Thurston County commission reviews geologic-hazards code update, debates 400-foot permit trigger

Mar 6, 2026

At a March 4 Planning Commission meeting, staff presented a draft update to the geologically hazardous areas chapter of the Critical Areas Ordinance, citing new DNR landslide mapping and a range of geotechnical report requirements; commissioners debated lowering a 400-foot permit trigger to 200 feet and heard public calls for clearer materials and more review time.

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Blair, a county staff member, presented a draft overhaul of Thurston County’s geologically hazardous areas chapter during the Planning Commission’s March 4 meeting, laying out a plan to centralize designations and standards, tie triggers to public mapping and clarify levels of geotechnical investigation.

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