Updating Stormwater Regulations - Project Documents

Project Documents

Draft Documents for Public Review #3 - January 11 through February 19, 2021

If you wish to submit a comment, please complete the comment template and email it to SPUStormwaterCodeRev@seattle.gov or mail your comments to:

Sherell Ehlers
Seattle Public Utilities
700 Fifth Ave, Suite 4400
PO Box 34018
Seattle, WA 98124-4018

Email correspondence is preferred.

Note: The actual Stormwater Code and Manual changes are still to be determined. However, our regulations must be equivalent to Ecology's NPDES 2019 Stormwater Permit (Ecology Permit).

SEPA Determination of Non-Significance December 10-24, 2020

We have conducted a State Environmental Protection Act (SEPA) environmental review of the City of Seattle's proposed 2021 Stormwater Code and Rule Update. The lead agency, Seattle Public Utilities (SPU), has issued a Determination of Non-Significance (DNS). This proposal involves the adoption of ordinances amending the City of Seattle's Stormwater Code and associated Directors' Rule. 

You can see all of the documents related to the SEPA review and DNS listed under the headings below.

Draft Documents for Public Review #2 - November 2 - November 20, 2020

Draft Documents for Public Review #1 - April 1 through May 16 20, 2020

These documents were posted for the review period of April 1 through May 16 2020.