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MATRIX ENVIRONMENTAL LABORATORIES <br /> 1 <br /> ANALYSIS: BTEX SPIKE SUMMARY <br /> ' CLIENT: Walsh & ASSoaiates <br /> CONTACT: J. Clayton Date Sampled: N/A <br /> ' COC No: 4071 Date Received: N/A <br /> Project No: WALSH 1685-010 Date Extracted: 8/9/93 <br /> Sample ID: N/A Date of Analysis: 8/10/93 <br /> ' Lab ID: LCS/LCSD Matrix: SOIL <br /> CONC CONC PERCENT <br /> ' COMPOUND SPIKED MEASURED RECOVERY <br /> o.g/kg LCS LCSD LCS LC.3D ,RPD <br /> ' 3ENZENE 1. 0.97 0. 95 97$ 95$ 3$ <br /> TOLUENE 1. 0. 97 G. 93 57t- 93$ -.% <br /> ETHYL BENZENE 1. 0. 96 0. 92 96% 92% 4$ <br /> TOTAL XYLENES 3. 2 . 89 2. 78 96% 93% 4$ <br /> ' LCS= LABORATORY CONTROL SPIKE <br /> LCSL= LABORATORY CONTROL SPIKE DUPLICATE <br /> ' RPD= RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCFNiRATION <br /> 1 <br /> i <br /> I <br /> 1 <br />