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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (915)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 4%w Analytical 1455 McDowell Blvd.North,Ste.D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ' ATC Associates, Inc. Client Project ID: Inland Paint 17295.0001 <br /> 1260 Graphics Drive <br /> ' Modesto, CA 95351-1502 <br /> Attention: Drew Van Allen QC Sample Group: 9809C78-01-03 Reported: Oct 1, 1998 <br /> ' QUALITY CONTROL DATA REPORT . <br /> Matrix: Liquid <br /> Method: EPA 801018020, 6011602 <br /> ' Analyst: C. Medina <br /> ANALYTE 1,1-DCE TCE Chlorobenzene Benzene Toluene Chlorobenzene <br /> ' QC Batch #: GCO925980VOA24A <br /> Sample No.: 9809865-03 <br /> Date Prepared: 9124198 9124198 91241911 9124198 9124198 9124198 <br /> ' Date Analyzed: 9124198 9124198 9124198 9124198 9124198 9124198 <br /> Instrument I.D.#: gchp24_2 gchp24_2 gchp24_2 gchp24_2 gchp24_2 gchp24_2 <br /> Sample Conc, ug/L. N.D. N.D. N.D. N.D. N.D. N.D. <br /> ' Conc. Spiked, ug/L: 25 25 25 25 25 25 <br /> Matrix Spike, ug/L: 24 22 25 24 23 23 <br /> % Recovery: 96 88 100 96 92 92 <br /> Matrix <br /> Spike Duplicate, uglL: 23 23 27 24 24 24 <br /> ' % Recovery: 92 92 108 96 96 96 <br /> Relative % Difference: 4.3 4.4 7.7 0.0 4.3 4.3 <br /> ' RPD Control Limits: 0-50 0-50 0-50 0-50 0-50 0-50 <br /> ' LCS Batch#: VWLCS092593A <br /> Date Prepared: 9125198 9125198 9125198 9125198 9125198 9125198 <br /> Date Analyzed: 9125198 9125198 9125198 9125198 9/25198 9/25198 <br /> ' Instrumentl.D.#: gchp24_2 gchp24_2 gchp24_2 gchp24_2 gchp24_2 gchp24_2 <br /> Conc. Spiked, ug/L: 25 25 25 25 25 25 <br /> ' Recovery, ug/L: 28 25 30 26 26 26 <br /> LCS % Recovery: 112 100 120 104 104 104 <br /> Percent Recovery Control Limits: <br /> ' MSIMSD 60.140 60-140 60-140 60-140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 70-130 70-130 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 /> VKa�yvan <br /> QUOIA ANALYTICAL , 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 recover is to be used to validate the batch. <br /> Ki <br /> Project Manager <br />