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San Joaquin County Environmental Health Department <br />Site Mitigation Program <br />30 June 2021 <br />Page 3 <br />organic compounds (VOCs) using United States Environmental Protection Agency (USEPA) <br />Method TO -15; <br />The temporary soil vapor probes will be destroyed within 4 weeks of installation. The probes will <br />be destroyed by gently pulling out the Teflon° tubing, then tamping down the hydrated <br />bentonite to ensure closure of the small diameter (1/4 -inch) opening. <br />Reporting <br />Haley & Aldrich will prepare a report documenting the completed soil and soil vapor sampling activities <br />and summarizing the analytical results. A copy of this report will be submitted to SJCEHD to comply with <br />their permitting requirements. <br />Schedule <br />Haley & Aldrich anticipates completing this work as soon as SJCDEH approves this Work Plan and issues <br />the permit. Haley & Aldrich will contact SJDEH to schedule an inspection upon issuance of the permit. <br />If you have any questions, please feel free to call Mr. Adam Piestrzeniewicz at (714) 371-1805. <br />Sincerely yours, <br />HALEY & ALDRICH, INC. <br />Adam Piestrzeniewicz, P.G. <br />Assistant Project Manager <br />Attachments: <br />Figure 1— Site Plan <br />/Jaso/nGr'ant, P.E. <br />Senior Project Manager <br />Integral Communities I Tracy Hills; Attn: J. Garner <br />Lennar Homes of California, Inc.; Attn: K. Stough <br />\\haleyaldrich.com\share\wnc_common\131960_lntegral_Corral Hollow Rd_Tracy\KT Parcel Grading\Soil Vapor Work Plan\2021- <br />0630_HAI_Lennar_Hillview_Tracy_SV_Work Plan-F.docx <br />No. C 64624 <br />EV 6 30 23 <br />r� CNH. <br />'%DRICH <br />