F0/100
LEOMINSTER WATER DIVISION — Water Quality Report 2026
Serving 41,683 people · Massachusetts
Water Source
Surface Water
County
—
System ID
MA2153000
Violations
137
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.90 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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 LEOMINSTER WATER DIVISION
Is LEOMINSTER WATER DIVISION water safe to drink?
LEOMINSTER WATER DIVISION water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 137 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has LEOMINSTER WATER DIVISION detected?
70 contaminants were tested in LEOMINSTER WATER DIVISION's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does LEOMINSTER WATER DIVISION have any EPA violations?
Yes, LEOMINSTER WATER DIVISION has 137 EPA violation(s) on record, with the most recent in 2018. Violation types include MCL, MR, Other. 12 are health-based violations.
How many people does LEOMINSTER WATER DIVISION serve?
LEOMINSTER WATER DIVISION serves approximately 41,683 people, Massachusetts. The system provides water to 1 community: Leominster.
What type of water does LEOMINSTER WATER DIVISION provide?
LEOMINSTER WATER DIVISION sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MA2153000.
How does LEOMINSTER WATER DIVISION compare to other utilities in Massachusetts?
LEOMINSTER WATER DIVISION scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Massachusetts state page for a full comparison of water systems.