D25/100
BILLERICA WATER WORKS — Water Quality Report 2026
Serving 42,119 people · Massachusetts
Water Source
Surface Water
County
—
System ID
MA3031000
Violations
33
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.005 µg/L | 0.004 µg/L | Over Limit |
chlorate | 480.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
2
Unresolved
3
Health-Related
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2023 – June 30, 2023Rule: Stage 1 DBPREnforcement: Formal — state order issued
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2023 – March 31, 2023Rule: Stage 1 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
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 BILLERICA WATER WORKS
Is BILLERICA WATER WORKS water safe to drink?
BILLERICA WATER WORKS water receives a grade of D (25/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 33 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has BILLERICA WATER WORKS detected?
76 contaminants were tested in BILLERICA WATER WORKS's water. Notable contaminants include PFOA, Lead (90th percentile), chlorate. 1 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does BILLERICA WATER WORKS have any EPA violations?
Yes, BILLERICA WATER WORKS has 33 EPA violation(s) on record, with the most recent in 2023. Violation types include MCL, MR. 7 are health-based violations.
How many people does BILLERICA WATER WORKS serve?
BILLERICA WATER WORKS serves approximately 42,119 people, Massachusetts. The system provides water to 1 community: Billerica.
What type of water does BILLERICA WATER WORKS provide?
BILLERICA WATER WORKS 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 MA3031000.
How does BILLERICA WATER WORKS compare to other utilities in Massachusetts?
BILLERICA WATER WORKS scores 25/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our Massachusetts state page for a full comparison of water systems.