Water quality in Thomaston, Connecticut
Thomaston is in Litchfield County. 348 active public water systems serve the county; 205 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Litchfield County
75 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ctwc Naugatuck Reg-Terryville System Plymouth |
5,607 | 0 | 3.4 mi | |
| Watertown Water & Sewer Authority Middlebury, Waterbury, Watertown |
9,972 | 2 | 5.4 mi | |
| Watertown Fire District Watertown |
6,718 | 1 | 5.6 mi | |
| Watertown Water & Sewer Westgate Watertown |
600 | 2 | 6.0 mi | |
| Eldridge Elderly Housing Morris |
40 | 4 | 6.0 mi | |
| Touchstone N.a.f.i. Litchfield |
43 | 1 | 6.6 mi | |
| Lake Hills Village Condominiums Wolcott |
102 | 3 | 6.7 mi | |
| Woodhall School, INC Bethlehem |
68 | 1 | 7.1 mi | |
| North Purchase Elderly Housing Bethlehem |
72 | 0 | 7.5 mi | |
| Garden Lane Apartments Harwinton |
40 | 0 | 7.9 mi | |
| Fernwood Rest Home Litchfield |
107 | 2 | 8.0 mi | |
| Aquarion-Litchfield Regional Goshen, Litchfield, Torrington |
3,097 | 0 | 8.2 mi | |
| Breezy Knoll Association Litchfield, Morris |
100 | 1 | 8.4 mi | |
| Bantam Village Litchfield |
96 | 2 | 8.9 mi | |
| Torrington Water Company Harwinton, Litchfield, New Hartford and 1 more |
37,915 | 0 | 9.7 mi | |
| Quassuk Heights Condominium Assn Woodbury |
108 | 0 | 10.2 mi | |
| Dodge Farm Washington |
42 | 1 | 11.0 mi | |
| Rumsey Hall School Washington |
398 | 1 | 11.2 mi | |
| Town in Country Condominiums Upper Sys Woodbury |
120 | 1 | 11.6 mi | |
| Town in Country Condominiums Lower Sys Woodbury |
120 | 1 | 11.7 mi | |
| Woodbury Knoll, Llc. Woodbury |
258 | 3 | 11.7 mi | |
| Aquarion-Woodbury Woodbury |
1,209 | 0 | 11.7 mi | |
| Heritage Hill Condominium Assn, INC Woodbury |
120 | 3 | 11.7 mi | |
| Aquarion-Judea Main Washington |
219 | 0 | 12.1 mi | |
| The Frederick Gunn School, Inc. Washington |
300 | 3 | 12.4 mi |
Non-community systems in Litchfield County (272: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Litchfield County, nearest to Thomaston first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.