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r <br /> MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS: BTEX SPIKE SUNEVIARY <br /> CLIENT: SHN Engineers <br /> CONTACT: J. Wallace Date Sampled: 12/1/92 <br /> COC No: 3644 Date Received: 12/1/92 <br /> Project No: 92-3002 Date Extracted: 12/1/92 <br /> Sample ID: MS, 14SD Date of Analysis: 12/1/92 <br /> Lab ID: 924083 Matrix: SOIL <br /> CONC CONC PERCENT <br /> COMPOUND SPIKED MEASURED RECOVERY <br /> MS MSD MS MSD RPD <br /> 1 <br /> BENZENE 1. 00 0.89 0 .97 89% 97% 9% <br /> TOLUENE 1. 00 0. 83 0 .90 83% 90g 80 <br /> ETHYL BENZENE 1. 00 0.72 0.78 72$ 78% 8% <br /> TOTAL XYLENES 3 . 00 2.25 2 .44 75% 81% 8� <br /> MS= MATRIX SPIKE <br /> MSD= MATRIX SPIKE DUPLICATE <br /> RPD= RELATIVE PERCENT DIFFERENCE <br /> CONC= CONCENTRATION <br /> 3017 KILGORE ROAD# 100 0 RANCHO CORDOVA, CA 95742 PHONE (916) 635-3962 • FAX (916) 635-9331 <br />