Revised Total Coliform Rule (RTCR) violations in Connecticut
466 active public water systems in Connecticut had a Revised Total Coliform Rule (RTCR) violation in the past three years, 161 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
464 Wolcott Road Wolcott · New Haven County |
40 | 1 | 0 | |
|
Acls Properties Inc. Danbury · Fairfield County |
40 | 3 | 0 | |
|
Fox Hopyard Golf Club Pro Shop Well East Haddam · Middlesex County |
40 | 1 | 0 | |
|
Goodspeed Actor Housing the Village East Haddam · Middlesex County |
40 | 6 | 3 | |
|
GR Art and Care Building Stamford · Fairfield County |
40 | 4 | 0 | |
|
High Point Gardens Wolcott · New Haven County |
40 | 3 | 2 | |
|
Lake Waramaug/maintenance Tennis & Beach Washington · Litchfield County |
40 | 3 | 1 | |
|
Middlesex Hospital Phys Rehab&occup. Med Essex · Middlesex County |
40 | 2 | 0 | |
|
North Guilford Congregational Church Guilford · New Haven County |
40 | 3 | 0 | |
|
Vitale Aquatic & Tennis Ledyard · New London County |
40 | 2 | 0 | |
|
Hebron Arms Apartments Hebron · Tolland County |
39 | 6 | 3 | |
|
DW Transport & Leasing, Inc. Franklin · New London County |
38 | 2 | 0 | |
|
Tilcon Connecticut Inc. North Branford North Branford · New Haven County |
38 | 5 | 1 | |
|
20 East High Street East Hampton · Middlesex County |
37 | 2 | 1 | |
|
598 Voluntown Road LLC Griswold · New London County |
37 | 2 | 1 | |
|
Saint Maurice Church Well# 2 CR Bolton · Tolland County |
37 | 2 | 0 | |
|
Town of Hebron East Street Park Hebron · Tolland County |
37 | 2 | 0 | |
|
Weideles Pizza & Pub (oneco Commons) Sterling · Windham County |
37 | 2 | 1 | |
|
55-69 Nott Highway Ashford · Windham County |
36 | 2 | 1 | |
|
Bernhardt Meadow Roxbury · Litchfield County |
36 | 3 | 1 | |
|
607 Cornwall Bridge Road Sharon · Litchfield County |
35 | 1 | 0 | |
|
Bridgewater Village Store Bridgewater · Litchfield County |
35 | 2 | 0 | |
|
Canton Professional Building Canton · Hartford County |
35 | 1 | 0 | |
|
Danbury Animal Hospital Bethel · Fairfield County |
35 | 1 | 0 | |
|
Great Hollow Lake Monroe · Fairfield County |
35 | 3 | 0 | |
|
Tashua Village Association, Inc. Trumbull · Fairfield County |
35 | 6 | 0 | |
|
Christ Episcopal Church Oxford · New Haven County |
34 | 5 | 2 | |
|
36 Main Street Sprague · New London County |
33 | 2 | 1 | |
|
Cumberland Farms Mansfield · Tolland County |
33 | 2 | 0 | |
|
Flanders Crossings Bethlehem · Litchfield County |
33 | 1 | 0 | |
|
Killingly Professional Building Killingly · Windham County |
33 | 2 | 0 | |
|
Oakridge Village Montville · New London County |
33 | 5 | 1 | |
|
Stafford Professional Suites Stafford · Tolland County |
33 | 2 | 1 | |
|
Gyre9 Southbury · New Haven County |
32 | 5 | 1 | |
|
Maugle Sierra Vineyards LLC Ledyard · New London County |
32 | 1 | 0 | |
|
Salem Manor Condominiums, System #1 Salem · New London County |
32 | 4 | 1 | |
|
Round Hill Store/service Station Greenwich · Fairfield County |
31 | 2 | 1 | |
|
Temple B'nai Chaim New Bldg Redding · Fairfield County |
31 | 1 | 0 | |
|
The Little Store Guilford · New Haven County |
31 | 2 | 1 | |
|
40 William F. Palmer RD East Haddam · Middlesex County |
30 | 3 | 0 | |
|
Country Farms Plainfield · Windham County |
30 | 2 | 0 | |
|
East Windsor Commons, LLC East Windsor · Hartford County |
30 | 3 | 1 | |
|
Gas Plus Haddam · Middlesex County |
30 | 2 | 0 | |
|
Nickerson Park Campground System #2 Eastford · Windham County |
30 | 1 | 0 | |
|
Red Fox Marketplace and Panini Grill Middlefield · Middlesex County |
30 | 3 | 1 | |
|
Silver Lake Main System Sharon · Litchfield County |
30 | 1 | 0 | |
|
Simoniz USA Bolton · Tolland County |
30 | 3 | 1 | |
|
Trinity Retreat Center-Butler Hall Cornwall · Litchfield County |
30 | 3 | 0 | |
|
108 Main Street Middlefield · Middlesex County |
29 | 2 | 0 | |
|
Miner Hills Family Golf LLC Middletown · Middlesex County |
29 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Connecticut records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.