As a result of the Third Term NPDES Municipal Stormwater Permits for Orange County, adopted by the Santa Ana and San Diego Regional Water Quality Control Boards in early 2002, the cities and County (collectively called Permittees) have enhanced existing program elements and developed additional ones and have updated the draft 2000 Drainage Area Management Plan (DAMP) as the 2003 DAMP.

The 2003 DAMP has been redesigned to serve as the foundation for a series of model programs, local implementation plans, and watershed implementation plans rather than a single document as in the past. The 2003 DAMP was developed through a process that involved public and private sector input and pubic review through the California Environmental Quality Act (CEQA) process.

The figure below represents the structure of the 2003 DAMP and provides links to the various documents. For general questions and comments on the 2003 DAMP, please contact Richard Boon of the County of Orange, Watershed and Coastal Resources Division.

2003 Drainage Area Management Plan Structure