CITY WATER-SYSTEM LEDGER
Greenwich, Connecticut
EPA’s September 2026 export lists 3 active community water systems serving Greenwich, 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 Greenwich, Connecticut
EPA associates 3 covered systems with Greenwich, Connecticut; their reported population-served values total 524,267 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 |
|---|---|---|---|
| Aquarion-Eastern Fairfield CountyCT0150011 | 351,756 | Surface water | No current violation flagged |
| Aquarion-StamfordCT1350011 | 119,214 | Surface water | No current violation flagged |
| Aquarion-GreenwichCT0570011 | 53,297 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Greenwich, Connecticut
EPA classifies 3 systems serving Greenwich, Connecticut across 1 primary-source categories; Surface water is the largest category with 3 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.