Arlington County

Click on image to see water supply system diagram

*Note that diagram is simply a schematic representation of the major components of the water supply system. It is not drawn to scale, and symbols do not represent actual volumes or geographic orientation.

Your Water Supply

• Water Source

Arlington County gets its water from the Arlington County Department of Public Works (DPW), a water distribution agency, which purchases water from the Washington Aqueduct Division of the U.S. Army Corps of Engineers (WAD).
WAD gets its water from the Potomac River through intakes at Great Falls and Little Falls.


• Water Treatment

WAD has two water treatment plants, the McMillan and Dalecarlia plants. Generally, Arlington receives its water from the Dalecarlia plant.


• Water Quality

Read the Consumer Confidence Report on the DPW's website, or call Perry Sasser at 703-228-6578 to get a copy.


• Contact Information

Address: Arlington County Department of Public Works, 2100 Clarendon Blvd, Suite 717, Arlington, VA 22201
Phone: 703-228-6485 (normal business line); 703-228-6555 (after hours)
Fax: 703-228-6585
Email: PUBLICWORKS@co.arlington.va.us

Link to Arlington County's website:http://www.arlingtonva.us/dpw/