F0/100
MCI SHIRLEY — Water Quality Report 2026
Serving 3,500 people · Massachusetts
Water Source
Groundwater
County
—
System ID
MA2270001
Violations
99
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2008.
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 MCI SHIRLEY
Is MCI SHIRLEY water safe to drink?
MCI SHIRLEY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 99 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MCI SHIRLEY detected?
31 contaminants were tested in MCI SHIRLEY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does MCI SHIRLEY have any EPA violations?
Yes, MCI SHIRLEY has 99 EPA violation(s) on record, with the most recent in 2008. Violation types include MR, MCL, Other. 8 are health-based violations.
How many people does MCI SHIRLEY serve?
MCI SHIRLEY serves approximately 3,500 people, Massachusetts. The system provides water to 1 community: Shirley.
What type of water does MCI SHIRLEY provide?
MCI SHIRLEY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is MA2270001.
How does MCI SHIRLEY compare to other utilities in Massachusetts?
MCI SHIRLEY 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.