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1 <br /> 1• <br /> ' Table 2 Groundwater Analytical Data <br /> Former Shell Central Valley Crude Oil Pipelines <br /> Mountain House Neighborhood B Parcel 209-060-08 <br /> 22261 South Mountain House Parkway Tracy, San Joaquin County, California <br /> Sample Date TPH-cr TPH-d Benzene Toluene Ethylbenzene Xylenes <br /> Location Sam led µg/L µg/L µg/L µg/L µg/I, µg/t, <br /> BB-1 5/9/2005 <500 <100 <0.30 0.92 <0.30 0.91 <br /> BB-2 5/10/2005 <500 <100 <0.30 <0.30 <0.30 <0.30 <br /> ' BB-3 5/10/2005 <500 <100 <0.30 0.74 <0.30 <0.30 <br /> BB-5 5/10/2005 <500 <100 <0.30 0.77 <0.30 0.34 <br /> BB-6 5/10/2005 <500 <100 <0.30 0.73 <0.30 <0.30 <br /> ' BB-7 5/10/2005 <500 <100 <0.30 0.93 <0.30 <0.30 <br /> BB-20 5/11/2005 <500 <100 <0.30 0.91 <0.30 <0.30 <br /> BB-21 5/11/2005 <500 <100 <0.30 0.80 <0.30 <0.30 <br /> BB-22 5/12/2005 <500 <100 <0.30 0.92 <0.30 <0.30 <br /> ' BB 40 5/13/2005 5,200 3,000 0.42 1.9 0.92 6.1 <br /> BB-41 5/13/2005 <500 <100 <0.30 4.0 0.39 1.8 <br /> BB-42 5/13/2005 <500 <100 <0.30 0.75 <0.30 <0.30 <br /> ' BB-46 5/16/2005 <500 <100 <0.30 <0.30 <0.30 <0.30 <br /> BB-47 5/16/2005 <500 <100 <0.30 0.95 0.62 4.0 <br /> BB-48 5/16/2005 <500 <100 <0.30 0.73 <0.30 <0.30 <br /> BB-49 5/17/2005 <500 250 <0.30 1.1 <0.30 <0.30 <br /> BB-56 5/17/2005 <500 310 0.35 1.0 <0.30 0.67 <br /> BB-59 5/17/2005 <500 150 0.35 1.1 <0.30 <0.30 <br /> BB-60 5/18/2005 <500 <100 <0.30 0.96 <0.30 <0.30 <br /> BB-61 J 5/18/2005 450 310 0.30 0.79 <0.30 0.40 <br /> BB-107 a 5/20/2005 <500 <100 <0.30 0.91 <0.30 1.0 <br /> BB-116 a 5/20/2005 <500 <100 <0.30 0.68 <0.30 <0.30 <br /> BB-117 a 5/20/2005 <500 <100 <0.30 0.75 <0.30 <0.30 <br /> ' BB-175 8/22/2005 <500 <50 <0.50 <0.50 <0.50 c0.50 <br /> BB-176 6/22/2005 9,100 7,100 <0.50 30 3.1 13 <br /> BB-177 8/23/2005 1,000 590 <0.50 3.2 0.53 2.8 <br /> ' BB-178A 8/24/2005 <500 250 <0.50 <0.50 <0.50 <0.50 <br /> BB-179 8/24/2005 <500 100 <0.50 0.70 <0.50 <0.50 <br /> BB-180 8/24/2005 <500 140 <0.50 <0.50 <0.50 <0.50 <br /> BB-181 8/24/2005 <500 75 <0.50 <0.50 <0.50 <0.50 <br /> ' BB-182 8/24/2005 <500 240 <0.50 0.51 <0.50 <0.50 <br /> BB-183 8/25/2005 <500 240 <0.50 <0.50 <0.50 <0.50 <br /> BB-184 L 8/25/2005 21,000 15,000 <10 <10 <10 <10 <br /> ' BB-185 8/30/2005 <500 <50 <0.50 0.73 <0.50 <1.0 <br /> BB-186 8/26/2005 <500 <50 <0.51 0.82 <0.51 <1.0 <br /> BB-187 8/26/2005 <500 <50 <0.51 0.56 <0.51 <1.0 <br /> BB-188 8/30/2005 <500 <50 <0.50 <0.50 <0.50 <1.0 <br /> BB-189 8/30/2005 820 600 <0.50 <0.50 <0.50 <1.0 <br /> BB-192 8/22/2005 <500 200 <0.50 <0.50 <0.50 <0.50 <br /> BB-193 8/22/2005 <500 80 <0.50 <0.50 <0.50 <0.50 <br /> ' BB-194 8/26/2005 <500 <50 <0.50 <0.50 <0.50 <1.0 <br /> BB-195 8/30/2005 <500 290 <0.50 <0.50 <0.50 <1.0 <br /> Notes: <br /> a = BTEX data suspect due to positive test for toluene in the trip blank <br /> J =TPH-cr concentration is estimated <br /> Page 1 of 2 <br />