Water Quality in Manokotak, AK (99628)

EPA violation data for public water systems serving ZIP code 99628.

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

679

Population

2

Water Systems

450

Violations (5yr)

10

Health-Based

Location

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Water Systems Serving This Area (2)

Manokotak Water System

4 health-based
Groundwater 293 people served
228 violations (5yr) · 4 health-based
Lead tested: 6.07 ppb (limit: 15 ppb) ✓ Copper tested: 1760 ppb (limit: 1300 ppb)

Manokotak Heights W/S

6 health-based
Groundwater 215 people served
222 violations (5yr) · 6 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓ Copper tested: 1590 ppb (limit: 1300 ppb)

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
4 violations
All resolved
Groundwater RuleHealth-Based
4 violations
All resolved
PentachlorophenolMonitoring
14 violations
All resolved
GlyphosateMonitoring
14 violations
All resolved
HEXACHLOROBENZENEMonitoring
14 violations
All resolved
LASSOMonitoring
14 violations
All resolved
2,4-DMonitoring
14 violations
All resolved
HexachlorocyclopentadieneMonitoring
14 violations
All resolved
Di(2-ethylhexyl) adipateMonitoring
14 violations
All resolved
2,4,5-TPMonitoring
14 violations
All resolved
Heptachlor epoxideMonitoring
14 violations
All resolved
HeptachlorMonitoring
14 violations
All resolved
ETHYLENE DIBROMIDEMonitoring
14 violations
All resolved
2,3,7,8-TCDDMonitoring
14 violations
All resolved
DiquatMonitoring
14 violations
All resolved
SimazineMonitoring
14 violations
All resolved
DalaponMonitoring
14 violations
All resolved
BHC-GAMMAMonitoring
14 violations
All resolved
EndrinMonitoring
14 violations
All resolved
EndothallMonitoring
14 violations
All resolved
OXAMYLMonitoring
14 violations
All resolved
ToxapheneMonitoring
14 violations
All resolved
Benzo(a)pyreneMonitoring
14 violations
All resolved
CarbofuranMonitoring
14 violations
All resolved
AtrazineMonitoring
14 violations
All resolved
PicloramMonitoring
14 violations
All resolved
MethoxychlorMonitoring
14 violations
All resolved
Total Polychlorinated Biphenyls (PCB)Monitoring
14 violations
All resolved
ChlordaneMonitoring
14 violations
All resolved
Di(2-ethylhexyl) phthalateMonitoring
14 violations
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
14 violations
All resolved
DinosebMonitoring
14 violations
All resolved
Lead and Copper RuleMonitoring

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

8 violations
Has active
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

5 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

Lead & Copper Levels

Lead (Pb)

Within limit
6.07 ppb measured Action level: 15 ppb

Sampled: Jul 2025

Copper (Cu)

Exceeds limit
1760 ppb measured Action level: 1300 ppb

Sampled: Jan 2024

How Does This Compare?

Manokotak (99628) has more violations than 100% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 450.

Fewer violations 100th 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 →

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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