City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Grand Island, Nebraska.
Median indexed hardness
308PPM
2 indexed ZIPs
Range 306–309 PPM
City summary
Grand Island has 2 published ZIP profiles across Hall County. The indexed median is 308 PPM, compared with 309 PPM across Nebraska.
Among the 409 Nebraskacities with an indexed median, Grand Island ranks #255from highest to lowest. Across all 476 state ZIP profiles, available estimates run from 72.3to 1245 PPM.
The 306–309 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: Oct 27, 2016 to Sep 9, 2025.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID NE3107902
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 |
|---|---|---|---|
| Combined Uranium | NE3107902 | Oct 1, 2025 | Archived · health-based |
| Combined Uranium | NE3107902 | Jul 1, 2025 | Archived · health-based |
Practical next steps
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Questions people ask
The indexed city median is 308 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.