City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Klawock, Alaska.
Median indexed hardness
—
One indexed ZIP
Range —–— PPM
City summary
Klawock has 1 published ZIP profile across Prince Of Wales-Hyder 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
0 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: unavailable to unavailable.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID AK2120169
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | AK2120169 | Jan 1, 2026 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Oct 1, 2025 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Jul 1, 2025 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Apr 1, 2025 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Jan 1, 2025 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Oct 1, 2024 | Archived · health-based |
| Total Haloacetic Acids (HAA5) | AK2120169 | Jul 1, 2024 | Archived · health-based |
| Surface Water Treatment Rule | AK2120169 | Apr 1, 2024 | Resolved |
| Total Haloacetic Acids (HAA5) | AK2120169 | Apr 1, 2024 | Archived · health-based |
| Interim Enhanced Surface Water Treatment Rule | AK2120169 | Apr 1, 2024 | Resolved |
Practical next steps
Continue comparing
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Prince Of Wales-Hyder Census Area
44 PPM median
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Prince Of Wales-Hyder Census Area
59 PPM median
Thorne Bay
Prince Of Wales-Hyder Census Area
44 PPM median
Hydaburg
Prince Of Wales-Hyder Census Area
— No median
Port Alexander
Prince Of Wales-Hyder Census Area
— No median
Anchorage
Anchorage Municipality
83 PPM median
Questions people ask
The index does not have a qualifying hardness estimate for this city.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.