Water Quality: Stilwell, OK

3 water systems • 6,951 people served

Multiple Health Violations
48
Total Violations
6
Health-Based Violations
3
Water Systems
6,951
Population Served

Water Quality Summary

Stilwell is served by 3 public water systems with a combined service population of 6,951 people, and has 48 EPA Safe Drinking Water Act violations on record. Critically, 6 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Stilwell's violation count is 82% below the national average for Oklahoma. Contaminants associated with violations include E. coli, Nitrate, Stage 2 DBP.

Contaminants Found

E. coli

Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.

Common source: Fecal contamination from humans or animals entering the water supply

EPA limit: Zero (no E. coli permitted in drinking water)

Nitrate

Causes methemoglobinemia (blue baby syndrome) in infants, reducing the blood's ability to carry oxygen.

Common source: Fertilizer runoff, septic systems, animal feedlots, natural deposits

EPA limit: 10 mg/L (as nitrogen)

Stage 2 DBP

Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.

Common source: Chlorine disinfection reacting with natural organic matter in source water

EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L

Water Systems Serving Stilwell

System Name PWSID Source Population Violations
STILWELL OK1020205 Surface Water 3,276 16
ADAIR CO RWD #1 (CHERRY TREE) OK3000104 Surface Water 2,000 18
ADAIR CO RWD #2 OK3000105 Surface Water 1,675 14

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 Oklahoma

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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.

Verify at epa.govSearch ECHO for OK