F0/100
AQUARION-EASTERN FAIRFIELD COUNTY — Water Quality Report 2026
Serving 351,756 people · Connecticut
Water Source
Surface Water
County
—
System ID
CT0150011
Violations
155
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.004 µg/L | 0.004 µg/L | Over Limit |
chlorate | 660.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2021.
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 AQUARION-EASTERN FAIRFIELD COUNTY
Is AQUARION-EASTERN FAIRFIELD COUNTY water safe to drink?
AQUARION-EASTERN FAIRFIELD COUNTY water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 155 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has AQUARION-EASTERN FAIRFIELD COUNTY detected?
76 contaminants were tested in AQUARION-EASTERN FAIRFIELD COUNTY's water. Notable contaminants include PFOA, chlorate. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does AQUARION-EASTERN FAIRFIELD COUNTY have any EPA violations?
Yes, AQUARION-EASTERN FAIRFIELD COUNTY has 155 EPA violation(s) on record, with the most recent in 2021. Violation types include MR, Other, TT. 2 are health-based violations.
How many people does AQUARION-EASTERN FAIRFIELD COUNTY serve?
AQUARION-EASTERN FAIRFIELD COUNTY serves approximately 351,756 people, Connecticut. The system provides water to 20 communities: Beacon Falls, Bridgeport, Darien, Easton, Fairfield, and 15 more.
What type of water does AQUARION-EASTERN FAIRFIELD COUNTY provide?
AQUARION-EASTERN FAIRFIELD COUNTY 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 CT0150011.
How does AQUARION-EASTERN FAIRFIELD COUNTY compare to other utilities in Connecticut?
AQUARION-EASTERN FAIRFIELD COUNTY scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Connecticut state page for a full comparison of water systems.