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680 Chesapeake Drive Redwood City.CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia a N.Wiget Lane Walnut Creek.CA 94108 (510)988-9600 FAX(510)988-9673 <br /> triker Avenue.Suite 8 Sacramento,CA 9` (916)921-9600 FAX(9:6)9Zt-0100 <br /> (D- <br /> Analytical 12s5 McDowell Blvd.North.Ste.D Petaluma,CA 94954-� (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services, Inc. Client Project ID: Shell 4445 Pershing Ave. <br /> 1680 Rogers Ave. Matrix: Liquid <br /> San Jose, CA 95112 <br /> !-Attention: Fran Thie Work Order#: 9805F42 -01-06, 08 Reported Jun 1 i, 1998' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch* GCO60398802004A G0060398802004A GCO50398802004A GC060398802004A GC060398802004A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: D.Newcomb D.Newcomb D.Newcomb D.Newcomb D.Newcomb <br /> MS/MSD #: 8052169 8052169 8052169 8052169 8052169 <br /> Sample Conc.: N.D. N.D. N.D. N.D. N.D. <br /> Prepared Date: 6/3/98 6/3/98 6/3/98 6/3/98 6/3/98 <br /> Analyzed Date: 6/3/98 6/3/98 6/3/98 6/3/98 6/3/98 <br /> Instrument I.D.#: HP4 HP4 HP4 HP4 HP4 <br /> Conc. Spiked: 20f,g/L 20ug/L 20Mg/L 60pg/L 370yg/L <br /> Result: 20 21 21 65 310 <br /> MS %Recovery: 100 105 105 108 84 <br /> Dup. Result: 19 20 20 62 300 <br /> MSD%Recov.: 95 100 100 103 81 <br /> RPD: 5.1 4.9 4.9 4.7 3.3 <br /> RPD Limit: 0-20 0-20 0-20 0-20 0-50 <br /> LCS#: LCS060398 LCS060398 LCS060398 LCS060398 LCS060398 <br /> Prepared Date: 6/3/98 6/3/98 6/3/98 6/3/98 6/3/98 <br /> Analyzed Date: 6/3/98 6/3/98 6/3/98 6/3/98 6/3/98 <br /> Instrument I.D.#: HP4 HP4 HP4 HP4 HP4 <br /> Conc. Spiked: 20Ng/L 20pg/L 20Ng/L 60yg/L 370,ug/L <br /> LCS Result: 20 21 22 66 340 <br /> LCS % Recov.: 100 105 110 110 92 <br /> 60-140 60-140 60.140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> Please Note: <br /> SEQU IAA LYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> E 1271 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. H <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 /> eg nner <br /> o' ct Manager "*MS-Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference 9805F42.BLA <1> <br />