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ZYMPA QUALITY ASSURANCE REPORT <br /> SPIKE DUPLICATE RESULTS <br /> Client: Lab Number: QSD VA80706 <br /> ZymaX envirotechnology, inc. Collected: <br /> 71 Zaca Lane, Suite 110 Received: <br /> San Luis Obispo, CA 93401 Matrix: Aqueous <br /> Project: Sample Description: <br /> Quality Assurance Spike Duplicate <br /> Project Number: Analyzed: 07/06/01 <br /> Collected by: I Method: See Below <br /> i <br /> P <br /> CONSTITUENT Amount Spiked Amount Recovered Percent Relative Percent <br /> ug/L ug/L Recovery Difference` j <br /> Benzene 3.4 3.1 91 3 {I <br /> Toluene 36.7 37.8 103 4 <br /> Ethylbenzene 10.8 10.6 98 16 <br /> Xylenes 56.9 57.9 102 14 <br /> Percent Surrogate Recovery 104 <br /> TOTAL PETROLEUM HYDROCARBONS <br /> Gasoline 500. 486. 97 5 <br /> BTX as a Percent of Fuel 19 20 <br /> ZymaX envirotechnology, inc. is certified by CA Department of Health Services: Laboratory #1717 <br /> *Relative Percent Difference of the spike and spike duplicate <br /> Note: Analyzed by EPA 8260 and GC/MS Combination. <br /> Submitted by, <br /> ZymaX envirotechnology, inc. <br /> VA80706 <br /> MSD #8 <br /> VA80706q.xls Michael Ng <br /> MN/sw/bm Assistant Lab Director <br /> 805.544.4696 71 Zn,-,-i Ltno; <br /> WWW.Z maXosa.com San Luis Obispo CA. 3C]i <br /> }I Inx 305.54k..82".0 <br />