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s <br /> T & T Trucking page 2 <br /> 11396 Hwy 99 Frontage N, Lodi <br /> _. A summary included`in-th-e reportJndicated-that_the-vertical-invest i gat ion_of,1PH <br /> as gasoline and MtBE-has not-been-completed-in the source-area_and,__ <br /> recommended additional CPT work. <br /> Recommendations also included conducting a soil vapor extraction (SVE) test for <br /> interim remedial action evaluation. The number of SVE wells installed for <br /> feasibility testing must be limited. Remediation of the deeper saturated zone <br /> may require additional methods such as air sparging. <br /> EHD concurs with this approach but recommends that a monitoring well with a <br /> short-screened interval be placed at each zone where CPT-1 data has indicated <br /> petroleum was detected before the additional CPT work be enacted: Each <br /> separate permeable zone should have it's own separate monitoring well and <br /> should be sampled quarterly. If consistent sampling data indicates that ' <br /> significant petroleum contamination is present, EHD will approve the deeper CPT <br /> investigation. <br /> EHD thanks you for your cooperation and your willingness to continue this _ <br /> investigation. Do not hesitate to contact Mr: Infurna if you have any questions-or <br /> wish to discuss the site. You may call Mr. Infurna at (209) 468-3454 or email him <br /> at minfuma(a-),sicehd.com. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> PIAA <br /> �2 <br /> Michael J. Infurna Jr., Sen or REHS Marga t Lagorio, HS <br /> LOP 1 Site Mitigation Unit IV Supervisor <br /> MI/ C <br /> c: CVRWQCB -J.L. Barton, Sacramento. <br /> c: SWRCB-CUF — Mark Owens, Sacramento. <br /> c: Brown & Caldwell - Tina Bauer.2701 Prospect Park Dr., Rancho Cordova. ti <br /> i <br /> i° <br />