Stormwater Management

Stormwater management has evolved from efforts to quickly drain the runoff from rainfall from streets and other elements of the built environment, which helps prevent flooding, to complex programs that also reduce the pollutants carried by stormwater runoff. These efforts employ a variety of practices that range from constructed ponds to rainfall “gardens” that infiltrate runoff before it reaches the storm drain network.

There are stormwater management programs in each of COG’s member jurisdictions. These programs must meet federal requirements under the Clean Water Act, plus additional state regulatory requirements. The members meet these requirements primarily through compliance with municipal separate storm sewer system permits, known as MS4s.

COG staff assists members in meeting their stormwater management requirements through workshops, peer exchanges, and other ways of sharing information across the region. In Maryland, COG staff coordinates, in conjunction with the Maryland Association of Counties, a dialogue between a statewide group of local governments with (MS4 permits and the Maryland Department of the Environment on regulatory issues. Because the cost of their stormwater management programs is increasing rapidly in response to new regulatory requirements, COG staff is also working with its members to save money on stormwater procurement.

News & Multimedia

Results: 22 found.
  • Fairfax_and_PG_web

    Officials celebrate 60 years of partnership

    December 14, 2017

    At COG’s annual membership meeting on December 13, government, business, and nonprofit leaders gathered together to celebrate the organization’s 60th...

  • News

    COG, regional water utilities to 'Imagine a Day without Water' on Oct. 12

    October 5, 2017

    COG and its water utility partners on the Community Engagement Campaign (CEC) will join the water community in a nationwide invitation to “Imagine a Day without...

  • tom_grizzard_web

    Thomas J. Grizzard Jr. remembered for his work on regional water quality

    July 10, 2017

    Thomas J. Grizzard, Jr., professor emeritus of civil and environmental engineering at Virginia Tech and former director of the Occoquan Watershed Monitoring...

  • Anacostia_Chesapeake_Bay_Program_Flickr_Crop

    Get 'Back to the Bay' during Chesapeake Bay Awareness Week

    June 5, 2017

    Maryland, Virginia, and Pennsylvania have designated June 3-11 as Chesapeake Bay Awareness Week to recognize the efforts of the many partners working to improve...

  • Chesapeake Bay

    Daniel Sze: Everyone wins when we work together for clean water

    April 20, 2017

    Regional Chesapeake Bay restoration efforts are making metropolitan Washington a better place to live, work, and play, according to COG’s Chesapeake Bay and...

  • Bethesda_Row_by_ehien_on_flickr-shirtfixed

    TLC sets the stage for new local projects

    June 7, 2016

    What do a redesigned New Hampshire Avenue with bike and bus lanes in Takoma Park, a spruced-up 19th Street NW with a raingarden and benches in the District of...

  • Craig_Rice_Bay_Photo_Crop

    Metropolitan Washington Celebrates Chesapeake Bay Awareness Week

    June 3, 2016

    Maryland, Virginia, and Pennsylvania have designated June 4-12 as Chesapeake Bay Awareness Week. Local governments and water utilities across metropolitan...

Results: 22 found.