COUNTY WATER-SYSTEM LEDGER
Hartford, Connecticut
EPA’s September 2026 export lists 15 active community water systems serving Hartford, Connecticut, with 4 current-violation flags and 1 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 Hartford, Connecticut
EPA associates 15 covered systems with Hartford, Connecticut; their reported population-served values total 811,709 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 |
|---|---|---|---|
| Metropolitan District CommissionCT0640011 | 390,887 | Surface water | No current violation flagged |
| Ctwc - Northern Reg-Western SystemCT0473011 | 101,313 | Surface water | Other current violation flag |
| New Britain Water DepartmentCT0890011 | 73,534 | Surface water | No current violation flagged |
| Bristol Water DepartmentCT0170011 | 52,079 | Surface water | No current violation flagged |
| Manchester Water DepartmentCT0770021 | 51,198 | Surface water | No current violation flagged |
| Southington Water DepartmentCT1310011 | 43,069 | Surface water | No current violation flagged |
| Hazardville Water CompanyCT0490021 | 18,544 | Ground water | No current violation flagged |
| Aquarion-Plainville RegionalCT1100011 | 18,231 | Ground water | Current serious-violator flag |
| Ctwc - Unionville SystemCT0520011 | 14,693 | Surface water purchased | No current violation flagged |
| Aquarion-Simsbury RegionalCT1280021 | 14,691 | Ground water | No current violation flagged |
| Avon Water CoCT0040011 | 11,590 | Ground water | Current monitoring/reporting flag |
| Kensington Fire DistrictCT0070011 | 7,553 | Surface water purchased | No current violation flagged |
| Ctwc - Naugatuck Reg-Collinsville SysCT0230011 | 6,324 | Surface water | No current violation flagged |
| Berlin Water Control CommissionCT0070021 | 5,128 | Surface water purchased | Current health-based flag |
| Worthington Fire DistrictCT0070031 | 2,875 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Hartford, Connecticut
EPA classifies 15 systems serving Hartford, Connecticut across 3 primary-source categories; Surface water is the largest category with 7 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.