St. Louis city County, Missouri Water Systems
St. Louis city County, Missouri
2 community water systems on record — 1 active, 1 inactive.
Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Missouri’s official records. Always confirm current status with Missouri before making decisions based on this information.
Community water systems in St. Louis city County, Missouri
- ST LOUIS CITY PWSST LOUIS · 304,709 servedActive
- ST LOUIS CITY-CHAIN OF ROCKSST LOUIS · 25 servedInactive
| System name | City | Population served | Status |
|---|---|---|---|
| ST LOUIS CITY PWS | ST LOUIS | 304,709 | Active |
| ST LOUIS CITY-CHAIN OF ROCKS | ST LOUIS | 25 | Inactive |