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Wyoming Water Quality
95
Utilities in database
0.5M
Residents served
45%
On private wells
2
Key contaminants tracked
Drinking Water in Wyoming
Wyoming has 95 community water systems serving approximately 0.5 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead. 45% of Wyoming residents rely on private wells. DEQ holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Wyoming
76–95 of 95Town of Dayton
WY5600202 · 824 served
Town of Cowley
WY5600206 · 800 served
Bedford Water & Sewer District
WY5600006 · 750 served
Heritage Village Subdivision
WY5600249 · 750 served
Foothills Mobile Home Park
WY5601239 · 735 served
Greater Smoot W&s District
WY5601397 · 720 served
Skyline Village Mobile Home Pk
WY5601176 · 700 served
Eastview Manufactured Home Community
WY5601353 · 688 served
Veterans Administration Medical Center
WY5680001 · 685 served
West Winds
WY5601619 · 663 served
Big Country Estates
WY5601271 · 615 served
Salt Creek Water District
WY5600133 · 600 served
Town of Byron
WY5600008 · 593 served
High Meadow Ranch
WY5601569 · 580 served
Jamestown-rio Vista W&s District
WY5600810 · 560 served
Town of Cokeville
WY5600015 · 535 served
Farson Eden School
WY5600113 · 530 served
Town of Shoshoni
WY5600053 · 515 served
Town of Wamsutter
WY5600105 · 500 served
Crestview Estates Subdivision
WY5600853 · 500 served
Key Contaminant Concerns in Wyoming
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
Wyoming Water FAQs
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Data source: Utility data from EPA SDWIS. 95 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-24