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r <br /> Hydro Environmental Technologies, Inc - Project 007-346 <br /> Central California Traction Company <br /> Stockton, California <br /> TEG PROJECT#00712E <br /> QA/QC DATA - MATRIX SPIKE ANALYSES - SOIL <br /> SAMPLE DATE DIESEL GASOLINE <br /> NUMBER ANALYZED mglkg mg/kgm /kg <br /> 000714 0740 <br /> Spiked Conc 7/15/00 500 200 <br /> Measured Conc 537 184 <br /> Recovery 1074% 918% <br /> Spiked Conc 7/15100 500 200 <br /> Measured Conc 504 190 <br /> % Recovery 1009% 952% <br /> RPD 63% 37% <br /> 000713 1740 <br /> Spiked Conc 7/15/00 50 0 20 0 <br /> Measured Conc 4 i6 8 <br /> Recovery 888 7% 84 1% <br /> Spiked Conc 7/15/00 500 200 <br /> Measured Conc 481 174 <br /> %Recovery 961% 872% <br /> RPD 80% 36% <br /> 000714 0740 <br /> Spiked Conc 7/16/00 500 200 <br /> Measured Conc 492 174 <br /> Recovery 983% 868% <br /> Spiked Conc 7/16/00 500 200 <br /> Measured Conc 463 184 <br /> Recovery 926% 921% <br /> RPD 60% 60% <br /> ACCEPTABLE RPD LIMIT= 15% <br /> ANALYSES PERFORMED IN TEG-Northern California's DHS CERTIFIED LAB <br /> ANALYSES PERFORMED BY Mr Leif Jonsson <br /> DATA REVIEWED BY Mr Mark Jerpbak <br /> 11350 Monier Park Place, Rancho Cordova, CA 95742 Phone (916) 853-8010 Fax (916) 853-8020 <br />