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Sequoia 680 Chesapeake Drive Redwood CiM CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wigct Lane Walnut Creek, CA 94598 (SSD) 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 /961125-Ai <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9611 H98 -01 Reported Dec 11, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Total Recoverable <br /> Petroleum Hydrocarb <br /> OC Batch# OP120396552oEXA <br /> Analy Method. SM 5520 BI= <br /> Prep Method: EPA3510 <br /> Analyst. J Aquino <br /> MS/MSD # BLK120396 <br /> Sample Conc N D <br /> Prepared Date 12/3/96 <br /> Analyzed Date 12/4/96 <br /> Instrument I D #: MANUAL <br /> Conc. Spiked- 10 me/L <br /> Result 90 <br /> MS % Recovery 90 <br /> . Dup Result. 96 <br /> MSD % Recov - 96 <br /> RPD 65 <br /> RPD Limit 0-30 <br /> LCS # BLK120596 <br /> Prepared Date 12/5/96 <br /> Analyzed Date 12/6/96 <br /> Instrument I D #: MANUAL <br /> Conc Spiked. 10 mg/L <br /> LCS Result 94 <br /> LCS %Recov 94 <br /> MS/MSD 60-140 <br /> LCS 70-130 <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 /> S IA NALYTICAL 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 /> interference,the LCS recovery is to be used to validate the batch <br /> P gg ner <br /> Pr t anager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9611H98 BLA <1> <br /> `6d' _ <br />