Northern Virginia Clean Water Partners
As urbanization and construction of streets occurred within the Town of Vienna, a network of inlets, pipes, and outlets were installed to direct the flow of rainwater into the nearest local stream. Because this system of pipes is not connected to any sort of water treatment facility, it is very important that nothing except rainwater enter the system through inlets located near residents' homes. Do not put pet waste, motor oil, grease, fertilizer, grass, leaves, or other debris and materials into stormwater inlets.
The Town's stormwater system is operated under a permit from the state of Virginia per requirements of 4VAC50-60, "General Virginia Stormwater Management Program (VSMP) Permit for Discharges of Stormwater from Small Municipal Separate Storm Sewer Systems." The Town originally was issued an MS-4 permit in 2003 (Permit VAR040066). The current five-year permit will expire October 31, 2023.
To view the Municipal Separate Storm Sewer System (MS-4) program plan and current MS-4 Annual Report, please see the links at the bottom of this page. This version of the MS-4 program plan supersedes the plan dated September 23, 2014 and represents the annual update required by the MS-4 permit.
Mandated by Congress under the Clean Water Act and implemented in Virginia by the Department of Environmental Quality (DEQ), the purpose of VSMP permit regulations is to protect water quality from urban stormwater pollution. Stormwater runoff in urban areas may contain sediments, fertilizers, pesticides, bacteria, motor oil, and other pollutants generated by various land uses and human activities. When left uncontrolled, pollution can result in impairment or destruction of fish, wildlife, and aquatic-life habitats; a loss in aesthetic value; and threats to public safety and health.
To report an environmental concern, please email DPW or call 703-255-6380, or report online.
For more information about the storm drain network located near your home, contact the Department of Public Works.
For more information on preventing stormwater runoff pollution, visit the Northern Virginia Clean Water Partners website.