D34/100
MANSFIELD WATER DIVISION — Water Quality Report 2026
Serving 23,289 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA4167000
Violations
20
Contaminant Test Results
4 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.006 µg/L | 0.004 µg/L | Over Limit |
PFOA | 0.004 µg/L | 0.004 µg/L | Over Limit |
chlorate | 380.00 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 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 30, 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 MANSFIELD WATER DIVISION
Is MANSFIELD WATER DIVISION water safe to drink?
MANSFIELD WATER DIVISION water receives a grade of D (34/100), which is considered poor. 2 contaminant(s) exceed EPA legal limits and 20 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MANSFIELD WATER DIVISION detected?
69 contaminants were tested in MANSFIELD WATER DIVISION's water. Notable contaminants include PFOS, PFOA, Lead (90th percentile), chlorate. 2 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).
Does MANSFIELD WATER DIVISION have any EPA violations?
Yes, MANSFIELD WATER DIVISION has 20 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, Other, MCL. 6 are health-based violations.
How many people does MANSFIELD WATER DIVISION serve?
MANSFIELD WATER DIVISION serves approximately 23,289 people, Massachusetts. The system provides water to 1 community: Mansfield.
What type of water does MANSFIELD WATER DIVISION provide?
MANSFIELD WATER DIVISION sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA4167000.
How does MANSFIELD WATER DIVISION compare to other utilities in Massachusetts?
MANSFIELD WATER DIVISION scores 34/100 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.