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4 z <br /> Ci) Sequoia 680 Chesapeake Drive 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 /> �I Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> vfi w v <br /> Blaine Tech Services,rinc ' Client Project ID Chevron 9-2033, 950815-H1 <br /> 1985 Timothy Drive Matrix Liquid <br /> ,,San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9508B93-02, 04 Reported Aug 25, 1995 <br /> + S ♦r vv } } <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GC081895BTEX03B GC081895BTEX03B GCO81895BTEX03B GCO81895BTEX03B <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method- EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J Woo J Woo J Woo J Woo <br /> MS/MSD#: 9508A1801 950BA1801 9508A1801 950BA1801 <br /> Sample Conc : N D N D N D N D <br /> Prepared Date. 8/19/95 8/19/95 8/19/95 8/19/95 <br /> Analyzed Date: 8/19/95 8/19/95 8/19/95 8/19/95 <br /> Instrument I D #: GCHP3 GCHP3 GCHP3 GCHP3 <br /> Conc Spiked. 10Ng/L 10u9/L 10Erg/L 30pg/L <br /> Result 10 10 10 30 <br /> MS% Recovery: 100 100 100 100 <br /> Dup Result: 10 98 99 29 <br /> MSD % Recov : 100 98 99 97 <br /> RPD: 00 20 10 34 <br /> RPD Limit. 0-50 0-50 0-50 0.50 <br /> LCS#: - - - - <br /> Prepared Date: - - <br /> Analyzed Date: - - - - <br /> Instrument LD #: - - <br /> Conc Spiked: - - <br /> LCS Result: - - - <br /> LCS % Recov : - - - - <br /> LCS 71-133 72-128 72-130 71-120 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interierent free matrix that is analyzed using the same reagents, <br /> V10 % Y'TICAL 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 /> ner <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference 9508893 SLA <4> <br />