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Sequoia680 Chesapeake Drive Redwood City, CA 94063 (650) 364-9640 FAX(654)364 9233 - <br /> 404 N Wtget Lane Wainut 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 /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033 / 980209-A2 <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9802713 -01 Reported Mar 4, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Beryllium Cadmium Chromium Nickel <br /> QC Batch# ME0213986010MOA ME021398601OMDA ME0213986010MDA ME0213986010MDA <br /> Anally Method EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 <br /> Analyst S Le Barron S Le Barron S LeBarron S Le Barron <br /> MS/MSD# 98027401 98027401 98027401 98027401 <br /> Sample Cone N D N D N D N D <br /> Prepared Date 2/13/98 2/13/98 2/13/98 2/13/98 <br /> Analyzed Date 2/13/98 2/13/98 2/13/98 2/13/98 <br /> Instrument I D # MTJA5 MTJA5 MTJA5 MTJA5 <br /> Cone Spiked 1 0 mg/L- 1 0 mg/L 1 0 mg/L 1 0 mg/L <br /> Result 10 11 10 10 <br /> MS % Recovery 100 110 100 100 <br /> {• Dup Result 11 1 1 10 10 <br /> MSD % Recov 110 110 100 100 <br /> RPD 95 00 00 00 <br /> RPD Limit 0-20 0-20 0-20 0-20 <br /> LCS # BLK021398 BLK021398 BLK021398 BLK021398 <br /> Prepared Date 2/13/98 2/13/98 2/13/98 2/13/98 <br /> Analyzed Date 2/13/98 2/13/98 2/13/98 2/13/98 <br /> Instrument I D # MTJA5 MTJA5 MTJA5 MTJA5 <br /> Cone Spiked 1 0 mg/L 1 0 mg/L 1 0 mg/L 1 0 mg/L <br /> LCS Result. 10 099 098 099 <br /> LCS %Recov- 100 99 98 99 <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-tree matrix that is analyzed using the same reagents, <br /> GIUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sarnple <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure it <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 /> Pegy Penner <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RFD=Relative%Difference 9802713 BLA <1> <br />