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C equ Ola 680 Chesapeake Drive Redwood City, CA 94063 (650) 364-9600 FAX (650) 364-9233 <br /> J 404 N. Wlget Lane Walnut Creek, CA 94598 (915) 988-9600 FAX (925) 988-9673 <br /> IT) <br /> Analytical 819 Striker Avenue, Suite 8 Sacramento, CA 95834 (916 ) 921 -9600 FAX (916 ) 921 - 0100 <br /> IQF 1455 McDowell Blvd. North, Ste. D Petaluma, CA 94954 (707 ) 792- 1865 FAX (707) 792-0342 <br /> Gettler-Ryan - Dublin Client Project ID . Chevron #9-3232, Stockton <br /> 6747 Sierra Court, Suite J Matrix: Solid <br /> Dublin, CA 94568 <br /> Vr <br /> Attention : Greg Gurss QC Sample Group: 9031116-129 Reported : Mar 163 1999f ! <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1 , 1 -Dichlora- Trichloro- Chloro- Aroclor 1260 <br /> ethene ethane benzene <br /> Method : EPA 8010 EPA 8010 EPA 8010 EPA 8082 <br /> Analyst: P. Kosovskaya P. Kosovskaya P. Kosovskaya Star Analytical <br /> MS/MSD <br /> Batch#: 9030166 9030166 9030166 03V9286 <br /> Date Prepared : 3/11 /99 3/11 /99 3/11 /99 3/ 14/99 <br /> Date Analyzed : 3/11 /99 3/11 /99 3/11 /99 3/15/99 <br /> Instrument I . D .#: HP-6 HP-6 HP-6 0 <br /> Cone. Spiked : 1000pg/kg 1000 pg/kg 1000 pg/kg 67 pg/kg <br /> Matrix Spike <br /> % Recovery: 150 170 160 69 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 140 160 140 82 <br /> Relative % <br /> Difference: 6.9 6. 1 13 17 <br /> X�Xff 2M <br /> LCS Batch#: LCS031299 LCS031299 LCS031299 <br /> Date Prepared : 3/12/99 3/12/99 3/12/99 <br /> Date Analyzed : 3/12/99 3/12/99 3/12/99 - <br /> Instrument I . D.#: HP-6 HP-6 HP-6 <br /> LCS % <br /> Recovery: 120 130 130 - <br /> Recovery <br /> Control Limits: 65-135 70-130 70-130 50-150 <br /> Please Note: <br /> The LCS Is a control sample of known, interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL, # 1271 preparation, and analytical methods employed for the samples. The matrix spike Is an aliquot of sample <br /> & # 1894 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 /> lianne Fegley <br /> Project Manager <br /> 9031116.GET <33 > <br />