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- SEQUOIA ANALYTICAL =_ <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (415) 686-9600 • FAX (415) 686-9689 <br /> Applied~Geo'Systemsx(Sacramento) talent Project ID ARCO #760/#760-91-1 <br /> 4191 E Power Inn Rd <br /> Sacramento, CA 95826 <br /> Attention Eloise Fnck OC Sample Group 106-0576 Reported Jun 24, 1991 <br /> ,n »rr?rr J♦ 4 v. w . iry <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Diesel <br /> Method EPA 8015 <br /> Analyst JRM <br /> Reporting Units wfa/L <br /> Date Analyzed Jun 24, 1991 <br /> QC Sample# BLK062491 <br /> Sample Cone.. N D <br /> 0 Spike Cone. <br /> Added. 300 <br /> Cone. Matrix <br /> Spike' 220 <br /> Matrix Spike <br /> %Recovery: 73 <br /> Cone. Matrix <br /> Spike Delp • 260 <br /> Matrix Spike <br /> Duplicate — <br /> %Recovery: 87 <br /> Relative <br /> %Difference: 17 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> 4Rt <br /> EQUOIA ANALYTIC L %Recovery Cone of M S -Cone of Sample x 100 <br /> Spike Cone Added <br /> jctl Relative%Dtference Cone of MS -Cone of M S D x 100 <br /> R alerstein (Cone of M S + Cone of M S D) 2 Manager 1060575 APS `15' <br />