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Ld >' <br /> 26 August-1997. <br /> AGE Project No: 97-0360' <br /> Page 2 of 3 : <br /> SOIL SAMPLING . <br /> Following removal ofahe tank;'a backhoe was used to collect a soil samples from 10 feet below <br /> surface grade,,collected approximately one to�two-:feet below rthe lowest portion of the UST. Ocie 1 <br /> sample was collected from each end of the former UST excavation (Figure Site Plan). Also one I <br /> grab water sample was collected-using the bucket of the backhoe. <br /> i <br /> ' it stock' ale :Each soil sample was.collected with . <br /> cted'from the so <br /> Four sail sam les were cone P <br /> P , <br /> metric soil sampling rhammer,.loaded. with a pre-cleaned brass sleeve: The ends .of the brass <br /> i <br /> sleeve were sealed with Teflon plastic sheets' and end caps were tapped over the ends.'of.each <br /> Sample, sleeve: <br /> Sampling procedures were observed by a representative of the San Joaquin County Public'Health <br /> Services Environmental Health Division(PHS-EHD). <br /> The samples.were labeled and placed' in a!chilled container for subsequent transport to Alpha <br /> Arialytical. Laboratories lnc: (AAL) of Ukiah? California, a`state-certified'analytical laboratory.' <br /> 4 <br /> The. date .and time soil samples .were noted on the chain-of-custody .form included. with the, <br /> attached laboratory reportand'quality control data: . . <br /> _ . <br /> _ <br /> wereThe samAleassociated the .UST andthe stockpile sois samples an <br /> al <br /> ze <br /> d' for 'to <br /> tal <br /> petroleum' hydrocarbons quantified as diesel (TPH-d),-purgeable aromatics (benzene, toluene; <br /> I tertiar but '1 ether. MTB <br /> E in accorda <br /> nce <br />� Bc.X and meth ( ) <br /> eth}lbenzene:and total xylenes: BTE. , ) y Y . Y .. <br /> with EPA methods 8015-modified for gasoline and 8020 for':BTE&X and MTBE. <br /> RESULTS <br /> TPH-d was resent:in each of the soil samples analyzed at concentrations up to 6,200 milligrams <br /> P . <br /> per kilogram(parts per million: ppm). No,BTE&X compounds were detected in the soil samples.% . <br />' analyzed.'TPH-d and:BTE&X'were detected irr the grab'water sample,at c.onc6ntratioii of 3.1,000, <br /> 8; 12,'S3, and 68 inicrogran35 per liter (parts per billion::ppb), respectively: TPH-g,was note to" <br /> be in the samples, based bn a�Yerbal conversation:with AAL <br /> Advanced CeoEnvironmentat,Inc: <br /> t 4 ' <br />