Water Quality in YUMA, AZ (85365)

EPA violation data for public water systems serving ZIP code 85365.

628

Total Violations

199

Health-Based

429

Monitoring / Reporting

547

Resolved

What does this mean?

547 of 628 violations have been resolved. 199 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 429 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: 36 Population served: 22,695

Violations Detail (628 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Revised Total Coliform RuleMonitoringN/AN/AAug 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
ChlorineMonitoringN/AN/AJul 31, 2025ResolvedEye and nose irritation; stomach discomfort
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJul 31, 2025ResolvedN/A
Public NoticeMonitoringN/AN/AJul 26, 2025ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(59)

Revised Total Coliform Rule

3A

Aug 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Chlorine

27

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Revised Total Coliform Rule

3A

Jul 31Resolved

Public Notice

75

Jul 26Active

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Lead and Copper Rule

51

Jun 30Active

Lead and Copper Rule

51

Jun 30Active

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Active

Lead and Copper Rule

52

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Lead and Copper Rule

52

Jun 30Active

Consumer Confidence Rule

71

Jun 30Active

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

4B

May 31Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Groundwater Rule

45

Apr 12Resolved

Groundwater Rule

45

Apr 12Resolved

Groundwater Rule

45

Apr 12Resolved

Groundwater Rule

45

Apr 12Resolved

TTHM

35

Mar 31Active

TTHM

35

Mar 31Active

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Chlorine

27

Feb 28Resolved

Chlorine

27

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Revised Total Coliform Rule

4B

Feb 28Resolved

Public Notice

75

Feb 19Active

2024(217)

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Active

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

TTHM

27

Dec 31Active

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

TTHM

27

Dec 31Active

TTHM

27

Dec 31Active

Total Haloacetic Acids (HAA5)

27

Dec 31Active

Total Haloacetic Acids (HAA5)

27

Dec 31Active

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Revised Total Coliform Rule

4B

Dec 31Resolved

Lead and Copper Rule

52

Dec 31Active

Lead and Copper Rule

52

Dec 31Active

Lead and Copper Rule

66

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Arsenic

02

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Revised Total Coliform Rule

3A

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Public Notice

75

Dec 21Active

Public Notice

75

Dec 19Active

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Active

Public Notice

75

Dec 19Active

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

4B

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Oct 31Resolved

Public Notice

75

Oct 18Resolved

Public Notice

75

Oct 18Resolved

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

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

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 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

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 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

Public Notice

75

Oct 9Active

Consumer Confidence Rule

72

Oct 1Resolved

Consumer Confidence Rule

72

Oct 1Resolved

Consumer Confidence Rule

72

Oct 1Active

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Sep 30Resolved

Surface Water Treatment Rule

36

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Sep 30Resolved

Surface Water Treatment Rule

36

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Lead and Copper Rule

52

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Arsenic

02

Sep 30Resolved

Revised Total Coliform Rule

4B

Jul 31Resolved

Revised Total Coliform Rule

4B

Jul 31Resolved

Public Notice

75

Jul 23Active

Public Notice

75

Jul 4Resolved

Public Notice

75

Jul 4Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Revised Total Coliform Rule

4B

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

03

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Lead and Copper Rule

52

Jun 30Active

Lead and Copper Rule

52

Jun 30Active

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Arsenic

02

Jun 30Resolved

Public Notice

75

Jun 20Active

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Groundwater Rule

45

May 11Resolved

Public Notice

75

Apr 20Resolved

Public Notice

75

Apr 20Resolved

Public Notice

75

Apr 19Resolved

Public Notice

75

Apr 19Resolved

Public Notice

75

Apr 4Active

Revised Total Coliform Rule

4B

Mar 31Resolved

Revised Total Coliform Rule

4B

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

03

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Arsenic

02

Mar 31Resolved

Revised Total Coliform Rule

4B

Feb 29Resolved

Revised Total Coliform Rule

4B

Feb 29Resolved

Public Notice

75

Jan 25Resolved

Public Notice

75

Jan 25Resolved

Public Notice

75

Jan 19Active

How Does This Compare?

YUMA (85365) has 628 recorded violations, including 199 health-based. 81 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

Check Another ZIP Code