Tapcensus

Benzene violations in Ohio

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

Health effects: Benzene is classified by EPA as a known human carcinogen (Group A). Long-term exposure causes leukemia, particularly acute myeloid leukemia (AML), and other blood disorders including aplastic anemia. There is no established safe threshold. Children and individuals with compromised immune systems are most vulnerable to hematological effects.

Systems with a Benzene violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Valley View Mennonite School and Church
Wayne County
60 3 1
Kings Island PWS
Warren County
31,753 2 0
Milford City PWS
Clermont County
6,700 2 1
Richwood Village PWS
Union County
2,200 6 2
Hillsdale School Pk-12 PWS
Ashland County
1,056 5 0
Darbydale Elementary School PWS
Franklin County
370 3 0
Springfield House Mimis House of Littles
Clark County
185 7 5
Grace Fellowship Center
Franklin County
130 3 2
Lmt Hartville
Stark County
130 4 1
Knox Elementary West Branch PWS
Columbiana County
116 2 0
Villa Maria Teresa Preschool
Trumbull County
84 2 1
Korda Manufacturing INC
Wayne County
47 1 0
Kidron, Inc. Well 3
Wayne County
45 1 0
Beach City Lumber PWS
Tuscarawas County
25 2 1
About this data

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