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4 <br /> +a�iA E I <br /> 1535 East Pescadero Avenue <br /> �� Tracy, California 95304 <br /> 00 January 10, 2024 <br /> Page 2 <br /> o TPH-g, TPH-d, TPH-o using US EPA Testing Method 8015B .............................................7 samples <br /> • VOCs using US EPA Testing Method 8260B.................................................................7 samples <br /> • Backfill borings per permit conditions. <br /> • Prepare a final technical report detailing methods and results of the investigation, including tables, figures, and <br /> appendices. Analytical results generated during the investigation will be compared to revision 2 of the July 2019 <br /> environmental screening levels (ESLs) issued by the San Francisco Bay Regional Water Quality Control Board <br /> (SFBRWQCB) for commercial properties. <br /> Schedule: <br /> AEI will schedule the drilling upon receipt of the drilling permit from the San Joaquin Department of Environmental <br /> Health. AEI anticipates completing the drilling activities the week of January 2911 provided a permit is obtained. If you <br /> have any questions or comments, please do not hesitate to contact the undersigned. <br /> Sincerely, <br /> W'-' �Z-- <br /> Jeremy Smith <br /> Senior Project Manager <br /> AEI Consultants <br /> 2500 Camino Diablo <br /> Walnut Creek, California 94597 <br /> Email: jasmith@aeiconsultants.com <br /> Phone: 925.746.6000 <br /> Enclosed: Figure 1 - Site Map <br />