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City water profile

Mansfield water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Mansfield, Ohio.

Median indexed hardness

170PPM

6 indexed ZIPs

Range 158–175 PPM

State comparison
56 PPM below
State hardness rank
#88 of 119
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Mansfield has 6 published ZIP profiles across Richland County. The indexed median is 170 PPM, compared with 226 PPM across Ohio.

Among the 119 Ohiocities with an indexed median, Mansfield ranks #88from highest to lowest. Across all 162 state ZIP profiles, available estimates run from 77.2to 387 PPM.

The 158–175 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 hard0 ZIPs
Hard6 ZIPs
Very hard0 ZIPs

6 of 6 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
37.4 miles
Profiles with evidence
6/6

Confidence labels

High: 0Moderate: 0Low: 6

Observation window: Mar 14, 2016 to Dec 4, 2024.

ZIP directory

Water reports in Mansfield

Open a ZIP for site-level provenance and measurements.

ZIP code

44901

Hard

169.5 PPM

Nearest site
37.4 mi
Confidence
Low

View full ZIP evidence →

ZIP code

44902

Hard

169.5 PPM

Nearest site
37.8 mi
Confidence
Low

View full ZIP evidence →

ZIP code

44903

Hard

169.5 PPM

Nearest site
36.5 mi
Confidence
Low

View full ZIP evidence →

ZIP code

44905

Hard

158 PPM

Nearest site
36.8 mi
Confidence
Low

View full ZIP evidence →

ZIP code

44906

Hard

169.5 PPM

Nearest site
37.1 mi
Confidence
Low

View full ZIP evidence →

ZIP code

44907

Hard

175 PPM

Nearest site
39.9 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Mansfield City

PWSID OH7002914

Surface water
System population served
51,000
Last reported
May 15, 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
Long Term 2 Enhanced Surface Water Treatment RuleOH7002914Dec 1, 2025Resolved · health-based
LEAD AND COPPER RULE REVISIONSOH7002914Jul 2, 2025Resolved
Long Term 2 Enhanced Surface Water Treatment RuleOH7002914May 1, 2025Resolved · health-based
Interim Enhanced Surface Water Treatment RuleOH7002914Jan 1, 2025Resolved · health-based
LEAD AND COPPER RULE REVISIONSOH7002914Oct 17, 2024Resolved · health-based
LEAD AND COPPER RULE REVISIONSOH7002914Oct 17, 2024Resolved
Public NoticeOH7002914Aug 21, 2023Unaddressed
Lead and Copper RuleOH7002914Jan 1, 2023Resolved · health-based

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 Mansfield

Is the water hard?

The indexed city median is 170 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.