Tapcensus

Beryllium violations in Maryland

5 active public water systems in Maryland had a Beryllium violation in the past three years. What Beryllium is and why it matters.

Health effects: Chronic oral exposure to beryllium is associated with intestinal lesions and bone damage. EPA classifies beryllium as a probable human carcinogen (Group B2) based on animal evidence and limited human data. Occupational inhalation exposure causes a distinct lung disease (berylliosis), but the oral route primarily targets the GI tract and bone.

Systems with a Beryllium violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
ST Johns Lutheran Church and School
Baltimore County 		140 4 0
Barrelville
Allegany County 		130 7 2
Powrmatic Inc.
Carroll County 		35 4 1
Our House Job Training Center for Youth
Montgomery County 		30 5 1
Calvert Gateway & McDonalds # 16243
Calvert County 		25 3 0
About this data

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