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OCT 27 '95 02:08PM SEQUOIA ANALYTICAL P.9 <br /> - i Sequoia 6so Chesapeake Drive Redwood City,CA 946 (415) 364.9600 FAX(415) 1"9233 <br /> .. 404 N Wept tine V?alnut.Creek,CA 94S98 (91C) 9ee-9600 FAX(510)9Ss-11"1 <br /> Analytical <br /> 919 Striker Aieawe,Suite a Sacmirnento,CA 91934 (916) 921.96M FAX(916)921.0100 <br /> { �7 INSaAl�16:[Ai9:i�w ' , v�l� 4 7LF `I�.ASi �Y <br /> Touchstone evelopments Client Project ID 9-1452, Chevron 9-1450 <br /> 5007 Brslboa Drive Matrix Solid <br /> Oaldand, CA Mi 1 <br /> Anerttian- Robert Mallory Work Order#- 9510387 -01 Re arted, Oct 13, 1995 <br /> OAWLN� 1 w <br /> QUALITY CONTROL DATA REPORT <br /> a Beryllium Cadmium Chrornium Niek01 <br /> 00 Batch#: ME1009958010MDtt ME1009958010MOS ME10099SW10MDE ME100226M10MDE <br /> Anally. Methedr EPA 6010 GPA 6010 GDA 6010 FDO Min <br /> Prop. Method: EPA 3050 EPA 3050 EPA 3050 EPA 3050 <br /> Analyst: C Madofesser C Medefeeser C Medefesser C Medefesser <br /> MS/MSD ill: 951033801 M1033801 951OUNt 951033801 <br /> Sample Cone.: N D. ND 29 37 <br /> Prepared Date: 10/9/85 10/9/95 10/9/95 10/s/93 <br /> Anitlyaed Dale: -10/io/95 10/10/g5 10/10/95 10/10/95 <br /> Instrumertt I.D.#: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Conc. Spiked: 100 m9/Kg 100 mg/Kg 100 mg/Kg 100 mg/Kg <br /> Result: 99 100 130 180 <br /> MS% Recovery: se 100 101 93 <br /> * Dup. Result: s9 100 130 130 <br /> MSD%Recov.: 99 100 101 93 <br /> RPD: 00 oa 00 00 <br /> RPD Limit: 0-30 0-30 030 ow <br /> LCS#: BLK100WS SLKi009t15 BLK100895 BLK10DOOS <br /> Prepared Date: 10/9/05 10/9/95 10/9/95 10/9/95 <br /> Analyzed Date: 10/10/95 10/10/95 10/10/95 10/10/95 <br /> Instrument I.D.#: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Cone. Spiked, 100 mg/Kg 100 mg/Kg 100 m9/Kg 100 mg/Kg <br /> LCS Result 100 110 100 100 <br /> LCS%Reeov.: 100 110 100 100 <br /> LCS 75.125 75-125 75.126 75.125 <br /> Control Limits <br /> Please Nota <br /> The LCS is a control sample of known,interferent4reo matrix that Is analyzed using She same reagents, <br /> SI: OLA ANALYTICAL preparation,and analytical methods employed for the samples. The matrix spike Is an aliquot of sample <br /> !aei <br /> fortified with known quant"s of speo�ie Compounds and subjected to the entire analytical procedure,the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> prnterferenoe the LCS reeis to be used to validate the batch <br /> Cargasacchl ove <br /> Project Manager "MS=Matdx Spike,M s M9 Duplicate,RPOuRalative%Differance I 9510367 TTT e IN <br />