All water systems in Missouri
2,835 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mound City PWS Mound City · Holt County |
1,159 | 0 | 0 | |
|
Cole Camp PWS Cole Camp · Benton County |
1,150 | 1 | 0 | |
|
Henry County Pwsd 4 Blairstown, Urich · Henry County |
1,140 | 0 | 0 | |
|
Holt County Pwsd 1 Holt County |
1,140 | 1 | 0 | |
|
NW Cass County Water Resource District Cass County |
1,138 | 0 | 0 | |
|
Miner PWS Scott County |
1,135 | 2 | 1 | |
|
Clarkton PWS Clarkton · Dunklin County |
1,124 | 7 | 0 | |
|
Dent County Pwsd 1 Salem · Dent County |
1,122 | 1 | 0 | |
|
LA Monte PWS Lamonte · Pettis County |
1,120 | 1 | 1 | |
|
Pulaski County Pwsd 3 Crocker · Pulaski County |
1,113 | 2 | 1 | |
|
Glasgow PWS Glasgow · Howard County |
1,103 | 4 | 1 | |
|
American Foods Group Warren County |
1,100 | 1 | 1 | |
|
King City PWS King City · Gentry County |
1,100 | 2 | 0 | |
|
Lake Sherwood Subd Warren County |
1,100 | 4 | 0 | |
|
Liberty Utilities Venice Taney County |
1,100 | 3 | 3 | |
|
Lincoln PWS Lincoln · Benton County |
1,100 | 0 | 0 | |
|
MO Eastern Correctional Center St. Louis County |
1,100 | 0 | 0 | |
|
Montauk State Park Salem · Dent County |
1,100 | 0 | 0 | |
|
Purdy PWS Purdy · Barry County |
1,100 | 0 | 0 | |
|
Simmons Foods INC McDonald County |
1,100 | 0 | 0 | |
|
South Callaway County R II Schools Mokane · Callaway County |
1,100 | 0 | 0 | |
|
Maysville PWS Maysville · DeKalb County |
1,096 | 5 | 0 | |
|
Stover PWS Stover · Morgan County |
1,094 | 1 | 1 | |
|
New Franklin PWS New Franklin · Howard County |
1,089 | 1 | 0 | |
|
Lake Waukomis PWS Parkville · Platte County |
1,083 | 2 | 0 | |
|
Clinton County Pwsd 1 Trimble · Clinton County |
1,080 | 0 | 0 | |
|
Jcpsd Summer Set Jefferson County |
1,080 | 1 | 0 | |
|
Chariton County Pwsd 2 Brunswick · Chariton County |
1,078 | 3 | 0 | |
|
Encounter Cove Camp & Conference Center Camden County |
1,052 | 2 | 0 | |
|
Appleton City PWS Appleton City · St. Clair County |
1,050 | 2 | 0 | |
|
Humansville PWS Humansville · Polk County |
1,048 | 2 | 2 | |
|
Billings PWS Billings · Christian County |
1,035 | 0 | 0 | |
|
Clay County Pwsd 4 Liberty · Clay County |
1,032 | 1 | 0 | |
|
Edina PWS Edina · Knox County |
1,014 | 2 | 0 | |
|
MO American Maplewood Subdivision Pettis County |
1,008 | 0 | 0 | |
|
Lincoln County Pwsd 2 Lincoln County |
1,005 | 0 | 0 | |
|
Auxvasse PWS Auxvasse · Callaway County |
1,001 | 2 | 0 | |
|
Alton PWS Alton · Oregon County |
1,000 | 0 | 0 | |
|
Church of God Monark Springs Campground Newton County |
1,000 | 0 | 0 | |
|
Dollar General #16263 Joplin Newton County |
1,000 | 0 | 0 | |
|
Georges Processing INC Barry County |
1,000 | 1 | 0 | |
|
Hoods Service Center INC Greene County |
1,000 | 0 | 0 | |
|
Kingston K 14 School Primary Washington County |
1,000 | 0 | 0 | |
|
Ozark Natl River Alley Spring Van Buren · Shannon County |
1,000 | 0 | 0 | |
|
Pettis/johnson/saline Pwsd 1 Saline · Johnson County |
1,000 | 3 | 1 | |
|
Shepherd of the Hills Taney County |
1,000 | 3 | 0 | |
|
Unity Village Unity Village · Jackson County |
1,000 | 2 | 0 | |
|
Lake Tapawingo PWS Jackson County |
995 | 2 | 0 | |
|
Laurie PWS Laurie · Morgan County |
990 | 2 | 1 | |
|
Sweet Pea PWS Osage Beach · Camden County |
980 | 2 | 1 |
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.