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City water profile

Berwick water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Berwick, Maine.

Median indexed hardness

50PPM

One indexed ZIP

Range 50.1–50.1 PPM

State comparison
11 PPM above
State hardness rank
#47 of 110
Matched utilities
3
Active health records
0

City summary

What the indexed records say

Berwick has 1 published ZIP profile across York County. The indexed median is 50 PPM, compared with 39 PPM across Maine.

Among the 110 Mainecities with an indexed median, Berwick ranks #47from highest to lowest. Across all 131 state ZIP profiles, available estimates run from 3.2to 94.5 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft1 ZIP
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
11 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Jan 13, 2016 to Sep 25, 2023.

ZIP directory

Water reports in Berwick

Open a ZIP for site-level provenance and measurements.

ZIP code

03901

Soft

50.1 PPM

Nearest site
11 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

South Berwick Water District

PWSID ME0091470

Groundwater
System population served
3,722
Last reported
May 13, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Berwick Water Department

PWSID ME0090150

Surface water
System population served
2,845
Last reported
May 13, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Sunrise Hill Estates

PWSID ME0095525

Groundwater
System population served
100
Last reported
May 13, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

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.

RecordSystemPeriodStatus
Stage 1 Disinfectants and Disinfection Byproducts RuleME0090150Oct 4, 2022Resolved · health-based
Total Haloacetic Acids (HAA5)ME0090150Oct 1, 2022Resolved
TTHMME0090150Oct 1, 2022Resolved
Consumer Confidence RuleME0090150Jul 1, 2022Resolved

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Berwick

Is the water hard?

The indexed city median is 50 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.