Low impact water control for buildings.EPA, in collaboration with the U.S. General Services Administration, is demonstrating low impact development (LID) and sustainable stormwater management practices in a landscape renovation project at its Federal Triangle Headquarters in Washington, DC. The project is not only potentially reducing the quantity and improving the quality of stormwater runoff, but it also demonstrates that sustainable design and LID can be implemented or incorporated in high profile, urban sites with rigorous aesthetic design requirements.