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I <br /> MATRIX ENVIRONMENTAL LABORATORIES <br /> ' ANALYSIS- EPA 41.8.1; OIL & GREASE SPIKE SUNEMIARY <br /> ' CLIENT: Walsh & Associates <br /> CONTACT: J. Clayton Date Sampled: N/A <br /> COC No: 4071 Date Received: N/A <br /> Project No: 1585--010 Date Extracted: 8/11/93 <br /> ' Sample ID: N/A Date of Analysis: 8/11/93 <br /> Lab ID: LCS/LCSD Matrix: SOIL <br /> ' <br /> CONC CONC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY <br /> ' LCS LCSD LCS LCSD RPD <br /> OIL & GREASE 500 454 448 91% 90% 1% <br /> LCS- LABORATORY CONTROL SPIKE <br /> LCSD LABORATORY CONTROL SPIKE DUPLICATE <br /> RPD RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCENTRATION <br /> t <br /> 3017 h1LGO RF RGI�D i 1G RANCNO CORDOVr1 <br />