C59/100
MANCHESTER WATER DEPARTMENT — Water Quality Report 2026
Serving 51,198 people · Connecticut
Water Source
Surface Water
County
—
System ID
CT0770021
Violations
14
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.007 µg/L | 0.004 µg/L | Over Limit |
chlorate | 239.00 µg/L | — | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2024 – November 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2024 – November 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: August 10, 2023 – August 24, 2023Enforcement: 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 MANCHESTER WATER DEPARTMENT
Is MANCHESTER WATER DEPARTMENT water safe to drink?
MANCHESTER WATER DEPARTMENT water receives a grade of C (59/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 14 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MANCHESTER WATER DEPARTMENT detected?
69 contaminants were tested in MANCHESTER WATER DEPARTMENT's water. Notable contaminants include PFOA, chlorate. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MANCHESTER WATER DEPARTMENT have any EPA violations?
Yes, MANCHESTER WATER DEPARTMENT has 14 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MCL. 4 are health-based violations.
How many people does MANCHESTER WATER DEPARTMENT serve?
MANCHESTER WATER DEPARTMENT serves approximately 51,198 people, Connecticut. The system provides water to 4 communities: Glastonbury, Manchester, South Windsor, Vernon.
What type of water does MANCHESTER WATER DEPARTMENT provide?
MANCHESTER 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 CT0770021.
How does MANCHESTER WATER DEPARTMENT compare to other utilities in Connecticut?
MANCHESTER WATER DEPARTMENT scores 59/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Connecticut state page for a full comparison of water systems.