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City water profile

Sheldon water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Sheldon, Wisconsin.

Median indexed hardness

191PPM

One indexed ZIP

Range 191–191 PPM

State comparison
97 PPM below
State hardness rank
#445 of 479
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Sheldon has 1 published ZIP profile across Taylor County. The indexed median is 191 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Sheldon ranks #445from highest to lowest. Across all 556 state ZIP profiles, available estimates run from 41.3to 467 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
68.3 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Aug 1, 2018 to Aug 22, 2018.

ZIP directory

Water reports in Sheldon

Open a ZIP for site-level provenance and measurements.

ZIP code

54766

Very Hard

191 PPM

Nearest site
68.3 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Sheldon Water Utility

PWSID WI8550278

Groundwater
System population served
265
Last reported
May 29, 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
Groundwater RuleWI8550278Jun 2, 2026Unaddressed · health-based
Revised Total Coliform RuleWI8550278Sep 1, 2025Resolved
Groundwater RuleWI8550278Jul 2, 2025Resolved · health-based
Public NoticeWI8550278Jul 2, 2025Resolved
Revised Total Coliform RuleWI8550278May 1, 2025Resolved
Total Haloacetic Acids (HAA5)WI8550278Jan 1, 2025Resolved
TTHMWI8550278Jan 1, 2025Resolved
Revised Total Coliform RuleWI8550278Sep 21, 2024Resolved
Revised Total Coliform RuleWI8550278Sep 21, 2024Resolved · health-based
Total Haloacetic Acids (HAA5)WI8550278Jul 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 Sheldon

Is the water hard?

The indexed city median is 191 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.