What is the difference between the County Watershed Program and Contra Costa Clean Water Program?
Both the Contra Costa Clean Water Program and the County Watershed Program (CWP) are tasked with ensuring compliance with the Municipal Stormwater National Pollutant Discharge Elimination System (NPDES) Permit.
The NPDES permit is issued to the Clean Water Program, which is a collaboration between the County (represented by the County Watershed Program), the 19 incorporated cities and towns in the County, and the County Flood Control and Water Conservation District (“Co-Permittees”.)
The Clean Water Program (http://www.cccleanwater.org) has its own staff that interacts with regulatory and elected officials, and provides guidance to the Co-Permittees. The Co-Permittees benefit from these collaborative efforts which the individual jurisdictions time and money. Ultimately, however, each jurisdiction is individually responsible for administering the NPDES permit within the bounds of its jurisdiction.
Operationally, the County Watershed Program is a program within the Flood Control Division of the County’s Public Works Department. CWP is responsible for ensuring compliance with the NPDES permit in the unincorporated areas of the County.

Public Works Watershed Program

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1. What is a Watershed?
2. What is the difference between the County Watershed Program and Contra Costa Clean Water Program?
3. When is my street swept?
4. What is an illicit discharge and who do I call to report it?
5. What’s the difference between the storm drain system and the sanitary sewer?
6. What’s the difference between point source and non-point source?
7. What’s the difference between a Stormwater Pollution Prevention Plan (SWPPP) and a Stormwater Control Plan (SWCP)?
8. What is C.3?
9. What are ‘Best Management Practices’ (BMPs)?
10. What is NPDES and who oversees it?
11. What is an NOI and what permits does it cover?
12. What is IPM and what are some ways I can try it?
13. What are Pollutants of Concern (POCs)?