The Director of Seattle Public Utilities is proposing rule DWW-430.1, Flow Control Requirements for Projects in Identified Public Combined Sewer Basins.
State Environmental Policy Act (SEPA) Documents:
2015 Stormwater Code Revision to the 2009 City of Seattle Stormwater Code Legislative Package approved by the Mayor and City Council, effective May 24, 2015:
Draft documents for the 2016 City of Seattle Stormwater Code and Manual (submitted to Washington State Department of Ecology April 23, 2014):
The following documents outline the summary of changes we made to the code and manual.