County drinking water records
St. Louis County, MO drinking water systems
6 community water systems serve St. Louis County, MO, reporting 1,141,643 people served in all. A system that also serves other counties counts all of its customers here.
2 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.
4 rely mainly on groundwater and 2 on surface water, counting water bought from other systems.
Their lead service line inventories list 9,962 lead lines, 1,448 galvanized lines that must be replaced and 193,391 lines of unknown material.
2 more systems are placed in St. Louis County, MO by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.
- Community water systems
- 6
- People served, sum of each system's own figure
- 1,141,643
- Systems with a health-based violation, last 10 years
- 2
- Systems with one unresolved
- 0
- Lead service lines in inventories
- 9,962
Water systems serving St. Louis County
6 systemsPeople served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.
| System | Serves | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| MO American St Louis St Charles Counties | Chesterfield, Wildwood and 98 more | 1,111,000 | Surface water | 0 | 0 | 9,422 |
| Kirkwood PWS | Kirkwood, Des Peres and 5 more | 28,000 | Purchased surface water | 0 | 0 | 540 |
| MO Eastern Correctional Center | Pacific and land outside it | 1,100 | Groundwater | 0 | 0 | 0 |
| JCPSD Summer Set | Summer Set and Wildwood | 1,080 | Groundwater | 1 | 0 | 0 |
| MO American Pevely Farms | Outside cities and towns | 343 | Groundwater | 0 | 0 | 0 |
| Frontier Estates | Murphy and Manchester | 120 | Groundwater | 2 | 0 | 0 |
Systems placed by county record in St. Louis County
2 systemsEPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.
| System | Serves | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Pacific PWS | County on record | 6,000 | Groundwater | 0 | 0 | 0 |
| Terrisan | County on record | 240 | Purchased surface water | 0 | 1 | 0 |
Cities and towns in St. Louis County
98 places- Affton1 system
- Ballwin1 system
- Bella Villa1 system
- Bellefontaine Neighbors1 system
- Bellerive Acres1 system
- Bel-Nor1 system
- Bel-Ridge1 system
- Berkeley1 system
- Beverly Hills1 system
- Black Jack1 system
- Breckenridge Hills1 system
- Brentwood1 system
- Bridgeton1 system
- Calverton Park1 system
- Castle Point1 system
- Champ1 system
- Charlack1 system
- Chesterfield1 system
- Clarkson Valley1 system
- Clayton1 system
- Concord1 system
- Cool Valley1 system
- Country Club Hills1 system
- Country Life Acres1 system
- Crestwood2 systems
- Creve Coeur1 system
- Crystal Lake Park1 system
- Dellwood1 system
- Des Peres2 systems
- Edmundson1 system
- Ellisville1 system
- Eureka2 systems
- Fenton1 system
- Ferguson1 system
- Flordell Hills1 system
- Florissant1 system
- Frontenac2 systems
- Glasgow Village1 system
- Glendale2 systems
- Glen Echo Park1 system
- Grantwood Village1 system
- Greendale1 system
- Green Park1 system
- Hanley Hills1 system
- Hazelwood1 system
- Hillsdale1 system
- Huntleigh1 system
- Jennings1 system
- Kinloch1 system
- Kirkwood1 system
- Ladue1 system
- Lakeshire1 system
- Lemay1 system
- Manchester2 systems
- Maplewood1 system
- Marlborough1 system
- Maryland Heights1 system
- Mehlville1 system
- Moline Acres1 system
- Normandy1 system
- Northwoods1 system
- Norwood Court1 system
- Oakland2 systems
- Oakville1 system
- Old Jamestown1 system
- Olivette1 system
- Overland1 system
- Pagedale1 system
- Pasadena Hills1 system
- Pasadena Park1 system
- Pine Lawn1 system
- Richmond Heights1 system
- Riverview1 system
- Rock Hill1 system
- Sappington1 system
- Shrewsbury1 system
- Spanish Lake1 system
- St. Ann1 system
- St. George1 system
- St. John1 system
- Sunset Hills2 systems
- Sycamore Hills1 system
- Town and Country1 system
- Twin Oaks1 system
- University City1 system
- Uplands Park1 system
- Valley Park1 system
- Velda City1 system
- Velda Village Hills1 system
- Vinita Park1 system
- Warson Woods1 system
- Webster Groves1 system
- Wellston1 system
- Westwood1 system
- Wilbur Park1 system
- Wildwood3 systems
- Winchester1 system
- Woodson Terrace1 system
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations