C58/100
AQUARION-RIDGEFIELD — Water Quality Report 2026
Serving 7,476 people · Connecticut
Water Source
Purchased Surface Water
County
—
System ID
CT1180011
Violations
23
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.005 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2021 – January 21, 2022Rule: Ground Water RuleEnforcement: 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 AQUARION-RIDGEFIELD
Is AQUARION-RIDGEFIELD water safe to drink?
AQUARION-RIDGEFIELD water receives a grade of C (58/100), which is considered fair. 1 contaminant(s) exceed EPA legal limits and 23 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has AQUARION-RIDGEFIELD detected?
34 contaminants were tested in AQUARION-RIDGEFIELD's water. Notable contaminants include PFOA, Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does AQUARION-RIDGEFIELD have any EPA violations?
Yes, AQUARION-RIDGEFIELD has 23 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-RIDGEFIELD serve?
AQUARION-RIDGEFIELD serves approximately 7,476 people, Connecticut. The system provides water to 1 community: Ridgefield.
What type of water does AQUARION-RIDGEFIELD provide?
AQUARION-RIDGEFIELD sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is CT1180011.
How does AQUARION-RIDGEFIELD compare to other utilities in Connecticut?
AQUARION-RIDGEFIELD scores 58/100 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.