Water Quality in Chefornak, AK (99561)

EPA violation data for public water systems serving ZIP code 99561.

Active Health Violations

3 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.

More violations than 95% of US ZIP codes.

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

620

Population

Water Systems

Violations (5yr)

Health-Based

Location

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Water Systems Serving This Area (1)

Chefornak Water System

3 health-based

Groundwater 513 people served

86 violations (5yr) · 3 health-based

Lead tested: 1 ppb (limit: 15 ppb) ✓

Resolved

Revised Total Coliform Rule Monitoring

Apr 2025 Resolved

Benzo(a)pyrene Monitoring

Jan 2025 Resolved

Dinoseb Monitoring

Jan 2025 Resolved

2,4,5-TP Monitoring

Jan 2025 Resolved

Methoxychlor Monitoring

Jan 2025 Resolved

2,3,7,8-TCDD Monitoring

Jan 2025 Resolved

Heptachlor Monitoring

Jan 2025 Resolved

Dalapon Monitoring

Jan 2025 Resolved

BHC-GAMMA Monitoring

Jan 2025 Resolved

Diquat Monitoring

Jan 2025 Resolved

Hexachlorocyclopentadiene Monitoring

Jan 2025 Resolved

Revised Total Coliform Rule Monitoring

Jan 2025 Resolved

Di(2-ethylhexyl) phthalate Monitoring

Jan 2025 Resolved

HEXACHLOROBENZENE Monitoring

Jan 2025 Resolved

1,2-DIBROMO-3-CHLOROPROPANE Monitoring

Jan 2025 Resolved

ETHYLENE DIBROMIDE Monitoring

Jan 2025 Resolved

Endothall Monitoring

Jan 2025 Resolved

Endrin Monitoring

Jan 2025 Resolved

Toxaphene Monitoring

Jan 2025 Resolved

OXAMYL Monitoring

Jan 2025 Resolved

LASSO Monitoring

Jan 2025 Resolved

Pentachlorophenol Monitoring

Jan 2025 Resolved

Di(2-ethylhexyl) adipate Monitoring

Jan 2025 Resolved

Simazine Monitoring

Jan 2025 Resolved

Picloram Monitoring

Jan 2025 Resolved

Chlordane Monitoring

Jan 2025 Resolved

Atrazine Monitoring

Jan 2025 Resolved

Carbofuran Monitoring

Jan 2025 Resolved

Heptachlor epoxide Monitoring

Jan 2025 Resolved

2,4-D Monitoring

Jan 2025 Resolved

Total Polychlorinated Biphenyls (PCB) Monitoring

Jan 2025 Resolved

Glyphosate Monitoring

Jan 2025 Resolved

Revised Total Coliform Rule Monitoring

Dec 2024 Resolved

Revised Total Coliform Rule Monitoring

Nov 2024 Resolved

Consumer Confidence Rule Monitoring

Oct 2024 Resolved

Revised Total Coliform Rule Monitoring

Sep 2024 Resolved

Revised Total Coliform Rule Monitoring

Aug 2024 Resolved

Revised Total Coliform Rule Monitoring

Jun 2024 Resolved

Groundwater Rule Health

Jun 2024 Resolved

Revised Total Coliform Rule Monitoring

May 2024 Resolved

Revised Total Coliform Rule Monitoring

Apr 2024 Resolved

Revised Total Coliform Rule Monitoring

Feb 2024 Resolved

Toluene Monitoring

Jan 2024 Resolved

1,2,4-Trichlorobenzene Monitoring

Jan 2024 Resolved

CHLOROBENZENE Monitoring

Jan 2024 Resolved

Tetrachloroethylene Monitoring

Jan 2024 Resolved

o-Dichlorobenzene Monitoring

Jan 2024 Resolved

1,2-Dichloropropane Monitoring

Jan 2024 Resolved

cis-1,2-Dichloroethylene Monitoring

Jan 2024 Resolved

Vinyl chloride Monitoring

Jan 2024 Resolved

DICHLOROMETHANE Monitoring

Jan 2024 Resolved

p-Dichlorobenzene Monitoring

Jan 2024 Resolved

Trichloroethylene Monitoring

Jan 2024 Resolved

Revised Total Coliform Rule Monitoring

Jan 2024 Resolved

1,2-Dichloroethane Monitoring

Jan 2024 Resolved

Carbon tetrachloride Monitoring

Jan 2024 Resolved

Ethylbenzene Monitoring

Jan 2024 Resolved

Benzene Monitoring

Jan 2024 Resolved

trans-1,2-Dichloroethylene Monitoring

Jan 2024 Resolved

1,1,1-Trichloroethane Monitoring

Jan 2024 Resolved

1,1,2-Trichloroethane Monitoring

Jan 2024 Resolved

Nitrate Monitoring

Jan 2024 Resolved

Xylenes, Total Monitoring

Jan 2024 Resolved

1,1-Dichloroethylene Monitoring

Jan 2024 Resolved

Styrene Monitoring

Jan 2024 Resolved

Revised Total Coliform Rule Monitoring

Nov 2023 Resolved

Groundwater Rule Health

Oct 2023 Resolved

Revised Total Coliform Rule Monitoring

Oct 2023 Resolved

Groundwater Rule Monitoring

Jul 2023 Resolved

Revised Total Coliform Rule Monitoring

Jul 2023 Resolved

Revised Total Coliform Rule Monitoring

Mar 2023 Resolved

Revised Total Coliform Rule Monitoring

Feb 2023 Resolved

Nitrate Monitoring

Jan 2023 Resolved

Revised Total Coliform Rule Monitoring

Jan 2023 Resolved

Consumer Confidence Rule Monitoring

Oct 2022 Resolved

