Water quality in Hamden, Connecticut
Hamden 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 |
|---|---|---|---|---|
| Bethany Mobile Home Park Bethany |
138 | 2 | 5.8 mi | |
| Harmony Acres Mobile Home Park Prospect |
465 | 1 | 6.0 mi | |
| Crestview Condominium Association Cheshire |
84 | 6 | 6.4 mi | |
| Aquarion-Valley Ansonia, Beacon Falls, Bethany and 3 more |
13,080 | 0 | 7.5 mi | |
| Wallingford Water Department North Haven, Wallingford |
37,267 | 2 | 7.5 mi | |
| Aquarion-East Derby Derby, Orange |
1,101 | 1 | 8.4 mi | |
| Northford Glen Condominium Association North Branford |
84 | 5 | 9.0 mi | |
| Ctwc Naugatuck Region-Central System Beacon Falls, Naugatuck, Prospect and 1 more |
22,735 | 0 | 9.5 mi | |
| Blue Trails Water Association Durham, North Branford |
224 | 4 | 10.3 mi | |
| Aquarion-Hawkstone Oxford, Seymour |
120 | 0 | 11.4 mi | |
| Idleview Mobile Home Park Naugatuck |
138 | 0 | 11.6 mi | |
| Meriden Water Division Berlin, Cheshire, Meriden and 2 more |
58,441 | 4 | 11.8 mi | |
| Aquarion-Oxford Towne Center Oxford |
449 | 0 | 11.9 mi | |
| Meriden Care Center Llc-Silver Springs Meriden |
334 | 0 | 12.1 mi | |
| Quonnipaug Hills Section I Guilford |
27 | 0 | 12.2 mi | |
| Quonnipaug Hills Main System Guilford |
564 | 2 | 12.2 mi | |
| Waterbury Water Department Middlebury, Prospect, Waterbury and 2 more |
107,271 | 2 | 12.6 mi | |
| Wolcott Water Department Waterbury, Wolcott |
2,550 | 0 | 13.2 mi | |
| Middlebury Commons Middlebury |
76 | 1 | 13.3 mi | |
| Aquarion-Clearview Hills Wolcott |
215 | 0 | 13.5 mi | |
| Countryside Apartments Wolcott |
218 | 0 | 13.6 mi | |
| Heritage Water Company Middlebury, Oxford, Southbury |
7,300 | 0 | 14.0 mi | |
| Aquarion-Woodrich Village Wolcott |
72 | 0 | 14.6 mi | |
| Arrowhead by the Lake Association, Inc. Wolcott |
288 | 0 | 14.9 mi | |
| Aquarion-West Shore Middlebury |
100 | 0 | 15.1 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 Hamden 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.