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`ll' Irl 1 680 Chesapeake Drive Redwood C1ry CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wiget 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 /> WwrAnalytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> ATC Associates, Inc Client Project ID KOK Realty 62581 0001 <br /> 1117 Lone Palm Avenue Matrix Liquid <br /> Modesto, CA 95351-1502 <br /> Attention Tom Lutterman Work Order# 9903721 -01-04 Reported Mar 30, 1999 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Diesel <br /> QC Batch-# SP0317998015EXA <br /> Analy Method EPA 8015 Mod <br /> Prep Method EPA3510 <br /> Analyst K Grubb <br /> BS/BSD# BLK031799 <br /> Sample Conc ND <br /> Prepared Date 3/17/99 <br /> Analyzed Date 3/18/99 <br /> Instrument I D # HP3 <br /> Conc Spiked 500,ug/L <br /> Result 390 <br /> i BS % Recovery 78 <br /> Dup Result 380 <br /> BSD % Recov 76 <br /> RPD 26 <br /> RPD Limit 0-50 <br /> LCS # LC8031799 <br /> Prepared Date 3/17/99 <br /> Analyzed Date 3/18/99 <br /> Instrument I D # HP3 <br /> Conc Spiked 500 ug/L <br /> LCS Result 380 <br /> LCS % Recov 76 <br /> 50-150 <br /> LCS 60-140 <br /> Control Limits <br /> Please Note <br /> *SEQUOIA ANALYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> Elap#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 /> interference,the LCS recovery is to be used to validate the batch <br /> Kayv yai <br /> Proj ct Mana ""MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference 9903721 AAA �1> <br />