Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 - FAX (415) 364-9233 <br /> RESNA Client ProlecfID W0402, Holt Bros ,`Stockton <br /> 1710 Main Street <br /> t Escalon, CA 95320 <br /> Attention Bill Channell OC Sample Group 2074698-700 Reported Aug 10, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst M Nipp M Nspp M Nipp M Nipp <br /> Reporting Units ug/L us/L u9/L ug/L <br /> Date Analyzed Jul 31, 1992 Jul 31, 1992 Jul 31, 1992 Jul 31, 1992 <br /> QC Sample# GBLK073292 GBLK073292 GBLK073292 GBLK073292 <br /> Sample Conc : N D N D N D N D <br /> Spike Conc. <br /> Added: 10 10 10 30 <br /> Conc Matrix <br /> Spike: 9 7 98 95 29 <br /> Matrix Spike <br /> % Recovery- 97 98 95 97 <br /> Conc Matrix <br /> Spike Dup : 9 8 99 96 29 <br /> Matrix Spike <br /> Duplicate <br /> % Recovery: 98 99 96 97 <br /> Relative <br /> %Difference. 10 10 10 00 <br /> WEGUOIA ANALYTICAL %Recovery Conc of M S -Conc of Sample x 100 <br /> (CfiSpike Conc Added <br /> ��} ^ Relative%Difference Conc of M S -Conc of M S D x 100 <br /> r9 v ' {Conc at M S + Cane of MSD)/2 <br /> Iroj"ect Manager 2074698;TVA <6> <br />