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I <br /> Mr.Michael J.Infarna,Jr.,R.E.H.S. Page 2 <br /> April 4, 1996 <br /> Scope of Work <br /> I <br /> The intended Scope of Work is outlined below: <br /> Task I ' <br /> Prepare a site specific Health and Safety Plan. As part of this task, PEM will also <br /> notify underground utility locating services, contract with a licensed driller, and <br /> schedule field activities. <br /> Task 11 <br /> Two soil borings will be drilled on the assumed down gradient(northeast) side of the <br /> existing building(Figure 2). Borings will be advanced by hand auger methods under <br /> the supervision of a licensed driller. Available information indicates ground water <br /> is present at a depth of 8 to 10 feet below ground surface. Soil samples collected as <br /> the borings are advanced from 3, 6, and 9 feet below grade will be preserved for <br /> descriptive purposes and possible laboratory analysis. After ground water is <br /> encountered, a dedicated bailer will be used to collect a ground water sample from <br /> each un-cased soil boring (no well will be.constructed). After collection of ground <br /> water samples, each soil boring will be backfilled with a mixture of Portland cement. <br /> and 5%bentonite (or similar)to prevent percolation of surface water. The collected <br /> ground water samples will be placed on ice and transported.to a California-certified <br /> laboratory under proper chain-of-custody procedures for analysis. Soil cuttings and' <br /> decontamination water will be stored on site in 55-gallon drums,properly labeled and <br /> sealed, pending receipt of analytical results and characterization for disposal. The <br /> backfilling process will be inspected by San Joaquin County Public Health Services <br /> (SJCPHS). <br /> I5 <br /> Task III <br /> Selected soil samples and ground water samples will be submitted for laboratory r <br /> analysis of total petroleum hydrocarbons as gasoline (TPHg), total petroleum <br /> hydrocarbons as diesel (TPHd), benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX), and selected pesticides (EPA methods 8015 modified, 602, and 8080, 1 <br /> respectively). } <br /> i <br /> Task IV ' <br /> After receipt of analytical results, PEM will compile and evaluate site data and <br /> prepare a letter report which will be submitted to SJCPHS for review. The report <br /> will contain the results of the field work, including a description of materials t <br /> encountered during soil boring, and an assessment of sampled soil and ground water <br /> quality. <br /> I <br /> L <br />