Revised Total Coliform Rule Monitoring

Sep 2022 Resolved

Revised Total Coliform Rule Monitoring

Jun 2022 Resolved

Revised Total Coliform Rule Monitoring

Mar 2022 Resolved

Lead and Copper Rule Monitoring

Jan 2022 Resolved

Revised Total Coliform Rule Monitoring

Nov 2021 Resolved

Consumer Confidence Rule Monitoring

Jul 2021 Resolved

Revised Total Coliform Rule Monitoring

Jul 2021 Resolved

Revised Total Coliform Rule Monitoring

Jun 2021 Resolved

Revised Total Coliform Rule Monitoring

May 2021 Resolved

Contaminants Found

Groundwater RuleHealth-Based

3 violations

All resolved

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

24 violations

All resolved

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations

All resolved

NitrateMonitoring

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

2 violations

All resolved

Lead and Copper RuleMonitoring

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

2 violations

Has active

Benzo(a)pyreneMonitoring

1 violation

All resolved

DinosebMonitoring

1 violation

All resolved

2,4,5-TPMonitoring

1 violation

All resolved

MethoxychlorMonitoring

1 violation

All resolved

2,3,7,8-TCDDMonitoring

1 violation

All resolved

HeptachlorMonitoring

1 violation

All resolved

DalaponMonitoring

1 violation

All resolved

BHC-GAMMAMonitoring

1 violation

All resolved

DiquatMonitoring

1 violation

All resolved

HexachlorocyclopentadieneMonitoring

1 violation

All resolved

Di(2-ethylhexyl) phthalateMonitoring

1 violation

All resolved

HEXACHLOROBENZENEMonitoring

1 violation

All resolved

1,2-DIBROMO-3-CHLOROPROPANEMonitoring

1 violation

All resolved

ETHYLENE DIBROMIDEMonitoring

1 violation

All resolved

EndothallMonitoring

1 violation

All resolved

EndrinMonitoring

1 violation

All resolved

ToxapheneMonitoring

1 violation

All resolved

OXAMYLMonitoring

1 violation

All resolved

LASSOMonitoring

1 violation

All resolved

PentachlorophenolMonitoring

1 violation

All resolved

Di(2-ethylhexyl) adipateMonitoring

1 violation

All resolved

SimazineMonitoring

1 violation

All resolved

PicloramMonitoring

1 violation

All resolved

ChlordaneMonitoring

1 violation

All resolved

AtrazineMonitoring

1 violation

All resolved

CarbofuranMonitoring

1 violation

All resolved

Heptachlor epoxideMonitoring

1 violation

All resolved

2,4-DMonitoring

1 violation

All resolved

Total Polychlorinated Biphenyls (PCB)Monitoring

1 violation

All resolved

GlyphosateMonitoring

1 violation

All resolved

TolueneMonitoring

1 violation

All resolved

1,2,4-TrichlorobenzeneMonitoring

1 violation

All resolved

CHLOROBENZENEMonitoring

1 violation

All resolved

TetrachloroethyleneMonitoring

1 violation

All resolved

o-DichlorobenzeneMonitoring

1 violation

All resolved

1,2-DichloropropaneMonitoring

1 violation

All resolved

cis-1,2-DichloroethyleneMonitoring

1 violation

All resolved

Vinyl chlorideMonitoring

1 violation

All resolved

DICHLOROMETHANEMonitoring

1 violation

All resolved

p-DichlorobenzeneMonitoring

1 violation

All resolved

TrichloroethyleneMonitoring

1 violation

All resolved

1,2-DichloroethaneMonitoring

1 violation

All resolved

Carbon tetrachlorideMonitoring

1 violation

All resolved

EthylbenzeneMonitoring

1 violation

All resolved

BenzeneMonitoring

1 violation

All resolved

trans-1,2-DichloroethyleneMonitoring

1 violation

All resolved

1,1,1-TrichloroethaneMonitoring

1 violation

All resolved

1,1,2-TrichloroethaneMonitoring

1 violation

All resolved

Xylenes, TotalMonitoring

1 violation

All resolved

1,1-DichloroethyleneMonitoring

1 violation

All resolved

StyreneMonitoring

1 violation

All resolved

Lead & Copper Levels

Lead (Pb)

Within limit

1 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

Chefornak (99561) has more violations than 95% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 86.

Fewer violations 95th 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.

Water Quality in Chefornak, AK (99561)

Active Health Violations

Location

Water Systems Serving This Area (1)

Chefornak Water System

Contaminants Found

Lead & Copper Levels

Lead (Pb)

How Does This Compare?

Recommended Water Filters

Whole House Carbon Filter

Nearby ZIP Codes

Check Another ZIP Code