COUNTY WATER-SYSTEM LEDGER
St. Louis, Missouri
EPA’s September 2026 export lists 3 active community water systems serving St. Louis, Missouri, with 1 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 St. Louis, Missouri
EPA associates 3 covered systems with St. Louis, Missouri; their reported population-served values total 1,145,000 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 |
|---|---|---|---|
| Mo American St Louis St Charles CountiesMO6010716 | 1,111,000 | Surface water | No current violation flagged |
| Kirkwood PWSMO6010430 | 28,000 | Surface water purchased | No current violation flagged |
| Pacific PWSMO6010620 | 6,000 | Ground water | Current monitoring/reporting flag |
02 / SOURCE MIX
Primary water sources for St. Louis, Missouri
EPA classifies 3 systems serving St. Louis, Missouri across 3 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.