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The goal of this project is to improve water quality in the Anacostia and Potomac Rivers for the benefit of District residents, visitors, wildlife, and the environment, while providing high quality outdoor recreational space and facilities for children and adults to learn, play, and connect with nature. A further goal of the project is to reduce the stormwater pollutants that enter the local waters of the District (i.e. rivers, streams, estuaries,) as required under the applicable EPA National Pollutant Discharge Elimination System (NPDES) permit for the District’s municipal separate storm sewer system (MS4).
The Dwight A. Mosley Sports Complex/Taft Recreation Center is located at 20th and Otis Street, NE Washington, DC, 20018. This 9-acre property is in the Anacostia River Watershed with 1.9 acres of impervious cover in the Municipal Separate Storm Sewer System (MS4). This project involved the mitigation of the impervious cover on the site and the installation of four bioretention systems that capture and treat drainage from the tennis courts, the basketball courts, and the compacted baseball fields. A Bioretention is a vegetated stormwater management system that mimics the natural environment to reduce stormwater volumes and pollutants for the purpose of restoring our streams and rivers. Together, the four bioretention systems installed for this project manage 127,043 square feet of contributing drainage area.
A bioretention provides the following benefits:
- Reduces stormwater runoff
- Slows stormwater flows
- Removes stormwater pollutants
- Provides habitat for birds, bees, and other pollinators
- Increases biodiversity
- Improves air quality
- Reduces air temperatures
By capturing stormwater and by treating the pollutants stormwater carries, a bioretention helps protect and restore our streams and rivers.
Project Status: Complete
- Public Meeting - April 4 - View Meeting Flyer
- DPR III Stormwater Retrofit Project - Public Meeting Recording (4.4.24)
- DPR III Stormwater Retrofit Project - Public Meeting Recording (10.26.2023)
For questions or more information about this project, please contact: [email protected].

