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7 <br /> k.§ <br /> RiIR II <br /> f <br /> ETa ENVIRONMENTAL <br /> 1.0 INTRODUCTION <br /> Thi: preliminary site assessment has beer, prepared by <br /> ETS Environmental for his-. Jerry hjc,orr? of #joc,re petroier_srn. <br /> This work was c_,r-rd.scted as a preliminary irrvestigati�n f.rr <br /> the detection of hydrocarbon constituents in ttis+ Subsurface <br /> prier to site I-enc-vation and/or a full scale site <br /> 1 nvest i g at i on. <br /> The site is located at 1.359 Yoseriite Ave. in Manteca, <br /> California (Firqures 1-1, 1--E). Current activities, at the <br /> site include automotive fuel dispensing and automotive <br /> repairs. Two pump islands are located near the urrdergro,_trrd <br /> storage tanks. <br /> M 1. 1 PURPOSE <br /> The ourposra of this preliminary site assessment is to <br /> review the phase- of work cornpletred thus far to determine the <br /> v presence or absence of hydrocarbon contamination at the site. <br /> Samples of bath soil and groundwater wel-e collected to make <br /> this determi'rration. This assessment includes a section of <br /> recommendations for further field investigation. <br /> 1. 2 SCOPE OF WORK <br /> The following scope of work was completed dii ing the <br /> preliminary investigation. <br /> - i. Drill, soil sample, tend log three soil borings to <br /> gr—rdwater and one to terr feet angled below a waste oil <br /> tcsrrk at the locations indicated on Figur^e 1-2. Sail <br /> - samples were tested for hydrocarbon constiturrnts using <br /> EPA method 4240 "Fuel Fingerprint" and TEL. <br /> 2. Continue one boring jppro>(irnately lr3 tc, 15 fee <br /> t below <br /> groundwater, as encountered, and eornplets tFre [�c,r ing as a <br /> well. MWI--1 wa.S installed to a total depth of 8 feet <br /> with 2---inch flush threaded PVC casing. R groundwater <br /> sample was collected and tested using EPA method 524. E <br /> "Fuel Fingerprint„ <br /> 3. Prepare a report surnn3arizirrg findings, conclusions -Ind <br /> recommendations for Further acl:ic.r, if -r-recess-Ary. <br /> f <br />