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City water profile

Nunapitchuk water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Nunapitchuk, Alaska.

Median indexed hardness

196PPM

One indexed ZIP

Range 196–196 PPM

State comparison
113 PPM above
State hardness rank
#4 of 17
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Nunapitchuk has 1 published ZIP profile across Bethel Census Area. The indexed median is 196 PPM, compared with 83 PPM across Alaska.

Among the 17 Alaskacities with an indexed median, Nunapitchuk ranks #4from highest to lowest. Across all 149 state ZIP profiles, available estimates run from 36.7to 199 PPM.

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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

1 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
74.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Feb 24, 2016 to Jan 21, 2026.

ZIP directory

Water reports in Nunapitchuk

Open a ZIP for site-level provenance and measurements.

ZIP code

99641

Very Hard

196 PPM

Nearest site
74.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Nunapitchuk Water System

PWSID AK2260820

Groundwater
System population served
496
Last reported
Jun 19, 2026

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

Compliance history

What EPA records show

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.

RecordSystemPeriodStatus
ChlorineAK2260820Dec 1, 2025Resolved
Revised Total Coliform RuleAK2260820Dec 1, 2025Resolved
Consumer Confidence RuleAK2260820Jul 1, 2025Resolved
TTHMAK2260820Jul 1, 2025Resolved
Total Haloacetic Acids (HAA5)AK2260820Jul 1, 2025Resolved
Total Haloacetic Acids (HAA5)AK2260820Apr 1, 2025Resolved
TTHMAK2260820Apr 1, 2025Resolved
Lead and Copper RuleAK2260820Nov 30, 2024Resolved
Revised Total Coliform RuleAK2260820Oct 1, 2024Resolved
ChlorineAK2260820Oct 1, 2024Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Nunapitchuk

Is the water hard?

The indexed city median is 196 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

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.