PlainWater
States → Connecticut

THE LEARNING DEN

PWS ID: CT0240262 · WEST HARTFORD, Connecticut 06117

THE LEARNING DEN serves 55 people in WEST HARTFORD, Connecticut using Groundwater water sources. It has 748 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: THE LEARNING DEN

THE LEARNING DEN is a private-owned non-transient non-community water system that delivers drinking water to 55 residents in WEST HARTFORD, Connecticut (Windham County) through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 748 total violations for this system , of which 1 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 747 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 DICHLOROMETHANE, recorded in 14 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. THE LEARNING DEN's 748 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
55
Total Violations
748
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
6
County
Windham
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
747
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
DICHLOROMETHANE MR 14 2018
Dalapon MR 14 2018
Vinyl chloride MR 14 2018
trans-1,2-Dichloroethylene MR 14 2018
1,2-Dichloroethane MR 14 2018
Diquat MR 14 2018
1,2-Dichloropropane MR 14 2018
Trichloroethylene MR 14 2018
Tetrachloroethylene MR 14 2018
CHLOROBENZENE MR 14 2018
Benzene MR 14 2018
Ethylbenzene MR 14 2018
Styrene MR 14 2018
Di(2-ethylhexyl) adipate MR 14 2018
Endrin MR 14 2018
OXAMYL MR 14 2018
Simazine MR 14 2018
Picloram MR 14 2018
Dinoseb MR 14 2018
Hexachlorocyclopentadiene MR 14 2018
Aldicarb sulfoxide MR 14 2018
Carbofuran MR 14 2018
LASSO MR 14 2018
Heptachlor MR 14 2018
Heptachlor epoxide MR 14 2018
Di(2-ethylhexyl) phthalate MR 14 2018
HEXACHLOROBENZENE MR 14 2018
Pentachlorophenol MR 14 2018
1,2-DIBROMO-3-CHLOROPROPANE MR 14 2018
Methoxychlor MR 14 2018

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 THE LEARNING DEN.

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 CT0240262 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 / CT0240262 / 5200
2023 Lead and Copper Rule MR 11 SDWIS / CT0240262 / 5000
2018 DICHLOROMETHANE MR 14 SDWIS / CT0240262 / 2964
2018 Dalapon MR 14 SDWIS / CT0240262 / 2031
2018 Vinyl chloride MR 14 SDWIS / CT0240262 / 2976
2018 trans-1,2-Dichloroethylene MR 14 SDWIS / CT0240262 / 2979
2018 1,2-Dichloroethane MR 14 SDWIS / CT0240262 / 2980
2018 Diquat MR 14 SDWIS / CT0240262 / 2032
2018 1,2-Dichloropropane MR 14 SDWIS / CT0240262 / 2983
2018 Trichloroethylene MR 14 SDWIS / CT0240262 / 2984
2018 Tetrachloroethylene MR 14 SDWIS / CT0240262 / 2987
2018 CHLOROBENZENE MR 14 SDWIS / CT0240262 / 2989
2018 Benzene MR 14 SDWIS / CT0240262 / 2990
2018 Ethylbenzene MR 14 SDWIS / CT0240262 / 2992
2018 Styrene MR 14 SDWIS / CT0240262 / 2996

How THE LEARNING DEN Compares

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

Metric THE LEARNING DEN Connecticut avg Federal benchmark
Total violations 748 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 55 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 THE LEARNING DEN water safe to drink? ▼
THE LEARNING DEN (PWS ID: CT0240262) has 748 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 55 people using Groundwater sources.
How many people does THE LEARNING DEN serve? ▼
THE LEARNING DEN serves 55 people in WEST HARTFORD, Connecticut. It is a Private-owned system using Groundwater water sources with 6 service connections.
What type of violations does THE LEARNING DEN have? ▼
THE LEARNING DEN has 748 total violations: 1 health-based violations (MCL exceedances or treatment failures), 747 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in THE LEARNING DEN water? ▼
No PFAS testing data is available for THE LEARNING DEN under the EPA's UCMR5 monitoring program.
What water source does THE LEARNING DEN use? ▼
THE LEARNING DEN 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.

Explore PlainWater

Water in Connecticut

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Connecticut

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial