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The original item was published from 6/8/2021 2:33:00 PM to 7/3/2021 12:00:01 AM.

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Snohomish County News

Posted on: June 8, 2021

[ARCHIVED] Snohomish County to Host Virtual Public Briefing on Proposed Drainage Manual Changes


Meghan Jordan                                                   Matt Phelps

Communications Specialist II                           Communications Specialist II                   

425-388-3918                                                     425-388-3126




Snohomish County to Host Virtual Public Briefing on Proposed 

Drainage Manual Changes


All five volumes are being updated and the county is currently taking comment


EVERETT, Wash., June 8, 2021 –  The Snohomish County Department of Conservation and Natural Resources (DCNR) is currently taking written comments on proposed changes to the Snohomish County Drainage Manual, due by 5 p.m., June 18, 2021. 


The Drainage Manual is being revised to meet requirements of the county’s National Pollutant Discharge Elimination System (NPDES) municipal stormwater permit. The Drainage Manual is one of three main elements that make up the county’s stormwater regulations, along with relevant chapters of Snohomish County code (primarily Chapters 30.63A and 30.63B SCC) and the Snohomish County Engineering Design and Development Standards (EDDS).  The Drainage Manual is adopted as a departmental rule by the DCNR Director. Revisions to the Drainage Manual must be adopted and effective by July 1.


Join the Snohomish County Executive’s Office and DCNR staff at 6:30 p.m. on Monday, June 14 for a Virtual Public Briefing to learn about the proposed 2021 updates to the Snohomish County Drainage Manual. 


                Virtual Public Briefing

  • When: Monday, June 14 at 6:30 p.m. (presentation to begin at 6:35 p.m.)
  • Zoom Webinar: The public can listen to the presentation remotely by clicking on the link or calling into the meeting with the phone number listed below.
    1. Link:
    2. Dial-in: 1-253-215-8782; meeting ID: 924 1387 2169


To submit public comments on the changes to the Drainage Manual, send them to or mail them to Bill Leif at 3000 Rockefeller Ave M/S 607, Everett, WA 98201. The public comment period for Drainage Manual revisions started on May 24. Only written comments received on or before 5 p.m., June 18, 2021 will be considered by the DCNR Director.


For more information about the rulemaking process, a summary of the drainage manual updates, and to view the public notice, visit the webpage:


About Snohomish County Conservation and Natural Resources

The Snohomish County Department of Conservation and Natural Resources (DCNR) includes the Division of Surface Water Management; the Division of Parks, Recreation and Tourism; the Office of Energy and Sustainability and the Office of Agriculture. DCNR works in support of thriving communities; a clean and healthy environment to foster environmental stewardship; ensuring food security; supporting a green economy, and strengthening communities by providing regional parks and infrastructure; protecting the region's water, air, land and natural habitats; enhancing agriculture and recreation; and reducing flooding.



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