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CTWC - SOUTH COVENTRY SYSTEM

PWS ID: CT0320051 · CLINTON, Connecticut 06413

CTWC - SOUTH COVENTRY SYSTEM serves 501 people in CLINTON, Connecticut using Groundwater water sources. It has 232 recorded EPA violations, including 46 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CTWC - SOUTH COVENTRY SYSTEM

CTWC - SOUTH COVENTRY SYSTEM is a private-owned community water system that delivers drinking water to 501 residents in CLINTON, Connecticut (Tolland County) through 141 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 232 total violations for this system , of which 46 (20%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 182 monitoring and reporting violations are on file. The most recent violation on record dates to 2014.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 44 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Connecticut, EPA tracks 2,332 public water systems serving 2,886,005 people, with 206,662 cumulative violations and 21,779 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 88.6 violations. CTWC - SOUTH COVENTRY SYSTEM's 232 violations sit above the Connecticut average. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
501
Total Violations
232
Health-Based Violations
46
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
141
County
Tolland
School/Daycare
No
MCL Violations
44
Monitoring Violations
182
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 44 2014
1,2,4-Trichlorobenzene MR 4 2010
cis-1,2-Dichloroethylene MR 4 2010
DICHLOROMETHANE MR 4 2010
Vinyl chloride MR 4 2010
1,1-Dichloroethylene MR 4 2010
1,2-Dichloroethane MR 4 2010
1,1,1-Trichloroethane MR 4 2010
Carbon tetrachloride MR 4 2010
1,2-Dichloropropane MR 4 2010
Trichloroethylene MR 4 2010
1,1,2-Trichloroethane MR 4 2010
Ethylbenzene MR 4 2010
Styrene MR 4 2010
p-Dichlorobenzene MR 4 2010
Tetrachloroethylene MR 4 2010
Benzene MR 4 2010
E. COLI MR 4 2014
trans-1,2-Dichloroethylene MR 4 2010
o-Dichlorobenzene MR 4 2010
CHLOROBENZENE MR 4 2010
Toluene MR 4 2010
Lead and Copper Rule TT 2 2001
Nitrate MR 2 2010
Nitrite MR 2 2010
Arsenic MR 2 2008
Cadmium MR 2 2008
CYANIDE MR 2 2008
Mercury MR 2 2008
Nickel MR 2 2008

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for CTWC - SOUTH COVENTRY SYSTEM.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CT0320051 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Connecticut Drinking Water Authority

Connecticut's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find CT regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2014 Coliform (TCR) MCL 44 SDWIS / CT0320051 / 3100
2014 E. COLI MR 4 SDWIS / CT0320051 / 3014
2014 Coliform (TCR) MR 2 SDWIS / CT0320051 / 3100
2010 1,2,4-Trichlorobenzene MR 4 SDWIS / CT0320051 / 2378
2010 cis-1,2-Dichloroethylene MR 4 SDWIS / CT0320051 / 2380
2010 DICHLOROMETHANE MR 4 SDWIS / CT0320051 / 2964
2010 Vinyl chloride MR 4 SDWIS / CT0320051 / 2976
2010 1,1-Dichloroethylene MR 4 SDWIS / CT0320051 / 2977
2010 1,2-Dichloroethane MR 4 SDWIS / CT0320051 / 2980
2010 1,1,1-Trichloroethane MR 4 SDWIS / CT0320051 / 2981
2010 Carbon tetrachloride MR 4 SDWIS / CT0320051 / 2982
2010 1,2-Dichloropropane MR 4 SDWIS / CT0320051 / 2983
2010 Trichloroethylene MR 4 SDWIS / CT0320051 / 2984
2010 1,1,2-Trichloroethane MR 4 SDWIS / CT0320051 / 2985
2010 Ethylbenzene MR 4 SDWIS / CT0320051 / 2992

How CTWC - SOUTH COVENTRY SYSTEM Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric CTWC - SOUTH COVENTRY SYSTEM Connecticut avg Federal benchmark
Total violations 232 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 46 9.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 63.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 501 1,238 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,332 regulated public water systems in Connecticut.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CTWC - SOUTH COVENTRY SYSTEM water safe to drink? ▼
CTWC - SOUTH COVENTRY SYSTEM (PWS ID: CT0320051) has 232 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 501 people using Groundwater sources.
How many people does CTWC - SOUTH COVENTRY SYSTEM serve? ▼
CTWC - SOUTH COVENTRY SYSTEM serves 501 people in CLINTON, Connecticut. It is a Private-owned system using Groundwater water sources with 141 service connections.
What type of violations does CTWC - SOUTH COVENTRY SYSTEM have? ▼
CTWC - SOUTH COVENTRY SYSTEM has 232 total violations: 46 health-based violations (MCL exceedances or treatment failures), 182 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CTWC - SOUTH COVENTRY SYSTEM water? ▼
No PFAS testing data is available for CTWC - SOUTH COVENTRY SYSTEM under the EPA's UCMR5 monitoring program.
What water source does CTWC - SOUTH COVENTRY SYSTEM use? ▼
CTWC - SOUTH COVENTRY SYSTEM uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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