All water systems in Missouri
2,835 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Osage County Pwsd 3 Linn · Osage County |
2,800 | 1 | 1 | |
|
Owensville PWS Owensville · Gasconade County |
2,800 | 0 | 0 | |
|
Mountain View PWS Mountain View · Howell County |
2,791 | 2 | 0 | |
|
Hayti PWS Hayti · Pemiscot County |
2,789 | 3 | 0 | |
|
Ripley County Pwsd 2 Ripley County |
2,780 | 4 | 1 | |
|
Forsyth PWS Forsyth · Taney County |
2,730 | 3 | 0 | |
|
Oronogo PWS Oronogo · Jasper County |
2,719 | 1 | 0 | |
|
Harry S Truman Pwsd 2 Clinton · Henry County |
2,700 | 4 | 0 | |
|
Southwest Rural Water District 1 Barry County |
2,700 | 0 | 0 | |
|
East Prairie PWS East Prairie · Mississippi County |
2,696 | 3 | 2 | |
|
Bates County Pwsd 5 Bates County |
2,690 | 1 | 1 | |
|
Holden PWS Holden · Johnson County |
2,683 | 0 | 0 | |
|
Osage Beach East PWS Camden County |
2,611 | 0 | 0 | |
|
Bates County Pwsd 6 Bates County |
2,600 | 0 | 0 | |
|
Butler County Pwsd 3 Brosley · Butler County |
2,600 | 4 | 0 | |
|
Strafford PWS Strafford · Greene County |
2,600 | 1 | 1 | |
|
Cass County Pwsd 6 Lees Summit, Pleasant Hill · Cass County |
2,575 | 2 | 0 | |
|
Putnam County Pwsd 1 Unionville · Putnam County |
2,550 | 0 | 0 | |
|
MO American Lawson Lawson · Ray County |
2,546 | 0 | 0 | |
|
Versailles PWS Versailles · Morgan County |
2,539 | 2 | 0 | |
|
Jackson County Pwsd 17 Grain Valley · Jackson County |
2,530 | 0 | 0 | |
|
Potosi PWS Potosi · Washington County |
2,527 | 2 | 1 | |
|
Big Surf Waterpark INC Camden County |
2,500 | 1 | 1 | |
|
Concordia PWS Concordia · Lafayette County |
2,500 | 6 | 0 | |
|
Hermann PWS Hermann · Gasconade County |
2,500 | 1 | 0 | |
|
Licking PWS Licking · Texas County |
2,500 | 1 | 0 | |
|
Monroe City PWS Monroe City · Monroe County |
2,500 | 4 | 0 | |
|
Ray County Pwsd 1 Lawson · Ray County |
2,490 | 1 | 1 | |
|
MC Donald County Pwsd 1 McDonald County |
2,481 | 1 | 0 | |
|
Clay County Pwsd 9 Smithville · Clay County |
2,465 | 1 | 0 | |
|
Cooper County Consolidated Pwsd # 1 Boonville · Cooper County |
2,451 | 3 | 0 | |
|
Daviess County Pwsd 2 Jameson · Daviess County |
2,448 | 1 | 0 | |
|
Warsaw PWS Warsaw · Benton County |
2,402 | 2 | 0 | |
|
Cliffs at Long Creek Taney County |
2,400 | 1 | 1 | |
|
Texas County Pwsd 4 Licking · Texas County |
2,398 | 1 | 0 | |
|
Seneca PWS Seneca · Newton County |
2,390 | 1 | 0 | |
|
Plattsburg PWS Plattsburg · Clinton County |
2,354 | 2 | 1 | |
|
Bates County Pwsd 4 Foster · Bates County |
2,348 | 2 | 0 | |
|
Ripley County Pwsd 1 East Ripley County |
2,265 | 2 | 1 | |
|
Willow Springs PWS Willow Springs · Howell County |
2,250 | 1 | 1 | |
|
Clay County Pwsd 8 Kearney · Clay County |
2,243 | 1 | 1 | |
|
Livingston County Pwsd 2 Chillicothe · Livingston County |
2,215 | 2 | 0 | |
|
Marceline PWS Marceline · Linn County |
2,200 | 1 | 0 | |
|
Raintree Plantation Jefferson County |
2,200 | 1 | 0 | |
|
Thayer PWS Thayer · Oregon County |
2,200 | 2 | 0 | |
|
Daviess County Pwsd 1 Pattonsburg · Daviess County |
2,165 | 2 | 1 | |
|
Clever PWS Clever · Christian County |
2,139 | 0 | 0 | |
|
Houston PWS Houston · Texas County |
2,134 | 3 | 1 | |
|
Buchanan County Pwsd 1 Rushville · Buchanan County |
2,115 | 1 | 0 | |
|
Howard County Cons Pwsd 1 Franklin · Howard County |
2,100 | 2 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Missouri records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.