Company Profile
District Of Columbia Water and Sewer Authority
Company Overview
DC Water's service area is approximately 725 square miles and provides retail water and wastewater (sewer) service to the District of Columbia. DC Water provides wholesale wastewater treatment service to Montgomery and Prince George's counties in Maryland and Fairfax and Loudoun counties in Virginia. Blue Plains Advanced Wastewater Treatment Plant Covers 150 acres on the bank of the Potomac River at the southernmost tip of the District and is the largest advanced wastewater treatment facility in the world.