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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Iftet Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> V Blaine Tech Services, Inc Client Prolect I D Chevron 9-8632/960207-Z4' Y v r L <br /> ,985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> ',Attention Jim Keller Work Order# 9602583 -01 Reported Feb 27, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Beryllium Cadmium Chromium Nickel Total Recoverable <br /> Petroleum Hydrocarb <br /> OC Batch# ME0212966W10MDB ME0212966010MDB ME021296601OMDB ME021296601OMDB OP0212965520EXB <br /> Analy. Method EPA 6010 EPA 6010 EPA 6010 EPA 6010 SM 5520 BF-MOD <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 SPE <br /> Analyst C Medefesser C Medefesser C Medefesser C Medefesser C Garde <br /> MS/MSD #. 960255802 960255802 960255802 960255802 BLK021296 <br /> Sample Conc N D N D N D N D N D <br /> Prepared Date 2/12/96 2/12/96 2/12/96 2/12/96 2/12/96 <br /> Analyzed Date 2/13/96 2/13/96 2/13/96 2/13/96 2/14/96 <br /> Instrument I D # MTJA2 MTJA2 MTJA2 MTJA2 Manual <br /> Conc Spiked 10 mg/L 10 mg/L 1 0 mg/L 1 0 mg/L 10 mg/L <br /> Result 11 11 10 11 71 <br /> • MS % Recovery 110 110 10o 110 71 <br /> Dup Result 11 11 10 10 73 <br /> MSD %Recov 110 110 100 100 73 <br /> RPD. 00 00 00 95 28 <br /> RPD Limit. 0-30 0-30 0-30 0-30 0-50 <br /> t 4 v } n <br /> LCS # BLK021296 BLK021296 BLK021296 BLK021296 - <br /> Prepared Date: 2/12/96 2/12/96 2/12/96 2/12/96 - <br /> Analyzed Date: 2/13/96 2/13/96 2/13/96 2/13/96 - <br /> Instrument I D #: MTJA2 MTJA2 MTJA2 MTJA2 - <br /> Conc Spiked: 1 0 mg/L 1 0 mg/L 1 0 mg/L 1 0 mg/L - <br /> LCS Result: 1 1 1 1 10 10 - <br /> LCS % Recov : 110 110 100 100 - <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 /> SE IA ICAL 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 fail within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> 9 <br /> roject Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9602583 BLA <1> <br />