Water Quality in CHINO VALLEY, AZ (86323)

EPA violation data for public water systems serving ZIP code 86323.

235

Total Violations

56

Health-Based

179

Monitoring / Reporting

206

Resolved

What does this mean?

206 of 235 violations have been resolved. 56 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 179 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: 50 Population served: 8,378

Violations Detail (235 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
ChlorineMonitoringN/AN/AAug 31, 2025ResolvedEye and nose irritation; stomach discomfort
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
NitrateMonitoringN/AN/AJun 30, 2025ResolvedInfants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
ArsenicHealth-BasedN/A0.011Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.011Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.011Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer
ArsenicHealth-BasedN/A0.011Mar 31, 2025ResolvedSkin damage; circulatory system problems; increased risk of cancer

Lead & Copper Levels

Violation Timeline

2025(14)

Chlorine

27

Aug 31Resolved

Consumer Confidence Rule

71

Jun 30Active

Nitrate

03

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Public Notice

75

Mar 10Resolved

Public Notice

75

Mar 10Resolved

Public Notice

75

Feb 19Resolved

Public Notice

75

Feb 19Resolved

2024(102)

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Public Notice

75

Dec 26Resolved

Public Notice

75

Dec 26Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Active

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

Consumer Confidence Rule

72

Oct 1Active

Chlorine

27

Sep 30Resolved

Chlorine

27

Sep 30Resolved

Arsenic

03

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Active

Lead and Copper Rule

52

Sep 30Active

Arsenic

03

Sep 30Resolved

Arsenic

03

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Lead and Copper Rule

66

Sep 30Active

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Aug 31Resolved

Public Notice

75

Aug 17Resolved

Public Notice

75

Aug 17Resolved

Nitrate

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Chlorine

27

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Lead and Copper Rule

51

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Resolved

Public Notice

75

Jun 14Resolved

Public Notice

75

Jun 14Resolved

E. COLI

34

Apr 23Active

E. COLI

34

Apr 23Active

E. COLI

34

Apr 23Active

Public Notice

75

Apr 10Resolved

Public Notice

75

Apr 10Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

How Does This Compare?

CHINO VALLEY (86323) has 235 recorded violations, including 56 health-based. 29 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

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

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

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

Nearby ZIP Codes

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