F0/100
MEDWAY WATER DEPARTMENT — Water Quality Report 2026
Serving 13,115 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA2177000
Violations
239
Contaminant Test Results
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.16 mg/L | 1.30 mg/L | Over Limit |
PFOA | 0.006 µg/L | 0.004 µg/L | Over Limit |
chlorate | 400.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2017.
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 MEDWAY WATER DEPARTMENT
Is MEDWAY WATER DEPARTMENT water safe to drink?
MEDWAY WATER DEPARTMENT water receives a grade of F (0/100), which is considered failing. 2 contaminant(s) exceed EPA legal limits and 239 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MEDWAY WATER DEPARTMENT detected?
67 contaminants were tested in MEDWAY WATER DEPARTMENT's water. Notable contaminants include Copper (90th percentile), PFOA, chlorate. 2 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).
Does MEDWAY WATER DEPARTMENT have any EPA violations?
Yes, MEDWAY WATER DEPARTMENT has 239 EPA violation(s) on record, with the most recent in 2017. Violation types include Other, MCL, MR. 14 are health-based violations.
How many people does MEDWAY WATER DEPARTMENT serve?
MEDWAY WATER DEPARTMENT serves approximately 13,115 people, Massachusetts. The system provides water to 1 community: Medway.
What type of water does MEDWAY WATER DEPARTMENT provide?
MEDWAY WATER DEPARTMENT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA2177000.
How does MEDWAY WATER DEPARTMENT compare to other utilities in Massachusetts?
MEDWAY WATER DEPARTMENT 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.