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O.E.S. Mataga Olds/Buick <br /> r July 17, 1992 <br /> F page _3_ <br /> lip <br /> 3.0 'PROPOSED METHODOLOGY - <br /> 3.1 Over-Excavation <br /> I :F <br /> 1 r <br /> Condor proposes that an,�additaona3-3Ato--51feet of soil be " <br /> \excavated from.-the-north, east; "and- west ends of the initial tink <br /> �excavatin`,. Prior_ to field activities, Condor .will notify the <br /> r San Joaquin' County Environmental Health Division at least 48 <br /> hours in advance. FApproximately. 15 ..cubic _yards, -of soil are: <br /> expected to be removed during the over-excavation: Visual <br /> - A <br /> inspection (evidence of soil staining) and field detection <br /> equipment -- (Organic Vapor Analyzer - FID) will b`e -used to screen <br /> the soils during excavation to assist in evaluating the limits of <br /> contamination. �x - <br /> 3.2 Soil Samples T4 it <br /> A _minimum of five �(5) soi lsaritples will ber collected- for <br /> 1�37hemica.l..,analyses fro- the bottom_ __ _,.four,,:wails oAl <br /> f the enlarged <br /> excavation', All s les will be collected <br /> in brass tubes, r <br /> capped, wrapped wi h duct tape, labeled and immediately placed in <br /> a cooler chilled it <br /> Blue Ice for delivery under chain-of <br /> ;I 7 <br /> custody procedures to GeoAnalytical Laboratories 1(� Modesto, <br /> California. <br /> cej <br /> di j <br /> "CO DOR <br /> i <br />