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October 13, 2000
New Stormwater, Grading and Drainage Control Code Director's Rules Available for Public Review
The following draft Directors' Rules are available for public review and comment, October 16-30, 2000 (Ordinance Authority 22.800 - 22.808):
  • Draft DR 26-2000, Flow Control Technical Requirements Manual - details detention requirements and design specifications for site design alternatives.

  • Draft DR 27-2000, Stormwater Treatment Technical Requirements - details the threshold for the requirement to treat stormwater runoff and the design specifications for stormwater treatment facilities.
Background
The State Department of Ecology has mandated that Seattle adopt additional stormwater control regulations as a condition of the City's current National Pollution Discharge Elimination System permit for its stormwater system. To be compliant, the City's regulations must be equivalent to Ecology's 1992 stormwater manual.

To meet these requirements, amendments to Seattle’s existing Stormwater, Grading and Drainage Control Code (Ordinance 119965) were adopted by City Council in a 9-0 vote and signed into law by the Mayor on June 5, 2000. Most of the new requirements went into effect on July 5, 2000.

Many of the amended provisions of the Stormwater, Grading and Drainage Control Code are being implemented through Directors' Rules that contain more detailed requirements specifying the methods to be used to comply with the Code. These new rules will replace most of the current drainage control Director's Rules and will be administered jointly by DCLU and Seattle Public Utilities.

In addition to the draft rules listed above, two rules implementing changes to the Stormwater, Grading and Drainage Control Code became effective on July 5, 2000: DR 16-2000 Construction Stormwater Control Technical Requirements Manual (2.7MB PDF), and DR 17-2000, Source Control Technical Requirements Manual (1.6MB PDF). 

For More Information
If you have questions or comments or wish to receive paper copies of the draft rules, please contact:

Mary Beth Binns
Department of Design, Construction and Land Use
710 Second Avenue, Suite 700
Seattle, WA 98012
marybeth.binns@ci.seattle.wa.us
(206) 233-7198

Department of Planning and Development (DPD)