What is the difference between a Stormwater Pollution Prevention Plan (SWPPP) and a Stormwater Control Plan (SWCP)?

A Stormwater Pollution Prevention Plan (SWPPP) is a document that describes how a project will prevent pollution during the construction process.  This document details how erosion will be prevented and how sediment will be controlled, as well as how other construction-related pollutants, such as concrete dust and fluids from construction equipment, will be prevented.  SWPPPs, which are required under the California Construction General Permit, must be submitted for projects disturbing at least 1 acre of soil, and for certain projects involving less earthwork but pose special threats to water quality.  Smaller projects also are required to implement adequate erosion and sediment controls.

A Stormwater Control Plan (SWCP) is a document that details permanent stormwater management facilities (such as bioretention areas) that will be incorporated into development projects to treat stormwater runoff and control runoff rates and volumes after the construction process is completed.  SWCPs are required for projects that must implement permanent stormwater management facilities to comply with C.3 of the NPDES Permit.

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1. What are Area of Benefit (AOB) funds used for?
2. What are Best Management Practices (BMPs)?
3. What are Pollutants of Concern (POCs)?
4. What are the Public Works Counter hours of service, phone numbers, and location?
5. What can property owners do to help the County's maintenance efforts of private trees and other vegetation?
6. What can property owners do to prevent fallen leaves from creating blockages in the drainage system?
7. What do I do if my neighbor informed me that I am encroaching on his property?
8. What information should I provide when reporting a streetlight outage?
9. What is a cape seal?
10. What is a micro-surface seal?
11. What is a slurry seal?
12. What is a traffic Area of Benefit (AOB)?
13. What is a Watershed?
14. What is an illicit discharge and who do I call to report it?
15. What is an NOI and what permits does it cover?
16. What is C.3?
17. What is IPM and what are some ways I can try it?
18. What is NPDES and who oversees it?
19. What is the Adopt-A-Road Program?
20. What is the construction work occurring on a County Road or Flood Control Facility?
21. What is the CRIPP?
22. What is the design storm for my project?
23. What is the difference between a Stormwater Pollution Prevention Plan (SWPPP) and a Stormwater Control Plan (SWCP)?
24. What is the difference between point source and non-point source?
25. What is the difference between the County Watershed Program and the Contra Costa Clean Water Program?
26. What is the difference between the storm drain system and the sanitary sewer?
27. What is the Public Works Budget?
28. What projects are upcoming or currently advertised?
29. What should I do if I see someone dumping garbage on private or public property?
30. What is a Chip Seal?
31. What is the basis of the Area of Benefit (AOB) Program?
32. What is the County's responsibility in maintaining private drainage systems?
33. What is the drainage easement across my property? Can I build on it? What can I do on it?