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TAB 1 <br /> Historical Soil Sample Analytical Results <br /> Ranch Market <br /> 23569 South Santa Fe Road <br /> Riverbank,Cahfomra <br /> Ethyl EPA method 8260 B Total <br /> Sample Date Depth Benzene Toluene Benzene Xylenes TPHg MtBETBA RIPE ETBA TAME EDB Lead <br /> D Sampled (feet) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) {mg/kg) {mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) <br /> AS-1 09/21/00 15 <0 020 006 022 36 100 c <0 020 — — -- -- --- <br /> 20 260 1,100 400 2,000 24,000 c <20 <br /> 25 66 12 28 16 160 c 052 -- -- --- --- --- <br /> 35 26 29 032 1 7 20 c 032 -- --- --- --- --- <br /> 50 1 <0 0050 000921 <0 00501 0020, <110 c I <0 0050 --- --- --- --- --- <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons as gasoline(EPA method 8015 modified,unless noted otherwise) Oxygenates include <br /> MTBE=Methyl tert-butyl ether MTBE=Methyl-tert-butyl Ether <br /> BTEX via EPA method 8020 DIPE=Di isopropyl Ether <br /> SP=sample collected from Soil holding piles for characterization ETBE=Ethyl-tert-butyl Ether <br /> =not known or not analyzed TAME=Tert Amyl methyl Ether <br /> mg/kg=milligrams per kilo gram or parts per-million TBA=Tert-Butanol <br /> ND=Non Detect(below laboratory reporting limit) 1,2-DCA=1,2 Dichloroethane <br /> a=Oxygenates, 1,2-DCA,and 1-2-EDB via EPA 8260 EDB=Drbromoethane <br /> b=MW-5 and MW-7not sampled See SB 2 for data near MW-5 and SB-3 for data near MW 7 <br /> c=BTEX,TPHg,and MtBE via EPA 82608 <br /> I <br /> i <br /> File Project\Riverbank%Tables\Rb-SOI"9-O0 xis Page 4 of 4 02/18/2003 <br />