Water quality in Union, Connecticut
Union is in Tolland County. 295 active public water systems serve the county; 154 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Tolland County
67 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ridgeview Heights Willington |
96 | 2 | 9.1 mi | |
| Deer Park Apartments Willington |
125 | 2 | 9.2 mi | |
| Willington Senior Center & Housing Willington |
327 | 0 | 10.2 mi | |
| Ivy Woods Tolland |
207 | 2 | 10.5 mi | |
| Natural Park Apartments Willington |
60 | 3 | 10.9 mi | |
| Walden Apartments Willington |
276 | 2 | 11.7 mi | |
| Woods Edge Apartments Mansfield |
96 | 5 | 11.8 mi | |
| Johnson Memorial Hospital, INC Stafford |
250 | 1 | 11.8 mi | |
| Ctwc Riversedge Division Willington |
179 | 0 | 12.1 mi | |
| Woodhaven Apartments Willington |
489 | 2 | 12.3 mi | |
| Tolland Water Dept Torry Road Tolland |
204 | 2 | 12.4 mi | |
| Tolland Water Department Tolland |
1,251 | 0 | 12.5 mi | |
| Eastview Kozley Water Association Tolland |
60 | 2 | 12.7 mi | |
| Willington Ridge Condos System #2 Willington |
102 | 1 | 12.9 mi | |
| Willington Ridge Condos System #1 Willington |
102 | 1 | 13.0 mi | |
| Ctwc Uconn South Eagleville Div. Mansfield |
750 | 0 | 13.2 mi | |
| Village at Crystal Springs Tolland |
25 | 0 | 13.3 mi | |
| Renwood Apartments Mansfield |
190 | 4 | 13.3 mi | |
| Club House Apartments Mansfield |
115 | 2 | 13.5 mi | |
| Hunting Lodge Apartments Mansfield |
115 | 1 | 13.7 mi | |
| Baxter Farms Community Water Assoc Tolland |
175 | 0 | 13.8 mi | |
| Aquarion-Valley View Mansfield |
131 | 0 | 13.9 mi | |
| Carriage House Apartments Mansfield |
196 | 0 | 14.1 mi | |
| Orchard Acres Association Mansfield |
176 | 1 | 14.2 mi | |
| University of Connecticut Main Campus Mansfield |
27,199 | 0 | 14.2 mi |
Non-community systems in Tolland County (227: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Tolland County, nearest to Union 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.
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.