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TABLE 5 ANALYTICAL REUSLTS OF GRAB GROUNDWATER SAMPLES McBillin Real Estate Investments 2154 South EI Dorado , Stockton , California W/1) 8015SW846 82608 Sample ID Date TPM-g DRO MRO MTBE TBA DIPE ETBE TAME 1 '2 EDB Benzene Toluene Ethyl- Total DCA benzene Xylenes GW-1 6/30/08 <50 <500 1 ,000 <1 <10 <2 <2 <2 <0 . 5 < 1 . 0 <0 .5 <0 . 5 <0 .5 < 1 .0 GW-2 7/1 /08 3,500 1 ,200 <500 <1 <10 <2 <2 <2 <0 . 5 < 1 . 0 35 3.4 11 8.6 GW-3 7/1 /08 <50 <500 <500 < 1 <10 <2 <2 <2 <0.5 < 1 .0 <0.5 <0.5 <0.5 < 1 . 0 GW-4 7/1 /08 29,000 1 ,900 ND < 1 < 10 <2 <2 <2 <0.5 <1 .0 1 ,000 200 280 2,360 GW-5 7/1 /08 <50 590 <500 < 1 710 <2 <2 <2 <0.5 <1 .0 <0.5 70.5 <0.5 < 1 . 0 GW-6 7/2/08 37,000 2,900 ND < 1 < 10 3.8 <2 <2 140 < 1 .0 6,500 980 1 , 100 3,060 GW-7 7/2/08 9101000 20, 000 ND < 1 < 10 <2 <2 <2 180 < 1 .0 197000 231000 11900 34,900 GW-8 7/2/08 12002000 15, 000 1 ND <1 <10 <2 <2 1 <2 44 < 1 . 0 151000 173000 2,000 181500 GW-9 7/2/08 110,000 23,000 ND <1 <10 <2 <2 <2 430 26 91100 11 ,000 11400 121400 GW-10 7/2/08 1150,000 29,000 ND <1 <10 <2 <2 72 580 <1 .010,000 14,000 1 ,400 13,000 GW-11 7/2/08 349000 2,600 ND < 1 <10 3.4 <2 <2 130 <1 .0 5,700 970 950 2,820 GW-12 6/30/08 <50 <500 <500 < 1 < 10 <2 <2 <2 40.5 <1 .0 <0.5 <0.5 <0.5 < 1 . 0 31 -W-30-35 12/10/12 56,000 < 1 < 10 < 1 < 1 2.3 9.9 <0.5 400 40 520 318 B2-W-W-35-40 12/11 /12 2103000 - < 1 < 10 < 1 <1 57 280 <0.5 150 331000 203000 351000 B3- 35-40 12/11 /12 200,000 <1 < 10 < 1 <1 41 18 <0 .5 21200 291000 312000 541000 B4-W-35-40 12/12/12 4202 000 - <1 <10 <1 I fL.J 40 94 <0 . 5 41600 11 ,000 33800 13,400 Notes - W C u � }J ETBE: Ethyl tertiary-butyl ether ,. TPH-g: Total petroleum Hydrocarbons qualified as gasoline TAME: Tertiary-amyl methyl ether MTBE: Methyl tertiary-butanol ether 1 ,2-DCA: 1 ,2-dichloroethane TBA: Tertiary butanol EDB: 1 ,2-dibromoethane DIPS: Di-ispropyl ether <: Indicates constituents were not detected at a concentration greater than the reporting limit shown Advanced GeoEnviron mental, Inc.