City water profile

Water hardness in Chefornak

Find official utility reports, understand hardness, and check the water system serving your home in Chefornak, Alaska.

Utility-reported hardness

Not yet available

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State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 1
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

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Convert a hardness result →Test your tap →

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Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Chefornak Water System

AK2270338 · Groundwater · 513 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (92)

Imported violation history for Chefornak Water System
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 1, 2026
Revised Total Coliform Rule	Archived	Dec 1, 2025 to Dec 31, 2025
Public Notice	Unaddressed	Oct 15, 2025
Revised Total Coliform Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Endrin	Resolved	Jan 1, 2025 to Mar 31, 2025
BHC-GAMMA	Resolved	Jan 1, 2025 to Mar 31, 2025
Methoxychlor	Resolved	Jan 1, 2025 to Mar 31, 2025
Glyphosate	Resolved	Jan 1, 2025 to Mar 31, 2025
OXAMYL	Resolved	Jan 1, 2025 to Mar 31, 2025
Simazine	Resolved	Jan 1, 2025 to Mar 31, 2025
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2025 to Mar 31, 2025
Picloram	Resolved	Jan 1, 2025 to Mar 31, 2025
LASSO	Resolved	Jan 1, 2025 to Mar 31, 2025
2,3,7,8-TCDD	Resolved	Jan 1, 2025 to Mar 31, 2025
Heptachlor	Resolved	Jan 1, 2025 to Mar 31, 2025
HEXACHLOROBENZENE	Resolved	Jan 1, 2025 to Mar 31, 2025
Total Polychlorinated Biphenyls (PCB)	Resolved	Jan 1, 2025 to Mar 31, 2025
ETHYLENE DIBROMIDE	Resolved	Jan 1, 2025 to Mar 31, 2025
Chlordane	Resolved	Jan 1, 2025 to Mar 31, 2025
2,4-D	Resolved	Jan 1, 2025 to Mar 31, 2025
2,4,5-TP	Resolved	Jan 1, 2025 to Mar 31, 2025
Toxaphene	Resolved	Jan 1, 2025 to Mar 31, 2025
Pentachlorophenol	Resolved	Jan 1, 2025 to Mar 31, 2025
1,2-DIBROMO-3-CHLOROPROPANE	Resolved	Jan 1, 2025 to Mar 31, 2025
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2025 to Mar 31, 2025
Benzo(a)pyrene	Resolved	Jan 1, 2025 to Mar 31, 2025
Revised Total Coliform Rule	Resolved	Jan 1, 2025 to Jan 31, 2025
Dalapon	Resolved	Jan 1, 2025 to Mar 31, 2025
Atrazine	Resolved	Jan 1, 2025 to Mar 31, 2025
Hexachlorocyclopentadiene	Resolved	Jan 1, 2025 to Mar 31, 2025
Carbofuran	Resolved	Jan 1, 2025 to Mar 31, 2025
Diquat	Resolved	Jan 1, 2025 to Mar 31, 2025
Dinoseb	Resolved	Jan 1, 2025 to Mar 31, 2025
Heptachlor epoxide	Resolved	Jan 1, 2025 to Mar 31, 2025
Endothall	Resolved	Jan 1, 2025 to Mar 31, 2025
Revised Total Coliform Rule	Resolved	Dec 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
Consumer Confidence Rule	Resolved	Oct 1, 2024 to Sep 30, 2025
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Revised Total Coliform Rule	Resolved	Aug 1, 2024 to Aug 31, 2024
Revised Total Coliform Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Groundwater RuleHealth-based	Resolved	Jun 1, 2024 to Feb 25, 2025
Revised Total Coliform Rule	Resolved	May 1, 2024 to May 31, 2024
Revised Total Coliform Rule	Resolved	Apr 1, 2024 to Apr 30, 2024
Revised Total Coliform Rule	Resolved	Feb 1, 2024 to Feb 29, 2024
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
Xylenes, Total	Resolved	Jan 1, 2024 to Dec 31, 2024
DICHLOROMETHANE	Resolved	Jan 1, 2024 to Dec 31, 2024
o-Dichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
p-Dichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
Vinyl chloride	Resolved	Jan 1, 2024 to Dec 31, 2024
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
Carbon tetrachloride	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloropropane	Resolved	Jan 1, 2024 to Dec 31, 2024
Styrene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1,2-Trichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
Trichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
Benzene	Resolved	Jan 1, 2024 to Dec 31, 2024
CHLOROBENZENE	Resolved	Jan 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Jan 1, 2024 to Jan 31, 2024
Tetrachloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1,1-Trichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
Nitrate	Resolved	Jan 1, 2024 to Dec 31, 2024
Ethylbenzene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,2-Dichloroethane	Resolved	Jan 1, 2024 to Dec 31, 2024
Toluene	Resolved	Jan 1, 2024 to Dec 31, 2024
1,1-Dichloroethylene	Resolved	Jan 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2023 to Nov 30, 2023
Groundwater RuleHealth-based	Resolved	Oct 13, 2023 to Feb 25, 2025
Groundwater RuleHealth-based	Resolved	Oct 13, 2023 to Apr 22, 2024
Revised Total Coliform Rule	Resolved	Oct 1, 2023 to Oct 31, 2023
Groundwater Rule	Resolved	Jul 15, 2023 to Apr 22, 2024
Revised Total Coliform Rule	Resolved	Jul 1, 2023 to Jul 31, 2023
Lead and Copper Rule	Unaddressed	Mar 6, 2023
Revised Total Coliform Rule	Resolved	Mar 1, 2023 to Mar 31, 2023
Revised Total Coliform Rule	Resolved	Feb 1, 2023 to Feb 28, 2023
Nitrate	Resolved	Jan 1, 2023 to Dec 31, 2023
Revised Total Coliform Rule	Resolved	Jan 1, 2023 to Jan 31, 2023
Consumer Confidence Rule	Resolved	Oct 1, 2022 to Aug 8, 2023
Revised Total Coliform Rule	Resolved	Sep 1, 2022 to Sep 30, 2022
Revised Total Coliform Rule	Resolved	Jun 1, 2022 to Jun 30, 2022
Revised Total Coliform Rule	Resolved	Mar 1, 2022 to Mar 31, 2022
Lead and Copper Rule	Resolved	Jan 1, 2022 to Aug 30, 2022
Revised Total Coliform Rule	Resolved	Nov 1, 2021 to Nov 30, 2021
Revised Total Coliform Rule	Resolved	Jul 1, 2021 to Jul 31, 2021
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Jul 2, 2021
Revised Total Coliform Rule	Resolved	Jun 1, 2021 to Jun 30, 2021
Revised Total Coliform Rule	Resolved	May 1, 2021 to May 31, 2021
Revised Total Coliform Rule	Resolved	Feb 1, 2021 to Feb 28, 2021
Revised Total Coliform Rule	Resolved	Jan 1, 2021 to Jan 31, 2021
Nitrate	Resolved	Jan 1, 2021 to Dec 31, 2021

City summary

What the indexed records say

Chefornak has 1 published ZIP profile across Bethel Census Area. No qualifying nearby hardness observation is available for the city.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard0 ZIPs

0 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: — miles
Profiles with evidence: 0/1

Confidence labels

High: 0Moderate: 0Low: 0

Observation window: unavailable to unavailable.

ZIP directory

Water reports in Chefornak

Open a ZIP for site-level provenance and measurements.

ZIP code

99561

No estimate

—

Nearest site: — mi
Confidence: —

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

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Questions people ask

About water in Chefornak

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.