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FIRST CHURCH OF ROUND HILL

PWS ID: CT0579043 · GREENWICH, Connecticut 06831

FIRST CHURCH OF ROUND HILL serves 60 people in GREENWICH, Connecticut using Groundwater water sources. It has 130 recorded EPA violations, including 20 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: FIRST CHURCH OF ROUND HILL

FIRST CHURCH OF ROUND HILL is a private-owned non-transient non-community water system that delivers drinking water to 60 residents in GREENWICH, Connecticut (Fairfield County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 130 total violations for this system , of which 20 (15%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 99 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 24 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. FIRST CHURCH OF ROUND HILL's 130 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
60
Total Violations
130
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Fairfield
School/Daycare
Yes
MCL Violations
5
Monitoring Violations
99
Treatment Tech Violations
15

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 24 2024
Nitrate MR 9 2015
Revised Total Coliform Rule TT 8 2017
E. COLI MR 8 2019
Coliform (TCR) MR 7 2004
Public Notice Other 6 2020
Coliform (TCR) MCL 5 2004
CYANIDE MR 4 2004
Nickel MR 4 2004
Groundwater Rule TT 4 2019
Arsenic MR 4 2004
Fluoride MR 4 2004
Mercury MR 4 2004
Cadmium MR 4 2004
Barium MR 4 2004
Beryllium, Total MR 4 2004
Thallium, Total MR 4 2004
Selenium MR 4 2004
Chromium MR 4 2004
Antimony, Total MR 4 2004
Revised Total Coliform Rule MON 3 2018
Lead and Copper Rule TT 2 2017
LEAD AND COPPER RULE REVISIONS TT 1 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2024

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 FIRST CHURCH OF ROUND HILL.

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 CT0579043 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 24 SDWIS / CT0579043 / 5000
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CT0579043 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT0579043 / 5200
2020 Public Notice Other 6 SDWIS / CT0579043 / 7500
2019 E. COLI MR 8 SDWIS / CT0579043 / 3014
2019 Groundwater Rule TT 4 SDWIS / CT0579043 / 0700
2018 Revised Total Coliform Rule MON 3 SDWIS / CT0579043 / 8000
2017 Revised Total Coliform Rule TT 8 SDWIS / CT0579043 / 8000
2017 Lead and Copper Rule TT 2 SDWIS / CT0579043 / 5000
2015 Nitrate MR 9 SDWIS / CT0579043 / 1040
2004 Coliform (TCR) MR 7 SDWIS / CT0579043 / 3100
2004 Coliform (TCR) MCL 5 SDWIS / CT0579043 / 3100
2004 CYANIDE MR 4 SDWIS / CT0579043 / 1024
2004 Nickel MR 4 SDWIS / CT0579043 / 1036
2004 Arsenic MR 4 SDWIS / CT0579043 / 1005

How FIRST CHURCH OF ROUND HILL Compares

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

Metric FIRST CHURCH OF ROUND HILL Connecticut avg Federal benchmark
Total violations 130 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 60 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 FIRST CHURCH OF ROUND HILL water safe to drink?
FIRST CHURCH OF ROUND HILL (PWS ID: CT0579043) has 130 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does FIRST CHURCH OF ROUND HILL serve?
FIRST CHURCH OF ROUND HILL serves 60 people in GREENWICH, Connecticut. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does FIRST CHURCH OF ROUND HILL have?
FIRST CHURCH OF ROUND HILL has 130 total violations: 20 health-based violations (MCL exceedances or treatment failures), 99 monitoring/reporting violations, and 15 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in FIRST CHURCH OF ROUND HILL water?
No PFAS testing data is available for FIRST CHURCH OF ROUND HILL under the EPA's UCMR5 monitoring program.
What water source does FIRST CHURCH OF ROUND HILL use?
FIRST CHURCH OF ROUND HILL 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