Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921 9600 • FAX (916) 921-0100 <br /> RESNA Industries Client Project ID Arco #2130, Stockton <br /> 3164 Gold Camp Drive, Suite 200 <br /> Rancho Cordova, CA 95670 <br /> Attention Eloise Frick OC Sample Group 2010438,41,43 Reported Jan 27, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Lead <br /> Method EPA 7421 <br /> Analyst S Foster <br /> Reporting Units mg/kg <br /> Date Analyzed Jan 23 1992 <br /> CC Sample # 112.0438 <br /> Sample Cone 39 <br /> Spike Cone <br /> Added 125 <br /> Cone. Matrix <br /> Spike 153 <br /> Matrix Spike <br /> % Recovery 91 <br /> Cone. Matrix <br /> Spike Dup 157 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery 94 <br /> Relative <br /> % Difference 26 <br /> l� <br /> SEQUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Conc of M S -Cone of M S D x 100 <br /> Michael R Giles (Conc of MS + Conc of M S D)/2 <br /> Laboratory Director 1120438 RES <2> <br />