CITY WATER-SYSTEM LEDGER
Ann Arbor, Michigan
EPA’s September 2026 export lists 3 active community water systems serving Ann Arbor, Michigan, 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 Ann Arbor, Michigan
EPA associates 3 covered systems with Ann Arbor, Michigan; their reported population-served values total 156,851 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 |
|---|---|---|---|
| Ann ArborMI0000220 | 123,851 | Surface water | No current violation flagged |
| Pittsfield TownshipMI0005360 | 24,500 | Surface water purchased | No current violation flagged |
| Scio TownshipMI0005977 | 8,500 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Ann Arbor, Michigan
EPA classifies 3 systems serving Ann Arbor, Michigan across 2 primary-source categories; Surface water is the largest category with 1 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.