Water Quality in HELENA, MT (59604)

EPA violation data for public water systems serving ZIP code 59604.

101

Total Violations

6

Health-Based

95

Monitoring / Reporting

101

Resolved

What does this mean?

101 of 101 violations have been resolved. 6 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 95 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: 17 Population served: 2,490

Violations Detail (101 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Lead and Copper RuleMonitoringN/AN/ADec 29, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/ADec 29, 2024ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/ASep 30, 2024ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/ASep 30, 2024ResolvedN/A
Revised Total Coliform RuleHealth-BasedN/AN/ASep 30, 2024ResolvedN/A
Lead and Copper RuleHealth-BasedN/AN/AMar 31, 2024ResolvedN/A
Lead and Copper RuleHealth-BasedN/AN/AMar 31, 2024ResolvedN/A
Lead and Copper RuleHealth-BasedN/AN/AMar 31, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/AMar 31, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/AMar 31, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2024(11)

Lead and Copper Rule

66

Dec 29Resolved

Lead and Copper Rule

66

Dec 29Resolved

Revised Total Coliform Rule

2D

Sep 30Resolved

Revised Total Coliform Rule

2D

Sep 30Resolved

Revised Total Coliform Rule

2D

Sep 30Resolved

Lead and Copper Rule

57

Mar 31Resolved

Lead and Copper Rule

57

Mar 31Resolved

Lead and Copper Rule

57

Mar 31Resolved

Lead and Copper Rule

56

Mar 31Resolved

Lead and Copper Rule

56

Mar 31Resolved

Lead and Copper Rule

56

Mar 31Resolved

2023(13)

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Surface Water Treatment Rule

36

Nov 30Resolved

Long Term 2 Enhanced Surface Water Treatment Rule

36

Nov 30Resolved

Long Term 2 Enhanced Surface Water Treatment Rule

36

Nov 30Resolved

Long Term 2 Enhanced Surface Water Treatment Rule

36

Nov 30Resolved

Consumer Confidence Rule

72

Sep 30Resolved

Consumer Confidence Rule

72

Sep 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

How Does This Compare?

HELENA (59604) has 101 recorded violations, including 6 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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