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City water profile

Gratiot water quality

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

Median indexed hardness

301PPM

One indexed ZIP

Range 301–301 PPM

State comparison
13 PPM above
State hardness rank
#186 of 479
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Gratiot has 1 published ZIP profile across Lafayette County. The indexed median is 301 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Gratiot ranks #186from 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
23.6 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 Gratiot

Open a ZIP for site-level provenance and measurements.

ZIP code

53541

Very Hard

301 PPM

Nearest site
23.6 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Gratiot Waterworks

PWSID WI1330074

Groundwater
System population served
224
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
Revised Total Coliform RuleWI1330074Aug 1, 2025Resolved
Lead and Copper RuleWI1330074Jun 1, 2023Resolved
Groundwater RuleWI1330074Mar 1, 2023Resolved · health-based
Public NoticeWI1330074Mar 1, 2023Resolved
EndrinWI1330074Jan 1, 2023Resolved
HEXACHLOROBENZENEWI1330074Jan 1, 2023Resolved
2,4,5-TPWI1330074Jan 1, 2023Resolved
HeptachlorWI1330074Jan 1, 2023Resolved
AtrazineWI1330074Jan 1, 2023Resolved
MethoxychlorWI1330074Jan 1, 2023Resolved

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 Gratiot

Is the water hard?

The indexed city median is 301 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.