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ROLLING HILLS COUNTRY CLUB

PWS ID: CT1615083 · WILTON, Connecticut 06897

ROLLING HILLS COUNTRY CLUB serves 100 people in WILTON, Connecticut using Groundwater water sources. It has 135 recorded EPA violations, including 11 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROLLING HILLS COUNTRY CLUB

ROLLING HILLS COUNTRY CLUB is a private-owned non-transient non-community water system that delivers drinking water to 100 residents in WILTON, Connecticut (Fairfield County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 135 total violations for this system , of which 11 (8%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 115 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 10 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. ROLLING HILLS COUNTRY CLUB's 135 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
100
Total Violations
135
Health-Based Violations
11
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Fairfield
School/Daycare
No
MCL Violations
10
Monitoring Violations
115
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 10 2011
Lead and Copper Rule MR 7 2021
Public Notice Other 4 2024
Revised Total Coliform Rule MON 4 2023
Revised Total Coliform Rule RPT 4 2020
DICHLOROMETHANE MR 2 2022
o-Dichlorobenzene MR 2 2022
p-Dichlorobenzene MR 2 2022
1,1-Dichloroethylene MR 2 2022
Carbon tetrachloride MR 2 2022
1,2-Dichloropropane MR 2 2022
1,1,2-Trichloroethane MR 2 2022
CHLOROBENZENE MR 2 2022
Toluene MR 2 2022
Ethylbenzene MR 2 2022
Styrene MR 2 2022
Endrin MR 2 2020
BHC-GAMMA MR 2 2020
Methoxychlor MR 2 2020
Glyphosate MR 2 2020
OXAMYL MR 2 2020
Aldicarb sulfone MR 2 2020
Carbofuran MR 2 2020
Atrazine MR 2 2020
Heptachlor MR 2 2020
2,4-D MR 2 2020
2,4,5-TP MR 2 2020
HEXACHLOROBENZENE MR 2 2020
Pentachlorophenol MR 2 2020
Chlordane MR 2 2020

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 ROLLING HILLS COUNTRY CLUB.

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 CT1615083 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 Public Notice Other 4 SDWIS / CT1615083 / 7500
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT1615083 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CT1615083 / 5200
2023 Revised Total Coliform Rule MON 4 SDWIS / CT1615083 / 8000
2022 DICHLOROMETHANE MR 2 SDWIS / CT1615083 / 2964
2022 o-Dichlorobenzene MR 2 SDWIS / CT1615083 / 2968
2022 p-Dichlorobenzene MR 2 SDWIS / CT1615083 / 2969
2022 1,1-Dichloroethylene MR 2 SDWIS / CT1615083 / 2977
2022 Carbon tetrachloride MR 2 SDWIS / CT1615083 / 2982
2022 1,2-Dichloropropane MR 2 SDWIS / CT1615083 / 2983
2022 1,1,2-Trichloroethane MR 2 SDWIS / CT1615083 / 2985
2022 CHLOROBENZENE MR 2 SDWIS / CT1615083 / 2989
2022 Toluene MR 2 SDWIS / CT1615083 / 2991
2022 Ethylbenzene MR 2 SDWIS / CT1615083 / 2992
2022 Styrene MR 2 SDWIS / CT1615083 / 2996

How ROLLING HILLS COUNTRY CLUB Compares

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

Metric ROLLING HILLS COUNTRY CLUB Connecticut avg Federal benchmark
Total violations 135 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 11 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 100 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 ROLLING HILLS COUNTRY CLUB water safe to drink? ▼
ROLLING HILLS COUNTRY CLUB (PWS ID: CT1615083) has 135 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does ROLLING HILLS COUNTRY CLUB serve? ▼
ROLLING HILLS COUNTRY CLUB serves 100 people in WILTON, Connecticut. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does ROLLING HILLS COUNTRY CLUB have? ▼
ROLLING HILLS COUNTRY CLUB has 135 total violations: 11 health-based violations (MCL exceedances or treatment failures), 115 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROLLING HILLS COUNTRY CLUB water? ▼
No PFAS testing data is available for ROLLING HILLS COUNTRY CLUB under the EPA's UCMR5 monitoring program.
What water source does ROLLING HILLS COUNTRY CLUB use? ▼
ROLLING HILLS COUNTRY CLUB 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.

Read our methodology — how this data is sourced, computed, and verified.

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