All water systems in Connecticut
1,382 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
177 Route 81 Killingworth · Middlesex County |
25 | 0 | 0 | |
|
179 Main Street Monroe Monroe · Fairfield County |
25 | 2 | 1 | |
|
18 Mill Plain Road Danbury · Fairfield County |
25 | 1 | 0 | |
|
183 Route 81 LLC Killingworth · Middlesex County |
25 | 2 | 1 | |
|
19 Putnam RD Store LLC Pomfret · Windham County |
25 | 1 | 0 | |
|
1st Baptist Church Mansfield · Tolland County |
25 | 0 | 0 | |
|
2 Long Ridge Road Redding · Fairfield County |
25 | 1 | 1 | |
|
2 Main Street Redding · Fairfield County |
25 | 2 | 0 | |
|
2 North Street Wolcott · New Haven County |
25 | 1 | 1 | |
|
20 Copper Hill Road East Granby · Hartford County |
25 | 4 | 1 | |
|
201 Saybrook Road Haddam · Middlesex County |
25 | 0 | 0 | |
|
206 Route 80 Killingworth · Middlesex County |
25 | 0 | 0 | |
|
2103 Storrs Road Mansfield · Tolland County |
25 | 2 | 0 | |
|
22 New Haven Road Durham · Middlesex County |
25 | 2 | 2 | |
|
231 Oxford Road Oxford Oxford · New Haven County |
25 | 0 | 0 | |
|
240 Norwich Westerly Road (route 2) North Stonington · New London County |
25 | 0 | 0 | |
|
241 Roosevelt Drive Monroe · Fairfield County |
25 | 1 | 0 | |
|
25 Old Route 37 New Fairfield · Fairfield County |
25 | 1 | 1 | |
|
251 Route 7 S Canaan · Litchfield County |
25 | 0 | 0 | |
|
26 East High Street East Hampton · Middlesex County |
25 | 0 | 0 | |
|
260 Route 80 Killingworth Killingworth · Middlesex County |
25 | 1 | 1 | |
|
278 Leavenworth Rd, Building B Shelton · Fairfield County |
25 | 0 | 0 | |
|
283 Scenic Route 169 Woodstock · Windham County |
25 | 3 | 1 | |
|
291 Church Street (georgia's) Hebron · Tolland County |
25 | 1 | 0 | |
|
292 Riverside Drive Thompson Thompson · Windham County |
25 | 0 | 0 | |
|
296 Ethan Allen Highway Redding Redding · Fairfield County |
25 | 1 | 1 | |
|
299 Boston Turnpike Plaza Bolton · Tolland County |
25 | 0 | 0 | |
|
3 Sidecut Road Redding · Fairfield County |
25 | 2 | 1 | |
|
306 Albany Turnpike Canton · Hartford County |
25 | 2 | 0 | |
|
308 Sherman Hill Road Woodbury · Litchfield County |
25 | 0 | 0 | |
|
310 Albany Turnpike Canton · Hartford County |
25 | 1 | 1 | |
|
314 South Main Street Newtown · Fairfield County |
25 | 2 | 0 | |
|
316 South Main Street Newtown · Fairfield County |
25 | 2 | 0 | |
|
32 Main Street East Haddam East Haddam · Middlesex County |
25 | 2 | 2 | |
|
345 Gold Star Highway Groton Groton · New London County |
25 | 1 | 1 | |
|
36 East High Street East Hampton East Hampton · Middlesex County |
25 | 1 | 1 | |
|
36 Killingworth Tnpk Clinton · Middlesex County |
25 | 1 | 1 | |
|
363 and 369 West High Street East Hampton · Middlesex County |
25 | 1 | 0 | |
|
37 East High Street East Hampton · Middlesex County |
25 | 1 | 0 | |
|
37 Putnam Road Pomfret · Windham County |
25 | 0 | 0 | |
|
374 Town Street East Haddam · Middlesex County |
25 | 0 | 0 | |
|
376 Main Street Durham · Middlesex County |
25 | 1 | 0 | |
|
39 Adamec Road Willington · Tolland County |
25 | 0 | 0 | |
|
4 Cotton Tail Road New Fairfield · Fairfield County |
25 | 1 | 1 | |
|
4 Seasons Food Mart Cromwell · Middlesex County |
25 | 0 | 0 | |
|
459 Madison RD Durham · Middlesex County |
25 | 0 | 0 | |
|
466 Storrs RD Mansfield · Tolland County |
25 | 1 | 1 | |
|
496 Salmon Brook Street Granby · Hartford County |
25 | 1 | 1 | |
|
500 East Plaza Vernon · Tolland County |
25 | 0 | 0 | |
|
518 Norwich Road Plainfield Plainfield · Windham County |
25 | 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 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.