B65/100
TEWKSBURY WATER DEPARTMENT — Water Quality Report 2026
Serving 31,342 people · Massachusetts
Water Source
Surface Water
County
—
System ID
MA3295000
Violations
13
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 | 610.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
2
Health-Related
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 1, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 TEWKSBURY WATER DEPARTMENT
Is TEWKSBURY WATER DEPARTMENT water safe to drink?
TEWKSBURY WATER DEPARTMENT water receives a grade of B (65/100), which is considered good. Out of 69 contaminants tested, 1 exceed EPA legal limits. 3 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has TEWKSBURY WATER DEPARTMENT detected?
69 contaminants were tested in TEWKSBURY WATER DEPARTMENT's water. Notable contaminants include PFOA, Lead (90th percentile), chlorate. 1 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does TEWKSBURY WATER DEPARTMENT have any EPA violations?
Yes, TEWKSBURY WATER DEPARTMENT has 13 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, MCL. 2 are health-based violations.
How many people does TEWKSBURY WATER DEPARTMENT serve?
TEWKSBURY WATER DEPARTMENT serves approximately 31,342 people, Massachusetts. The system provides water to 1 community: Tewksbury.
What type of water does TEWKSBURY WATER DEPARTMENT provide?
TEWKSBURY WATER DEPARTMENT 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 MA3295000.
How does TEWKSBURY WATER DEPARTMENT compare to other utilities in Massachusetts?
TEWKSBURY WATER DEPARTMENT scores 65/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Massachusetts state page for a full comparison of water systems.