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THE DIVERSIFIED GROUP

PWS ID: CT0791152 · MARLBOROUGH, Connecticut 06447

THE DIVERSIFIED GROUP serves 65 people in MARLBOROUGH, Connecticut using Groundwater water sources. It has 204 recorded EPA violations, including 12 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: THE DIVERSIFIED GROUP

THE DIVERSIFIED GROUP is a private-owned non-transient non-community water system that delivers drinking water to 65 residents in MARLBOROUGH, Connecticut (Hartford County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 204 total violations for this system , of which 12 (6%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 192 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 13 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 DIVERSIFIED GROUP's 204 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
65
Total Violations
204
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
2
County
Hartford
School/Daycare
No
MCL Violations
12
Monitoring Violations
192
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 13 2002
Coliform (TCR) MCL 12 2015
Lead and Copper Rule MR 9 1997
Styrene MR 9 2006
1,2,4-Trichlorobenzene MR 9 2006
cis-1,2-Dichloroethylene MR 9 2006
Nitrite MR 5 1997
Barium MR 5 1995
Cadmium MR 5 1995
Xylenes, Total MR 5 1997
Mercury MR 5 1995
Antimony, Total MR 5 1995
Beryllium, Total MR 5 1995
Thallium, Total MR 5 1995
Arsenic MR 5 1995
Nickel MR 5 1995
Chromium MR 5 1995
Fluoride MR 5 1995
CYANIDE MR 5 1995
Selenium MR 5 1995
Nitrate MR 5 1997
p-Dichlorobenzene MR 4 2006
Vinyl chloride MR 4 2006
1,1-Dichloroethylene MR 4 2006
trans-1,2-Dichloroethylene MR 4 2006
1,1,1-Trichloroethane MR 4 2006
1,2-Dichloropropane MR 4 2006
Tetrachloroethylene MR 4 2006
Benzene MR 4 2006
DICHLOROMETHANE MR 4 2006

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 DIVERSIFIED GROUP.

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 CT0791152 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
2015 Coliform (TCR) MCL 12 SDWIS / CT0791152 / 3100
2006 Styrene MR 9 SDWIS / CT0791152 / 2996
2006 1,2,4-Trichlorobenzene MR 9 SDWIS / CT0791152 / 2378
2006 cis-1,2-Dichloroethylene MR 9 SDWIS / CT0791152 / 2380
2006 p-Dichlorobenzene MR 4 SDWIS / CT0791152 / 2969
2006 Vinyl chloride MR 4 SDWIS / CT0791152 / 2976
2006 1,1-Dichloroethylene MR 4 SDWIS / CT0791152 / 2977
2006 trans-1,2-Dichloroethylene MR 4 SDWIS / CT0791152 / 2979
2006 1,1,1-Trichloroethane MR 4 SDWIS / CT0791152 / 2981
2006 1,2-Dichloropropane MR 4 SDWIS / CT0791152 / 2983
2006 Tetrachloroethylene MR 4 SDWIS / CT0791152 / 2987
2006 Benzene MR 4 SDWIS / CT0791152 / 2990
2006 DICHLOROMETHANE MR 4 SDWIS / CT0791152 / 2964
2006 1,1,2-Trichloroethane MR 4 SDWIS / CT0791152 / 2985
2006 Toluene MR 4 SDWIS / CT0791152 / 2991

How THE DIVERSIFIED GROUP Compares

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

Metric THE DIVERSIFIED GROUP Connecticut avg Federal benchmark
Total violations 204 88.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 12 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 65 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 DIVERSIFIED GROUP water safe to drink? ▼
THE DIVERSIFIED GROUP (PWS ID: CT0791152) has 204 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 65 people using Groundwater sources.
How many people does THE DIVERSIFIED GROUP serve? ▼
THE DIVERSIFIED GROUP serves 65 people in MARLBOROUGH, Connecticut. It is a Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does THE DIVERSIFIED GROUP have? ▼
THE DIVERSIFIED GROUP has 204 total violations: 12 health-based violations (MCL exceedances or treatment failures), 192 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in THE DIVERSIFIED GROUP water? ▼
No PFAS testing data is available for THE DIVERSIFIED GROUP under the EPA's UCMR5 monitoring program.
What water source does THE DIVERSIFIED GROUP use? ▼
THE DIVERSIFIED GROUP 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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