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Sample No. Suspect Asbestos Material Asbestos Content Percent by Weight 0503.22 Debris-Friable-Gray Track 01-Pit 2 2% Amosite 10% Chrysotile 12% Crocidolite 0503.23 Debris-Friable-Gray Track 01-Pit 3 2% Amosite 8% Chrysotile 5% Crocidolite 0503.24 Debris-Friable-Gray Track 01-Pit 3 2% Amosite 8% Chrysotile 6% Crocidolite 0503.25 Cementitious Debris-Non-Friable-White Track 01-Pit 3 15% Chrysotile 12% Crocidolite CONCLUSIONS Asbestos is present in the materials evaluated. The majority of the materials were determined to be non-friable. Friable materials tested and found to be asbestos include cloth material and the debris found in Pits two and three. Note, the associated crushed debris of samples collected and identified as non-friable asbestos-containing should be considered friable. RECOMMENDATIONS Implement an abatement plan to address to asbestos materials identified in this report in accordance with the Waste Discharge/Spill Response Notice to Abate, dated March 17, 2022, issued by San Joaquin County Environmental Health Department. Generally, Hire a California Registered Asbestos Abatement Contractor to cleanup asbestos containing materials, segregate (friable/non friable) and dispose of under manifest. Employ a California Certified Asbestos Consultant to perform perimeter air monitoring during the cleanup activities and visual inspections upon the completion of work. Specifically, Location 1 — Northeast Track (north to south) — SEI reference Track 2. This area contains asbestos debris on the surface to be cleaned up. Given the limitations outlined in this report, SEI recommends the removal of all visible surface asbestos debris. Location 2 — West Track (east to west) — SEI reference Track 1. This area contains asbestos debris on and sub surface. SEI recommends the removal of all visible surface asbestos debris and developing a plan to mitigate the migration of sub surface asbestos. Asbestos Report 1217 Stoakes Ave. Stockton, CA 95215 I 07.22asb pg. 7