Stormwater Code & Rules Update

An Example of Stormwater Control Methods
Our Stormwater Code protects people, property, and the environment by controlling how rain water runs off of streets, buildings, and parking lots.
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Project Documents

The following document outlines the summary of changes we made to the manual since the 2009 version.

Redline versions of the Stormwater Manual can be found on our background page.

Legislative documents for the 2016 City of Seattle amendments to the Building, Residential, Land Use, and Grading codes to be compliant with the Washington State Department of Ecology Stormwater Permit project applicability requirements.

 

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