Water Quality: Sheridan, WY
3 water systems • 23,785 people served
Multiple Health ViolationsWater Quality Summary
Sheridan is served by 3 public water systems with a combined service population of 23,785 people, and has 35 EPA Safe Drinking Water Act violations on record. Critically, 5 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Sheridan's violation count is 73% below the national average for Wyoming. Contaminants associated with violations include Disinfection Byproducts, Fecal Coliform, Total Haloacetic Acids (HAA5).
Contaminants Found
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Indicates direct fecal contamination; associated with diarrhea, cramps, nausea, and potential severe illness.
Common source: Human and animal fecal waste
EPA limit: Zero tolerance (any positive triggers violations)
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Water Systems Serving Sheridan
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SHERIDAN, CITY OF | WY5600052 | Surface Water | 22,700 | 2 |
| VETERANS ADMINISTRATION MEDICAL CENTER | WY5680001 | Surface Water | 685 | 33 |
| DOWNER NEIGHBORHOOD I&S DISTRICT | WY5601537 | Surface Water | 400 | 0 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Wyoming
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.