Tapcensus

Thallium violations in Mississippi

7 active public water systems in Mississippi had a Thallium violation in the past three years. What Thallium is and why it matters.

Health effects: Chronic thallium exposure causes hair loss, changes in blood chemistry, kidney damage, intestinal problems, and liver effects. It can also impair the nervous system. EPA has classified thallium as a possible human carcinogen (Group C). The very low MCL reflects its acute toxicity even at small doses.

Systems with a Thallium violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Magnolia Rural Water Assn
Pike County
2,922 9 0
Looxahoma Water Association
Tate County
792 8 1
Romola Water Association
Claiborne County
600 9 1
Town of Cary
Sharkey County
591 9 0
Valley Park W/a
Issaquena County
533 6 1
Town of Georgetown
Copiah County
465 3 0
MT Zion Water Association
Webster County
288 4 0
About this data

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