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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033 /960619-T1 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 96061393-01 Reported Jul 1, 1996" <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Total Recoverable Diesel <br /> Petroleum Hydrocarb <br /> GC Batch#. OP0627VM20EXB GCO624960HBPEXZ <br /> Anally Method' SM 5520 BF-MOD EPA 8015M <br /> Prep. Method SPE EPA 3520 <br /> Analyst H O B Ali <br /> MS/MSD# BLK062796 960688905 <br /> Sample Conc N D 2000 <br /> Prepared Date 6/27/96 6/24/96 <br /> Analyzed Date 6/28/96 6/25/96 <br /> Instrument 1.1) # Manual GCHP4 <br /> Conc Spiked 10mg/L 1000ug/L <br /> Result 48 2900 <br />. MS%Recovery 48 90 <br /> Dup Result 85 2800 <br /> MSD % Recov 85 80 <br /> RPD 56 35 <br /> RPD Limit 0-30 0-50 <br /> LCS# BLK062796 BLK062496 <br /> Prepared Date 6/27/96 6/24/96 <br /> Analyzed Date 6/28/96 6/25/96 <br /> Instrument I D # Manual GCHP4 <br /> Conc Spiked 10 mg/L 1000ug/L <br /> LCS Result 96 850 <br /> LCS %Recov 96 85 <br /> 60-140 50-150 <br /> LCS 70-130 60-140 <br /> Control Limits <br /> Please Note <br />. The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br /> 1 N YTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> in erference,the LCS recovery is to be used to validate the batch <br /> Penner <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9606893 BLA <2> <br />