Water Quality in WALES, AK (99783)

EPA violation data for public water systems serving ZIP code 99783.

190

Total Violations

8

Health-Based

182

Monitoring / Reporting

189

Resolved

What does this mean?

189 of 190 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 182 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: 217

Violations Detail (190 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Revised Total Coliform RuleMonitoringN/AN/AMay 31, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AApr 30, 2025ResolvedN/A
Combined UraniumMonitoringN/AN/AMar 31, 2025ResolvedN/A
Combined UraniumMonitoringN/AN/ADec 31, 2024ResolvedN/A
Public NoticeMonitoringN/AN/ANov 28, 2024ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/ASep 30, 2024ResolvedN/A
TTHMMonitoringN/AN/ASep 30, 2024ResolvedN/A
Public NoticeMonitoringN/AN/AAug 19, 2024ResolvedN/A
Combined UraniumMonitoringN/AN/AJun 30, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AApr 30, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(3)

Revised Total Coliform Rule

3A

May 31Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Combined Uranium

03

Mar 31Resolved

2024(10)

Combined Uranium

03

Dec 31Resolved

Public Notice

76

Nov 28Resolved

Total Haloacetic Acids (HAA5)

27

Sep 30Resolved

TTHM

27

Sep 30Resolved

Public Notice

76

Aug 19Resolved

Combined Uranium

03

Jun 30Resolved

Revised Total Coliform Rule

3A

Apr 30Resolved

Public Notice

75

Mar 31Resolved

Combined Uranium

03

Mar 31Resolved

Combined Uranium

03

Mar 31Resolved

How Does This Compare?

WALES (99783) has 190 recorded violations, including 8 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 →

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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