Water Quality in Shungnak, AK (99773)

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

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

147

Population

1

Water Systems

89

Violations (5yr)

3

Health-Based

Location

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Water Systems Serving This Area (1)

Shungnak Water System

3 health-based
Surface water 299 people served
89 violations (5yr) ยท 3 health-based
Lead tested: 2.5 ppb (limit: 15 ppb) ✓ Copper tested: 1500 ppb (limit: 1300 ppb)

Contaminants Found

Surface Water Treatment RuleHealth-Based
13 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
19 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

9 violations
Has active
Public NoticeMonitoring
2 violations
All resolved
BenzeneMonitoring
2 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
2 violations
All resolved
1,2-DichloropropaneMonitoring
2 violations
All resolved
Xylenes, TotalMonitoring
2 violations
All resolved
Vinyl chlorideMonitoring
2 violations
All resolved
1,1-DichloroethyleneMonitoring
2 violations
All resolved
EthylbenzeneMonitoring
2 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
2 violations
All resolved
p-DichlorobenzeneMonitoring
2 violations
All resolved
TrichloroethyleneMonitoring
2 violations
All resolved
StyreneMonitoring
2 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
2 violations
All resolved
1,1,1-TrichloroethaneMonitoring
2 violations
All resolved
o-DichlorobenzeneMonitoring
2 violations
All resolved
TetrachloroethyleneMonitoring
2 violations
All resolved
Carbon tetrachlorideMonitoring
2 violations
All resolved
1,1,2-TrichloroethaneMonitoring
2 violations
All resolved
DICHLOROMETHANEMonitoring
2 violations
All resolved
1,2-DichloroethaneMonitoring
2 violations
All resolved
CHLOROBENZENEMonitoring
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
All resolved
TolueneMonitoring
2 violations
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved
TTHMMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.5 ppb measured Action level: 15 ppb

Sampled: Jul 2025

Copper (Cu)

Exceeds limit
1500 ppb measured Action level: 1300 ppb

Sampled: Jul 2025

How Does This Compare?

Shungnak (99773) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 89.

Fewer violations 96th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Whole House Carbon Filter

A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.

Targets:Chlorine, Sediment, Taste & Odor

Look for:NSF/ANSI 42 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. This is general educational information, not an endorsement of any specific product.

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