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r <br /> QUALITY ASSURANCE REPORT <br /> SPIKE DUPLICATE RESULTS <br /> Client: Lab Number: QSD VS20612 <br /> ZymaX envirotechnology, inc. Collected: <br /> ;. 71 Zaca Lane, Suite 110 Received: <br /> i San Luis Obispo, CA 93401 Matrix: Soil <br /> Project: Sample Description: <br /> ' Quality Assurance Spike Duplicate <br /> Project Number: Analyzed: 06/12/01 <br /> Collected by: Method: EPA 8260 <br /> CONSTITUENT Amount Spiked Amount Recovered Percent Relative Percent <br /> mg/kg mg/kg Recovery Difference* <br /> Benzene 0.015 0.017 113 6 <br /> Toluene 0.169 0.168 99 4 <br /> Ethyl benzene 0.044 0.043 98 2 <br /> ' Xylenes 0.233 0.217 93 1 <br /> Percent Surrogate Recovery 101 <br /> f ZymaX envirotechnology, inc. is certified by CA Department of Health Services: Laboratory #1717 <br /> *Relative Percent Difference of the spike and spike duplicate <br /> t <br /> �3 <br /> Submitted by, <br /> ZymaX envirotechnology, inc. <br /> F. VS20612 <br /> MSD #2 <br /> VS20612a.xls Michael Ng <br /> MN/jgt/bp Assistant Lab Director <br /> 805.544.4696 71 zoa Lane <br /> .�. ..7•i., -Yr rr r nm 'an Luis Obispo CA 93401 <br /> (nx P.0!5 544.8226 <br />