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ST. BERNARD SCHOOL

PWS ID: CT0860282 · UNCASVILLE, Connecticut 06382

ST. BERNARD SCHOOL serves 950 people in UNCASVILLE, Connecticut using Groundwater water sources. It has 70 recorded EPA violations, including 20 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ST. BERNARD SCHOOL

ST. BERNARD SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 950 residents in UNCASVILLE, Connecticut (New London County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 70 total violations for this system , of which 20 (29%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 46 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 Lead and Copper Rule, recorded in 32 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. ST. BERNARD SCHOOL's 70 violations sit below 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
950
Total Violations
70
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
New London
School/Daycare
Yes
MCL Violations
10
Monitoring Violations
46
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 32 2023
Coliform (TCR) MCL 10 2002
Lead and Copper Rule TT 9 2013
Di(2-ethylhexyl) phthalate MR 4 2024
Revised Total Coliform Rule MON 4 2017
Coliform (TCR) MR 4 2004
Toxaphene MR 2 2014
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024
Public Notice Other 1 2015

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 ST. BERNARD SCHOOL.

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 CT0860282 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 Di(2-ethylhexyl) phthalate MR 4 SDWIS / CT0860282 / 2039
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT0860282 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CT0860282 / 5200
2023 Lead and Copper Rule MR 32 SDWIS / CT0860282 / 5000
2017 Revised Total Coliform Rule MON 4 SDWIS / CT0860282 / 8000
2015 Public Notice Other 1 SDWIS / CT0860282 / 7500
2014 Toxaphene MR 2 SDWIS / CT0860282 / 2020
2013 Lead and Copper Rule TT 9 SDWIS / CT0860282 / 5000
2004 Coliform (TCR) MR 4 SDWIS / CT0860282 / 3100
2002 Coliform (TCR) MCL 10 SDWIS / CT0860282 / 3100

How ST. BERNARD SCHOOL Compares

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

Metric ST. BERNARD SCHOOL Connecticut avg Federal benchmark
Total violations 70 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 20 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 950 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 ST. BERNARD SCHOOL water safe to drink?
ST. BERNARD SCHOOL (PWS ID: CT0860282) has 70 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 950 people using Groundwater sources.
How many people does ST. BERNARD SCHOOL serve?
ST. BERNARD SCHOOL serves 950 people in UNCASVILLE, Connecticut. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does ST. BERNARD SCHOOL have?
ST. BERNARD SCHOOL has 70 total violations: 20 health-based violations (MCL exceedances or treatment failures), 46 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ST. BERNARD SCHOOL water?
No PFAS testing data is available for ST. BERNARD SCHOOL under the EPA's UCMR5 monitoring program.
What water source does ST. BERNARD SCHOOL use?
ST. BERNARD SCHOOL uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial