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The 2009 Draft Update of King County Surface Water Design Manual (SWDM)

Click here or on the title above to download the draft SWDM (13 MB). The draft manual was provided to the public for review in October, 2008. The proposed changes to the manual are seen as track changes edits.

For the current version of the SWDM, visit the Surface Water Design Manual page.

Files are available for download in Adobe Acrobat PDF format.

The 2009 Draft Update of King County Stormwater Pollution Prevention Manual (SPPM)

Click here or on the title above to download the draft SPPM (2.5 MB). The draft manual was provided to the public for review in October, 2008. The proposed changes to the manual are seen as track changes edits.

For the final version of the SPPM, visit the Stormwater Pollution Prevention Manual page.

For questions about the stormwater website, please contact Blair Scott, Water Quality Planner, King County Stormwater Services Section.