Arlington, DC are ‘most vulnerable cities in the US’: Boil water advisory points out lack of backup supply

This week’s extensive, and brief boil water advisory for all of D.C. and most of Arlington, Virginia, demonstrated a major vulnerability in the national capital region’s drinking water supply. The Travilah Quarry in Rockville, Maryland, could eventually become a reservoir to provide a backup water supply, if the Potomar River were unavailable.(Aggregate Industries) The Travilah…