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 (510) 988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> Analytical <br /> PDS Services Client Project ID: Tosco#5421;7303 Pacific Ave„Stockton <br /> 2401 Stanwell Dr., Ste. 300 Matrix: Liquid <br /> Concord, CA 94520 <br /> Attention: Jarrel Crider QC Sample Group: 7121025-029 Reported: Dec 31, 1997- <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1,1-Dichloroethene Trichloroethene Chloro- MTBE <br /> benzene <br /> Method: EPA 8010 EPA 8010 EPA 8010 EPA 8260 <br /> Analyst: M.McLachlan M. McLachlan M.McLachlan L. Duong <br /> MS/MSD <br /> Batch#: 9712850-03 9712850-03 9712850-03 971299104 <br /> Date Prepared: 12/22/97 12/22/97 12/22/97 12/18/97 <br /> Date Analyzed: 12r22f97 12/22/97 12/22/97 12/18/97 <br /> Instrument I.D.#: GCIHP-24_2 GC/HP-24_2 GC/HP-24_2 H-6 <br /> Conc. Spiked: 25 pg/L 25 pg/L 25 pg/L 50 mg/L <br /> Matrix Spike <br /> % Recovery: 108 98 100 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 108 98 104 100 <br /> l <br /> Relative% <br /> Difference: 0.0 0.0 3.9 0.0 <br /> LCS Batch#: BLK122397 BLK122397 BLK122397 VMB12185 <br /> Date Prepared: 12/23/97 12/23/97 12/23/97 12/18/97 <br /> Date Analyzed: 12/23/97 12/23/97 12/23/97 12/18/97 <br /> Instrument I.D.#: GC/HP-24-2 GC/HP-24-2 GC/HP-24-2 H-6 <br /> LCS % <br /> Recovery: 120 120 120 96 <br /> % ecovery <br /> Control Limits: 65-135 70-130 70-130 70-130 <br /> f Please Note: <br /> j The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL, #1210 preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> f fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br /> (.-"9 nature on File the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Alan B. Kemp interference,the LCS recover is to be used to validate the batch. <br /> - <br /> Project Manager <br /> 7121025.MPD <13> <br /> 1' <br />