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WILLIAM J. HUNTER & ASSOC. <br /> George Lechich - Valley Showcase <br /> eq 913 Fremont St., Stockton, California <br /> TEG PROJECT#51127'E <br /> QA/QC DATA - MATRIX SPIKE ANALYSES - SOIL <br /> SAMPLE DATE GASOLINE BENZENE TOLUENE ETHYLBNZ XYLENES <br /> NUMBER ANALYZED mglkg mg/kgm /kgmqlkg m Lk mg/kgmglkg mg/kg <br /> A-4 10' <br /> Spiked Canc. 11/27/95 20.0 0.0100 0.0100 0.0100 0.0300 <br /> Measured Conc, 15.9 0.0094 0.0092 0.0078 0.0268 <br /> %Recovery 79.6% 94.0% 92.0% 78.0% 89.3% <br /> Spiked Conc. 11/27/95 20.0 0.0100 0.0100 0.0100 0.0300 <br /> Measured Conc, 16.8 0.0097 0.0096 0.0075 0.0260 <br /> %Recovery 84.0% 97.0% 96.0% 75.0% 86.7% <br /> RPD 54% 3.1% 4.3% 3.9% 3.0% <br /> i <br /> A-i 10' <br /> Spiked Conc. 11/28/95 20.0 0.0100 0.0100 0.0100 0.0300 <br /> Measured Conc. 16.4 0.0082 0,0083 0.0082 0.0266 <br /> %Recovery 81.9% 82.0% 83.0% 82.0% 88.7% <br /> Spiked Conc. 11/28/95 20.0 0.0100 0.0100 0.0100 0.0300 <br /> Measured Conc. 17.2 0.0088 0.0087 0.0088 0.0273 <br /> %Recovery 86.1% 88.0% 87.0% 88.0% 91.05/0 <br /> RPD 4.9% 7.1% 4.7% 7.1% 2.6% <br /> ACCEPTABLE RPD LIMIT= 15% <br /> ANALYSES PERFORMED IN TEG's DHS CERTIFIED MOBILE LAB (#2012) <br /> ANALYSES PERFORMED BY: Mr. Henry Wilkinson <br /> DATA REVIEWED BY., Mr. Mark,Ierp6akEIV <br /> r -S <br /> REC <br /> Transglobal Environmental Geochemistry <br /> PO Box 162580, Sacramento, CA 95816 Phone: (916) 736-3233 Fax: (916) 452-5806 <br />