COUNTY WATER-SYSTEM LEDGER
New Haven, Connecticut
EPA’s September 2026 export lists 9 active community water systems serving New Haven, Connecticut, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving New Haven, Connecticut
EPA associates 9 covered systems with New Haven, Connecticut; their reported population-served values total 701,519 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Regional Water AuthorityCT0930011 | 418,900 | Surface water | No current violation flagged |
| Waterbury Water DepartmentCT1510011 | 107,271 | Surface water | No current violation flagged |
| Meriden Water DivisionCT0800011 | 58,441 | Surface water | No current violation flagged |
| Wallingford Water DepartmentCT1480011 | 37,267 | Surface water | No current violation flagged |
| Ctwc - Shoreline Region-Guilford SystemCT0608011 | 33,975 | Surface water | No current violation flagged |
| Ctwc - Naugatuck Region-Central SystemCT0880011 | 22,735 | Surface water | No current violation flagged |
| Aquarion-ValleyCT1240011 | 13,080 | Surface water purchased | No current violation flagged |
| Heritage Water CompanyCT1300021 | 7,300 | Surface water purchased | No current violation flagged |
| Wolcott Water DepartmentCT1661423 | 2,550 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for New Haven, Connecticut
EPA classifies 9 systems serving New Haven, Connecticut across 2 primary-source categories; Surface water is the largest category with 6 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.