Water quality in Wilton, Connecticut
Wilton is in Fairfield County. 336 active public water systems serve the county; 249 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 Fairfield County
60 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Aquarion-Stamford Darien, Greenwich, Stamford |
119,214 | 0 | 2.9 mi | |
| Weston Water Supply Weston |
100 | 1 | 4.2 mi | |
| Norwalk First Taxing District New Canaan, Norwalk, Westport and 1 more |
40,256 | 0 | 5.0 mi | |
| Aquarion-New Canaan New Canaan, Stamford |
10,097 | 0 | 6.0 mi | |
| Aquarion-Ridgefield Ridgefield |
7,476 | 1 | 6.8 mi | |
| Aquarion-Darien Darien, New Canaan, Norwalk and 1 more |
18,737 | 0 | 6.8 mi | |
| South Norwalk Electric & Water Darien, New Canaan, Norwalk and 1 more |
42,000 | 1 | 6.9 mi | |
| Brookview Water Company Ridgefield |
55 | 4 | 9.4 mi | |
| Aquarion-Ridgefield Knolls Ridgefield |
958 | 1 | 9.9 mi | |
| Lake Waubeeka Association Danbury |
712 | 0 | 10.1 mi | |
| Aquarion-Scodon Ridgefield |
130 | 0 | 11.3 mi | |
| Shady Acres Mobile Home Park Danbury |
117 | 1 | 11.4 mi | |
| Bethel Water Dept Bethel, Danbury |
9,507 | 6 | 11.4 mi | |
| Tashua Village Association, Inc. Trumbull |
35 | 6 | 11.4 mi | |
| Elmwood Court, LLC Bethel |
54 | 6 | 12.4 mi | |
| Aquarion-McKeon Ridgefield |
67 | 0 | 12.8 mi | |
| Aquarion-Ken Oaks Danbury |
152 | 0 | 12.8 mi | |
| Aquarion-Barnum Ridgefield |
120 | 0 | 12.9 mi | |
| Aquarion-Rolling Ridge Danbury |
115 | 0 | 13.2 mi | |
| Danbury Water Department Bethel, Brookfield, Danbury and 1 more |
62,055 | 0 | 13.6 mi | |
| 27 Maple Drive Monroe |
38 | 3 | 14.3 mi | |
| Aquarion-Newtown Regional Newtown |
6,054 | 1 | 14.4 mi | |
| Danbury Water Dept-Ridgeview Gardens Danbury |
116 | 0 | 14.7 mi | |
| 55 Sugar Street Newtown |
158 | 5 | 14.7 mi | |
| Cornell Hills Assoc, INC Danbury |
108 | 3 | 15.1 mi |
Non-community systems in Fairfield County (275: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Fairfield County, nearest to Wilton 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 place files or 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.