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Sequoia 680 Chesapeake Drive Redwood City 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 /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc Client Project ID Continentlal Grain 62500 0001 <br /> 1117 Lone Palm Avenue <br /> Modesto, CA 95351-1502 <br /> Attention Drew Van Allen QC Sample Group 9811 E49-01-03 Reported Dec 2, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matnx Liquid <br /> Method EPA 8015 <br /> Analyst AM <br /> ANALYTE Gasoline <br /> QC Batch# GC 1 12698BTEX03A <br /> Sample No GW9811F45-01 <br /> Date Prepared 11/26198 <br /> Date Analyzed 11/26/98 <br /> Instrument 1 1)# GCHP03 <br /> Sample Cone , ug/L N D <br /> Cone Spiked, ug/L 250 <br /> Matrix Spike, ug/L 260 <br /> 11 Recovery 104 <br /> Matrix <br /> Spike Duplicate, ug/L 270 <br /> % Recovery 108 <br /> Relative % Difference 3 8 <br /> RPD Control Limits 0-25 <br /> LCS Batch# GC112698BTEX03A <br /> Date Prepared 11/26/98 <br /> Date Analyzed 11/26/98 <br /> Instrument I D# GCHP03 <br /> Cone Spiked, ug/L 250 <br /> LCS Recovery, ug/L 250 <br /> LCS % Recovery 100 <br /> Percent Recovery Control Limits <br /> MSIMSD 60140 <br /> LCs 70 130 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <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 ry 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 /> Kayvan ai <br /> Prole onager <br />