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. ENV1RONMEkTAL <br /> CHEMICAL rficoLrs�s LABORATORIES, 1 N C <br /> e PETROLEU11 J.J.EGLIN,REG.CHEM.EN12A. <br /> o.• 4100 PIERCE AD., BAKERSFIELD, CALIFORNIA 93308 PHONE 327-4411 <br /> M QUALITY CONTROL DATA <br /> € Water Work <br /> s Spike,.-. <br /> 1710 ['fain Street Analysis Date: 17-Aug-89 <br /> Escalon, CA 95320 Sample Matrix: Soil <br /> Attention: Bill Channell Units: u81g <br /> t; <br /> >: Lab No: 6339-3 <br /> Sample Desc: Stephens Marine #20147-1 <br /> t4 MW-2A,8J14C89 <br /> u� <br /> Conc. Spike <br /> 64 Sample of Spike Dup Spike <br /> Constituent Conc. Spike % Rec % Rec RPD <br /> -------------------------------------------------------------------- <br /> Benzene ND 5.01 93.81 98.05 4 42 <br /> " -' Toluene ND 5.03 104.55 103.81 0.71 <br /> Ethyl Benzene ND 5.09 99.61 98.35 1.27 <br /> L' tw p-Xylene ND 5.02 102.17 100.31. 1.84 <br /> Imo» m-Xylene ND 5.11. 103.90 102.75 1.11 <br /> o-Xylene ND 5.03 102.17 102.18 0.01 <br /> ' TPH Gas ND 301.05 114.41 105.14 8.44 <br /> .a <br /> �.; QC Comment✓: <br /> ND = None Detected <br /> Spiked Sample Concentration - Sample Concentration <br /> Recovery = -------------------------------------------------- X 100 <br /> (Concentration of Spike) <br /> '.. RPD (Relative Percent Difference) <br /> Spiked Sample Conc. - Spiked Duplicate Sample Conc. <br /> x 100 <br /> (Average Conc. of Spikes)----------------------------------------------------- <br /> - -- ------ <br />