Water quality in Seymour, Connecticut
Seymour is in New Haven County. 212 active public water systems serve the county; 114 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 New Haven County
31 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Aquarion-Hawkstone Oxford, Seymour |
120 | 0 | 2.5 mi | |
| Aquarion-Valley Ansonia, Beacon Falls, Bethany and 3 more |
13,080 | 0 | 3.6 mi | |
| Aquarion-East Derby Derby, Orange |
1,101 | 1 | 3.7 mi | |
| Aquarion-Oxford Towne Center Oxford |
449 | 0 | 6.5 mi | |
| Aquarion-Lakeside Southbury |
455 | 0 | 8.5 mi | |
| Bethany Mobile Home Park Bethany |
138 | 2 | 9.2 mi | |
| Heritage Water Company Middlebury, Oxford, Southbury |
7,300 | 0 | 9.2 mi | |
| Oakdale Manor Water Association Southbury |
40 | 5 | 9.8 mi | |
| Idleview Mobile Home Park Naugatuck |
138 | 0 | 10.4 mi | |
| Ctwc Naugatuck Region-Central System Beacon Falls, Naugatuck, Prospect and 1 more |
22,735 | 0 | 10.4 mi | |
| Harmony Acres Mobile Home Park Prospect |
465 | 1 | 11.3 mi | |
| Middlebury Commons Middlebury |
76 | 1 | 12.3 mi | |
| Aquarion-West Shore Middlebury |
100 | 0 | 12.3 mi | |
| Southbury Training School Southbury |
816 | 4 | 12.7 mi | |
| Crestview Condominium Association Cheshire |
84 | 6 | 14.0 mi | |
| Waterbury Water Department Middlebury, Prospect, Waterbury and 2 more |
107,271 | 2 | 14.3 mi | |
| Wolcott Water Department Waterbury, Wolcott |
2,550 | 0 | 16.3 mi | |
| Wallingford Water Department North Haven, Wallingford |
37,267 | 2 | 16.4 mi | |
| Aquarion-Clearview Hills Wolcott |
215 | 0 | 16.9 mi | |
| Countryside Apartments Wolcott |
218 | 0 | 16.9 mi | |
| Arrowhead by the Lake Association, Inc. Wolcott |
288 | 0 | 17.4 mi | |
| Aquarion-Woodrich Village Wolcott |
72 | 0 | 17.5 mi | |
| Northford Glen Condominium Association North Branford |
84 | 5 | 18.3 mi | |
| Blue Trails Water Association Durham, North Branford |
224 | 4 | 19.6 mi | |
| Meriden Water Division Berlin, Cheshire, Meriden and 2 more |
58,441 | 4 | 19.9 mi |
Non-community systems in New Haven County (180: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to New Haven County, nearest to Seymour 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.