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,i I � i .i !i i ME•TAtI1C RfpIACEIErT Site AsaesaMnt #eeulta 420 MEET KETTLOMW LAItE,LODI, CA. Aegis Project no. 89.013 Page I ', �s.0 IIQTlt4D��i IdN i E Aegis Environmental Consultants (Aegis) io hereby submitting the results of a pre--tank replacement site assessment conducted at the shell retail service station located at 420 W. kettliment Lane, Lodi, ' San Joaquin county, CA. The San Joaquin County assessor's parcel f number for the site is 062-02-02' (figure 1) . The purfose of the site assessment wrs to assess subsurface conditions priorlIto a planned tank closure/replacement at the proposed location of 'I�new underground storage tanks and the existing tank basin. Briefly the scope of Aegis' services included the following: 1) Drilling and sampling five soil borings at ,the existing underground storage basin and associated plumbing system at the locations identified in figure 2, 'iaccording t the methods outlined in Appendix A. 2) Drilling and sampling eight soil borings at the proposed underground tank location, at the locations shown in figure - 2, according to the methods described ,in Appendix A. 3) Drilling and sampling two soil borings at the western fuel �.� island, at the locations identified iri` figure 2, according to the methods outlined in Appendix A.I w 4) Recovering soil samples from each of the soil borings at five foot vertical spacings. j S) bogging each of the soil samples in accordance with the Unified Soil Classification System. 6) Screening each of the recovered samplea forjthe presence of petroleum hydrocarbons with a photoiortiization detector (PID) , according to the methods described in Appendix A. 7 ) submitting a total of ®levan soil samp lea to a state certified laboratory to be analyzed for petiroleum hydrocarbons, according to the methods', outlined in Appendix A. i 8) Submittingselected soil nam les from the proposed now P P, P n tank i location to a soils engineering for a qualitative assessment of slope stability at the proposed tank locution. 9) Preparing this report and presenting the re�'ults of Aegis' site assessment, with conclusions and recommendations for mitigation during the planned tankllclo#iure/replacement.