City water profile

Water hardness in Shaktoolik

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

Shaktoolik Water System

AK2340442 · Surface water · 270 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 (3)

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: 0.0042 mg/L
Action level: 0.015 mg/L

28% of the listed benchmark

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

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 2.3 mg/L
Action level: 1.3 mg/L

177% of the listed benchmark

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

TTHM

EPA SDWIS reported health-based violation

Reported violation

Reported level: 0.088 MG/L
Maximum contaminant level: 0.08 MG/L

110% of the listed benchmark

Monitoring period: Apr 1, 2023 to Jun 30, 2023

Violation history (108)

Imported violation history for Shaktoolik Water System
Rule	Status	Period
Lead and Copper Rule	Unaddressed	Jan 31, 2026
Total Haloacetic Acids (HAA5)	Archived	Jan 1, 2026 to Mar 31, 2026
TTHM	Archived	Jan 1, 2026 to Mar 31, 2026
Surface Water Treatment Rule	Resolved	Dec 1, 2025 to Dec 31, 2025
Chlorine	Resolved	Dec 1, 2025 to Dec 31, 2025
Revised Total Coliform Rule	Resolved	Dec 1, 2025 to Dec 31, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Dec 1, 2025 to Dec 31, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Nov 1, 2025 to Nov 30, 2025
Surface Water Treatment Rule	Resolved	Nov 1, 2025 to Nov 30, 2025
TTHM	Archived	Oct 1, 2025 to Dec 31, 2025
Chlorine	Resolved	Sep 1, 2025 to Sep 30, 2025
Surface Water Treatment Rule	Resolved	Sep 1, 2025 to Sep 30, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Sep 1, 2025 to Sep 30, 2025
Revised Total Coliform Rule	Resolved	Sep 1, 2025 to Sep 30, 2025
Interim Enhanced Surface Water Treatment RuleHealth-based	Resolved	Aug 1, 2025 to Aug 31, 2025
Surface Water Treatment Rule	Resolved	Jul 1, 2025 to Jul 31, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Jul 1, 2025 to Jul 31, 2025
Revised Total Coliform Rule	Resolved	Jun 1, 2025 to Jun 30, 2025
Interim Enhanced Surface Water Treatment RuleHealth-based	Resolved	Jun 1, 2025 to Jun 30, 2025
Surface Water Treatment Rule	Resolved	Jun 1, 2025 to Jun 30, 2025
Chlorine	Resolved	Jun 1, 2025 to Jun 30, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	May 1, 2025 to May 31, 2025
Surface Water Treatment Rule	Resolved	May 1, 2025 to May 31, 2025
Revised Total Coliform Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Surface Water Treatment Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Chlorine	Resolved	Apr 1, 2025 to Apr 30, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Apr 1, 2025 to Apr 30, 2025
Chlorine	Resolved	Mar 1, 2025 to Mar 31, 2025
Interim Enhanced Surface Water Treatment Rule	Resolved	Mar 1, 2025 to Mar 31, 2025
Chlorine	Resolved	Feb 1, 2025 to Feb 28, 2025
Revised Total Coliform Rule	Resolved	Feb 1, 2025 to Mar 10, 2024
Surface Water Treatment Rule	Resolved	Feb 1, 2025 to Feb 28, 2025
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2025 to Mar 31, 2025
TTHM	Resolved	Jan 1, 2025 to Mar 31, 2025
Chlorine	Resolved	Dec 1, 2024 to Dec 31, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Dec 1, 2024 to Dec 31, 2024
Surface Water Treatment Rule	Resolved	Dec 1, 2024 to Dec 31, 2024
Revised Total Coliform Rule	Resolved	Dec 1, 2024 to Dec 31, 2024
Surface Water Treatment Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
Chlorine	Resolved	Nov 1, 2024 to Nov 30, 2024
Revised Total Coliform Rule	Resolved	Nov 1, 2024 to Nov 30, 2024
Revised Total Coliform Rule	Resolved	Oct 1, 2024 to Oct 31, 2024
Surface Water Treatment Rule	Resolved	Oct 1, 2024 to Oct 31, 2024
TTHM	Resolved	Oct 1, 2024 to Dec 31, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Oct 1, 2024 to Oct 31, 2024
Chlorine	Resolved	Oct 1, 2024 to Oct 31, 2024
Total Haloacetic Acids (HAA5)	Resolved	Oct 1, 2024 to Dec 31, 2024
Chlorine	Resolved	Sep 1, 2024 to Sep 30, 2024
