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y- — ERM-WEST Project #9186 00 <br /> A F Port of Stockton <br /> a <br /> Stockton, California <br /> i <br /> ' TEG PROJECT #931006C <br /> QA/QC DATA- MATRIX SPIKE ANALYSES - SOIL <br /> SAMPLE DATE GASOLINE BENZENE TOLUENE ETHYLBNZ XYLENES <br /> NUMBER ANALYZED mg/kg mglkg mg/kg mg/kg mg/kg <br /> Spiked Conc 1018193 200 1 000 1 000 1 000 3.000 <br /> Measured Conc 184 0 861 1 039 1 027 3.141 <br /> °o Recovery 920% 861% 1039% 102.701a 104.7% <br /> Spiked Conc 1018193 200 1 000 1 000 1 000 3.000 <br /> Measured Conc 203 0 911 1 067 0 937 3 056 <br /> °e Recovery 1015% 911% 1067% 937% 1019% <br /> RPD 98% 56% 27% 92% 2.7% <br /> Spiked Conc 10115193 200 1 000 1 000 1 000 3 000 <br /> Measured Conc 202 1 019 0 998 0 902 3 223 <br /> %Recovery 1009% 1019% 998% 902% 107.4% <br /> Spiked Conc 10115193 200 1 000 1 000 1 000 30W <br /> Measured Conc 206 1 044 1 034 0 810 2 837 <br /> %Recovery 1029% 1044% 1034% 810% 94.6% <br /> RPD 20% 24% 36010 108% 12.7% <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& Mr Henry Wilkinson <br /> DATA REVIEWED BY Mr Mark Jerpbak <br /> /"V J <br /> !! page 2 <br /> Transgiobai Environmental Geochemistry <br /> ILPO Box 162580, Sacramento, CA 95816 Phone (916) 736-3233 Fax 19161 452-5806 <br />