Stormwater Management Action Planning (2022)

Rain Garden in Perrinville Creek Watershed

Project Description:

The goal of this project is to meet the 2019‐2024 NPDES Municipal Stormwater Permit requirements for the receiving water conditions assessment (S5.C.1.d.i) and prioritization, (S5.C.1.d.ii) per the new stormwater planning section of the updated permit. Compliance with these permit sections requires completion of phased steps as prescribed in the permit documents.

The effort includes a combination of data analysis, forecasting, and public input to develop a prioritization method and process to determine which local receiving waters will receive the most benefit from implementation of stormwater facility retrofits, tailored execution of surface water planning, as well as other land/development management actions.

Project Timeline:

The receiving waters conditions "assessment" is due to Ecology by March 31, 2022. The receiving waters "prioritization" is due to Ecology by June 30, 2022. The City must comply with these timelines in order to remain fully compliant with the NPDES permit. These permit documents will inform and direct the full update to the "Stormwater Comprehensive Plan", however this plan update is expected to have a longer timeline and will be a separate undertaking in 2022-2023.

Public Workshops:

Public Workshops were held on February 8th & 10th, 2022.  These workshops were led by Herrera Environmental Consultants and City staff.  A recording of the Feb. 8th workshop has been posted online.

Public Workshop (Feb 8th):

Edmonds Receiving Water Prioritization Workshop 1 (Video)

Project Documents:

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Project Manager:

Pat Johnson
Stormwater Engineering Technician
[email protected]
(425) 771-0220, x1322

Si tiene problemas para comprender el inglés, puede pedir, sin costo, servicios de ayuda lingüística, para la información de este proyecto, poniéndose en contacto con Pat Johnson a [email protected] o llamando al (425)771-0220, x1322.

If you have difficulty understanding English, you may, free of charge, request language assistance services for this project information by emailing  [email protected] or calling at (425) 771-0220, x1322.