Water Treatment Company of
Maryland, Inc.

10620 Riggs Hill Road
Unit J
Jessup, Maryland

301.776.1510 FAX

The Region's
Premier Water Treatment Company


National Leader in Legionella Testing

Our nationally-respected testing program offers accurate, timely, quantitative test results of both living and dead legionella bacteria utilizing the DFA (direct fluorescent antibody) method. Any test results that exceed detectable bacteria levels are processed further via the culture method  to determine how many bacteria are actually living in the sample. DOWNLOAD our Testing Kit and literature here.



About Arc

Since 1963, Arc Water Treatment Company has earned a reputation for reliability and proven performance serving the commercial water treatment needs of our customers. Based in Jessup, Maryland, Arc is conveniently located to serve the entire Chesapeake Bay Region, including Maryland, The District of Columbia, Northern Virginia, Delaware, Pennsylvania, New Jersey, and eastern West Virginia. The range of Arc’s water treatment capabilities include Complete Water Treatment Services, Specialized Treatment Chemicals for all HVAC systems, State-of-the-Art Chemical Feeding Equipment, expert technical support and a tradition of skill, efficiency and dependability. Arc is proud to be “The Region’s Premier Water Treatment Company”.

Edwin F. Goldstein, P. E., Chairman, a chemical engineer, founded ARC in Philadelphia in 1963 and has made service quality Arc's first priority. In every facet of the company, ARC's goal is to offer our customers top quality and excellent value for their dollar. David L. Goldstein, President, a graduate of the University of Maryland, has been an integral part of ARC's continuing success since 1980. With David as our President, we look forward to many more years of success.

service dept