Water Quality in STOCKTON, CA (95219)

EPA violation data for public water systems serving ZIP code 95219.

254

Total Violations

5

Health-Based

249

Monitoring / Reporting

248

Resolved

What does this mean?

248 of 254 violations have been resolved. 5 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 249 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: 29 Population served: 7,719

Violations Detail (254 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
LEAD AND COPPER RULE REVISIONSMonitoringN/AN/AJul 1, 2025ActiveN/A
LEAD AND COPPER RULE REVISIONSMonitoringN/AN/AJul 1, 2025ActiveN/A
Public NoticeMonitoringN/AN/AMay 22, 2025ResolvedN/A
Lead and Copper RuleHealth-BasedN/AN/AMar 31, 2025ResolvedN/A
Lead and Copper RuleHealth-BasedN/AN/AMar 31, 2025ResolvedN/A
LEAD AND COPPER RULE REVISIONSMonitoringN/AN/AOct 16, 2024ActiveN/A
LEAD AND COPPER RULE REVISIONSHealth-BasedN/AN/AOct 16, 2024ActiveN/A
Stage 2 Disinfectants and Disinfection Byproducts RuleMonitoringN/AN/AOct 10, 2024ResolvedN/A
Stage 2 Disinfectants and Disinfection Byproducts RuleMonitoringN/AN/AOct 10, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AOct 10, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(5)

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

LEAD AND COPPER RULE REVISIONS

4H

Jul 1Active

Public Notice

75

May 22Resolved

Lead and Copper Rule

58

Mar 31Resolved

Lead and Copper Rule

58

Mar 31Resolved

2024(35)

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

Stage 2 Disinfectants and Disinfection Byproducts Rule

35

Oct 10Resolved

Stage 2 Disinfectants and Disinfection Byproducts Rule

35

Oct 10Resolved

Revised Total Coliform Rule

5A

Oct 10Resolved

Revised Total Coliform Rule

5A

Oct 10Resolved

Chlorine

27

Sep 30Resolved

Chlorine

27

Sep 30Resolved

Surface Water Treatment Rule

36

Sep 30Resolved

Surface Water Treatment Rule

36

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 29Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 29Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Surface Water Treatment Rule

36

Aug 31Resolved

Surface Water Treatment Rule

36

Aug 31Resolved

Chlorine

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Revised Total Coliform Rule

3A

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Mar 31Resolved

Revised Total Coliform Rule

3A

Feb 29Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

4B

Jan 31Resolved

Revised Total Coliform Rule

3A

Jan 31Resolved

How Does This Compare?

STOCKTON (95219) has 254 recorded violations, including 5 health-based. 6 remain unresolved. 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

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

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

Nearby ZIP Codes

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