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City water profile

Water hardness in Caribou

Find official utility reports, understand hardness, and check the water system serving your home in Caribou, Maine.

Utility-reported hardness

Not yet available

Check your provider and source →
State comparison
Unavailable
Evidence comparison rank
—
Matched utilities
5
Active health records
0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Caribou Utilities District

ME0090320 · Groundwater · 3,943 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0 mg/L
Action level
0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (2)
Imported violation history for Caribou Utilities District
RuleStatusPeriod
Consumer Confidence RuleResolvedJul 1, 2023 to May 29, 2024
DiquatResolvedJan 1, 2021 to Dec 31, 2023

Riverside Court

ME0002429 · Groundwater · 100 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0 mg/L
Action level
0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Caribou Stream Mobile Home Pk

ME0002439 · Groundwater · 95 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0012 mg/L
Action level
0.015 mg/L

8% of the listed benchmark

Monitoring period: Jan 1, 2022 to Dec 31, 2024

Violation history (6)
Imported violation history for Caribou Stream Mobile Home Pk
RuleStatusPeriod
Revised Total Coliform RuleArchivedMar 1, 2026 to Mar 31, 2026
Revised Total Coliform RuleResolvedJan 1, 2026 to Jan 31, 2026
Revised Total Coliform RuleResolvedDec 1, 2025 to Dec 31, 2025
Revised Total Coliform RuleResolvedNov 1, 2025 to Jan 15, 2025
Revised Total Coliform RuleResolvedSep 1, 2025 to Sep 30, 2025
Consumer Confidence RuleUnaddressedOct 1, 2002

Del-Wood Trailer Park

ME0002456 · Groundwater · 90 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (2)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0022 mg/L
Action level
0.015 mg/L

15% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Copper (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level
Reported level
2.23 mg/L
Action level
1.3 mg/L

172% of the listed benchmark

Monitoring period: Jul 1, 1994 to Dec 31, 1994

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

A Place For All Seasons

ME0092373 · Groundwater · 90 people served system-wide

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

No active health-based record in this imported snapshot

Find this utility’s official report →
Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level
Reported level
0.0018 mg/L
Action level
0.015 mg/L

12% of the listed benchmark

Monitoring period: Jan 1, 2021 to Dec 31, 2023

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

City summary

What the indexed records say

Caribou has 1 published ZIP profile across Aroostook County. No qualifying nearby hardness observation is available for the city.

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

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard0 ZIPs

0 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
— miles
Profiles with evidence
0/1

Confidence labels

High: 0Moderate: 0Low: 0

Observation window: unavailable to unavailable.

ZIP directory

Water reports in Caribou

Open a ZIP for site-level provenance and measurements.

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. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Caribou

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

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.