Water Quality in TUCSON, AZ (85705)

EPA violation data for public water systems serving ZIP code 85705.

197

Total Violations

4

Health-Based

193

Monitoring / Reporting

197

Resolved

What does this mean?

197 of 197 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 193 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: 30,173

Violations Detail (197 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
TrichloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedLiver problems; increased risk of cancer
TrichloroethyleneMonitoringN/AN/AJun 30, 2025ResolvedLiver problems; increased risk of cancer
1,2-DichloropropaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
1,2,4-TrichlorobenzeneMonitoringN/AN/AJun 30, 2025ResolvedN/A
1,1,1-TrichloroethaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
1,2-DichloroethaneMonitoringN/AN/AJun 30, 2025ResolvedN/A
EthylbenzeneMonitoringN/AN/AJun 30, 2025ResolvedN/A
Vinyl chlorideMonitoringN/AN/AJun 30, 2025ResolvedIncreased risk of cancer
StyreneMonitoringN/AN/AJun 30, 2025ResolvedN/A
Xylenes, TotalMonitoringN/AN/AJun 30, 2025ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(45)

Trichloroethylene

03

Jun 30Resolved

Trichloroethylene

03

Jun 30Resolved

1,2-Dichloropropane

03

Jun 30Resolved

1,2,4-Trichlorobenzene

03

Jun 30Resolved

1,1,1-Trichloroethane

03

Jun 30Resolved

1,2-Dichloroethane

03

Jun 30Resolved

Ethylbenzene

03

Jun 30Resolved

Vinyl chloride

03

Jun 30Resolved

Styrene

03

Jun 30Resolved

Xylenes, Total

03

Jun 30Resolved

cis-1,2-Dichloroethylene

03

Jun 30Resolved

DICHLOROMETHANE

03

Jun 30Resolved

Toluene

03

Jun 30Resolved

1,1-Dichloroethylene

03

Jun 30Resolved

o-Dichlorobenzene

03

Jun 30Resolved

trans-1,2-Dichloroethylene

03

Jun 30Resolved

Vinyl chloride

03

Jun 30Resolved

cis-1,2-Dichloroethylene

03

Jun 30Resolved

CHLOROBENZENE

03

Jun 30Resolved

p-Dichlorobenzene

03

Jun 30Resolved

1,2-Dichloropropane

03

Jun 30Resolved

Tetrachloroethylene

03

Jun 30Resolved

1,1-Dichloroethylene

03

Jun 30Resolved

1,2,4-Trichlorobenzene

03

Jun 30Resolved

Carbon tetrachloride

03

Jun 30Resolved

1,1,2-Trichloroethane

03

Jun 30Resolved

Xylenes, Total

03

Jun 30Resolved

CHLOROBENZENE

03

Jun 30Resolved

Ethylbenzene

03

Jun 30Resolved

trans-1,2-Dichloroethylene

03

Jun 30Resolved

o-Dichlorobenzene

03

Jun 30Resolved

Benzene

03

Jun 30Resolved

Carbon tetrachloride

03

Jun 30Resolved

1,1,2-Trichloroethane

03

Jun 30Resolved

Benzene

03

Jun 30Resolved

p-Dichlorobenzene

03

Jun 30Resolved

1,2-Dichloroethane

03

Jun 30Resolved

Styrene

03

Jun 30Resolved

DICHLOROMETHANE

03

Jun 30Resolved

Toluene

03

Jun 30Resolved

1,1,1-Trichloroethane

03

Jun 30Resolved

Tetrachloroethylene

03

Jun 30Resolved

Nitrate

03

Jun 30Resolved

Public Notice

75

Apr 11Resolved

Public Notice

75

Apr 11Resolved

2024(14)

Lead and Copper Rule

66

Dec 31Resolved

Lead and Copper Rule

66

Dec 31Resolved

Public Notice

75

Dec 19Resolved

Public Notice

75

Dec 19Resolved

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

4G

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

LEAD AND COPPER RULE REVISIONS

2E

Oct 16Resolved

Chlorine

27

Jan 31Resolved

Chlorine

27

Jan 31Resolved

How Does This Compare?

TUCSON (85705) has 197 recorded violations, including 4 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

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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