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Kenmore accepts WDFW riparian guidance; staff will bring draft critical‑areas code updates before December deadline
Summary
Kenmore — City staff and consultants presented draft updates July 28 to the city’s critical‑areas ordinance to implement Washington Department of Fish and Wildlife (WDFW) riparian management guidance and to adopt Riparian Management Zones (RMZs) as a formal protection category.
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Kenmore — City staff and consultants presented draft updates July 28 to Kenmore’s critical‑areas ordinance that respond to Washington Department of Fish and Wildlife (WDFW) guidance on riparian management. Staff said the changes are required as part of the city’s periodic comprehensive‑plan update and must be adopted before the state deadline.
What the changes do: Consultants from Osborne Consulting explained the proposal would reframe stream “buffers” into WDFW‑style Riparian Management Zones (RMZs) that are independent of stream type and are delineated using the outer edge of surface water, active floodplain or channel migration zone and extend to the farthest of: (a) site potential tree height, (b) extent of native riparian vegetation, or (c) a pollution‑removal distance (100 feet minimum). RMZs would become a category of Fish and Wildlife Habitat Conservation Area under the critical‑areas ordinance.
Why it matters: WDFW’s 2020 Riparian Management Recommendations are treated as best available science for jurisdictions updating critical‑areas protections. The change would shift how buffers are measured and how protections are applied, and it would fold riparian wetlands into the RMZ framework. Consultants recommended a streamlined permitting path for riparian restoration/enhancement projects to incentivize ecological improvements.
Process and deadlines: The proposed amendments are limited in scope to the WDFW comments and not intended to be a comprehensive rewrite of the critical‑areas ordinance. Staff plans to present tracked code changes to council on Sept. 15, hold a public hearing in October and seek ordinance adoption before the Department of Commerce filing deadline later in the year. Consultant Terrell Osborne and senior biologist Diana Halliday said the revised definitions and new RMZ delineation method will require cross‑checks with other code chapters, including shoreline and public‑works standards.
Council comment: Council members asked whether any proposed language would weaken existing protections; staff and consultants said the proposed changes implement WDFW’s recommended methodology and would not reduce protection levels compared with current code. The council did not adopt ordinance changes on July 28; staff will return with a draft.

