Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue a Suite LM a 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 Kaprealian, P E QC Sample Group 1030899-902 Reported Apr 10, 1991 <br /> QUALITY CONTROL DATA REPORT <br /> SURROGATE <br /> Method EPA 8010 EPA 8010 <br /> Analyst EH EH <br /> Reporting Units ug/L ug/L <br /> Date Analyzed Mar 27, 1991 Mar 27, 1991 <br /> Sample# 103-0899 Blank <br /> Surrogate#1 <br /> %Recovery 83 65 <br /> Surrogate#2 <br /> %Recovery. 68 108 <br /> SEQUOIA ANALYTICAL %Recovery Cone of M S -Cone of Sample x 100 <br /> Spike Cone Added <br /> Relative%Difference Cone of MS -Cone of M S D x 100 <br /> Belinda C Vega (Cone of M S + Cone of M S D)/2 <br /> Laboratory Director 1030899 KEI <12> <br />