Water Quality in Kokhanok, AK (99606)

EPA violation data for public water systems serving ZIP code 99606.

Past Health-Based Violations

20 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 137 monitoring/reporting violations.

More violations than 98% of US ZIP codes.

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

231

Population

4

Water Systems

157

Violations (5yr)

20

Health-Based

Location

Loading map...

Water Systems Serving This Area (4)

Kokhanok Water & Ww System

15 health-based
Surface water 160 people served
135 violations (5yr) · 15 health-based · All resolved
Lead tested: 1.6 ppb (limit: 15 ppb) ✓ Copper tested: 1800 ppb (limit: 1300 ppb)

Kokhanok Watering Point

Groundwater 130 people served
0 violations

Newhalen Water System

3 health-based
Groundwater 80 people served
11 violations (5yr) · 3 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓

Rainbow King Lodge

2 health-based
Groundwater 55 people served
11 violations (5yr) · 2 health-based · All resolved

Contaminants Found

Surface Water Treatment RuleHealth-Based
44 violations
All resolved
Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

34 violations
All resolved
Groundwater RuleHealth-Based
1 violation
All resolved
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

17 violations
All resolved
Lead and Copper RuleMonitoring

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

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

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

2 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

2 violations
All resolved
TTHMMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1.6 ppb measured Action level: 15 ppb

Sampled: Jul 2025

Copper (Cu)

Exceeds limit
1800 ppb measured Action level: 1300 ppb

Sampled: Jul 2025

How Does This Compare?

Kokhanok (99606) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 157.

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.

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

Nearby ZIP Codes

Check Another ZIP Code