City water profile

Water hardness in Noatak

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

Utility-reported hardness

Not yet available

Check your provider and source →

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.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

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.

Noatak Community Water System

AK2340159 · Groundwater influenced by surface water · 485 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: 2.5e-4 mg/L
Action level: 0.015 mg/L

2% of the listed benchmark

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

Violation history (44)

Imported violation history for Noatak Community Water System
Rule	Status	Period
Interim Enhanced Surface Water Treatment Rule	Archived	Mar 1, 2026 to Mar 31, 2026
Surface Water Treatment Rule	Archived	Mar 1, 2026 to Mar 31, 2026
Interim Enhanced Surface Water Treatment Rule	Archived	Feb 1, 2026 to Feb 28, 2026
Surface Water Treatment Rule	Archived	Feb 1, 2026 to Feb 28, 2026
Surface Water Treatment Rule	Archived	Jan 1, 2026 to Jan 31, 2026
Interim Enhanced Surface Water Treatment Rule	Archived	Jan 1, 2026 to Jan 31, 2026
Consumer Confidence Rule	Resolved	Oct 1, 2024 to Jun 23, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2024 to Nov 26, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Surface Water Treatment Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Surface Water Treatment Rule	Resolved	Apr 1, 2024 to Apr 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Apr 1, 2024 to Apr 30, 2024
TTHM	Resolved	Jan 1, 2024 to Nov 5, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Jan 1, 2024 to Jan 31, 2024
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2024 to Nov 5, 2024
Surface Water Treatment Rule	Resolved	Jan 1, 2024 to Jan 31, 2024
Consumer Confidence Rule	Resolved	Oct 1, 2023 to Jun 23, 2025
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Nov 26, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Jun 1, 2023 to Jun 30, 2023
Surface Water Treatment Rule	Resolved	Jun 1, 2023 to Jun 30, 2023
Interim Enhanced Surface Water Treatment Rule	Resolved	May 1, 2023 to May 31, 2023
cis-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
Xylenes, Total	Resolved	Jan 1, 2023 to Dec 31, 2023
DICHLOROMETHANE	Resolved	Jan 1, 2023 to Dec 31, 2023
Vinyl chloride	Resolved	Jan 1, 2023 to Dec 31, 2023
trans-1,2-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,1-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloropropane	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1,2-Trichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
CHLOROBENZENE	Resolved	Jan 1, 2023 to Dec 31, 2023
Benzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Toluene	Resolved	Jan 1, 2023 to Dec 31, 2023
Ethylbenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Styrene	Resolved	Jan 1, 2023 to Dec 31, 2023
Lead and Copper Rule	Unaddressed	Jan 1, 2023
Carbon tetrachloride	Resolved	Jan 1, 2023 to Dec 31, 2023
1,1-Dichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
p-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Trichloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
o-Dichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
Tetrachloroethylene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2,4-Trichlorobenzene	Resolved	Jan 1, 2023 to Dec 31, 2023
1,2-Dichloroethane	Resolved	Jan 1, 2023 to Dec 31, 2023
Interim Enhanced Surface Water Treatment Rule	Resolved	Jan 1, 2021 to Jan 31, 2021

City summary

What the indexed records say

Noatak has 1 published ZIP profile across Northwest Arctic Borough. 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 Noatak

Open a ZIP for site-level provenance and measurements.

ZIP code

99761

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 Noatak

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.