Water Quality in SIERRA VISTA, AZ (85650)

EPA violation data for public water systems serving ZIP code 85650.

547

Total Violations

12

Health-Based

535

Monitoring / Reporting

547

Resolved

What does this mean?

547 of 547 violations have been resolved. 12 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 535 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: 2 Population served: 12,810

Violations Detail (547 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/ANov 12, 2024ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations

Lead & Copper Levels

Violation Timeline

2024(40)

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

E. COLI

34

Nov 12Resolved

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

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

E. COLI

34

Oct 10Resolved

2023(10)

E. COLI

34

Sep 8Resolved

E. COLI

34

Sep 8Resolved

E. COLI

34

Sep 8Resolved

E. COLI

34

Sep 8Resolved

E. COLI

34

Aug 10Resolved

E. COLI

34

Aug 10Resolved

E. COLI

34

Aug 10Resolved

E. COLI

34

Aug 10Resolved

E. COLI

34

May 10Resolved

E. COLI

34

May 10Resolved

How Does This Compare?

SIERRA VISTA (85650) has 547 recorded violations, including 12 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

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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