All water systems in Missouri
2,835 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Franklin County Pwsd 3 Gray Summit, Labadie, Villa Ridge · Franklin County |
8,250 | 0 | 0 | |
|
Lafayette County Pwsd 1 Odessa · Lafayette County |
8,250 | 0 | 0 | |
|
Warrenton PWS Warrenton · Warren County |
8,208 | 0 | 0 | |
|
Dexter PWS Dexter · Stoddard County |
8,200 | 1 | 0 | |
|
Nevada PWS Nevada · Vernon County |
8,198 | 1 | 1 | |
|
Carl Junction PWS Carl Junction · Jasper County |
8,142 | 2 | 0 | |
|
Pulaski County Pwsd 2 Waynesville · Pulaski County |
8,038 | 1 | 0 | |
|
Clark County Cons Pwsd 1 Williamstown · Clark County |
8,000 | 1 | 0 | |
|
Jefferson County Pwsd 5 Jefferson County |
8,000 | 1 | 1 | |
|
Boonville PWS Boonville · Cooper County |
7,964 | 4 | 1 | |
|
Camden County Pwsd 4 Horseshoe Bend Camden County |
7,912 | 6 | 0 | |
|
Ralls County Pwsd 1 Ralls County |
7,662 | 0 | 0 | |
|
Dekalb County Pwsd 1 Clarksdale · DeKalb County |
7,635 | 1 | 0 | |
|
Pike County Pwsd 1 Bowling Green · Pike County |
7,590 | 0 | 0 | |
|
Cole County Pwsd 4 Cole County |
7,568 | 2 | 1 | |
|
Adair County Pwsd 1 Kirksville · Adair County |
7,500 | 0 | 0 | |
|
Jefferson County Pwsd 6 Jefferson County |
7,500 | 0 | 0 | |
|
Marshfield PWS Marshfield · Webster County |
7,425 | 1 | 0 | |
|
Laf JO Saline County Cons Pwsd 2 Johnson County |
7,180 | 0 | 0 | |
|
Sullivan PWS Sullivan · Crawford County |
7,081 | 0 | 0 | |
|
Platte County Cons Pwsd 1 Waldron · Platte County |
7,074 | 1 | 1 | |
|
Monroe County Pwsd 2 Paris · Audrain County |
6,700 | 3 | 0 | |
|
Cannon Pwsd 1 Perry · Ralls County |
6,482 | 2 | 0 | |
|
Boone County Pwsd 4 Hallsville · Boone County |
6,455 | 0 | 0 | |
|
Nodaway County Pwsd 1 Maryville · Nodaway County |
6,428 | 1 | 0 | |
|
Desoto PWS Desoto · Jefferson County |
6,400 | 0 | 0 | |
|
Peculiar PWS Peculiar · Cass County |
6,226 | 2 | 1 | |
|
Jefferson County Pwsd 7 Jefferson County |
6,100 | 2 | 0 | |
|
Laclede County Pwsd 3 Lebanon · Laclede County |
6,075 | 1 | 0 | |
|
Big Cedar Lodge Resort Taney County |
6,067 | 0 | 0 | |
|
Cass County Pwsd 9 Harrisonville · Cass County |
6,063 | 0 | 0 | |
|
Andrew County Pwsd 1 Savannah · Andrew County |
6,042 | 1 | 0 | |
|
Pemiscot County Con Pwsd 1 Hayti, Rives · Dunklin County |
6,042 | 0 | 0 | |
|
Pacific PWS Pacific · Franklin County |
6,000 | 4 | 1 | |
|
Taney County Pwsd 3 Branson · Taney County |
6,000 | 1 | 0 | |
|
Charleston PWS Charleston · Mississippi County |
5,900 | 0 | 0 | |
|
Richmond PWS Richmond · Ray County |
5,797 | 1 | 0 | |
|
Jackson County Pwsd 12 Greenwood · Jackson County |
5,695 | 1 | 0 | |
|
Rogersville PWS Rogersville · Webster County |
5,602 | 2 | 0 | |
|
Pevely PWS Pevely · Jefferson County |
5,600 | 2 | 0 | |
|
Trenton Municipal Utilities PWS Trenton · Grundy County |
5,600 | 2 | 1 | |
|
Caruthersville PWS Caruthersville · Pemiscot County |
5,518 | 4 | 1 | |
|
Jasper County Pwsd 1 Carl Junction · Jasper County |
5,500 | 2 | 0 | |
|
Taney County Pwsd 2 Powersite · Taney County |
5,500 | 1 | 1 | |
|
Macon PWS Macon · Macon County |
5,489 | 0 | 0 | |
|
Waynesville PWS Waynesville · Pulaski County |
5,460 | 3 | 1 | |
|
Johnson County Pwsd 3 Warrensburg · Johnson County |
5,317 | 0 | 0 | |
|
Savannah PWS Savannah · Andrew County |
5,249 | 2 | 1 | |
|
Odessa PWS Odessa · Lafayette County |
5,202 | 1 | 1 | |
|
Chariton Linn County Pwsd 3 Brookfield · Linn County |
5,200 | 0 | 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.