Tapcensus

1,2-Dichloropropane violations in Maryland

2 active public water systems in Maryland had a 1,2-Dichloropropane violation in the past three years. What 1,2-Dichloropropane is and why it matters.

Health effects: Chronic exposure to 1,2-dichloropropane is associated with liver and kidney damage. EPA classifies it as a probable human carcinogen (Group B2) based on animal evidence of liver and mammary gland tumors. Long-term exposure above the MCL is the primary concern; communities near Superfund sites and former agricultural fumigation areas face elevated exposure risk.

Systems with a 1,2-Dichloropropane violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
ST Johns Lutheran Church and School
Baltimore County 		140 4 0
Powrmatic Inc.
Carroll County 		35 4 1
About this data

A system is counted once if any of its violations in the past three years involved 1,2-Dichloropropane, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 1,2-Dichloropropane 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 Maryland 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.