County · Wyoming
Sweetwater County, Wyoming: drinking water records
This overview covers 11 ZIP codes and 21 community water systems in Sweetwater County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Rock Springs, City of WY5601182 | 24,000 | 120 | 0 | 0 | 3 ppb |
| Green River, City of WY5601181 | 10,500 | 120 | 0 | 0 | 2 ppb |
| Little America Hotels & Resorts, INC- Wy WY5600097 | 2,004 | 0 | 0 | 18 | 4 ppb |
| Farson Eden School WY5600113 | 530 | 0 | 0 | 1 | 1 ppb |
| Wamsutter, Town of WY5600105 | 500 | 0 | 0 | 1 | 2 ppb |
| Superior, Town of WY5600092 | 336 | 0 | 0 | 2 | 3 ppb |
| Granger, Town of WY5600020 | 139 | 0 | 0 | 4 | 2 ppb |
| Point of Rocks Mercantile WY5600093 | 78 | 0 | 0 | 1 | 0 ppb |
| Bairoil, Town of WY5600003 | 71 | 0 | 0 | 1 | 0 ppb |
| Rock Springs/Green River Jpb WY5600050 | 25 | 0 | 0 | 2 | 0 ppb |
| White Mountain W&s District WY5601391 | 3,000 | 0 | 0 | 0 | 2 ppb |
| Pioneer Mobile Home Park WY5601173 | 1,000 | 0 | 0 | 0 | 3 ppb |
| Clearview I&s District WY5600091 | 930 | 0 | 0 | 0 | 3 ppb |
| Jamestown-Rio Vista W&s District WY5600810 | 560 | 0 | 0 | 0 | 0 ppb |
| Lewis Mobile Home Park WY5601175 | 370 | 0 | 0 | 0 | 2 ppb |
| Horizon MHP WY5600088 | 330 | 0 | 0 | 0 | 0 ppb |
| Ten Mile Water and Sewer District WY5601369 | 305 | 0 | 0 | 0 | 14 ppb |
| White Mountain Mobile Home Park WY5601206 | 270 | 0 | 0 | 0 | 0 ppb |
| Desert Trails MHP WY5601608 | 112 | 0 | 0 | 0 | 2 ppb |
| Mobile Corrals MHP WY5601203 | 110 | 0 | 0 | 0 | 2 ppb |
| Farson Mobile Home Court WY5600112 | 20 | 0 | 0 | 0 | 2 ppb |
ZIP reports in Sweetwater County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 82938.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.