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' WORK PLAN <br /> SOIL AND GROUNDWA FER INVES FIGATION <br />' CANEPA'S CAR WASH <br /> 6230 PACIFIC AVENUE <br /> STOCKTON, CALIFORNIA <br />' PREPARED BY <br /> CONDOR EARTH TECHNOLOGIES, INC <br />' lanuar'% 21, 1998 <br />' I INTRODUCTION <br /> This is a work plan for a soil and groundwater investigation at Carlepa's Car Wash located at 6230 <br /> Pacific Avenue, StOLkton California (Figure I Appendix A) The wort, plan was prepared by Condor <br />' Earth I ecllnologles, Inc (Condor) at the request of Mr Remo Canepa in accordance with a directive <br /> from Mr Ronald Rowe of the San Joaquin County Public Health Ser\ices/Environmental Health <br /> Division (PIIS/EHD) The directive letter requested by Mr Rowe �Nas prepared by Condor and dated <br /> January 19 1998 The .\ork is being conducted to meet the provisions of the California Underground <br />' Storage Tank Clean-up Fund (UST-CF) for pre-approval of corrective action cost for the installation of <br /> an niterim soil \apor extraction system proposed for this site. <br />' The purpose of the work is to further imestigate the literal and %ertical extent of gasoline contamination <br /> in site Soil and to imestmate the Vertical component of gasoline contamination in site giound«ater In <br /> addition the �%ork N\rll be used to properl\ characterize the site liNdro��cology and to gather detailed <br /> lithologrc information at the site The \tiork %ill consist of the installation and sampling of t\No soil <br /> bonngs using continuous sampling technology and Simulprobe discrete simultaneous soil and <br /> graund\Nater sampling technology All x\ork conducted b,, Condor \\ill be performed snider the <br /> super i,,ion of a California Stats. Registered Geologist This %%ork plan includes a description of the <br /> Iproposed fickh\ork and laborator\ analyses <br /> 2 SITE BACKGROUND <br /> Canepa'~ Car N''ash consists of an automated car %%asluno facility a fuel station and a c01INC11 epee ~tore <br /> (Figure 2 Appendix A) The car v ash and fuel station have been in operation for approximately 20 <br /> 3 ear,, <br /> In the Spring of 1993 three underground fuel tanks fuel lines and dispLivers NNere removed and replaced <br /> with a doubled walled s-vstem The tanks consisted of t«o 12 000-gallon gasoline tanks and one 5 000- <br /> I lion diesel tank Vl'hen the tanks were removed it \gas discovered that the, fuel liner had leaked and <br />' mat the tanks hal been overfilled Approxillately 000 cubic \ards of Soil \\ere remoted from the fuel <br /> tank excavation area <br /> Beginning in March 1993, one soil boring and a network of nine soil vapor extraction (SVC) wells were <br />' drilled and installed in the area of the fuel dispenser islands l3et.vicen September 1993 and March, <br /> 1994 ei(—,ht monitoring wells (MW-1 tlirou��h MW-R) were installed In March 1994 a coil vapor <br /> extraction system was installed and operated In the Fall of 1996 it was deternimr-d that the SVF s}stern <br /> was lrladequate and turned off A detailed Site l h,,Iory 1s Inc,ludEA in Appendix B <br /> 3 FI ELI) AND ANALYTICAL METHODS <br /> 1hi` ,ect;on includes a description of the propotied Sites prL.paratic,n dlillin- 1 rocedL11',Z `Gill `,lnlpl111g <br /> Simulprobe, soil and groundwatersampling and laboratory anaksis <br /> �� CONDOR <br />