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City water profile

Clay water quality

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

Median indexed hardness

116PPM

2 indexed ZIPs

Range 115–116 PPM

State comparison
25 PPM below
State hardness rank
#144 of 179
Matched utilities
2
Active health records
1

City summary

What the indexed records say

Clay has 2 published ZIP profiles across Clay County. The indexed median is 116 PPM, compared with 141 PPM across West Virginia.

Among the 179 West Virginiacities with an indexed median, Clay ranks #144from highest to lowest. Across all 219 state ZIP profiles, available estimates run from 85.5to 265 PPM.

The 115–116 PPM range shows how much the available ZIP estimates vary within the city label. 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 hard2 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
28.3 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 0Low: 2

Observation window: Nov 4, 2019 to Oct 28, 2024.

ZIP directory

Water reports in Clay

Open a ZIP for site-level provenance and measurements.

ZIP code

25043

Moderately Hard

115 PPM

Nearest site
25.2 mi
Confidence
Low

View full ZIP evidence →

ZIP code

25133

Moderately Hard

116 PPM

Nearest site
28.3 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Clay Water Dept

PWSID WV3300801

Surface water
System population served
1,232
Last reported
May 19, 2026

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

Clay Co P S D - Ivydale

PWSID WV3300809

Surface water
System population served
729
Last reported
May 19, 2026

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

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Public NoticeWV3300801Feb 12, 2026Unaddressed
Public NoticeWV3300801Feb 12, 2026Unaddressed
Public NoticeWV3300801Feb 12, 2026Unaddressed
Long Term 2 Enhanced Surface Water Treatment RuleWV3300801Jan 1, 2026Unaddressed · health-based
Interim Enhanced Surface Water Treatment RuleWV3300801Feb 1, 2025Archived · health-based
1,2,4-TrichlorobenzeneWV3300801Jan 1, 2025Archived
cis-1,2-DichloroethyleneWV3300801Jan 1, 2025Archived
o-DichlorobenzeneWV3300801Jan 1, 2025Archived
Vinyl chlorideWV3300801Jan 1, 2025Archived
1,1-DichloroethyleneWV3300801Jan 1, 2025Archived

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 Clay

Is the water hard?

The indexed city median is 116 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.