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City water profile

Cassville water quality

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

Median indexed hardness

263PPM

One indexed ZIP

Range 263–263 PPM

State comparison
25 PPM below
State hardness rank
#342 of 479
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Cassville has 1 published ZIP profile across Grant County. The indexed median is 263 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Cassville ranks #342from 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
32.9 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Feb 9, 2016 to Mar 3, 2026.

ZIP directory

Water reports in Cassville

Open a ZIP for site-level provenance and measurements.

ZIP code

53806

Very Hard

263 PPM

Nearest site
32.9 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Cassville Waterworks

PWSID WI1220091

Groundwater
System population served
777
Last reported
May 29, 2026

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

Bluffside Court

PWSID WI1220090

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 RULE REVISIONSWI1220090Oct 17, 2024Resolved
Public NoticeWI1220090Oct 17, 2024Unaddressed
LEAD AND COPPER RULE REVISIONSWI1220090Oct 17, 2024Resolved · health-based
Public NoticeWI1220090Oct 17, 2024Unaddressed
Lead and Copper RuleWI1220091Jun 1, 2023Resolved
Lead and Copper RuleWI1220090Jan 1, 2022Resolved
Lead and Copper RuleWI1220091Jan 1, 2012Unaddressed

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 Cassville

Is the water hard?

The indexed city median is 263 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.