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i <br /> • A <br /> Auquat 3, 1988 n. 1 <br /> AGS .lob NO. 38012-I v. <br /> P agg 2 rl 4 <br /> Aper ated percussion sampler fitted with a. clean brass slaeve into the ` <br /> sail . The sl.eevg was removed from the sampler arta sGaIdd with {{ <br /> aluminum foil, plastic caps, and airtight: t6pe. The s3anr9le s wed8 <br /> then labeled and' immediately pladed in i.c*d'.st*7eago for tta�l.Z'port ,to <br /> the analytical laboratory for tGotS:ng. ChAin Of CUatorly Record8 -Were <br /> i.r�itiatedt by the field aienlogist a.rid a006Maat�is tii0 K-=P 10E! to the <br /> laboratory. Copies of these records arab included vith thiel repor': . a <br /> Each s9quence of three samples -D-E-r, etc-) way <br /> composited by the analytical laboratory .i.r►tO cri-O t6gPIG. in this <br /> manner', one componite sample for approximately aviary 50 cubic-I yams_ , <br /> of stockpiled soil was analyzed. <br /> Samples were analyzed for total patr6laum hydkocarbons in accordance <br /> �. with Environmental Protection Agency ;EPA) t4ethmd.9015 and the � <br /> volatile organic'. constituents blon2dno► 0thYIkv0nZ4%r,0, tolatGA0, =4 <br /> total xylene isomers in accordancO with ZPA'Method 8020 by HAZCAT <br /> Analytical Laboratory in San Carlos, California. This laboratory is <br /> certified by they State of Cal,i.fol*nia to p*rfom these analyses. <br /> copies of the laboratory analysim reports are attached. - <br /> Results of chemical analyses indic&ta that `�1]1'&COC&-ZbOn corsti,tsents <br /> in the soil arra below laboratory limits of -detection: Applied <br /> Geosystems recommi ands. leaving the Vail at its 15reneht location for <br /> possible future use by North Cal Coisst7ruuction. Pleaaa do not <br /> hesitate to call if you have any questions .regardtir%g the information <br /> presented in this letter_ <br /> Applied COOSystesna <br /> Barry 1. MaMi6 <br /> Project rlaolcqiat <br /> CC: Tim Ross, LYNOCAL Corporation <br /> .Ice Comstock, UNOCAL Corporation a <br /> Robert Noyes, North Cal constructions i <br /> Attachments: Plata P-i - Svil, Stocidpfle ;SampIe T.tsCatciiu <br /> Table 1 -- Results df CbQMical mclyses Of Coil <br /> Samples •from the;Spoil stockpile <br /> Table a - Results of Chemical Analytes of 5cil frOm <br /> the Aorated Spoil stockpile <br /> Chain of Custody Records <br /> Laborat.or•; Analysis Reports <br />