Water Quality: Calvin, OK

1 water system • 300 people served

Multiple Health Violations
54
Total Violations
5
Health-Based Violations
1
Water Systems
300
Population Served

Water Quality Summary

Calvin is served by 1 public water system with a combined service population of 300 people, and has 54 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. Calvin's violation count is 79% below the national average for Oklahoma. Contaminants associated with violations include Nitrate, cis-1,2-Dichloroethylene.

Contaminants Found

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)

cis-1,2-Dichloroethylene

Water Systems Serving Calvin

System Name PWSID Source Population Violations
CALVIN OK2003201 Groundwater 300 54

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.

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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