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City water profile

Presque Isle water quality

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

Median indexed hardness

76PPM

One indexed ZIP

Range 76.1–76.1 PPM

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

City summary

What the indexed records say

Presque Isle has 1 published ZIP profile across Aroostook County. The indexed median is 76 PPM, compared with 39 PPM across Maine.

Among the 110 Mainecities with an indexed median, Presque Isle ranks #32from 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
72.2 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

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

ZIP directory

Water reports in Presque Isle

Open a ZIP for site-level provenance and measurements.

ZIP code

04769

Moderately Hard

76.1 PPM

Nearest site
72.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Presque Isle Utilities District

PWSID ME0091310

Groundwater influenced by surface water
System population served
6,128
Last reported
May 13, 2026

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

Town And Country Apartments

PWSID ME0092359

Groundwater
System population served
136
Last reported
May 13, 2026

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

Pine Village Mhp

PWSID ME0006203

Groundwater
System population served
80
Last reported
May 13, 2026

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

Mcculley Commons Apartments

PWSID ME0092175

Groundwater
System population served
73
Last reported
May 13, 2026

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

Skyline Trailer Park

PWSID ME0092806

Groundwater
System population served
28
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 RuleME0092359Dec 30, 2025Resolved
CYANIDEME0006203Jul 1, 2025Archived
Consumer Confidence RuleME0092175Jul 1, 2024Resolved
Consumer Confidence RuleME0092359Jul 1, 2023Unaddressed
Lead and Copper RuleME0092359Dec 30, 2022Resolved
Public NoticeME0006203Sep 4, 2022Resolved
CYANIDEME0006203Jul 1, 2022Resolved · health-based
CYANIDEME0006203Apr 1, 2022Resolved · health-based
TTHMME0091310Oct 1, 2021Resolved
Total Haloacetic Acids (HAA5)ME0091310Oct 1, 2021Resolved

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 Presque Isle

Is the water hard?

The indexed city median is 76 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.