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t.� <br /> 1 y <br /> Sequoia 680 Chesapeake Dnve 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 /> qcp 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 /961105-C2 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9611260-01 Reported Nov 23, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Total Recoverable <br /> Petroleum Hydrocarb <br /> OC Batch# OP1111%5520EXA <br /> Anally. Method SM 5520 BF <br /> Prep Method EPA 3510 <br /> Analyst J Aquino/J Ulla <br /> MS/MSD# BLK111196 <br /> Sample Conc ND <br /> Prepared Date 11/11/96 <br /> Analyzed Date 11/12/96 <br /> Instrument I D #. MANUAL <br /> Conc Spiked: 10 mg/L <br /> Result 10 <br />. MS %Recovery 100 <br /> Dup Result 11 <br /> MSD% Recov 110 <br /> RPD 95 <br /> RPD Limit 0-30 <br /> LCS# - <br /> Prepared Date <br /> Analyzed Date <br /> Instrument I D # <br /> Conc. Spiked - <br /> LCS Result <br /> LCS % Recov - <br /> 60-140 <br /> LCS 70-130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-fres matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL 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 /> Peggy Penner <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate,RPO=Relative% Difference 9611260 BLA <8> <br />