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Sequoia 680 Chesapeake Drive Redwood Clty CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Se <br /> a— ) Se 404 N Wlget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> A1lalyt�eal 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)79Z-1865 FAX(707)792-034Z <br /> • <br /> Cambria Environmental Tech Client Project ID Shell 341 E Main <br /> 114465th St, Ste C Matrix Solid <br /> Oakland, CA 94608 <br /> Attention Paul Waite Work Order# 9803P79 02, 05, 06 Reported Apr 10, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Fraction Organic <br /> Carbon <br /> OC Batch IN032798WBOOA <br /> Analy Method Walkley-Black <br /> Prep Method <br /> Analyst K Cesar <br /> Duplicate <br /> Sample# 9803F7906 <br /> Prepared Date 3/27/98 <br /> Analyzed Date 3/27/98 <br /> Instrument I D.# MANUAL <br /> Sample <br /> Concentration 0 024 <br /> Dup Sample <br /> Concentration 0020 <br /> RPD 18 <br /> RPD Limit 0-20 <br /> SEQUOIA ANAL AL <br /> f 1 <br /> Richard Herling <br /> Project Manager **RPD=Relative%Difference 9803F79 CCC <1> <br />