Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX (650) 364-9233 <br />404 N Wiget Lane walnut Creek, CA 94598 (925) 988-9600 FAX (925) 988-9673 <br />—5)— 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 9Z1-9600 FAX (916) 9ZI -0100 <br />AwAnalytical 1455 McDowell Blvd North Ste D Petaluma. CA 94954 (707) 792-1865 FAX (707) 792-0342 <br />attler-Ryan - Oublin Client Project IIS Chevron #9-5775, Lodi <br />6747 Sierra Court, Suite J Matrix Solid <br />Dublin, CA 94568 <br />Attention Greg A Gurss QC Sample Group 808-2196 Reported Sep 1, 1998 <br />QUALITY CONTROL DATA REPORT <br />ANALYTE <br />Acenaphthene <br />4-Nitrophenol <br />2,4-Dinitro- <br />Pentachloro- <br />Pyrene <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />toluene <br />phenol <br />8/26/98 <br />Prep Method <br />EPA 3550 <br />EPA 3550 <br />EPA 3550 <br />EPA 3550 <br />EPA 3550 <br />Method <br />EPA 8270 <br />EPA 8270 <br />EPA 8270 <br />EPA 8270 <br />EPA 8270 <br />Analyst <br />L Diaz <br />L Diaz <br />L Diaz <br />L Diaz <br />L Diaz <br />MS/MSD <br />Batch# <br />Date Prepared <br />Date Analyzed <br />Instrument I D # <br />Conc Spiked <br />Matrix Spike <br />°% Recovery <br />Matrix Spike <br />Duplicate % <br />Recovery <br />Relative % <br />Difference <br />RPD Limit <br />8082220 <br />8082220 <br />8082220 <br />8082220 <br />8082220 <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />8/26/98 <br />8/26/98 <br />8/26/98 <br />8/26/98 <br />8/26/98 <br />GC/MS 1 <br />GC/MS 1 <br />GC/MS 1 <br />GC/MS 1 <br />GC/MS 1 <br />3300 pg/kg <br />5000,ug/kg <br />3300 pg/kg <br />5000 pg/kg <br />3300 pg/kg <br />76 <br />62 <br />73 <br />80 <br />79 <br />79 <br />62 <br />76 <br />82 <br />79 <br />39 <br />00 <br />41 <br />25 <br />00 <br />0-40 <br />040 <br />0-40 <br />0-40 <br />0-40 <br />LCS Batch# <br />BLK0825988 <br />Date Prepared <br />8/25/98 <br />Date Analyzed <br />8/26/98 <br />Instrument I D # <br />GC/MS 1 <br />LCS % <br />8/26/98 <br />Recovery <br />88 <br />BLK082598B <br />BLK082598B <br />BLK082598B <br />BLK082598B <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />8/25/98 <br />8/26/98 <br />8/26/98 <br />8/26/98 <br />8/26/98 <br />GC/MS 1 <br />GC/MS 1 <br />GC/MS 1 <br />GC/MS 1 <br />74 88 86 94 <br />ecovery <br />Control Limits 31-137 11-114 28-89 17 109 35-142 <br />SEQUOIA ANALYTICAL, #1271 <br />0W4VV <br />W <br />dlianne Fegley <br />Project Manager <br />Please Note <br />The LCS is a control sample of known, interferent free matrix that is analyzed using the same reagents, <br />preparation, and analytical methods employed for the samples The matrix spike is an aliquot of sample <br />fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br />the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br />interference the LCS recovery is to be used to validate the batch <br />Page 2 of 2 <br />ON <br />8082196 GET <I0> <br />