City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Avondale, Arizona.
Median indexed hardness
97PPM
3 indexed ZIPs
Range 97–97 PPM
City summary
Avondale has 3 published ZIP profiles across Maricopa County. The indexed median is 97 PPM, compared with 241 PPM across Arizona.
Among the 133 Arizonacities with an indexed median, Avondale ranks #128from highest to lowest. Across all 285 state ZIP profiles, available estimates run from 66.4to 1250 PPM.
The 97–97 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
3 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Jan 4, 2016 to Dec 18, 2024.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID AZ0407088
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 |
|---|---|---|---|
| Public Notice | AZ0407088 | May 18, 2025 | Resolved |
| Chlorine | AZ0407088 | Jan 1, 2024 | Resolved |
| Chlorine | AZ0407088 | Oct 1, 2023 | Resolved |
| Revised Total Coliform Rule | AZ0407088 | Aug 1, 2022 | Resolved |
Practical next steps
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Questions people ask
The indexed city median is 97 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.