A87/100
AQUARION-EAST DERBY — Water Quality Report 2026
Serving 1,101 people · Connecticut
Water Source
Purchased Surface Water
County
—
System ID
CT0378011
Violations
13
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2018.
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-EAST DERBY
Is AQUARION-EAST DERBY water safe to drink?
AQUARION-EAST DERBY water receives a grade of A (87/100), which is considered excellent. Out of 4 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.
What contaminants has AQUARION-EAST DERBY detected?
4 contaminants were tested in AQUARION-EAST DERBY's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does AQUARION-EAST DERBY have any EPA violations?
Yes, AQUARION-EAST DERBY has 13 EPA violation(s) on record, with the most recent in 2018. Violation types include Other, MR.
How many people does AQUARION-EAST DERBY serve?
AQUARION-EAST DERBY serves approximately 1,101 people, Connecticut. The system provides water to 2 communities: Derby, Orange.
What type of water does AQUARION-EAST DERBY provide?
AQUARION-EAST DERBY 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 CT0378011.
How does AQUARION-EAST DERBY compare to other utilities in Connecticut?
AQUARION-EAST DERBY scores 87/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Connecticut state page for a full comparison of water systems.