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Ms . Laurie Cotulla <br /> June 1 , 1987 <br /> Page 3 <br /> will be measured with the PID. The PID measure- <br /> ments in conjunction with field observations will <br /> be used to select samples for laboratory :analysis . <br /> The results of these analyses will provide informa- <br /> tion on the vertical and horizontal extent of <br /> contamination in the sediments . One sample from <br /> each well will be analyzed. <br /> Soil samples analyses for total hydrocarbons, benzene, <br /> toluene and xylenes will be conducted using EPA <br /> Method 5030/8020/8015 . Lead analysis will be conducted <br /> using EPA Method 3050/7420. <br /> " Subsequent to well installation, monitoring will be <br /> conducted to record t e depth to -water- and presence <br /> of free floating prod ct , . if any. Thegroundwatex. <br /> gradient wiwl�l be de ermined from water Yeve-1 ss <br /> within�the]Imonitoringj�wells an� surveyed well head <br /> elevations. <br /> SII <br /> One water sample will be obtained from each well and <br /> analyzed for total hydrocarbons , benzene , toluene and <br /> xylenes using a modified EPA Method 602 . Lead analysis <br /> will also be conducted usi 9 EPA Method 3020/7421 . <br /> 'A*dissolvedIBhydrocarb riV-plume Iii a-p�wiilklGbe�prepared 1 <br /> from"wtheolaborator.yAa aly,ticaligresults-:-v <br /> 0A free pry"`oduct plum i Cmap . w!till 0be preparedfroMm <br /> moriitoring results i'f free product-gis-tpresent` <br /> As required , an application permit and filing fee for the <br /> borings and installation. of the monitoring wells are attached . <br /> GTI intends to begin the drilling the week .of June 8 , 1987. <br />