Tapcensus

Dichloromethane (Methylene Chloride) violations in Maryland

2 active public water systems in Maryland had a Dichloromethane (Methylene Chloride) violation in the past three years. What Dichloromethane (Methylene Chloride) is and why it matters.

Health effects: Chronic exposure to dichloromethane is associated with liver and kidney damage and neurological effects. EPA classifies it as a probable human carcinogen (Group B2); it is metabolized in the body to carbon monoxide and has been linked to cardiovascular stress. Workers in industrial settings and communities near manufacturing sites face the greatest risk.

Systems with a Dichloromethane (Methylene Chloride) 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 Dichloromethane (Methylene Chloride), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Dichloromethane (Methylene Chloride) 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.