The Metropolitan Washington Airports Authority (Airports Authority) has been issued a Municipal Separate Storm Sewer System (MS4) permit for the Dulles Toll Road (DTR) by the Virginia Department of Environmental Quality.  The MS4 permit authorizes the discharge of stormwater and authorized non-stormwater discharges from the DTR.  

Coverage Letter and General Permit

The Airports Authority has developed and implemented a MS4 Program Plan to ensure compliance. Comments regarding the Airports Authority’s MS4 Program Plan can be provided by submittal of the form below or directed to [email protected].

MS4 Program Plan
MS4 Public Comment Form

The DTR property is located within the Chesapeake Bay Watershed.  In accordance with MS4 permit, the Airports Authority developed and implemented an action plan to comply with the Chesapeake Bay Total Maximum Daily Load (TMDL).  

Chesapeake Bay TMDL Action Plan

The Airports Authority has implemented an illicit discharge detection and elimination (IDDE) program. 

If you have witnessed an illicit discharge or illegal dumping, please complete the online reporting form.
Illicit Discharge and Spill Report Form
Land Disturbing Compliant Form

The Airports Authority’s MS4 annual reports are as follows: