C45/100
WEST GROTON WATER SUPPLY DISTRICT — Water Quality Report 2026
Serving 1,853 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA2115001
Violations
27
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2012.
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 WEST GROTON WATER SUPPLY DISTRICT
Is WEST GROTON WATER SUPPLY DISTRICT water safe to drink?
WEST GROTON WATER SUPPLY DISTRICT water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 27 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WEST GROTON WATER SUPPLY DISTRICT detected?
2 contaminants were tested in WEST GROTON WATER SUPPLY DISTRICT's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does WEST GROTON WATER SUPPLY DISTRICT have any EPA violations?
Yes, WEST GROTON WATER SUPPLY DISTRICT has 27 EPA violation(s) on record, with the most recent in 2012. Violation types include MCL, MR. 5 are health-based violations.
How many people does WEST GROTON WATER SUPPLY DISTRICT serve?
WEST GROTON WATER SUPPLY DISTRICT serves approximately 1,853 people, Massachusetts. The system provides water to 1 community: Groton.
What type of water does WEST GROTON WATER SUPPLY DISTRICT provide?
WEST GROTON WATER SUPPLY DISTRICT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA2115001.
How does WEST GROTON WATER SUPPLY DISTRICT compare to other utilities in Massachusetts?
WEST GROTON WATER SUPPLY DISTRICT 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.