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� <br /> ETS ENVIRONMENTAL PROJECT 301 <br /> PAGE 2' <br /> ' <br /> � ^ <br /> 2. 0 PURPOSE <br />' <br /> The purpose of this site assessment is to outline the <br /> work unducted during the last phase of the ongoing � <br /> »� <br /> investigation to determine the presence or ibsence of � <br /> hydrocarbon constituent contamination on the site. Two areas <br /> of conbern were: i > the soils around the dispensing islands <br /> and, 2> the soils in the vicinity of the diesel product line <br /> that Kid failed. ' <br />| U i <br /> U In addition to completing the investigation in the above � <br /> — <br /> mentioned areas, a single soil boring was drilled at a 30 <br /> degree; angle under the 350 gallon waste oil tank. This was <br />. 0 done to determine the suitability of closing the tank in � <br /> m� place. <br /> / <br /> U ^ <br /> k 3. 0 SCOPE OF WORK <br /> The following scope of work was conducted to address the � <br /> areas of concern mentioned in Section 2. 0. <br /> � <br /> � <br /> 1, Drill, soil sample and log two soil borings (No. 8 . <br />! U ` and 9) to a depth of approximately in the i <br /> locations indicated on Figure <br /> !2, Send soil samples to an approved -analytical � <br /> A | <br /> !&� laboratory for analysis of the following ; benzene, / <br /> toluene, xylene, EDB, EDC and total purgeable ' <br />� <br /> hydrocarbons (gasoline or diesel). <br /> l ' <br /> &~ <br /> 34 Drill, soil sample and log a single. soi l bori"ng to a <br /> vertical depth of approximately 12 feet at the <br /> | location indicated on Figure 1 (No. 10) ' The boring <br /> � . <br /> �= was drilled at a 30 degree angle to sample soil <br /> directly beneath the waste oil tank as indicated on | <br /> Figure 2. <br /> i <br /> 4. Send the waste oi I tank soi l sample to an approved <br /> laboratory for analysis of the following ; benzene, ! <br /> � toluene, xylene, EDB, EDC, and total purgeable | <br /> &� hydrocarbons and oil and grease'' <br /> A / <br />! k~ Soil samples were collected at f'ive feet intervals in | <br /> � <br /> borings 8 and 9 and sent for laboratory analysis. All ' <br /> boringsj were backfilled with a neat cement/5% bentonite <br /> h mixture to grade under the supervision of a San Joaquin Local. � <br /> — Health, District inspector. � <br /> � Borings were drilled using a hollowstem auger and / <br /> sample? were collected in a split spoon sampler. Chain of ! <br /> custody procedures were followed for all samples. | <br /> L <br /> U ' <br />^ - - <br />