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1 <br /> SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> 1 (916) 921-9600 • FAX (916) 921-0100 <br /> RESNA Industries v n Client Project ID Arco#2076, Lodi Y v <br /> 3164 Gold Camp Dr, Suite 200 <br /> Rancho Cordova, CA 95670 <br /> Attention Jay Johnson QC Sample Group 210-0500 Reported Oct 22, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> JI ANALYTE <br /> pH Flashpoint <br /> Method EPA 9045 EPA 1010 <br /> Analyst Y Arteaga K Follett <br /> Reporting Units pH units °C <br /> I Date Analyzed Oct 20, 1992 Oct 19, 1992 <br /> QC Sample # 210-2695 210-2505 <br /> Sample Cone.- 85 >100 <br /> Spike Conc. <br /> Added: N/A N/A <br /> Cone. Matrix <br /> Spike: N/A N/A <br /> Matrix Spike <br /> %Recovery: N/A N/A <br /> Sample Dup. 85 >100 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: N/A N/A <br /> Relative <br /> %Difference• 00 00 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> SEQUOIA ANALYTICAL %Recovery Cone of M S -Cone of Sample x 100 <br /> 4Spike Cone Added <br /> Relative%Difference Cone of M S -Cone of M S D x 100 <br /> Michael R Giles (Cone of M S + Cone of M S D)/2 <br /> Laboratory Director <br /> 2100500 RES <7> <br />