10/7/26 Beach and Creek Updates Posted on October 7, 2026October 7, 2026 San Mateo County Beach and Creek Postings for October 7, 2026, based off samples collected October 5, 2026 BEACH (PACIFIC-SIDE) POSTINGS: Linda Mar #5 (Linda Mar Blvd.) Gazos Creek Beach (Surf @ Access Pt.) CREEK POSTINGS: San Vicente Creek (at Fitzgerald) Pilarcitos Creek (at Venice-South) Gazos Creek BEACH (BAYSIDE) POSTINGS: Erckenbrack Park Marlin Park