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City water profile

Winter Harbor water quality

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

Median indexed hardness

95PPM

One indexed ZIP

Range 94.5–94.5 PPM

State comparison
56 PPM above
State hardness rank
#5 of 110
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Winter Harbor has 1 published ZIP profile across Hancock County. The indexed median is 95 PPM, compared with 39 PPM across Maine.

Among the 110 Mainecities with an indexed median, Winter Harbor ranks #5from 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. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard1 ZIP
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
69.7 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Oct 11, 2023 to Oct 11, 2023.

ZIP directory

Water reports in Winter Harbor

Open a ZIP for site-level provenance and measurements.

ZIP code

04693

Moderately Hard

94.5 PPM

Nearest site
69.7 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Winter Harbor Water District

PWSID ME0091630

Groundwater
System population served
700
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
Lead and Copper RuleME0091630Dec 30, 2023Resolved
Consumer Confidence RuleME0091630Jul 1, 2023Unaddressed
Consumer Confidence RuleME0091630Jul 1, 2022Unaddressed
Consumer Confidence RuleME0091630Jul 1, 2021Unaddressed

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 Winter Harbor

Is the water hard?

The indexed city median is 95 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.