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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

Draft documents for the 2016 City of Seattle Stormwater Code.

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

 State Environmental Policy Act (SEPA) Documents: 

Coming Soon – Final Draft of 2016 Stormwater Manual (anticipated mid-September 2015)

Draft documents for the 2016 City of Seattle Stormwater Manual (submitted to Washington State Department of Ecology April 23, 2014):

The following documents outline the April 2014 summary of changes we made to the manual.

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