Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord,California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> prealian Engineering, Inc Client Project 1D Former Unocal Bulk Plant #0950, Stockton <br /> 401 Stanwell Dr, Ste 400 <br /> Concord, CA 94520 <br /> Attention Mardo Kapreallan, P E QC Sample Group 3030009-015 Reported Mar 11, 1993 <br /> QUALITY CONTROL DATA REPORT <br /> SURROGATE <br /> Method EPA 8015 EPA 8015 EPA 8015 EPA 8015 EPA 8015 EPA 8015 EPA 8015 <br /> Analyst K Wimer K Wimer K Wimer K Wimer K Wimer K Wimer K Wimer <br /> Reporting Units ug/L N9/L uS/L Y3/L N9/L u9/L ug/L <br /> Date Analyzed Mar 9, 1993 Mar 9, 1993 Mar 9, 1993 Mar 9, 1993 Mar 11, 1993 Mar 9 1993 Mar 9, 1993 <br /> Sample # 303-0009 303-0010 303-0011 303-0012 303-0013 303-0014 303-0015 <br /> 0 <br /> Surrogate <br /> %Recovery 104 109 109 105 96 105 88 <br /> 7EI014UAANALYTICAL %Recovery Cone of M S -Cone of Sample x 100 <br /> Spike Cone Added <br /> Relative%Di ference Conc of M S -Conc of M S 0 x 100 <br /> C leffo (Conc of M S + Conc of M S D)/2 <br /> Project Manager 3030009KE] <s> <br />