Water Quality in SHUNGNAK, AK (99773)

EPA violation data for public water systems serving ZIP code 99773.

93

Total Violations

4

Health-Based

89

Monitoring / Reporting

92

Resolved

What does this mean?

92 of 93 violations have been resolved. 4 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 89 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: 1 Population served: 299

Violations Detail (93 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Surface Water Treatment RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Surface Water Treatment RuleMonitoringN/AN/ADec 31, 2024ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/ADec 31, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/ADec 31, 2024ActiveN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AOct 31, 2024ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJul 31, 2024ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AJun 30, 2024ResolvedN/A
Lead and Copper RuleMonitoringN/AN/AJun 1, 2024ResolvedN/A
Interim Enhanced Surface Water Treatment RuleMonitoringN/AN/AApr 30, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(2)

Surface Water Treatment Rule

36

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

May 31Resolved

2024(14)

Surface Water Treatment Rule

36

Dec 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Dec 31Resolved

Lead and Copper Rule

52

Dec 31Active

Interim Enhanced Surface Water Treatment Rule

38

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jun 30Resolved

Lead and Copper Rule

66

Jun 1Resolved

Interim Enhanced Surface Water Treatment Rule

38

Apr 30Resolved

Surface Water Treatment Rule

36

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

38

Feb 29Resolved

Surface Water Treatment Rule

36

Feb 29Resolved

Surface Water Treatment Rule

36

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

38

Jan 31Resolved

Lead and Copper Rule

66

Jan 28Resolved

How Does This Compare?

SHUNGNAK (99773) has 93 recorded violations, including 4 health-based. 1 remains 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

NSF Certified Products → EPA Safe Drinking Water Guide →

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

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

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