Do I need to prepare a Stormwater Pollution Prevention Plan (SWPPP)?

If your project disturbs one acre or more of land, you need to apply for coverage under the State Water Resources Control Board’s (SWRCB) National Pollutant Discharge Elimination System (NPDES) General Permit for Stormwater Associated with Construction Activity. The SWRCB also issues separate NPDES permits for some types of dewatering activities as well as linear construction projects, such as trenching for utilities. Refer to the SWRCB’s Stormwater Construction website for more information on NPDES permit requirements.

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1. What is an illicit discharge?
2. What is meant by "maximum extent practicable"?
3. Do I need to prepare a Stormwater Pollution Prevention Plan (SWPPP)?
4. Does the SWRCB review and approve SWPPPs?