Water Quality in Selawik, AK (99770)

EPA violation data for public water systems serving ZIP code 99770.

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

412

Population

1

Water Systems

147

Violations (5yr)

23

Health-Based

Location

Loading map...

Water Systems Serving This Area (1)

Selawik Safewater Facility

23 health-based
Surface water 846 people served
147 violations (5yr) · 23 health-based
Lead tested: 1.7 ppb (limit: 15 ppb) ✓

Contaminants Found

Surface Water Treatment RuleHealth-Based
28 violations
All resolved
Interim Enhanced Surface Water Treatment RuleHealth-Based
22 violations
All resolved
TTHMHealth-Based
10 violations
Has active
LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
All resolved
CARBON, TOTALMonitoring
10 violations
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

8 violations
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

8 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
8 violations
All resolved
Lead and Copper RuleMonitoring

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

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

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

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1.7 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

Selawik (99770) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 147.

Fewer violations 98th 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.

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. This is general educational information, not an endorsement of any specific product.

Nearby ZIP Codes

Check Another ZIP Code