F0/100
MEDFIELD WATER DEPT. — Water Quality Report 2026
Serving 12,894 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA2175000
Violations
85
Contaminant Test Results
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.007 µg/L | 0.004 µg/L | Over Limit |
PFOS | 0.007 µg/L | 0.004 µg/L | Over Limit |
1,4-dioxane | 1.10 µg/L | — | Above Goal |
Lead (90th percentile) | 0.007 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: September 1, 2022 – September 9, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
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 MEDFIELD WATER DEPT.
Is MEDFIELD WATER DEPT. water safe to drink?
MEDFIELD WATER DEPT. water receives a grade of F (0/100), which is considered failing. 2 contaminant(s) exceed EPA legal limits and 85 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MEDFIELD WATER DEPT. detected?
66 contaminants were tested in MEDFIELD WATER DEPT.'s water. Notable contaminants include PFOA, PFOS, Lead (90th percentile), 1,4-dioxane. 2 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).
Does MEDFIELD WATER DEPT. have any EPA violations?
Yes, MEDFIELD WATER DEPT. has 85 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, MCL, MR. 14 are health-based violations.
How many people does MEDFIELD WATER DEPT. serve?
MEDFIELD WATER DEPT. serves approximately 12,894 people, Massachusetts. The system provides water to 1 community: Medfield.
What type of water does MEDFIELD WATER DEPT. provide?
MEDFIELD WATER DEPT. sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA2175000.
How does MEDFIELD WATER DEPT. compare to other utilities in Massachusetts?
MEDFIELD WATER DEPT. 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.