CITY WATER-SYSTEM LEDGER
Farmington, Connecticut
EPA’s September 2026 export lists 5 active community water systems serving Farmington, Connecticut, with 2 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 Farmington, Connecticut
EPA associates 5 covered systems with Farmington, Connecticut; their reported population-served values total 508,935 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 |
| New Britain Water DepartmentCT0890011 | 73,534 | Surface 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 |
| Avon Water CoCT0040011 | 11,590 | Ground water | Current monitoring/reporting flag |
02 / SOURCE MIX
Primary water sources for Farmington, Connecticut
EPA classifies 5 systems serving Farmington, Connecticut across 3 primary-source categories; Surface water is the largest category with 2 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.