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City water profile

Stevenson water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Stevenson, Washington.

Median indexed hardness

29PPM

One indexed ZIP

Range 28.8–28.8 PPM

State comparison
75 PPM below
State hardness rank
#128 of 133
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Stevenson has 1 published ZIP profile across Skamania County. The indexed median is 29 PPM, compared with 104 PPM across Washington.

Among the 133 Washingtoncities with an indexed median, Stevenson ranks #128from highest to lowest. Across all 189 state ZIP profiles, available estimates run from 20.6to 238 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

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

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
32.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Jan 5, 2016 to May 19, 2026.

ZIP directory

Water reports in Stevenson

Open a ZIP for site-level provenance and measurements.

ZIP code

98648

Soft

28.8 PPM

Nearest site
32.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Stevenson Water Dept

PWSID WA5384250

Surface water
System population served
4,702
Last reported
Jun 19, 2026

A municipal system, in-state city, and served county all agree with this Census 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
Revised Total Coliform RuleWA5384250Jan 1, 2025Resolved
Consumer Confidence RuleWA5384250Jul 1, 2023Resolved
TTHMWA5384250Jul 1, 2021Resolved
Total Haloacetic Acids (HAA5)WA5384250Jul 1, 2021Resolved
TTHMWA5384250Apr 1, 2021Resolved
Total Haloacetic Acids (HAA5)WA5384250Apr 1, 2021Resolved
TTHMWA5384250Jan 1, 2021Resolved
Total Haloacetic Acids (HAA5)WA5384250Jan 1, 2021Resolved

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 Stevenson

Is the water hard?

The indexed city median is 29 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.