All water systems in Connecticut
2,334 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
White Oak Condominiums Mansfield · Tolland County |
192 | 2 | 2 | |
|
Country Club of New Canaan New Canaan · Fairfield County |
190 | 2 | 0 | |
|
Hemlock Hill Cooperative Camp Resort INC Goshen · Litchfield County |
190 | 1 | 1 | |
|
Renwood Apartments Mansfield · Tolland County |
190 | 4 | 1 | |
|
Aquarion-East Hampton East Hampton · Middlesex County |
189 | 0 | 0 | |
|
Discovery Zone Learning Cntr Columbia Columbia · Tolland County |
189 | 0 | 0 | |
|
Ctwc Country Mobile Div. Griswold · New London County |
186 | 0 | 0 | |
|
Crystal Lake Condominiums Salem · New London County |
184 | 0 | 0 | |
|
171 Amity Road Bethany · New Haven County |
180 | 1 | 0 | |
|
Brightpath Redding Redding · Fairfield County |
180 | 0 | 0 | |
|
Curtis Packaging Newtown · Fairfield County |
180 | 1 | 0 | |
|
St. Clements Marina East Hampton · Middlesex County |
180 | 0 | 0 | |
|
Waterford Country School, Inc. Waterford · New London County |
180 | 0 | 0 | |
|
Woodstock Meadows Condominium Assn. Woodstock · Windham County |
180 | 1 | 1 | |
|
YMCA Camp Mountain Laurel Hamden · New Haven County |
180 | 1 | 0 | |
|
Ctwc Riversedge Division Willington · Tolland County |
179 | 0 | 0 | |
|
Linemaster Switch Corp Woodstock · Windham County |
178 | 3 | 1 | |
|
Bakerville Consolidated School New Hartford · Litchfield County |
177 | 0 | 0 | |
|
Mallard Cove Condominium Assn. East Hampton · Middlesex County |
177 | 7 | 0 | |
|
Orchard Acres Association Mansfield · Tolland County |
176 | 1 | 1 | |
|
Waterview Business Park Montville · New London County |
176 | 2 | 2 | |
|
Baxter Farms Community Water Assoc Tolland · Tolland County |
175 | 0 | 0 | |
|
Carefree Homeowners Association Lebanon · New London County |
172 | 3 | 1 | |
|
Church of Latter-Day Saints, Madison Madison · New Haven County |
172 | 0 | 0 | |
|
Shaker Heights Water Company Enfield · Hartford County |
172 | 2 | 1 | |
|
Colebrook Consolidated School Colebrook · Litchfield County |
170 | 0 | 0 | |
|
Ctwc Crystal Springs Div. Mansfield · Tolland County |
169 | 0 | 0 | |
|
Precious Memories Daycare Center Groton · New London County |
169 | 0 | 0 | |
|
Kettletown S.p./beach Well Southbury · New Haven County |
167 | 1 | 1 | |
|
Kettletown S.p./campground Well Southbury · New Haven County |
167 | 0 | 0 | |
|
Ctwc Sachem Village Condo Marlborough · Hartford County |
166 | 0 | 0 | |
|
Grace Farms Foundation New Canaan · Fairfield County |
165 | 1 | 0 | |
|
Marlborough Health Care Center, INC Marlborough · Hartford County |
165 | 1 | 1 | |
|
Scwa, Chriswood Division (cwd) Ledyard · New London County |
164 | 0 | 0 | |
|
Aquarion-Dean Heights New Milford · Litchfield County |
162 | 0 | 0 | |
|
Ctwc Northern Reg-Nathan Hale System Coventry · Tolland County |
160 | 0 | 0 | |
|
Grower Direct Farms INC Somers · Tolland County |
160 | 1 | 1 | |
|
55 Sugar Street Newtown · Fairfield County |
158 | 5 | 2 | |
|
Kindercare Learning Center Inc. Bethel · Fairfield County |
157 | 1 | 1 | |
|
Tri-State Baptist Church Thompson · Windham County |
157 | 2 | 0 | |
|
DD Durham Durham · Middlesex County |
156 | 0 | 0 | |
|
Hawthorne Terrace Assoc Danbury · Fairfield County |
156 | 1 | 0 | |
|
Twin Hills Water District Coventry · Tolland County |
156 | 2 | 1 | |
|
Columbia Manufacturing Well #2 Columbia · Tolland County |
155 | 2 | 1 | |
|
Lisbon Mobile Homes Lisbon · New London County |
155 | 0 | 0 | |
|
East Haddam Municipal Center East Haddam · Middlesex County |
154 | 2 | 1 | |
|
Ctwc Uconn Depot Div. Mansfield · Tolland County |
153 | 0 | 0 | |
|
Ctwc Westchester East East Hampton · Middlesex County |
153 | 1 | 1 | |
|
Maplewood-Millbrook Apartments Mansfield · Tolland County |
153 | 1 | 1 | |
|
Aquarion-Ken Oaks Danbury · Fairfield County |
152 | 0 | 0 |
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 still 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. Retrieved from ECHO on Oct 11, 2026.