 6,000,000 Yes 5 LF, FD 0 Yes None Surface Middle N/A 8 7,000,000 DC, F, 95 of Direct Fork of TP Popo Agie River Lovell, Town N/A 2,500 940 15 88 150 222,000 Yes LF, FD 0 UNK NONE Buffalo Bill Unknown 1,300,000 treated 100 of Res., by North Fork Shosho and South ne Fork Municip Shoshone al River Pipeline Meeteetse, None 415 225 10 136 1,136 30,000 180,000 No UNK FF. 0 Yes None Surface Lower None 350 0 568,000 OT 99 Town of LF, FD Direct Sunshine Reservoir Northwest None 4,812 1,925 0 65 100 312,812 481,250 No 6 LF, FD 0 No TR Surface Buffalo Bill None 0 865,000 TP 100 Rural Water Direct Reservoir District Powell, City N/A 5,300 2,800 0 158 849,036 Yes 20 0 None Buffalo Bill N/A 1,900.00 1,900,000 None 98 of Reservoir 0 (water purchased from Shoshone Municipal Pipeline) Red Lane Homes in Red 60 60 8,000 Yes None Thermopol 17,000 100 Domestic Lane Area is Water Water, Inc. Shoshone City of Cody, Yes 1 Weath 0 High Dam Buffalo Bill Shoshone 15,278 316,890, 1,183,500 DC, F, 100 Municipal City of Powell, er Rates Reservoir River 097 TP, Pipeline Lovell, Byron, below corrosio Deaver, Buffalo Bill n Frannie, & Reservoir control Northwest for Rural Water emergenci District es South None 112 112 0 444 543 N/A SO, 0 None N/A None Thermopoli 38 271,709 100 Thermopolis LF, FD s WSD 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 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)

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

# Avg Peak Well Total Max Other Total Taps # Taps Day Day Avg Day Peak Day % Loss Depth Max Max Storage Name of Entities Pop. in Outside Use Use Use Use by # of Max Wellhead Conservation Surface Other Capacity Storage Treated Entity Served Served Entity Entity (gpcpd) (gpcpd) (gpd) (gpd) Leakage Wells (ft) protection Measures sources sources (gpm) Raw (gal) (gal) Treatment methods

Airport WY DOT Bench Water Rest Area, and Sewer County Madison/Big District Airport 27 0 10,406 371 3 3,000 Yes None Greybull 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

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

Deaver Municipal Water and South End Shoshone Water Users Municipal Cowley District 800 0 0 0 1 2,400 Yes NA Pipeline 950 0 200,000 DC

Tiered billing, leak detection, meter Chlorination, Ortho Dubois NA 960 604 8 221 729 211,992 700,000 23,000 4 60 Yes replacement NA NA 1,000,000 Unknown 650,000 Phosphate

Big Horn River and three wells (consecutive East system with Thermopolis 274 75 1 0 0 0 3 No Thermopolis NA DC, F, TP

We have multiple plans in place, for brake downs of equipment, drought, and power outages to civil Fairview NA 300 880 0 137 1 41,096 150 300 1 140 Yes 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

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

Same Lawn tank can Hyattville watering from be used Service and town, for treated Improvement irrigation ditch if District NA 50 65 0 55 84 2,740 4,200 0 2 2,000 Yes off creek NA NA 315,000 25,000 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 Irrigation is Improvement provided by and Service the LaClair Dist NA 75 29 0 0 60 Unknown 4,500 Unknown 1 325 No Irrigation Dist. NA NA 28,800 5,000 5,000 NA Red Lane homes in Domestic Red Lane Thermoplis Water Inc Area 60 60 133 0 8,000 833 None water 17,000

Wind River Tiered Rates, Via LeClair Disinfection/Chlorination, Voluntary Irrigation Filtration, Treatment Riverton NA 9,728 4,048 21 2 504 19,178 4,902,912 Unknown 13 1,500 Yes Conservation Canal NA 102,600 0 5,300,000 Plant Metering water year Shoshoni NA 650 310 0 273 277 177,568 180,000 0 4 1,150 Yes around NA NA 658,000 8,000,000 500,000 Disinfection/Chlorination

Basin, South Big SBHC Water Horn County District, JPB 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 Encourage to Ass'n NA 300 100 0 1 250 192 75,000 5,000 1 440 Yes conserve NA NA 170,000 0 80,000 Disinfection/Chlorination Working on installing Ten Sleep NA 304 197 0 0 Unknown 1,500 2 1,032 Yes meters NA NA Unknown Unknown Unknown NA

