Federal requirements now require the clean-up of urban runoff before it reaches receiving waters.  This fact sheet (PDF, 3.2 MB) provides some least-cost methods for meeting these requirements – by using nature’s systems to handle drainage water.

Correction: In the "Urban Runoff Tied to Pollution and Flooding" section of this document, National Pollutant Discharge Elimination System (NPDES) was incorrectly referred to as National Pollution Discharge Elimination System. This has been corrected.

Urban Stormwater Management (PDF, 3.2 MB)