TapSafetyReport
B71/100

LISBON WATER DEPARTMENT — Water Quality Report 2026

Serving 6,643 people · Maine

Water Source
Groundwater
County
—
System ID
ME0090870
Violations
14

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

5

Violations (last 5yr)

2

Unresolved

0

Health-Related

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: October 7, 2024 – June 26, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 31, 2024 – July 1, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – June 30, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2022 – October 31, 2022Rule: Total Coliform RuleEnforcement: 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 LISBON WATER DEPARTMENT

Is LISBON WATER DEPARTMENT water safe to drink?

LISBON WATER DEPARTMENT water receives a grade of B (71/100), which is considered good. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.

What contaminants has LISBON WATER DEPARTMENT detected?

31 contaminants were tested in LISBON WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does LISBON WATER DEPARTMENT have any EPA violations?

Yes, LISBON WATER DEPARTMENT has 14 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MON. 3 are health-based violations.

How many people does LISBON WATER DEPARTMENT serve?

LISBON WATER DEPARTMENT serves approximately 6,643 people, Maine. The system provides water to 1 community: Lisbon.

What type of water does LISBON WATER DEPARTMENT provide?

LISBON WATER DEPARTMENT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is ME0090870.

How does LISBON WATER DEPARTMENT compare to other utilities in Maine?

LISBON WATER DEPARTMENT scores 71/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Maine state page for a full comparison of water systems.

Cities Served

Lisbon