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City water profile

Mason water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Mason, West Virginia.

Median indexed hardness

110PPM

One indexed ZIP

Range 110–110 PPM

State comparison
31 PPM below
State hardness rank
#154 of 179
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Mason has 1 published ZIP profile across Mason County. The indexed median is 110 PPM, compared with 141 PPM across West Virginia.

Among the 179 West Virginiacities with an indexed median, Mason ranks #154from highest to lowest. Across all 219 state ZIP profiles, available estimates run from 85.5to 265 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.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
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
12.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jun 1, 2016 to Aug 17, 2023.

ZIP directory

Water reports in Mason

Open a ZIP for site-level provenance and measurements.

ZIP code

25260

Moderately Hard

110 PPM

Nearest site
12.6 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Mason Water Dept

PWSID WV3302708

Groundwater
System population served
1,679
Last reported
May 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
Public NoticeWV3302708Nov 15, 2025Unaddressed
Groundwater RuleWV3302708Oct 1, 2025Archived
Lead and Copper RuleWV3302708Oct 1, 2025Unaddressed
Public NoticeWV3302708Aug 14, 2025Unaddressed
Consumer Confidence RuleWV3302708Jul 1, 2025Resolved
Public NoticeWV3302708Jun 15, 2025Unaddressed
ChlorineWV3302708Apr 1, 2025Resolved
NitrateWV3302708Apr 1, 2025Archived
ChlorineWV3302708Mar 1, 2025Resolved
Consumer Confidence RuleWV3302708Jul 1, 2024Unaddressed

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 Mason

Is the water hard?

The indexed city median is 110 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.