C55/100
CTWC - SHORELINE REGION-CHESTER SYSTEM — Water Quality Report 2026
Serving 5,030 people · Connecticut
Water Source
Surface Water
County
—
System ID
CT0261031
Violations
45
Contaminant Test Results
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2016.
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 CTWC - SHORELINE REGION-CHESTER SYSTEM
Is CTWC - SHORELINE REGION-CHESTER SYSTEM water safe to drink?
CTWC - SHORELINE REGION-CHESTER SYSTEM water receives a grade of C (55/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 45 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CTWC - SHORELINE REGION-CHESTER SYSTEM detected?
51 contaminants were tested in CTWC - SHORELINE REGION-CHESTER SYSTEM's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.
Does CTWC - SHORELINE REGION-CHESTER SYSTEM have any EPA violations?
Yes, CTWC - SHORELINE REGION-CHESTER SYSTEM has 45 EPA violation(s) on record, with the most recent in 2016. Violation types include MON, MR.
How many people does CTWC - SHORELINE REGION-CHESTER SYSTEM serve?
CTWC - SHORELINE REGION-CHESTER SYSTEM serves approximately 5,030 people, Connecticut. The system provides water to 3 communities: Chester, Deep River, Essex.
What type of water does CTWC - SHORELINE REGION-CHESTER SYSTEM provide?
CTWC - SHORELINE REGION-CHESTER SYSTEM 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 CT0261031.
How does CTWC - SHORELINE REGION-CHESTER SYSTEM compare to other utilities in Connecticut?
CTWC - SHORELINE REGION-CHESTER SYSTEM scores 55/100 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.