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National Drinking Water Database


Dichlorobiphenyl in Maryland


Dichlorobiphenyl is a member of the polychlorinated biphenyl (PCB) group of industrial chemicals used as dielectrics, coolants and lubricants in electrical equipment; PCBs contaminate water by leaching from landfills or other waste deposits.

The Most Polluted Communities in Maryland

1 water utilities reported detecting Dichlorobiphenyl in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Dichlorobiphenyl level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Maryland American Water Company
Bel Air, MD
13,2001 of 20.05 ppb
(0 to 0.1 ppb)

Health Based Limits for Dichlorobiphenyl

There are no health based standards that EWG is using for this chemical

Violation Summary for Dichlorobiphenyl in Maryland

There are no violations reported for this contaminant in Maryland