Surface Water Treatment Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Revised Total Coliform Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Sep 1, 2024 to Sep 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Aug 1, 2024 to Aug 31, 2024
Surface Water Treatment Rule	Resolved	Aug 1, 2024 to Aug 31, 2024
Chlorine	Resolved	Jul 1, 2024 to Jul 31, 2024
Surface Water Treatment Rule	Resolved	Jul 1, 2024 to Jul 31, 2024
Surface Water Treatment Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	Jun 1, 2024 to Jun 30, 2024
Interim Enhanced Surface Water Treatment Rule	Resolved	May 1, 2024 to May 31, 2024
Surface Water Treatment Rule	Resolved	May 1, 2024 to May 31, 2024
Revised Total Coliform Rule	Resolved	May 1, 2024 to May 31, 2024
Chlorine	Resolved	May 1, 2024 to May 31, 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
Interim Enhanced Surface Water Treatment Rule	Resolved	Mar 1, 2024 to Mar 31, 2024
Surface Water Treatment Rule	Resolved	Mar 1, 2024 to Mar 31, 2024
Total Haloacetic Acids (HAA5)	Resolved	Jan 1, 2024 to Mar 31, 2024
TTHM	Resolved	Jan 1, 2024 to Mar 31, 2024
Surface Water Treatment Rule	Resolved	Oct 1, 2023 to Oct 31, 2023
Interim Enhanced Surface Water Treatment Rule	Resolved	Oct 1, 2023 to Oct 31, 2023
Total Haloacetic Acids (HAA5)	Resolved	Oct 1, 2023 to Dec 31, 2023
TTHM	Resolved	Oct 1, 2023 to Dec 31, 2023
Interim Enhanced Surface Water Treatment Rule	Resolved	Jul 1, 2023 to Jul 31, 2023
Surface Water Treatment Rule	Resolved	Jul 1, 2023 to Jul 31, 2023
TTHMHealth-based	Resolved	Apr 1, 2023 to Jun 30, 2023
Revised Total Coliform Rule	Resolved	Feb 1, 2023 to Feb 28, 2023
Surface Water Treatment Rule	Resolved	Feb 1, 2023 to Feb 28, 2023
Chlorine	Resolved	Jan 1, 2023 to Mar 27, 2023
Revised Total Coliform Rule	Resolved	Dec 1, 2022 to Dec 31, 2022
Total Haloacetic Acids (HAA5)	Resolved	Oct 1, 2022 to Dec 31, 2022
TTHM	Resolved	Oct 1, 2022 to Dec 31, 2022
Interim Enhanced Surface Water Treatment Rule	Resolved	Aug 1, 2022 to Aug 31, 2022
Revised Total Coliform Rule	Resolved	Aug 1, 2022 to Aug 31, 2022
Interim Enhanced Surface Water Treatment Rule	Resolved	Jul 1, 2022 to Jul 31, 2022
Surface Water Treatment Rule	Resolved	Jul 1, 2022 to Jul 31, 2022
Interim Enhanced Surface Water Treatment Rule	Resolved	Jun 1, 2022 to Jun 30, 2022
Lead and Copper Rule	Resolved	Jan 1, 2022 to May 11, 2022
Revised Total Coliform Rule	Resolved	Dec 1, 2021 to Dec 31, 2021
Surface Water Treatment Rule	Resolved	Nov 1, 2021 to Nov 30, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Nov 1, 2021 to Nov 30, 2021
Revised Total Coliform Rule	Resolved	Sep 1, 2021 to Sep 30, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Aug 1, 2021 to Aug 31, 2021
Surface Water Treatment Rule	Resolved	Aug 1, 2021 to Aug 31, 2021
Surface Water Treatment Rule	Resolved	Jul 1, 2021 to Jul 31, 2021
Chlorine	Resolved	Jul 1, 2021 to Sep 30, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Jul 1, 2021 to Jul 31, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Jun 1, 2021 to Jun 30, 2021
Surface Water Treatment Rule	Resolved	Jun 1, 2021 to Jun 30, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	May 1, 2021 to May 31, 2021
Total Haloacetic Acids (HAA5)	Resolved	May 1, 2021 to Jul 31, 2021
TTHM	Resolved	May 1, 2021 to Jul 31, 2021
Surface Water Treatment Rule	Resolved	May 1, 2021 to May 31, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Apr 1, 2021 to Apr 30, 2021
Surface Water Treatment Rule	Resolved	Apr 1, 2021 to Apr 30, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Feb 1, 2021 to Feb 28, 2021
Surface Water Treatment Rule	Resolved	Feb 1, 2021 to Feb 28, 2021
Interim Enhanced Surface Water Treatment Rule	Resolved	Jan 1, 2021 to Jan 31, 2021
Surface Water Treatment Rule	Resolved	Jan 1, 2021 to Jan 31, 2021

City summary

What the indexed records say

Shaktoolik has 1 published ZIP profile across Nome 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 Shaktoolik

Open a ZIP for site-level provenance and measurements.

ZIP code

99771

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 Shaktoolik

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.