D30/100
SOMERSET WATER DEPARTMENT — Water Quality Report 2026
Serving 18,303 people · Massachusetts
Water Source
Surface Water
County
—
System ID
MA4273000
Violations
23
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.010 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
2
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2021 – December 31, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2021 – September 30, 2021Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
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 SOMERSET WATER DEPARTMENT
Is SOMERSET WATER DEPARTMENT water safe to drink?
SOMERSET WATER DEPARTMENT water receives a grade of D (30/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 23 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has SOMERSET WATER DEPARTMENT detected?
69 contaminants were tested in SOMERSET WATER DEPARTMENT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does SOMERSET WATER DEPARTMENT have any EPA violations?
Yes, SOMERSET WATER DEPARTMENT has 23 EPA violation(s) on record, with the most recent in 2021. Violation types include MCL, MR. 11 are health-based violations.
How many people does SOMERSET WATER DEPARTMENT serve?
SOMERSET WATER DEPARTMENT serves approximately 18,303 people, Massachusetts. The system provides water to 1 community: Somerset.
What type of water does SOMERSET WATER DEPARTMENT provide?
SOMERSET 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 MA4273000.
How does SOMERSET WATER DEPARTMENT compare to other utilities in Massachusetts?
SOMERSET WATER DEPARTMENT scores 30/100 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.