D22/100
CARIBOU UTILITIES DISTRICT — Water Quality Report 2026
Serving 3,943 people · Maine
Water Source
Groundwater
County
—
System ID
ME0090320
Violations
18
Contaminant Test Results
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – May 29, 2024Enforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About CARIBOU UTILITIES DISTRICT
Is CARIBOU UTILITIES DISTRICT water safe to drink?
CARIBOU UTILITIES DISTRICT water receives a grade of D (22/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 18 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CARIBOU UTILITIES DISTRICT detected?
31 contaminants were tested in CARIBOU UTILITIES DISTRICT's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CARIBOU UTILITIES DISTRICT have any EPA violations?
Yes, CARIBOU UTILITIES DISTRICT has 18 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MR, MCL. 15 are health-based violations.
How many people does CARIBOU UTILITIES DISTRICT serve?
CARIBOU UTILITIES DISTRICT serves approximately 3,943 people, Maine. The system provides water to 1 community: Caribou.
What type of water does CARIBOU UTILITIES DISTRICT provide?
CARIBOU UTILITIES DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is ME0090320.
How does CARIBOU UTILITIES DISTRICT compare to other utilities in Maine?
CARIBOU UTILITIES DISTRICT scores 22/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Maine state page for a full comparison of water systems.