Tapcensus

Simazine violations in Missouri

20 active public water systems in Missouri had a Simazine violation in the past three years, 1 of them in the latest quarter of EPA's data. What Simazine is and why it matters.

Health effects: Chronic exposure to simazine is associated with potential cancer risk; EPA classifies it as a possible human carcinogen (Group C) based on animal studies. Blood and nervous system effects have also been observed in animal studies. Long-term exposure at levels above the MCL is the primary concern for public water system violations.

Systems with a Simazine violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Clarkton PWS
Clarkton · Dunklin County
1,124 7 0
Monroe City PWS
Monroe City · Monroe County
2,500 4 0
Memphis PWS
Memphis · Scotland County
1,822 7 0
Adrian PWS
Adrian · Bates County
1,635 7 2
Ozark Correctional Center
Fordland · Webster County
900 6 0
Van Buren PWS
Van Buren · Carter County
819 3 1
Ellington PWS
Ellington · Reynolds County
790 4 1
S K & M Water and Sewer Company
Perry County
750 7 0
Greenville PWS
Greenville · Wayne County
497 1 0
Fisk PWS
Fisk · Butler County
342 8 0
Mill Spring
Frohna · Perry County
250 5 1
Clear Water Acres Subd
Blue Eye · Taney County
175 2 0
Vanduser PWS
Vanduser · Scott County
168 6 1
Waynesville High Point Estates
Waynesville · Pulaski County
165 1 0
Roy L Utilities
Montgomery County
150 3 1
Mill Spring PWS
Mill Spring · Wayne County
112 8 0
Whiteside Hidden Acres
Hickory County
92 9 4
Crestview MHP
Pettis County
35 11 4
Joplin Humane Society
Jasper County
30 1 0
Lake Northwoods Utility INC
Gasconade County
25 6 3
About this data

A system is counted once if any of its violations in the past three years involved Simazine, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Simazine alone.

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.