All water systems in Connecticut
2,334 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mount Hope Montessori School Mansfield · Tolland County |
88 | 1 | 1 | |
|
Eastconn Danielson Killingly · Windham County |
87 | 0 | 0 | |
|
M&m Realty Holdings LLC Killingworth · Middlesex County |
87 | 2 | 0 | |
|
Norbrook Farm Brewery Colebrook · Litchfield County |
87 | 0 | 0 | |
|
Laurel Hill Water Association Marlborough · Hartford County |
86 | 2 | 0 | |
|
George Washington Commons New Milford · Litchfield County |
85 | 2 | 1 | |
|
Great Hill United Methodist Church Seymour · New Haven County |
85 | 3 | 0 | |
|
Hyponex Corporation Bagging Plant Lebanon · New London County |
85 | 0 | 0 | |
|
Lakeview Estates Middlefield Middlefield · Middlesex County |
85 | 2 | 0 | |
|
Quality Name Plate Glastonbury · Hartford County |
85 | 0 | 0 | |
|
Thompson Hill Water CO Paula Lane Div Thompson · Windham County |
85 | 2 | 2 | |
|
980 Rubber Avenue Naugatuck · New Haven County |
84 | 2 | 0 | |
|
Aquarion-Fieldstone Ridge Danbury, New Fairfield · Fairfield County |
84 | 0 | 0 | |
|
Aquarion-Quarry Ridge Washington · Litchfield County |
84 | 1 | 0 | |
|
Arrow Point Water CO Warren · Litchfield County |
84 | 1 | 1 | |
|
Camp Isabella Freedman Canaan · Litchfield County |
84 | 2 | 0 | |
|
Crestview Condominium Association Cheshire · New Haven County |
84 | 6 | 3 | |
|
Deer Run Supply Montville · New London County |
84 | 2 | 1 | |
|
Evangelical Christian Center Main Ashford · Windham County |
84 | 5 | 2 | |
|
Knob Hill Condominiums Colchester · New London County |
84 | 2 | 0 | |
|
Lyman Orchard Country Farms Complex Middlefield · Middlesex County |
84 | 0 | 0 | |
|
Northford Glen Condominium Association North Branford · New Haven County |
84 | 5 | 2 | |
|
Sylvan Ridge Condominiums Middlefield · Middlesex County |
84 | 0 | 0 | |
|
Birch Mountain School Manchester · Hartford County |
83 | 2 | 1 | |
|
Day Pond S.p./beachwell Colchester · New London County |
83 | 0 | 0 | |
|
Wolf Den State Park/campground Well Pomfret · Windham County |
83 | 2 | 1 | |
|
South Shore Landing Old Lyme · New London County |
82 | 0 | 0 | |
|
The Kirby Mill & Winery Mansfield · Tolland County |
82 | 0 | 0 | |
|
Tri-Town Shopping Plaza Colchester · New London County |
82 | 2 | 2 | |
|
Aaron Manor Nursing & Rehab Center Chester · Middlesex County |
81 | 2 | 2 | |
|
Franklin Academy East Haddam · Middlesex County |
81 | 0 | 0 | |
|
Norfield Congregational Church Weston · Fairfield County |
81 | 3 | 1 | |
|
1 Salmon Brook Street Granby · Hartford County |
80 | 3 | 2 | |
|
Aquarion-Laurel Ridge New Milford · Litchfield County |
80 | 0 | 0 | |
|
Coventry Housing Authority-Lower System Coventry · Tolland County |
80 | 2 | 0 | |
|
Coventry Housing Authority-Upper System Coventry · Tolland County |
80 | 2 | 0 | |
|
Coventry Kids Center Coventry · Tolland County |
80 | 1 | 1 | |
|
Eversource East Hampton Service Center East Hampton · Middlesex County |
80 | 0 | 0 | |
|
Fairview Farms Golf Course & Restaurant Harwinton · Litchfield County |
80 | 0 | 0 | |
|
Isola Bella Youth Camp Salisbury · Litchfield County |
80 | 2 | 2 | |
|
Lincoln Park Elderly Housing Preston · New London County |
80 | 1 | 1 | |
|
Mountainside Treatment Center North Canaan · Litchfield County |
80 | 0 | 0 | |
|
Newington VA Medical Center-Building 2c Newington · Hartford County |
80 | 1 | 0 | |
|
Northfield Commons Association Somers · Tolland County |
80 | 1 | 1 | |
|
Numa Tool CO INC Thompson · Windham County |
80 | 2 | 2 | |
|
Plaza Shopping Center Hebron · Tolland County |
80 | 1 | 1 | |
|
St. Francis of Assisi R.c. Church Weston · Fairfield County |
80 | 1 | 1 | |
|
Union Elementary School Union · Tolland County |
80 | 1 | 1 | |
|
Northstone Gardens North Stonington · New London County |
79 | 3 | 2 | |
|
Sherman Green Marketplace Sherman · Fairfield County |
79 | 5 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.