Laserfiche WebLink
C 4 SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> ,Kaprealian Engineering, Inc Client Project ID Unocal #5421, 7303 Pacific Ave , Stockton <br /> 2401 Stanwell Drive, Suite 400 <br /> Concord, CA 94520 <br /> Attention Mardo Kaprealian, P E OC Sample Group 2110460-516 Reported Nov 25, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> SURROGATE <br /> Method EPA 8010 EPA 8010 EPA 8010 EPA 8010 EPA 8010 EPA 8010 EPA 8010 <br /> Analyst K Nill K Noll K Noll K Noll K Noll K Nil] K Noll <br /> Reporting Units u9/k9 u9/k9 u9/k9 u9/k9 u9/k9 u9/k9 P9/k9 <br /> Date Analyzed Nov 18, 1992 Nov 18, 1992 Nov 18, 1992 Nov 18, 1992 Nov 18 1992 Nov 16, 1992 Nov 16, 1992 <br /> Sample# 211-0491 211-0492 211-0493 211-0494 211-0495 211-0496 211-0497 <br /> Surrogate#1 <br /> % Recovery 109 90 101 89 73 123 120 <br /> Surrogate#2 <br /> % Recovery 104 107 105 105 107 102 105 <br /> SlEGUO NALYTICAL %Recovery Cone of M S -Conc of Sample x 100 <br /> Spoke Cone Added <br /> Relative%Difference Cone of M S -Conc of M S D x 100 <br /> (Cone of M S + Conc of M S D)/2 <br /> S tt ffi �o <br /> Project Manager 2110502 KEI <27> <br />