Water quality in Thompson, Connecticut
Thompson is in Windham County. 255 active public water systems serve the county; 139 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Windham County
52 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Marianapolis Prep School ST Johns Thompson |
128 | 1 | 0.6 mi | |
| Ctwc Thompson System Thompson |
1,070 | 0 | 1.1 mi | |
| Thompson Hill Water CO Paula Lane Div Thompson |
85 | 2 | 1.2 mi | |
| Justice Resource Institute, Inc. Thompson |
56 | 0 | 2.3 mi | |
| Matulaitis Nursing Home Putnam |
254 | 2 | 2.8 mi | |
| Putnam Water Pollution Control Authority Putnam, Thompson, Woodstock |
7,300 | 1 | 3.9 mi | |
| Roseland Terrace Association, Inc. Woodstock |
100 | 1 | 3.9 mi | |
| Pinecrest Condominiums Woodstock |
110 | 3 | 4.5 mi | |
| Ctwc Cornfield Point Div. Woodstock |
57 | 0 | 4.5 mi | |
| Woodstock Meadows Condominium Assn. Woodstock |
180 | 1 | 4.6 mi | |
| Woodstock Housing Authority Woodstock |
26 | 3 | 4.8 mi | |
| Brookwood Apartments Woodstock |
44 | 4 | 5.0 mi | |
| Woodstock Academy South Campus Woodstock |
620 | 1 | 5.1 mi | |
| Fawn Ridge Association Inc. Woodstock |
36 | 2 | 5.3 mi | |
| Quinebaug Mobile Home Park Thompson |
205 | 2 | 5.4 mi | |
| Country Manor Pomfret |
66 | 3 | 6.4 mi | |
| Seely Brown Village Pomfret |
48 | 3 | 6.8 mi | |
| The Rectory School Pomfret |
300 | 2 | 6.9 mi | |
| Pomfret School Pomfret |
400 | 2 | 7.3 mi | |
| Country Acres Park Killingly |
48 | 2 | 8.1 mi | |
| Brookscrossing Apartments Pomfret |
36 | 1 | 8.3 mi | |
| Conrads Park Killingly |
60 | 5 | 9.1 mi | |
| Ctwc Crystal System Brooklyn, Killingly |
6,378 | 0 | 9.6 mi | |
| Brooklyn Manor Brooklyn |
30 | 1 | 10.4 mi | |
| Cranberry Bog Apartments Killingly |
72 | 1 | 11.6 mi |
Non-community systems in Windham County (202: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Windham County, nearest to Thompson 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.