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Community Water System · PWS CT0790041

Laurel Hill Water Association

Marlborough, Connecticut 06477 - drinking water served from groundwater sources to 86 people, tracked in EPA SDWIS and UCMR5.

86
People served
62
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 62 drinking-water violations at Laurel Hill Water Association, 35% of them health-based - below the Connecticut per-system average.

62
Total EPA violations on record
35%
Health-based (MCL / treatment failure)
86
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Laurel Hill Water Association

Laurel Hill Water Association is a private-owned community water system that delivers drinking water to 86 residents in Marlborough, Connecticut (Hartford County) through 24 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 62 total violations for this system , of which 22 (35%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 17 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 22 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%).

Laurel Hill Water Association's 62 violations sit below 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
86
Total Violations
62
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
24
County
Hartford
School/Daycare
No
MCL Violations
22
Monitoring Violations
17
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 22 2013
Consumer Confidence Rule Other 12 2024
Lead and Copper Rule MR 11 2023
Public Notice Other 3 2013
Coliform (TCR) Other 3 1996
Lead and Copper Rule Other 2 1994
Radium-226 MR 2 2000
Radium-228 MR 2 2000
Gross Alpha, Excl. Radon and U MR 2 2000

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 Laurel Hill Water Association.

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 CT0790041 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 Consumer Confidence Rule Other 12 SDWIS / CT0790041 / 7000
2023 Lead and Copper Rule MR 11 SDWIS / CT0790041 / 5000
2013 Coliform (TCR) MCL 22 SDWIS / CT0790041 / 3100
2013 Public Notice Other 3 SDWIS / CT0790041 / 7500
2000 Radium-226 MR 2 SDWIS / CT0790041 / 4020
2000 Radium-228 MR 2 SDWIS / CT0790041 / 4030
2000 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CT0790041 / 4000
1996 Coliform (TCR) Other 3 SDWIS / CT0790041 / 3100
1994 Lead and Copper Rule Other 2 SDWIS / CT0790041 / 5000

How Laurel Hill Water Association Compares

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

Metric Laurel Hill Water Association Connecticut avg Federal benchmark
Total violations 62 88.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 22 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 86 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 Laurel Hill Water Association water safe to drink? ▼
Laurel Hill Water Association (PWS ID: CT0790041) has 62 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 86 people using Groundwater sources.
How many people does Laurel Hill Water Association serve? ▼
Laurel Hill Water Association serves 86 people in Marlborough, Connecticut. It is a Private-owned system using Groundwater water sources with 24 service connections.
What type of violations does Laurel Hill Water Association have? ▼
Laurel Hill Water Association has 62 total violations: 22 health-based violations (MCL exceedances or treatment failures), 17 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Laurel Hill Water Association water? ▼
No PFAS testing data is available for Laurel Hill Water Association under the EPA's UCMR5 monitoring program.
What water source does Laurel Hill Water Association use? ▼
Laurel Hill Water Association 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.