Archived stormwater documents
King County, Washington
This page contains links to outdated Stormwater documents archived for future reference for cases where they're referenced in municipal codes.
Older versions of the Surface Water Design Manual (SWDM)
- 2005 SWDM
- 2005 SWDM Errata
- 1969 SWDM (2.03 MB) (Acrobat pdf)
- 1977 SWDM (3.37 MB) (Acrobat pdf)
- 1979 SWDM (10.43 MB) (Acrobat pdf)
- 1990 SWDM (25.27 MB (Acrobat pdf)
- 1998 SWDM (35.7 MB) (Acrobat pdf)
2005 Stormwater Pollution Prevention Manual
Also known as the BMP manual , this document provides guidance for businesses, public facilities, and other non-residential entities in unincorporated King County on actions we are all required to take to reduce contamination of stormwater, surface water, and groundwater.