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Table I Soil Sample Analytical Results Ranch market 23569 South santa Fe Road Riverbank,California EPA method 8260 B Total'� -TBA- DIPE ETBA TAME 1,2-DCA EDB I Lead 9 `(rink/k (mg/kg) (,Wk (.g/kg) (mg/kg) (mg/kk) (mg/WA- Tank Pit Samples #I North End 05/20/91 10 0.017 0.015 <0.005 0.011 3.2 --- --- --- <10 <5.0 #1 South End 05/20/91 to <05 3.1 1.7 17 190 --- <10 <5.0 #2 05/20/91 10.5 to 210 86 604 4,700 --- --- <to <5.0 <5.0 #3 East 05/20/91 11 <0.2 0.58 0.31 1.35 58 --- --- --- <10 <5.0 #3 West 05/20/91 9.5 0.2 3 1.9 15 225 - Soil Boring Samples I I I I B-t 01123/98 20 5.0 233 61.6 323 4,140 NO NO ND ND NI 25 4.09 9.66 1.77 10.3 131 30 0.58 0.68 0.08 0.40 6 MW-1 11/24/98 MW-2 11/24/98 15 0.79 1.66 0.58 7.36 135 20 183 1,280 405 2,080 28.100 a 0.27 <0.1 <0.03 <0.03 < --- 30 2.20 133 0.116 0.91 13 -- --- 35 0.006 0.02 0.007 1 0.037. -1.0 -- MW-3 11/25/98 15 0.005 0.003 <0.003 0.009 <1.0 --- --- 20 3.53 4.58 0.372 2.15 31 --- --- --- --- 30 29.60 221 84.4 439 608 a --- <0.05 <0.2 <0.05 <0.05 <0.05 --- 35 0.007 0.033 1 0.01 0.054 <1.0 --- --- --- --- --- --- MW-4 11/24/99 15 <0.003 <0.0 < < <Lu 20 0.128 0.164 0.023 0.12 3 -- --- --- --- --- 30 29.6 0.496 0.144 0.638 8 a 0.0079 <0.02 <0.005 <0M5 <0.005 --- --- 3-5 <0,003 1 <0.003 <0.003 0.004 <1.0 --- --- Explanation: TPH-g=Total petroleum hydrocarbons-as-gasoline,EPA method 8015 modified Oxygenates include: MTBE=Methyl tert-butyl ether MTBE-Methyl-tert-butyl Ether 1,2-DCA= 1,2-Dichloroethane BTEX via EPA method 8020 DIPE-Di-isopropyl Ether EDB=Dibrommetbane -- =not known or not analyzed ETBF-Ethyl-tert-butyl Ether TBA=Ten-Butanol mg/kg=milligrams per kilo gram or parts-per-million TAME-Teri-Amyl methyl Ether a=Oxygenates,1,2-DCA,and 1-2-EDB via EPA 8260 ND=Non Detect(below laboratory reporting limit) File:Project\Riverbank\Table\MC-Soilt.xls Page t of 1