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Community Water System · PWS CT0380021

Durham Center Division

Durham, Connecticut 06422 - drinking water served from surface water sources to 1,601 people, tracked in EPA SDWIS and UCMR5.

1,601
People served
298
EPA violations
90
Health-based
Untested
UCMR5 result

The verdict

EPA records 298 drinking-water violations at Durham Center Division, 30% of them health-based - above the Connecticut per-system average.

298
Total EPA violations on record
30%
Health-based (MCL / treatment failure)
1,601
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Durham Center Division

Durham Center Division is a local-owned community water system that delivers drinking water to 1,601 residents in Durham, Connecticut (Middlesex County) through 39 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 298 total violations for this system , of which 90 (30%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 148 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 89 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. Statewide, 40 of 63 UCMR5-tested systems have reported PFAS detections (63.5%).

Durham Center Division's 298 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
1,601
Total Violations
298
Health-Based Violations
90
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
39
County
Middlesex
School/Daycare
No
MCL Violations
89
Monitoring Violations
148
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 89 2001
Coliform (TCR) MR 62 2001
Nitrate-Nitrite MR 16 1993
Coliform (TCR) Other 10 1995
Lead and Copper Rule MR 7 2024
Consumer Confidence Rule Other 4 2016
p-Dichlorobenzene MR 3 1990
Vinyl chloride MR 3 1990
1,2-Dichloroethane MR 3 1990
1,1,1-Trichloroethane MR 3 1990
Carbon tetrachloride MR 3 1990
Trichloroethylene MR 3 1990
Benzene MR 3 1990
cis-1,2-Dichloroethylene MR 3 1990
1,2-DIBROMO-3-CHLOROPROPANE MR 3 1990
DICHLOROMETHANE MR 3 1990
o-Dichlorobenzene MR 3 1990
CHLOROBENZENE MR 3 1990
Toluene MR 3 1990
Ethylbenzene MR 3 1990
Styrene MR 3 1990
1,1,2-Trichloroethane MR 3 1990
1,1-Dichloroethylene MR 3 1990
Tetrachloroethylene MR 3 1990
1,2-Dichloropropane MR 3 1990
ETHYLENE DIBROMIDE MR 3 1990
trans-1,2-Dichloroethylene MR 3 1990
Public Notice Other 2 2018
Lead and Copper Rule TT 1 2001

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 Durham Center Division.

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 CT0380021 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
2024 Lead and Copper Rule MR 7 SDWIS / CT0380021 / 5000
2018 Public Notice Other 2 SDWIS / CT0380021 / 7500
2016 Consumer Confidence Rule Other 4 SDWIS / CT0380021 / 7000
2001 Coliform (TCR) MCL 89 SDWIS / CT0380021 / 3100
2001 Coliform (TCR) MR 62 SDWIS / CT0380021 / 3100
2001 Lead and Copper Rule TT 1 SDWIS / CT0380021 / 5000
1995 Coliform (TCR) Other 10 SDWIS / CT0380021 / 3100
1993 Nitrate-Nitrite MR 16 SDWIS / CT0380021 / 1038
1990 p-Dichlorobenzene MR 3 SDWIS / CT0380021 / 2969
1990 Vinyl chloride MR 3 SDWIS / CT0380021 / 2976
1990 1,2-Dichloroethane MR 3 SDWIS / CT0380021 / 2980
1990 1,1,1-Trichloroethane MR 3 SDWIS / CT0380021 / 2981
1990 Carbon tetrachloride MR 3 SDWIS / CT0380021 / 2982
1990 Trichloroethylene MR 3 SDWIS / CT0380021 / 2984
1990 Benzene MR 3 SDWIS / CT0380021 / 2990

How Durham Center Division Compares

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

Metric Durham Center Division Connecticut avg Federal benchmark
Total violations 298 88.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 90 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 1,601 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 Durham Center Division water safe to drink? ▼
Durham Center Division (PWS ID: CT0380021) has 298 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,601 people using Surface Water sources.
How many people does Durham Center Division serve? ▼
Durham Center Division serves 1,601 people in Durham, Connecticut. It is a Local-owned system using Surface Water water sources with 39 service connections.
What type of violations does Durham Center Division have? ▼
Durham Center Division has 298 total violations: 90 health-based violations (MCL exceedances or treatment failures), 148 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Durham Center Division water? ▼
No PFAS testing data is available for Durham Center Division under the EPA's UCMR5 monitoring program.
What water source does Durham Center Division use? ▼
Durham Center Division uses Surface Water 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.