PlainWater
States → Connecticut

Community Water System · PWS CT0490031

Connecticut Correctional Institute

Wethersfield, Connecticut 06109 - drinking water served from groundwater sources to 2,385 people, tracked in EPA SDWIS and UCMR5.

2,385
People served
460
EPA violations
16
Health-based
Untested
UCMR5 result

The verdict

EPA records 460 drinking-water violations at Connecticut Correctional Institute, 3% of them health-based - above the Connecticut per-system average.

460
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
2,385
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Connecticut Correctional Institute

Connecticut Correctional Institute is a state-owned community water system that delivers drinking water to 2,385 residents in Wethersfield, Connecticut (Hartford County) through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 460 total violations for this system , of which 16 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 425 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Chlorine, recorded in 21 violations (MR). 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. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%).

Connecticut Correctional Institute's 460 violations sit above the Connecticut average.

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
2,385
Total Violations
460
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
State
Connections
6
County
Hartford
School/Daycare
No
MCL Violations
16
Monitoring Violations
425
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 21 2020
Coliform (TCR) MCL 12 2008
Endrin MR 10 2012
BHC-GAMMA MR 10 2012
Glyphosate MR 10 2012
Di(2-ethylhexyl) adipate MR 10 2012
Di(2-ethylhexyl) phthalate MR 10 2012
Dinoseb MR 10 2012
Hexachlorocyclopentadiene MR 10 2012
Aldicarb sulfoxide MR 10 2012
Aldicarb sulfone MR 10 2012
Carbofuran MR 10 2012
Aldicarb MR 10 2012
Heptachlor MR 10 2012
2,4-D MR 10 2012
2,4,5-TP MR 10 2012
Benzo(a)pyrene MR 10 2012
Methoxychlor MR 10 2012
Diquat MR 10 2012
OXAMYL MR 10 2012
Heptachlor epoxide MR 10 2012
Pentachlorophenol MR 10 2012
ETHYLENE DIBROMIDE MR 10 2012
Chlordane MR 10 2012
Toxaphene MR 10 2012
Simazine MR 10 2012
Total Polychlorinated Biphenyls (PCB) MR 10 2012
HEXACHLOROBENZENE MR 10 2012
1,2-DIBROMO-3-CHLOROPROPANE MR 10 2012
Picloram MR 10 2012

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 Connecticut Correctional Institute.

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 CT0490031 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
2023 Consumer Confidence Rule Other 5 SDWIS / CT0490031 / 7000
2021 Public Notice Other 3 SDWIS / CT0490031 / 7500
2020 Chlorine MR 21 SDWIS / CT0490031 / 0999
2020 Lead and Copper Rule MR 8 SDWIS / CT0490031 / 5000
2020 Arsenic MCL 4 SDWIS / CT0490031 / 1005
2019 ManMade Beta Particle and Photon Emitter MR 8 SDWIS / CT0490031 / 4101
2018 Gross Beta Particle Activity MR 6 SDWIS / CT0490031 / 4100
2018 Gross Alpha, Excl. Radon and U MR 6 SDWIS / CT0490031 / 4000
2018 Combined Uranium MR 6 SDWIS / CT0490031 / 4006
2018 Combined Radium (-226 and -228) MR 6 SDWIS / CT0490031 / 4010
2017 38-STRONTIUM-90 MR 4 SDWIS / CT0490031 / 4174
2015 Nitrite MR 2 SDWIS / CT0490031 / 1041
2012 Endrin MR 10 SDWIS / CT0490031 / 2005
2012 BHC-GAMMA MR 10 SDWIS / CT0490031 / 2010
2012 Glyphosate MR 10 SDWIS / CT0490031 / 2034

How Connecticut Correctional Institute Compares

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

Metric Connecticut Correctional Institute Connecticut avg Federal benchmark
Total violations 460 88.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 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 2,385 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Connecticut Correctional Institute water safe to drink? ▼
Connecticut Correctional Institute (PWS ID: CT0490031) has 460 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,385 people using Groundwater sources.
How many people does Connecticut Correctional Institute serve? ▼
Connecticut Correctional Institute serves 2,385 people in Wethersfield, Connecticut. It is a State-owned system using Groundwater water sources with 6 service connections.
What type of violations does Connecticut Correctional Institute have? ▼
Connecticut Correctional Institute has 460 total violations: 16 health-based violations (MCL exceedances or treatment failures), 425 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Connecticut Correctional Institute water? ▼
No PFAS testing data is available for Connecticut Correctional Institute under the EPA's UCMR5 monitoring program.
What water source does Connecticut Correctional Institute use? ▼
Connecticut Correctional Institute 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.