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WHISPERING HILLS, LLC - WELL D SYSTEM

PWS ID: CT0010111 · VERNON, Connecticut 06066

WHISPERING HILLS, LLC - WELL D SYSTEM serves 48 people in VERNON, Connecticut using Groundwater water sources. It has 80 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WHISPERING HILLS, LLC - WELL D SYSTEM

WHISPERING HILLS, LLC - WELL D SYSTEM is a private-owned community water system that delivers drinking water to 48 residents in VERNON, Connecticut (Tolland County) through 24 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 80 total violations for this system , of which 1 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 64 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 Consumer Confidence Rule, recorded in 14 violations (Other). 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. WHISPERING HILLS, LLC - WELL D SYSTEM's 80 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
48
Total Violations
80
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
24
County
Tolland
School/Daycare
No
MCL Violations
0
Monitoring Violations
64
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 14 2019
Methoxychlor MR 2 2005
Toxaphene MR 2 2005
Dalapon MR 2 2005
Diquat MR 2 2005
Di(2-ethylhexyl) adipate MR 2 2005
Picloram MR 2 2005
Dinoseb MR 2 2005
Hexachlorocyclopentadiene MR 2 2005
Carbofuran MR 2 2005
Aldicarb MR 2 2005
LASSO MR 2 2005
Heptachlor MR 2 2005
Heptachlor epoxide MR 2 2005
2,4,5-TP MR 2 2005
HEXACHLOROBENZENE MR 2 2005
Pentachlorophenol MR 2 2005
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2005
Chlordane MR 2 2005
Coliform (TCR) MR 2 2007
2,4-D MR 2 2005
ETHYLENE DIBROMIDE MR 2 2005
Simazine MR 2 2005
Endrin MR 2 2005
BHC-GAMMA MR 2 2005
Total Polychlorinated Biphenyls (PCB) MR 2 2005
Benzo(a)pyrene MR 2 2005
Di(2-ethylhexyl) phthalate MR 2 2005
Aldicarb sulfoxide MR 2 2005
Glyphosate MR 2 2005

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 WHISPERING HILLS, LLC - WELL D SYSTEM.

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 CT0010111 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 REVISIONS TT 1 SDWIS / CT0010111 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CT0010111 / 5200
2019 Consumer Confidence Rule Other 14 SDWIS / CT0010111 / 7000
2007 Coliform (TCR) MR 2 SDWIS / CT0010111 / 3100
2005 Methoxychlor MR 2 SDWIS / CT0010111 / 2015
2005 Toxaphene MR 2 SDWIS / CT0010111 / 2020
2005 Dalapon MR 2 SDWIS / CT0010111 / 2031
2005 Diquat MR 2 SDWIS / CT0010111 / 2032
2005 Di(2-ethylhexyl) adipate MR 2 SDWIS / CT0010111 / 2035
2005 Picloram MR 2 SDWIS / CT0010111 / 2040
2005 Dinoseb MR 2 SDWIS / CT0010111 / 2041
2005 Hexachlorocyclopentadiene MR 2 SDWIS / CT0010111 / 2042
2005 Carbofuran MR 2 SDWIS / CT0010111 / 2046
2005 Aldicarb MR 2 SDWIS / CT0010111 / 2047
2005 LASSO MR 2 SDWIS / CT0010111 / 2051

How WHISPERING HILLS, LLC - WELL D SYSTEM Compares

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

Metric WHISPERING HILLS, LLC - WELL D SYSTEM Connecticut avg Federal benchmark
Total violations 80 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 1 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 48 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 WHISPERING HILLS, LLC - WELL D SYSTEM water safe to drink? ▼
WHISPERING HILLS, LLC - WELL D SYSTEM (PWS ID: CT0010111) has 80 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 48 people using Groundwater sources.
How many people does WHISPERING HILLS, LLC - WELL D SYSTEM serve? ▼
WHISPERING HILLS, LLC - WELL D SYSTEM serves 48 people in VERNON, Connecticut. It is a Private-owned system using Groundwater water sources with 24 service connections.
What type of violations does WHISPERING HILLS, LLC - WELL D SYSTEM have? ▼
WHISPERING HILLS, LLC - WELL D SYSTEM has 80 total violations: 1 health-based violations (MCL exceedances or treatment failures), 64 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WHISPERING HILLS, LLC - WELL D SYSTEM water? ▼
No PFAS testing data is available for WHISPERING HILLS, LLC - WELL D SYSTEM under the EPA's UCMR5 monitoring program.
What water source does WHISPERING HILLS, LLC - WELL D SYSTEM use? ▼
WHISPERING HILLS, LLC - WELL D SYSTEM 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.

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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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