Water Quality in CHOWCHILLA, CA (93610)

EPA violation data for public water systems serving ZIP code 93610.

20

Total Violations

14

Health-Based

6

Monitoring / Reporting

20

Resolved

What does this mean?

20 of 20 violations have been resolved. 14 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 6 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 23 Population served: 20,188

Violations Detail (20 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
ArsenicHealth-BasedN/A0.022Jun 30, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.023Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.02Dec 31, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.022Sep 30, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicMonitoringN/AN/ASep 30, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicMonitoringN/AN/ASep 30, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.02Jun 30, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.019Mar 31, 2024ResolvedSkin damage; circulatory system problems; increased risk of cancer
NitrateMonitoringN/AN/ADec 31, 2023ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
NitrateMonitoringN/AN/ADec 31, 2023ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath

Lead & Copper Levels

Violation Timeline

2025(2)

Arsenic

02

Jun 30Resolved

Arsenic

02

Mar 31Resolved

2024(6)

Arsenic

02

Dec 31Resolved

Arsenic

02

Sep 30Resolved

Arsenic

03

Sep 30Resolved

Arsenic

03

Sep 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Mar 31Resolved

How Does This Compare?

CHOWCHILLA (93610) has 20 recorded violations, including 14 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Nearby ZIP Codes

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