City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Milltown, Indiana.
Median indexed hardness
320PPM
2 indexed ZIPs
Range 320–320 PPM
City summary
Milltown has 2 published ZIP profiles across Harrison County and Crawford County. The indexed median is 320 PPM, compared with 313 PPM across Indiana.
Among the 386 Indianacities with an indexed median, Milltown ranks #192from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 PPM.
The 320–320 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Jun 12, 2019 to Nov 13, 2023.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID IN5213006
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
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.
| Record | System | Period | Status |
|---|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | IN5213006 | Sep 5, 2025 | Resolved · health-based |
Practical next steps
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Questions people ask
The indexed city median is 320 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.