Lucerne Water District, Red Lane, East Thermopolis, South Thermopolis Water District, Hot 1200 acre- Springs feet @ Cemetery Big Horn Boysen Thermopolis District 3,700 1,440 0 252 622 931,507 2,300,000 29,000 3 60 No NA River 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

South Worland, Washakie, Rural, Hillcrest, and Worland more 0 2 2,400 NA NA

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

# Avg Peak Well Max Other Total Taps # Taps Day Day Avg Day Peak Day Loss by Depth Total Max Max Storage Name of Entities Pop. in Outside Use Use Use Use Leakage # of Max Wellhead Conservation Surface Other Capacity Storage Treated Entity Served Served Entity Entity (gpcpd) (gpcpd) (gpd) (gpd) (gal) Wells (ft) protection Measures sources sources (gpm) Raw (gal) (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

Shoshone Municipal Byron None 600 277 5 100 317 60,000 190,000 0 No WO None Pipeline 625 0 400,000 None Rivers Bend Trailer Park, Juby's Trailer Park, Green Acres Mobile Yearly leak Shoshone Shoshone Home survey Municipal Municipal Cody Park Unknown 1,600,000 Unknown 0 NA No performed Pipeline Pipeline 11,360,000 840,000 2,200,000 NA

Shoshone Muni Deaver None 210 70 16 155 438 32,529 92,000 0 No OT Pipeline None UNK 0 350,000

5000- Shoshone 8000 Municipal Frannie NA 200 88 0 151 25-40 30,137 gallons Unknown 0 NA No NA NA 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

Middle Fork Red Fox of Popo Lander Park 7,000 2,912 28 286 857 2,000,000 6,000,000 0 Yes None Agie River NA 8 7,000,000 DC, F, TP

Buffalo Bill Reservoir, North Fork and South Fork of the water is treated by Shoshone Shoshone Municipal Lovell NA 2,500 940 15 89 0 222,000 0 unknown None River unknown 1,300,000 Pipeline

Lucerne Consecutive Water & System Sewer from District Kirby 375 119 0 7 2,740 Unknown 2,500 0 NA No NA Thermopolis NA 27,500 0 200,000 NA

Lower Sunshine Microfiltration Meeteetse NA 370 370 22 148 405 54,795 150,000 2,500 0 NA Yes Self Admin reservoir NA 547,000 Unknown 700,000 ,Chlorination

Conservation rate scale; first 24,000 gallons per Shoshone month @ Municipal Northwest $1.45, next Pipeline Rural Water 8,000 gal at from Buffalo Conventional Water District NA 5,000 2,425 0 84 340 421,918 1,700,000 400 0 NA Yes $2.90 Bill Res. NA 600,000 0 1,015,000 Treatment Plant

Buffalo Bill Res. (water purchased from Shoshone Muni. Powell NA 5,300 2,800 0 160 0 849,036 0 None Pipeline) NA 1,900,000 1,900,000 None

Shell Valley West Water Greybull - & Sewer Yes; Consecutive District 50 0 0 0 0 0 600 0 Greybull None System NA NA None

Greybull - Shell Water Yes; Consecutive Users Inc. NA 50 201 0 0 0 0 0 Greybull None System NA NA 0 0 None

5,000,000 City of for SMP. Cody, Each City of entity we Powell, serve has Town of their own Byron, storage. Town of We do Lovell, Whatever is own Town of The held in storage Deaver, Shoshone Buffalo Bill for Byron Town of Our rates are River below Reservoir. (400,000), Frannie & high enough Buffalo Bill This is Deaver Northwest to be Reservoir is controlled (350,000) Shoshone Rural considered used as an by the and Conventional Water Municipal Water Conservation Buffalo Bill emergency Bureau of Frannie Treatment including Pipeline District 24,600 13 10,145 0 222 3,172 5,460,000 0 0 NA Rates Reservoir source 16,500,000 Reclamation (250,000) corrosion control

South Thermopolis None 112 112 0 0 0 0 0 No None Thermopolis 38 271,709

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

Washakie Big Horn Rural Regional Improvement Joint & Service Powers District NA Unknown Unknown 0 NA NA Board Unknown Unknown 35,000 Disinfection/Chlorination