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a <br /> ERM-WEST Project #9186.00 <br /> Port of Stockton <br /> .li <br /> Stockton, California <br /> i <br /> TEG PROJECT #931006C <br /> 3 <br /> QAIQC DATA- MATRIX SPIKE ANALYSES - SOIL <br /> SAMPLE DATE GASOLINE BENZENE TOLUENE ETHYLBNZ XYLENES <br /> NUMBER ANALYZED mg/kg mg/kg mg/kg mg/kg mg/kg <br /> Spiked Conc 1016193 200 1 000 1 000 1 000 3.000 <br /> Measured Conc 207 0 829 0 844 0 931 2.499 <br /> %Recovery 1035% 829% 844% 931% 83.3% <br /> Spiked Conc 1016193 200 1 000 1 000 1 000 3 000 <br /> Measured Conc 219 0 865 0 969 0 988 2 646 <br /> °o Recovery 1095% 865% 969% 988% 882% <br /> RPD 56% 43% 138% 59% 57% <br /> Spiked Conc 1017193 200 1 000 1 000 1 000 3.OW <br /> Measured Conc 195 0 957 1 034 1 045 3 274 <br /> %Recovery 975% 957% 1034% 1045% 1091% <br /> Spiked Conc 1017193 200 1 000 1 000 1 000 3 000 <br /> Measured Conc 200 0 993 1 041 1 035 3.147 <br /> %Recovery 1000% 993% 1041% 1035% 104.9% <br /> RPD 25% 3711/9 07% 10% 40% <br /> ACCEPTABLE RPD LIMIT = 15% <br /> ANALYSES PERFORMED IN TEG's DHS CERTIFIED MOBILE LAB (#1671) <br /> ANALYSES PERFORMED BY Mr Leif Jonsson&Mr Mark McMurry <br /> DATA REVIEWED BY Mr Mark Jerpbak <br /> page 1 <br /> i <br /> Transgiobal Environmental Geochemistry <br /> k�'--. P <br /> Box 162580, Sacramento, CA 95816 Phone (916) 736-3233 Fax: (916) 452-5806 <br />