Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> . (415) 686-9600 0 FAX (415) 686-9689 <br /> Kaprealian Engineering, Inc Client Project ID Unocal,7303 Pacific Ave,Stockton <br /> P O Box 996 <br /> Benicia, CA 94510 <br /> Attention Mardo Kapreallan, P E 0C Sample Group 1030899-902 deported Apr 10, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Diesel <br /> Method EPA 8015 <br /> Analyst K Lee <br /> Reporting Units Ng/L <br /> Date Analyzed Apr 3, 1991 <br /> OC Sample# BLK040191 <br /> Sample Conc N D <br /> iSpike Conc. <br /> Added 300 <br /> Conc Matrix <br /> Spike. 290 <br /> Matrix Spike <br /> % Recovery 97 <br /> Conc Matrix <br /> Spike Dup : 350 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery 120 <br /> Relative <br /> % Difference 19 <br /> &EQUOIA ANALYTICAL %Recovery Conc of M S -Cone of Sample x 100 <br /> Spike Conc Added <br /> Relative%Difference Conc of M S -Cone of M S D x 100 <br /> LvVegt I (Conc of M S + Conc of M S D) 2 <br /> Laboratory Director 1030899 KEI <7> <br />