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 |
|---|---|---|---|---|
|
Newington VA Medical Center-Building 1 Newington · Hartford County |
110 | 1 | 0 | |
|
Evan's Deli Bethany · New Haven County |
102 | 2 | 1 | |
|
411c Norwich Westerly RD North Stonington · New London County |
100 | 4 | 2 | |
|
Atlas Commons Old Saybrook · Middlesex County |
100 | 8 | 1 | |
|
Bestway Food & Fuel Bolton Bolton · Tolland County |
100 | 1 | 0 | |
|
Brialee RV & Tent Park Ashford · Windham County |
100 | 5 | 1 | |
|
Christian Fellowship Church of Scotland Scotland · Windham County |
100 | 2 | 0 | |
|
Ross Hill Park Campground Lisbon · New London County |
100 | 2 | 0 | |
|
Fall Brook Mobile Home Park Killingly · Windham County |
98 | 6 | 1 | |
|
Johnsonville Chapel East Haddam · Middlesex County |
96 | 1 | 0 | |
|
Great Hill United Methodist Church Seymour · New Haven County |
85 | 3 | 0 | |
|
980 Rubber Avenue Naugatuck · New Haven County |
84 | 2 | 0 | |
|
Camp Isabella Freedman Canaan · Litchfield County |
84 | 2 | 0 | |
|
Newington VA Medical Center-Building 2c Newington · Hartford County |
80 | 1 | 0 | |
|
Kidds & Co., LLC North Stonington · New London County |
78 | 3 | 1 | |
|
Stonington Institute North Building North Stonington · New London County |
77 | 3 | 0 | |
|
Candlewood Inn Brookfield · Fairfield County |
75 | 1 | 0 | |
|
The Weston Field Club Well #2 Weston · Fairfield County |
75 | 8 | 2 | |
|
Rocky Glen Mill Newtown · Fairfield County |
70 | 6 | 1 | |
|
ST Francis Church Stamford · Fairfield County |
70 | 3 | 2 | |
|
State Police Barracks Troop E Montville · New London County |
70 | 2 | 1 | |
|
Wood Pond (west 1&2) North Stonington · New London County |
70 | 2 | 0 | |
|
Chatfield Hill Assn., Inc. Salisbury · Litchfield County |
68 | 1 | 0 | |
|
Little People's Play Place Marlborough · Hartford County |
68 | 3 | 2 | |
|
358 Danbury Road New Milford · Litchfield County |
66 | 3 | 1 | |
|
Granby Congregational Church Granby · Hartford County |
65 | 6 | 1 | |
|
Little Brook RD Property Owners Assn New Hartford · Litchfield County |
64 | 6 | 1 | |
|
Maple Oak Farm and Market Cheshire · New Haven County |
62 | 2 | 0 | |
|
Enchanted Garden Ethan Allen Hwy Ridgefield · Fairfield County |
61 | 6 | 1 | |
|
The Learning Center, Inc. South Windsor · Hartford County |
61 | 4 | 2 | |
|
Foothills Shopping Plaza New Hartford · Litchfield County |
60 | 2 | 1 | |
|
Nod Hill Brewery Ridgefield · Fairfield County |
60 | 7 | 2 | |
|
176 Rte 81 Killingworth · Middlesex County |
55 | 3 | 0 | |
|
Elmwood Court, LLC Bethel · Fairfield County |
54 | 6 | 2 | |
|
Todays Plaza, LLC Guilford · New Haven County |
54 | 1 | 0 | |
|
Deep Eastern District Headquarters Marlborough · Hartford County |
53 | 2 | 0 | |
|
Ttm Printed Circuit Building 5 Stafford · Tolland County |
51 | 1 | 0 | |
|
Bethany Lutheran Brethren Church Well# 1 Hartland · Hartford County |
50 | 2 | 1 | |
|
Bethany Lutheran Brethren Church Well# 2 Hartland · Hartford County |
50 | 2 | 0 | |
|
Newport Academy (double Hill) Bethlehem · Litchfield County |
50 | 1 | 0 | |
|
Safe Harbor, Inc. Westbrook · Middlesex County |
50 | 1 | 0 | |
|
Sugar Hill, LLC Newtown · Fairfield County |
50 | 3 | 0 | |
|
The Quarry Campground LLC (campers) Tolland · Tolland County |
50 | 3 | 0 | |
|
I-395 Southbound Service Plaza Montville · New London County |
49 | 2 | 1 | |
|
Quinlan Enterprise Building North Stonington · New London County |
46 | 3 | 1 | |
|
Dr. Munroe's Dental Center Torrington · Litchfield County |
45 | 1 | 0 | |
|
Newington VA Medical Center-Bldgs 3 & 42 Newington · Hartford County |
43 | 1 | 0 | |
|
Tradition Golf Club at Oak Lane Woodbridge · New Haven County |
43 | 2 | 1 | |
|
Woodstock Trading Post Woodstock · Windham County |
42 | 2 | 0 | |
|
Fish Family Farm Bolton · Tolland County |
41 | 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.