Water Quality in TUCSON, AZ (85756)

EPA violation data for public water systems serving ZIP code 85756.

245

Total Violations

47

Health-Based

198

Monitoring / Reporting

229

Resolved

What does this mean?

229 of 245 violations have been resolved. 47 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 198 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: 10 Population served: 2,789

Violations Detail (245 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/AApr 10, 2025ActiveN/A
Public NoticeMonitoringN/AN/AApr 10, 2025ActiveN/A
Revised Total Coliform RuleMonitoringN/AN/AFeb 28, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AFeb 28, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AFeb 28, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AFeb 28, 2025ResolvedN/A
Groundwater RuleHealth-BasedN/AN/AFeb 18, 2025ResolvedN/A
Groundwater RuleHealth-BasedN/AN/AFeb 18, 2025ResolvedN/A
Groundwater RuleHealth-BasedN/AN/AFeb 18, 2025ResolvedN/A
Groundwater RuleHealth-BasedN/AN/AFeb 18, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(12)

Public Notice

75

Apr 10Active

Public Notice

75

Apr 10Active

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Revised Total Coliform Rule

3A

Feb 28Resolved

Groundwater Rule

45

Feb 18Resolved

Groundwater Rule

45

Feb 18Resolved

Groundwater Rule

45

Feb 18Resolved

Groundwater Rule

45

Feb 18Resolved

Groundwater Rule

45

Feb 18Resolved

Groundwater Rule

45

Feb 18Resolved

2024(88)

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

52

Dec 31Active

Lead and Copper Rule

52

Dec 31Active

Groundwater Rule

45

Dec 27Resolved

Groundwater Rule

45

Dec 27Resolved

Groundwater Rule

45

Dec 27Resolved

Groundwater Rule

45

Dec 27Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Active

Public Notice

75

Dec 18Resolved

Public Notice

75

Dec 18Resolved

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

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

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

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 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 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

Consumer Confidence Rule

72

Oct 1Resolved

Consumer Confidence Rule

72

Oct 1Resolved

Lead and Copper Rule

66

Sep 30Resolved

Lead and Copper Rule

66

Sep 30Resolved

Public Notice

75

Sep 1Resolved

Public Notice

75

Sep 1Resolved

Public Notice

75

Aug 4Resolved

Public Notice

75

Aug 4Resolved

Public Notice

75

Jul 13Resolved

Public Notice

75

Jul 13Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

TTHM

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Chlorine

27

May 31Resolved

Chlorine

27

May 31Resolved

Revised Total Coliform Rule

4B

Apr 30Resolved

Revised Total Coliform Rule

4B

Apr 30Resolved

Chlorine

27

Apr 30Resolved

Chlorine

27

Apr 30Resolved

Public Notice

75

Apr 12Resolved

Public Notice

75

Apr 12Resolved

Public Notice

75

Apr 4Resolved

Public Notice

75

Apr 4Resolved

Revised Total Coliform Rule

4B

Mar 31Resolved

Revised Total Coliform Rule

4B

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Chlorine

27

Mar 31Resolved

Revised Total Coliform Rule

4B

Feb 29Resolved

Revised Total Coliform Rule

4B

Feb 29Resolved

Revised Total Coliform Rule

4B

Feb 29Resolved

Public Notice

75

Feb 15Resolved

Public Notice

75

Feb 15Resolved

Public Notice

75

Jan 17Resolved

Public Notice

75

Jan 17Resolved

How Does This Compare?

TUCSON (85756) has 245 recorded violations, including 47 health-based. 16 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