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City water profile

Rolling Prairie water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Rolling Prairie, Indiana.

Median indexed hardness

257PPM

One indexed ZIP

Range 256.5–256.5 PPM

State comparison
56 PPM below
State hardness rank
#340 of 386
Matched utilities
1
Active health records
1

City summary

What the indexed records say

Rolling Prairie has 1 published ZIP profile across Laporte County. The indexed median is 257 PPM, compared with 313 PPM across Indiana.

Among the 386 Indianacities with an indexed median, Rolling Prairie ranks #340from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 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
20.1 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Aug 7, 2017 to May 13, 2026.

ZIP directory

Water reports in Rolling Prairie

Open a ZIP for site-level provenance and measurements.

ZIP code

46371

Very Hard

256.5 PPM

Nearest site
20.1 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Sacred Heart Apostolic School

PWSID IN5246006

Groundwater
System population served
46
Last reported
Jun 30, 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 RuleIN5246006Aug 20, 2025Unaddressed · 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 Rolling Prairie

Is the water hard?

The indexed city median is 257 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.