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: 16 found.
  • 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...

  • Staff from Loudoun Water, COG, and the Water Research Foundation

    Heart of COG: Lisa Ragain

    January 6, 2016

    Although COG Principal Water Resources Planner Lisa Ragain has been working on water protection and communication since the 1990s, her expertise does not end...

  • News

    COG Report Details Regional Infrastructure Needs

    January 15, 2015

    2015 State of the Region: Infrastructure Report covers transportation, water, energy, public buildings, and public safety communications systems. Throughout...

  • InfraCoverRF-507x315

    2014 COG Series Provides In-Depth Look at Region's Infrastructure

    December 30, 2014

    In 2014 the Board of Directors of the Metropolitan Washington Council of Governments identified regional infrastructure as its focus and held a series on...

Results: 16 found.