New 2025 Seal Cove Geologic Study Shows Landslide will Continue; Supervisor Mueller Explains County to Explore Remediation Costs but a Stormwater Assessment District May be Necessary

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VIDEO. From the Seal Cove Community Meeting hosted by San Mateo County on Wednesday, February 18th, 2026 at 6:00pm, hosted at SMC Supervisor Ray Mueller’s Office at the Oceano Mall in Princeton Harbor.

San Mateo County Planning and Building’s Seal Cove Critical Geotechnical Hazards Area webpage, including the Seal Cove 2025 Cotton and Shires Geologic Study.


Cotton and Shires Seal Cove Geotechnical Hazard Zones 12/2025

Seal Cove Geotechnical Hazard Zones, circa 1980, also from Cotton and Shires.


More on the Moss Beach Seal Cove Landslide Emergency on Coastside Buzz


San Mateo County Board of Supervisors (BoS) Agendas

The Supervisors meet on the 2nd and 4th Tuesdays of the month at 9:00am, as a hybrid meeting.

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