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.-"►�' 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364 9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (9Z5)988-9600 FAX(9Z5)988 9673 <br /> III 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)921-0100 <br /> Analytical <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792 1865 FAX(707)792-0342 <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-8264/ 980810-T1 <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order # 9808910-01 Reported Aug 31, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Beryllium Cadmium Chromium Nickel <br /> QC Batch# ME081798601OMDA ME081798601OMDA ME081798601OMDA ME081798601OMDA <br /> Analy Method EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 <br /> Analyst C Caoile C Caoile C Caoiie C Caoile <br /> MS/MSD# 9808910-01 9808910-01 9808910-01 9808910-01 <br /> Sample Conic N D N D 0 011 N D <br /> Prepared Date 8/17/98 8/17/98 8/17/98 8/17/98 <br /> Analyzed Date 8/17/98 8/17/98 8/17/98 8/17/98 <br /> Instrument I D # MTJA5 MTJA5 MTJA5 MTJA5 <br /> Conc Spiked 1 0 mg/L 1 0 mg/L 1 0 mg/L 1 0 mg/L <br /> Result 11 11 10 10 <br /> MS % Recovery 110 110 99 100 <br /> Dup Result 11 11 10 10 <br /> MSD % Recov 110 110 99 100 <br /> RPD 00 00 00 00 <br /> RPD Limit 0-20 0-20 0-20 0-20 <br /> LCS # LCS081798 LCS081798 LCS081798 LCS081798 <br /> Prepared Date 8/17/98 8/17/98 8/17/98 8/17/98 <br /> Analyzed Date 8/17/98 8/17/98 8/17/98 8/17/98 <br /> Instrument I.D # MTJA5 MTJA5 MTJA5 MTJA5 <br /> Conic Spiked 1 0 mg/L 10 m0/L 1 0 mg/L 1 0 mg/L <br /> LCS Result 11 11 10 10 <br /> LCS % Recov 110 110 100 100 <br /> 80-120 80-120 80-120 80-120 <br /> LCS 80-120 80-120 80-120 80-120 <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 /> ISVCtManager <br /> YTICAL preparation,and analytical methods employed for the samples The matrix spike ss 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 /> Interference the LCS recovery is to be used to validate the batch <br /> **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference 9808910 SLA <6� <br /> I _ <br />