D23/100
MONSON WATER AND SEWER DEPT — Water Quality Report 2026
Serving 4,212 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA1191000
Violations
54
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.006 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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 MONSON WATER AND SEWER DEPT
Is MONSON WATER AND SEWER DEPT water safe to drink?
MONSON WATER AND SEWER DEPT water receives a grade of D (23/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 54 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MONSON WATER AND SEWER DEPT detected?
31 contaminants were tested in MONSON WATER AND SEWER DEPT's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does MONSON WATER AND SEWER DEPT have any EPA violations?
Yes, MONSON WATER AND SEWER DEPT has 54 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL, MR. 5 are health-based violations.
How many people does MONSON WATER AND SEWER DEPT serve?
MONSON WATER AND SEWER DEPT serves approximately 4,212 people, Massachusetts. The system provides water to 1 community: Monson.
What type of water does MONSON WATER AND SEWER DEPT provide?
MONSON WATER AND SEWER DEPT sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA1191000.
How does MONSON WATER AND SEWER DEPT compare to other utilities in Massachusetts?
MONSON WATER AND SEWER DEPT scores 23/100 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.