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<br />a ,soil samples previously llected' during the 4j !III ,
<br />, , E ' I ! I co, , led,
<br />January 10, 1992, with WCC) None of the"
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<br />June 1990 tank removal operations was analyzed (for' (WET' lead
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<br />The soil samples from the pipeline area could not be thesoil"
<br />oil"
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<br />collected., 'A summary o,I.. fx
<br />sampling activities is describedY below�� fI_i� i 'ft T I I r « Ar x... n 44x5i41l1l
<br />mill � 314. !l,
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<br />22 1 Tank Excavation " l
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<br />Soil samples were collected from four areas I excavation identified as A, B, C
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<br />,within ,1the ,
<br />and"D (Figure 3) beginning at a' depth near ithe, bottom of tliel onginal tank excavation in
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<br />native,'soil (approximately 14 feet):'Atl eaeh;'locationq;.,Isoil,„sah mples iwIe'..'collected ”,collected at
<br />a roxima 1
<br />pp toy two foot depth intervals. At sample (locations AI and B,11soi1 samples were)'(,
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<br />collected at two depth intervals At sample locations C and D;° Soil'sample§i:were, collected) ;
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<br />at four depth intervals Each soil sample was, collected from thelexcavatolr bucket A brass'
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<br />tube was driven into the excavated soil within the bucket at a location where :the soil was,
<br />relatively intact After the tube was driven lin',the soil the tube was removed and the tube
<br />was (prepared for shipment The tube ends we're covered with )aluminum, foil; then with ;
<br />plastic caps. The tube was labeled with the following information. sample identification,
<br />1
<br />date and time sampled. The tube was placed'rin a resealable plastic bag, then placed in an
<br />ice,chest with ice. ISelected soil samples were transported to Matrix under chain) of custody, I
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<br />'for total` lead and , WET lead analyses. ', Selected -Boil samples` ,;wereisUmi' ,' I
<br />b tted to WCC
<br />Geotechnical Laboratory for hydrometer anailysis `I,
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<br />Soil,,samples were collected from two areas (identified! as A and;'B) ,of the stockpile Four
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<br />soil"�,samples we're -)collected from each a d—'a4 The,samples,we e''collected at a depth of !
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<br />approximately 21 feet A shovel was used to 'rerriovelt the top, 2 feet, of stockpiled soil A ,
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<br />brass tube was driven into the underlying soil After the tube driven the soil I' '
<br />, was in the tube
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<br />was removed and the1ube was prepared for analytical analysis Thle,tube ends'were covered '
<br />was I 1 i I
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<br />with` aluminum '(foil," then with plastic ca " 'i ' t t e following
<br />p ps Thie tube,, was labeled ' wi h i` h
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<br />information sample identification, date , and , time !sampled I I The tube was placed in a
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<br />14 11 I I 1 , I' +1111 114 II fII 111'1111 14 11 i 11! 11'41( 111x11 I 1 , 'I
<br />resealable, plastic rbag, then placed ,in anulice ,ichest with,ice ' II!Selected 'Isoili samples were,
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