City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Andover, Massachusetts.
Median indexed hardness
46PPM
2 indexed ZIPs
Range 45.7–45.7 PPM
City summary
Andover has 2 published ZIP profiles across Essex County. The indexed median is 46 PPM, compared with 49 PPM across Massachusetts.
Among the 302 Massachusettscities with an indexed median, Andover ranks #168from highest to lowest. Across all 328 state ZIP profiles, available estimates run from 24.3to 128 PPM.
The 45.7–45.7 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: Jan 4, 2016 to Jun 8, 2026.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID MA3009000
EPA SDWIS explicitly lists this ZIP in the system's served geography.
PWSID MA3210000
EPA SDWIS explicitly lists this ZIP in the system's served geography.
Compliance history
1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| Lead and Copper Rule | MA3009000 | Jan 1, 2022 | Archived · health-based |
| Lead and Copper Rule | MA3009000 | Nov 1, 2021 | Addressed · health-based |
Practical next steps
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Questions people ask
The indexed city median is 46 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.