OC Water Quality Guidelines

Basin Plans
The document for each region of the State Water Quality Board's jurisdiction, Santa Ana and San Diego, is the Water Quality Control Plan, commonly referred to as the Basin Plan. It is the foundation for the regulatory programs of each regional board. The Basin Plan documents the beneficial uses of the region's ground and surface waters, existing water quality conditions, problems, and goals, and actions by the regional board and others that are necessary to achieve and maintain water quality standards.

Municipal National Pollutant Discharge Elimination System (NPDES) Permits
The permits of each region outline additional steps for a storm water management program and specify requirements to help protect the beneficial uses of the receiving waters. They require permittees to develop and implement Best Management Practices (BMPs) to control/reduce the discharge of pollutants to waters of the United States to the maximum extent practicable (MEP).
Drainage Area Management Plan
The draft 2000 Drainage Area Management Plan (DAMP) describes the Orange County Stormwater Program, implemented by the County of Orange and cities to comply with their jointly held Stormwater Permit. It is the principal policy and guidance document for the county wide NPDES Stormwater Program.
Orange County Stormwater Program Annual Status Report
The Annual Status Report is a requirement of the NPDES Permit for submittal to the Regional Boards and United States Environmental Protection Agency. The report presents an analysis and assessment of permit compliance activities for the past fiscal year as required by the permits.