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Q Sequoia 680 Chesapeake Drive Redwood Clry,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical 819 5trlker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-010 0 <br /> low 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ............ <br /> :: '-ettler-Ryan- Dublin Client Project ID: Tosco#11195, Lathrop <br /> �ro747 Sierra Court, Suite J Matrix: Liquid <br /> Dublin, CA 94568 <br /> Attention: Doug Lee OC Sample Group: 812-1495 Reported: Jan 5, 1999," <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Cadmium Chromium Copper Nickel Lead Zinc Silver <br /> Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Analyst: J. Kelly J.Kelly J.Kelly J. Kelly J. Kelly J. Kelly J. Kelly <br /> MS/MSD <br /> Batch#: 8121682 8121682 8121682 8121682 8121682 9121682 8121682 <br /> Date Prepared: 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 <br /> Date Analyzed: 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 <br /> Instrument I.D.#: MV-4 MV-4 MV-4 MV-4 MV-4 MV-4 MV-4 <br /> Conc. Spiked: 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L <br /> Matrix Spike <br /> % Recovery: 109 95 110 97 88 98 98 <br /> Matrix Spike <br /> (=` 3 Duplicate % <br /> Recovery: 109 95 110 97 98 98 99 <br /> Relative <br /> Difference: 0.0 0.0 0.0 0.0 9.5 0.0 1.0 <br /> LCS Batch#: LCS121898 LCS121898 LCS121898 LCS121898 LCS121899 LCS121898 LCS121898 <br /> Date Prepared: 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 <br /> Date Analyzed: 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 12/22/98 <br /> Instrument I.D.#: MV-4 MV-4 MV-4 MV-4 MV-4 MV-4 MV-4 <br /> LCS % <br /> Recovery: 100 100 110 110 100 100 98 <br /> Recovery <br /> Control Limits: 80-120 80-120 80-120 80-120 80-120 8Q-120 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 /> EOUOIA ANALYTICAL, #1271 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 /> 7 1 interference,the LCS recovery is to be used to validate the batch. <br /> NJu Janne Fegl C <br /> Project Maria <br /> 8121495,GET <8> <br />