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Sequoia 619 Striker Avenue,Suite 8 <br /> 4- Sacramento,CA 85834 <br /> (916)921-9600 <br /> I <br /> Analytical <br /> FAX equo 9Z1-0100 <br /> 1-i <br /> I wwtiv.squoialabs.com <br /> Delta Environmental Consultants Project: ARCO 5469,Stockton, CA Sampled: 615/00 to 618100 <br /> 3164 Gold Camp Drive, Ste.200 Project Number: NIA Received: 619/00 <br /> Rancho Cordova CA 95670 Project Manager: Jay Johnson Reported: 6128/00 <br /> .- ..Sss.. �.,.,,.._.-'"�--•�.5-.n .,.�„.�a:.: n-,,-t..,.. ...�.,ti�. _.e_.�.-...«ia�t='~• �'•--•.rh.c...ice °,.4YL.sM `�,�.�t <br /> Date Spike Sample QC Reporting Limit Recay. RPD RPD <br /> Analyte Analyzed Level Re5Ult Result Units Recov,Limits % Lrmit % Notes* <br /> Batch: OF19041 Date Prepared: 6119100 Extraction Method: EPA 3810 Headspace <br /> Blank 0F19041-BLKI <br /> Methanol 6/19100 ND mg/kg 1.00 <br /> Surrogate.' 1 pentanol 5.DO 619 31-166 126 <br /> Surrogate: 1 pentanol(dbwax) 5.00 6.43 49-166 129 <br /> Stank OF19041-ELK2 <br /> Methanol 6/21/00 ND rnJkg 1.00 <br /> Surrogate: 1 pentanol11 5.00 705 31-Ib6 141 <br /> Surrogate: 1 pentanol(dbwax) " 5.00 7.22 49-166 141 <br /> LCS OF19041-13SI <br /> Methanol 6t20l00 8,00 9_l4 ^�flcg 70-130 114 <br /> Surrogate: 1 pentanol 5.00 4.-1 31-166 $5.0 _ ---� <br /> S*ate: 1 pentanol(dbwax) 5.00 4.41 49-166 88.2 <br /> i <br /> L.CS OFI9041-BS2 <br /> Methanol _ 6/21/00 8.00 7.23 Mg/kg 70-130 90.4 _ <br /> Surrogate: 1 pentanol 5.00 2.65 31-Ib6 53.0 <br /> Surrogate: I-pentanol(dbwax) 5.00 2.6.3 49-166 .53.6 <br /> Matrix Spike OF19041-MSI 5006136-01 <br /> Methanol 6/20/00 8.00 ND 7.95 mg/kg 50-150 90.5 <br /> Surrogate: I pentanol 5.00 4.81 31-166 96.2 _---�" <br /> Surrogate: 1 pentanol(dbwax) 5.00 4.35 49-166 87.0 <br /> Matrix Spike OF19041-MS2 5006136-18 <br /> Methanol 6/2I/00 8.00 ND 8.55 mg/kg 50-150 98.5 <br /> Surrogate: I pentanol S.00 3.913I-166 78.2 ----` <br /> Surrogate: 1 pentanol(dbwax) 5,00 3.58 " 49466 71.6 <br /> Matrix Spike Dun 0F19041-_MS DI 5006136-01 <br /> Methanol 6/20100 8.00 ND 8.72 mg/kg 50-150 100 50 9.2 <br /> Surrogate: 1 pentanol 4 <br /> S.DD 4.96 3I-166 99.2 ~4 <br /> Surrogate: /pentanol(dbwax) 5.00 4.95 49-166 99.0 <br /> Matrix Spike Du OFI9041-MSD2 5006136-I8 <br /> Methanol 6121/00 8,00 ND 9.22 mg/kg 50-150 107 SO 7.54 <br /> Surrogate: I-pentanol S.OD 3.82 3I-166 76.d <br /> Surrogate.' I-pentanol(dbwax) " 5.00 3.87 49-166 77.4 <br /> Sequoia Analytical- Sacramento *Refer to end of report for text of notes and deftnitions. <br /> Page 24 of 25 <br />