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TREATEK - CRA COMPANY <br />PROJECT #249-30 <br />MAJOR MART SITE <br />Alpine Way & West Lane, Stockton, CA <br />TEG PROJECT #930309C <br />QA1QC DATA - MATRIX SPIKE ANAYLSIS - SOIL ANALYZED 3110193 <br />SPIKED MEASURED % <br />COMPONENT CONC CONC RECOVERY <br />CHLOROFORM <br />(mglkg) <br />1 000 <br />0 890 <br />890% <br />TRICHLOROETHENE <br />(mglkg) <br />1 000 <br />1 184 <br />1184% <br />112 TRICHLOROETHANE <br />(mglkg) <br />1 000 <br />0 807 <br />807% <br />TETRACHLOROETHENE <br />(mglkg) <br />1 000 <br />0 888 <br />888% <br />1112 TETRACHLOROETHANE <br />(mg/kg) <br />1 000 <br />0 862 <br />862% <br />BROMOFORM <br />(mglkg) <br />1 000 <br />0 738 <br />738% <br />123 TRICHLOROPROPANE <br />(mg/kg) <br />1 000 <br />0 851 <br />851% <br />12 DICHLOROBENZENE <br />(mglkg) <br />1 000 <br />0 758 <br />758% <br />BENZENE <br />(mglkg) <br />1 000 <br />0 972 <br />972% <br />TOLUENE <br />(mg/kg) <br />1 000 <br />0 923 <br />923% <br />ETHYLBENZENE <br />(mg/kg) <br />1 000 <br />0 998 <br />998% <br />XYLENES <br />(mg/kg) <br />3 000 <br />2 890 <br />963% <br />SPIKED MEASURED % <br />COMPONENT CONC CONC RECOVERY RPD <br />CHLOROFORM <br />(mglkg) <br />1 000 <br />0 990 <br />990% <br />106% <br />TRICHLOROETHENE <br />(mglkg) <br />1 000 <br />1 177 <br />1177% <br />06% <br />112 TRICHLOROETHANE <br />(mglkg) <br />1 000 <br />0 875 <br />875% <br />81% <br />TETRACHLOROETHENE <br />(mg/kg) <br />1 000 <br />0 866 <br />866% <br />25% <br />1112 TETRACHLOROETHANE <br />(mglkg) <br />1 000 <br />0 880 <br />880010 <br />21% <br />BROMOFORM <br />(mglkg) <br />1 000 <br />0 835 <br />835% <br />123% <br />123 TRICHLOROPRO PANE <br />(mg/kg) <br />1 000 <br />0 943 <br />943% <br />103% <br />12 DICHLOROBENZENE <br />(mglkg) <br />1 000 <br />0 845 <br />845% <br />109% <br />BENZENE <br />(mglkg) <br />1 000 <br />0 889 <br />889% <br />89% <br />TOLUENE <br />(mglkg) <br />1 000 <br />0 835 <br />835% <br />100% <br />ETHYLBENZENE <br />(mglkg) <br />1 000 <br />0 938 <br />93 B% <br />62% <br />XYLENES <br />(mglkg) <br />3 000 <br />2 770 <br />923% <br />42% <br />ACCEPTABLE RPD LIMITS= 75% <br />ANALYSES PERFORMED IN TEG'S DONS CERTIFIED MOBILE LAB (#1671) <br />ANALYSES PERFORMED BY Mr Leif Jonsson & Mr Henry Wilkinson <br />DATA REVIEWED BY Mr Mark Jerpbak <br />Transglobal Environmental Geochemistry <br />36-3233 Fax (916) 452-5806 <br />PO Box 162580, Sacramento, CA 95816 Phone (916) 7;� <br />