Laserfiche WebLink
Sequoia 680 weake Drive Redwood City,CA 9406 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Gettler-Ryan-Dublin Client Project ID: T6sco 76#11193, Stockton <br /> 6747 Sierra Court, Suite J Matrix: Solid <br /> :;:Dublin, CA 94568 <br /> Attention: Haig Kevork QC Sample Group: 8120955-959 Reported: Dec 15, 1998;;; <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluene Ethyl Xylenes Lead <br /> Benzene <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 6010 <br /> Analyst: D.Newcomb D.Newcomb D.Newcomb D. Newcomb J. Kelly <br /> MS/MSD <br /> Batch#: 8120646 8120646 8120646 8120646 8120771 <br /> Date Prepared: 12/9/98 12/9/98 12/9/98 12/9/98 12/11/98 <br /> Date Analyzed: 12/9/98 12/9/98 12/9/98 12/9/98 12/14/98 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 MV-3 <br /> Conc. Spiked: 0.80 mg/kg 0.80 mg/kg 0.80 mg/kg 2.4 mg/kg 50 mg/kg <br /> Matrix Spike <br /> % Recovery: 103 89 90 100 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 99 85 88 100 <br /> Relative% <br /> Difference: 3.7 4.3 2.8 0.0 9.8 <br /> LCS Batch#: 4LCS121198 4LCS121198 4LCS121198 4LCS121198 LCS121198 <br /> Date Prepared: 12/11/98 12/11/98 12/11/98 12/11/98 12/11/98 <br /> Date Analyzed: 12/11/98 12/11/98 12/11/98 12/11/98 12/14/98 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 MV-3 <br /> LCS % <br /> Recovery: 99 84 88 96 106 <br /> Recovery <br /> Control Limits: 50-150 50-150 50-150 50-150 80-120 <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 /> L I 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 recoveEZ is to be used to validate the batch. <br /> lianne Fegiey <br /> Project Manager *Value undeterminable due to matrix interference and/or concentration in sample. <br /> 8120955.GET <3> <br /> .AQ. <br />