TapSafetyReport
F0/100

SOUTHINGTON WATER DEPARTMENT — Water Quality Report 2026

Serving 43,069 people · Connecticut

Water Source
Surface Water
County
—
System ID
CT1310011
Violations
299

Contaminant Test Results

2 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.59 mg/L1.30 mg/LOver Limit
manganese
445.00 µg/L—Above Goal

EPA Violation History

12

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: March 1, 2025 – March 31, 2025Rule: 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: March 1, 2025 – March 31, 2025Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 12, 2024 – July 23, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 12, 2024 – July 23, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 12, 2024 – July 23, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 5, 2024 – July 23, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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, 2023 – November 30, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: August 10, 2023 – August 24, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2023 – March 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2022 – September 30, 2022Enforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to E. coli (RTCR)

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 1, 2022 – June 30, 2022Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Violation related to E. coli (RTCR)

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 1, 2022 – June 30, 2022Rule: Consumer Confidence 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 SOUTHINGTON WATER DEPARTMENT

Is SOUTHINGTON WATER DEPARTMENT water safe to drink?

SOUTHINGTON WATER DEPARTMENT water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 299 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has SOUTHINGTON WATER DEPARTMENT detected?

70 contaminants were tested in SOUTHINGTON WATER DEPARTMENT's water. Notable contaminants include Copper (90th percentile), manganese. 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).

Does SOUTHINGTON WATER DEPARTMENT have any EPA violations?

Yes, SOUTHINGTON WATER DEPARTMENT has 299 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, MCL. 3 are health-based violations.

How many people does SOUTHINGTON WATER DEPARTMENT serve?

SOUTHINGTON WATER DEPARTMENT serves approximately 43,069 people, Connecticut. The system provides water to 3 communities: Cheshire, Southington, Wolcott.

What type of water does SOUTHINGTON WATER DEPARTMENT provide?

SOUTHINGTON 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 CT1310011.

How does SOUTHINGTON WATER DEPARTMENT compare to other utilities in Connecticut?

SOUTHINGTON WATER DEPARTMENT 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.

Cities Served

CheshireSouthingtonWolcott