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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 /> X111 Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8632/950907-K1 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9509502 -01 Reported Sep 19, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Beryllium Cadmium Chromium Nickel Total Recoverable <br /> Petroleum Hydrocarb <br /> QC Batch# ME091595601OMDA ME091595601OMDA ME091595601OMDA ME0915956010MDA OP0915955520EXA <br /> Analy Method EPA6010 EPA6010 EPA 6010 EPA 6010 SM 5520 BF-MOD <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 SPE <br /> Analyst S O'Donnell S O Donnell S O'Donnell S O Donnell C Garde <br /> MS/MSD # 950928201 950928201 950928201 954928201 BLK091595 <br /> Sample Conc ND NO NO ND ND <br /> Prepared Date 9/15/95 9/15/95 9/15/95 9/15/95 9/15/95 <br /> Analyzed Date- 9/15/95 9/15/95 9/15/95 9/15/95 9/15/95 <br /> Instrument I D # MTJA2 MTJA2 MTJA2 MTJA2 Manual <br /> Conc Spiked 1 0 mg/L 10 mg/L 10 mg/L 1 0 mg/L 10 mg/L <br /> Result 10 095 095 094 73 <br /> MS % Recovery 100 95 95 94 73 <br /> Dup Result 10 095 095 094 76 <br /> MSD % Recov 100 95 95 94 76 <br /> RPD 00 00 00 00 40 <br /> RPD Limit 0-30 0.30 0-30 0-30 0-50 <br /> LCS # BLK091595 BLK091595 BLK091596 BLK091595 - <br /> Prepared Date 9/15/95 9/15/95 9/15/95 9/15/95 - <br /> Analyzed Date 9/15/95 9/15/95 9/15/95 9/15/95 - <br /> Instrument I D # MTJA2 MTJA2 MTJA2 MTJA2 - <br /> Conc Spiked 10 mg/L 10 mg/L 10 mg/L 1 0 mg/L - <br /> LCS Result 11 10 10 10 <br /> LCS % Recov 110 100 100 100 - <br /> MS/MSD <br /> LCS 75-125 75-125 75-125 75-125 70-110 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> .rgcgly <br /> A ALYTICAL 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 H <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> enner <br /> Project Manager "*MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9509502 BLA <1 i <br />