C45/100
MEDFORD WATER DEPT. (MWRA) — Water Quality Report 2026
Serving 61,700 people · Massachusetts
Water Source
Purchased Surface Water
County
—
System ID
MA3176000
Violations
11
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.015 mg/L | 0.015 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
2
Health-Related
TIER 2Resolved
Failed to meet Level 1 treatment technique trigger
When: November 1, 2023Rule: Ground Water RuleEnforcement: Formal — state order issued
TIER 2Resolved
Failed to meet Level 1 treatment technique trigger
When: July 1, 2023 – June 1, 2024Rule: Ground Water RuleEnforcement: 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 MEDFORD WATER DEPT. (MWRA)
Is MEDFORD WATER DEPT. (MWRA) water safe to drink?
MEDFORD WATER DEPT. (MWRA) water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 11 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MEDFORD WATER DEPT. (MWRA) detected?
76 contaminants were tested in MEDFORD WATER DEPT. (MWRA)'s water. Notable contaminants include Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does MEDFORD WATER DEPT. (MWRA) have any EPA violations?
Yes, MEDFORD WATER DEPT. (MWRA) has 11 EPA violation(s) on record, with the most recent in 2023. Violation types include TT, MR, MCL. 9 are health-based violations.
How many people does MEDFORD WATER DEPT. (MWRA) serve?
MEDFORD WATER DEPT. (MWRA) serves approximately 61,700 people, Massachusetts. The system provides water to 1 community: Medford.
What type of water does MEDFORD WATER DEPT. (MWRA) provide?
MEDFORD WATER DEPT. (MWRA) sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is MA3176000.
How does MEDFORD WATER DEPT. (MWRA) compare to other utilities in Massachusetts?
MEDFORD WATER DEPT. (MWRA) scores 45/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Massachusetts state page for a full comparison of water systems.