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Table 5 Historical Groundwater Analytical Data South Shore Parcels-Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton,California Depth Ethyl- Sample (feet, Date TPHg TPHd TPHo Benzene Toluene benzene Xylenes MTBE TBA As ID b s) Sampled (mg/L (mg/L (mg/L (mg/L (mg/L (mg/L (mg/L (mg/L (mg/L m /L A Zone Wells-Area 2A/2B and Adjacent Areas(cont.) MW-8(cont.) --- 8/18/03 12 <0.05 .060(<0.05) <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 0.0079 --- 0.022 --- 11/11/0312 <0.05 0.061(<0.05) <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 0.0017 --- 0.022 --- 02/18/04 12 <0.05 0.17(<0.05) 0.054 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 0.011 --- 0.024 --- 6/2/04 12 <0.05 0.19(<0.05) 0.06616(<0.05 ifi) <0.0005 0.00068 0.0028 0.0071 0.014 --- --- --- 9/7/04 12 <0.05 <0.05(<0.05) <0.1(<0.1) <0.0005 <0.0005 <0.0005 <0.001 0.015 --- <0.05 --- 12/6/0421 <0.05 <0.05 <0.10 <0.0005 <0.0005 <0.0005 <0.001 0.015 <0.005 --- --- 2/2/0521 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.012 <0.005 0.026 --- 5/25/05 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.0084 <0.005 --- --- 8/24/2005 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.006 <0.005 0.027 --- 11/17/2005 <0.05 0.07 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.0093 <0.005 --- --- 2/14/06 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.0066 <0.005 0.027 --- 5/15/06 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.004 <0.005 --- --- 8/14/06 <0.05 0.10 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.0084 <0.005 0.027 --- 11/14/06 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.0087 <0.005 --- --- 2/5/07 <0.05 0.06 0.068 <0.0005 <0.0005 <0.0005 <0.0015 0.004 <0.005 <0.01 --- 5/7/07 <0.05 0.08 0.12 24 <0.0005 <0.0005 <0.0005 <0.0015 0.0044 <0.005 --- --- 7/2/07 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.004 <0.005 0.032 --- 10/8/07 <0.05 0.066 41 0.06636 <0.0005 <0.0005 <0.0005 <0.0015 0.0034 <0.005 --- --- 1/21/08 <0.05 0.07341 0.1136 <0.0005 <0.0005 <0.0005 <0.0015 0.0033 <0.005 0.0442 --- 4/21/08 <0.05 0.065 41 <0.05 <0.0005 <0.0005 <0.0005 <0.0015 0.0034 <0.005 --- --- 7/21/08 Well not sampled 45 --- 10/20/08 Well not sampled 45 --- 1/19/09 Well abandoned due to Unocal Excavation 51 MW-9 --- 10/18/96 4.6 2.30 <0.20 1.1 0.016 0.16 0.11 --- --- 0.11 (FD) --- 10/18/96A 4.1 2.50 <0.20 0.94 0.013 0.15 0.13 0.13 --- 0.11 --- 1/19/99 5.77 --- --- 1.42(1.33)* 0.0266(ND)* 0.0254(ND)* 0.0264(ND)* <0.05 <1.0 --- --- 2/27/99 --- 6.41 --- --- --- --- --- -- --- --- 9/2/99 5.53 6.29 --- 3.16 0.06 0.0776 0.0976 --- --- --- --- 5/20/02 4.44 14(1.8) 1.745(<0.3) 0.92 <0.036 <0.036 <0.036 <0.036 --- 0.26 --- 9/30/02 3.9 7.6(3.4) <0.1(<0.1) 0.74 0.034 0.0095 0.032 0.012 0.084 0.25 --- 12/5/02 3.7 5.9(1.6) <0.1(<0.1) 0.56 0.0089 0.0068 0.0069 0.0096 0.082 0.277 --- 3/5/03 3.4 4.4 0.144 0.57 0.0083 0.0051 0.0012 0.0099 0.086 0.289 --- 5/7/03 5 9.1 0.44 0.94 0.011 0.0043 0.0102 0.0120 0.070 0.190 --- 8/20/03 4.4 6.8 0.384 0.23 0.011 0.0031 0.0152 0.010 0.071 0.130 --- 11/13/03 4.0 9.1 0.804 0.44 0.017 0.0034 0.0151 0.011 0.079 0.128 --- 2/19/04 4.5 4.6 0.244 0.41 0.011 0.0037 0.0113 0.010 0.077 0.180 --- 6/3/04 4.5 9.4 0.594 0.5 0.01 <0.0015 0.0142 0.0087 0.068 --- --- 9/9/04 3.9 6.4 0.234 0.54 0.01 0.0022 0.0172 0.011 11 0.078 0.200 --- 12/10/04 3.7 6.4 0.214 0.5811 0.015 0.0059 0.0154 0.0078 0.070 --- --- 2/25/05 2.5 1.9 0.214 0.18 0.004 0.0015 0.0049 0.0042 0.080 0.061 --- 5/26/05 4.0 4.4 0.09124 0.22 0.0064 0.0034 0.0085 0.0023 0.070 --- --- 8/24/05 3.5 4.6 0.1324 0.19 0.0052 0.0035 0.0075 0.0025 0.062 0.12 --- 11/16/05 2.6 2.1 <0.05 0.16 0.0048 0.0023 0.0071 0.0024 0.059 --- --- 2/14/06 3.6 2.4 <0.05 0.12 0.0047 0.0024 0.0084 0.0016 0.054 0.219 --- 5/17/06 3.5 4.5 0.07816 0.19 0.0073 0.0076 0.0100 0.0039 0.073 --- --- 8/16/06 4.0 2.5 0.05428 0.24 0.0077 0.0037 0.0095 --- --- 0.15 --- 11/16/06 3.6 2.5 <0.05 0.16 0.0052 0.0022 0.0076 0.0035 0.085 --- --- 2/8/07 3.5 6.4 <0.05 0.16 0.0052 0.0032 0.0081 0.0034 0.094 0.27 --- 5/9/07 2.9 6.0 0.1921 0.15 0.0044 0.0026 0.0068 0.0036 0.095 --- --- 7/5/07 2.7 5.8 0.1637 0.13 0.0043 0.0028 0.0073 0.0036 0.1 0.24 --- 10/9/07 2.7 6.7 0.2321 0.12 0.0039 0.0022 0.0063 0.0036 0.089 --- --- 1/24/08 2.5 2.6 0.0637 0.06811 0.0038 0.0031 0.0072 0.003611 0.11 0.24 --- 4/23/08 2.0 3.8 0.29 0.089 0.0029 0.0024 0.0055 0.0034 0.095 --- 7/24/08 1 2.6 3.3 0.12 0.071 0.0037 0.0018 0.0068 0.0040 0.10 0.26 Page 5 of 60