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City water profile

Whitewater water quality

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

Median indexed hardness

405PPM

One indexed ZIP

Range 405–405 PPM

State comparison
117 PPM above
State hardness rank
#40 of 479
Matched utilities
3
Active health records
0

City summary

What the indexed records say

Whitewater has 1 published ZIP profile across Walworth County. The indexed median is 405 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Whitewater ranks #40from 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.

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
22.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Aug 3, 2016 to Aug 8, 2024.

ZIP directory

Water reports in Whitewater

Open a ZIP for site-level provenance and measurements.

ZIP code

53190

Very Hard

405 PPM

Nearest site
22.2 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Whitewater Waterworks

PWSID WI2650056

Groundwater
System population served
14,000
Last reported
May 29, 2026

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

County Line Estates

PWSID WI1540135

Groundwater
System population served
240
Last reported
May 29, 2026

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

Wolfs Mobile Homes

PWSID WI1280126

Groundwater
System population served
40
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

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
Lead and Copper RuleWI1540135Jan 1, 2025Resolved
Revised Total Coliform RuleWI2650056Sep 1, 2024Resolved
NitrateWI2650056Jan 1, 2024Resolved
E. COLIWI1280126Nov 8, 2023Resolved
E. COLIWI1280126Sep 15, 2023Resolved
Public NoticeWI1280126Sep 15, 2023Resolved
E. COLIWI1280126Jul 13, 2023Resolved
Consumer Confidence RuleWI1280126Jul 1, 2023Resolved
Consumer Confidence RuleWI1280126Jul 1, 2023Resolved
Revised Total Coliform RuleWI1280126Feb 1, 2022Resolved

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 Whitewater

Is the water hard?

The indexed city median is 405 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.