City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Conway, New Hampshire.
Median indexed hardness
41PPM
2 indexed ZIPs
Range 39.2–42 PPM
City summary
Conway has 2 published ZIP profiles across Carroll County. The indexed median is 41 PPM, compared with 58 PPM across New Hampshire.
Among the 74 New Hampshirecities with an indexed median, Conway ranks #65from highest to lowest. Across all 90 state ZIP profiles, available estimates run from 16to 102 PPM.
The 39.2–42 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 13, 2016 to Jul 12, 2023.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID NH0511030
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0511010
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512010
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512240
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0513100
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512250
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512270
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512130
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512080
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NH0512030
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 |
|---|---|---|---|
| Lead and Copper Rule | NH0512180 | Jan 2, 2026 | Resolved |
| Lead and Copper Rule | NH0512110 | Jan 1, 2026 | Resolved |
| Lead and Copper Rule | NH0512060 | Oct 1, 2024 | Resolved |
| Lead and Copper Rule | NH0512200 | Oct 1, 2024 | Resolved |
| Revised Total Coliform Rule | NH0512240 | Sep 15, 2024 | Resolved · health-based |
| Revised Total Coliform Rule | NH0512240 | Sep 15, 2024 | Resolved |
| Revised Total Coliform Rule | NH0512240 | Nov 6, 2023 | Resolved · health-based |
| Revised Total Coliform Rule | NH0512240 | Nov 6, 2023 | Resolved |
| Consumer Confidence Rule | NH0512200 | Jul 1, 2023 | Resolved |
| 1,2,4-Trichlorobenzene | NH0511030 | Jan 1, 2023 | Resolved |
Practical next steps
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Questions people ask
The indexed city median is 41 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.