Public Water Systems
2,823 active public water systems in MO, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| St Charles Co PWSD #2 Wright City | O Fallon, MO | 3,550 | 83 | Clean |
| Bonne Terre PWS | Bonne Terre, MO | 3,537 | 521 | Clean |
| Carrollton PWS | Carrollton, MO | 3,514 | 8 | Clean |
| Sugar Creek PWS | Sugar Creek, MO | 3,500 | 10 | - |
| Bonne Terre Prison | Bonne Terre, MO | 3,500 | 32 | Clean |
| Farmington Correctional Center | Farmington, MO | 3,500 | 390 | Clean |
| Franklin County PWSD 1 | Washington, MO | 3,500 | 51 | Clean |
| Clay County PWSD 2 | Pleasant Valley, MO | 3,485 | 19 | - |
| Schuyler County Consolidated PWSD 1 | Queen City, MO | 3,482 | 18 | Detected |
| Clay County PWSD 3 | Holt, MO | 3,447 | 40 | Clean |
| Jasper County PWSD 2 | Webb City, MO | 3,383 | 37 | - |
| Scotland County Cons PWSD 1 | Memphis, MO | 3,360 | 4 | Detected |
| Texas County PWSD 1 | Roby, MO | 3,335 | 52 | - |
| Shelby County PWSD 1 | Shelbyville, MO | 3,300 | 5 | - |
| Bethany PWS | Bethany, MO | 3,292 | 66 | - |
| Cuba PWS | Cuba, MO | 3,292 | 61 | Clean |
| Cassville PWS | Cassville, MO | 3,290 | 6 | - |
| New Madrid PWS | New Madrid, MO | 3,250 | 21 | - |
| Louisiana PWS | Louisiana, MO | 3,244 | 213 | Clean |
| Canton PWS | Canton, MO | 3,200 | 41 | - |
| Mercer County PWSD 1 | Mercer, MO | 3,200 | 44 | Detected |
| Portageville PWS | Portageville, MO | 3,200 | 111 | - |
| Terre Du Lac | Des Peres, MO | 3,200 | 456 | - |
| Six Flags St Louis | Eureka, MO | 3,200 | 18 | - |
| Scott County PWSD 4 | Morley, MO | 3,150 | 6 | - |
| Vandalia PWS | Vandalia, MO | 3,140 | 166 | - |
| Osage Beach Premium Outlets | Osage Beach, MO | 3,100 | 80 | - |
| Buffalo PWS | Buffalo, MO | 3,084 | 56 | - |
| Buckner PWS | Buckner, MO | 3,076 | 21 | - |
| Cass County PWSD 10 | Peculiar, MO | 3,068 | 19 | - |
| Carroll County PWSD 1 | Carrollton, MO | 3,063 | 32 | - |
| Chaffee PWS | Chaffee, MO | 3,054 | 31 | - |
| Saline County PWSD 3 | Marshall, MO | 3,000 | 81 | - |
| Mississippi County PWSD 1 | Anniston, MO | 3,000 | 24 | - |
| Stoddard County PWSD 1 | Dexter, MO | 3,000 | 16 | Clean |
| Ava PWS | Ava, MO | 3,000 | 58 | - |
| Hillsboro PWS | Hillsboro, MO | 3,000 | 75 | - |
| Jefferson County PWSD 12 | Festus, MO | 3,000 | 7 | - |
| Putnam County PWSD 1 | Unionville, MO | 2,997 | 26 | - |
| Henry County PWSD 3 | Clinton, MO | 2,993 | 25 | - |
| East Prairie PWS | East Prairie, MO | 2,964 | 39 | - |
| Lathrop PWS | Lathrop, MO | 2,945 | 18 | - |
| Windsor PWS | Windsor, MO | 2,900 | 91 | - |
| Dunklin County PWSD 2 | Senath, MO | 2,900 | 43 | - |
| Nixa PWS Rde | Nixa, MO | 2,900 | 83 | - |
| Cass County PWSD 5 | Pleasant Hill, MO | 2,875 | 44 | - |
| Knob Noster PWS | Knob Noster, MO | 2,863 | 37 | - |
| Tipton PWS | Tipton, MO | 2,861 | 48 | Clean |
| Montgomery City PWS | Montgomery City, MO | 2,811 | 40 | - |
| Fayette PWS | Fayette, MO | 2,800 | 124 | - |