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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 B Zone Wells-Areas 2A/2B And Adjacent Areas(cont.) MW-44(cont.) --- 4/22/08 <0.05 0.052 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.00068 <0.005 --- --- 7/23/08 <0.05 0.063 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.00091 <0.005 <0.015 --- 10/21/08 <0.05 0.086 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.00079 <0.005 --- --- 1/20/09 <0.05 0.05941 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.00093 <0.005 0.013 --- 4/21/09 <0.05 0.099 41 <0.05 <0.0005 <0.0005 <0.0005 <0.001 0.00093 <0.005 --- --- 7/28/09 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.00079 <0.005 0.014 --- 10/20/09 <0.05 1.641 1.3 36 <0.0005 <0.0005 <0.0005 0.00057 0.00087 <0.005 --- --- 1/21/10 <0.05 0.075 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.0011 <0.005 0.020 --- 4/19/10 <0.05 0.241 0.07936 <0.0005 <0.0005 <0.0005 <0.0005 0.0006 <0.005 --- --- 7/21/10 <0.05 0.062 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.00098 <0.005 0.014 --- 10/19/10 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.001211 <0.005 --- --- 1/25/11 <0.05 0.071 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.00052 <0.005 0.011 --- 4/19/11 <0.05 <0.05 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.00069 <0.005 --- --- 7/19/11 <0.05 0.1441 0.08736 <0.0005 <0.0005 <0.0005 <0.0005 0.00073 <0.005 0.012 --- 10/18/11 <0.05 0.3141 0.1336 <0.0005 <0.0005 <0.0005 <0.0005 0.00099 <0.005 --- --- 1/18/12 <0.05 0.08d1 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.0013 <0.005 0.014 --- 4/17/12 <0.05 0.1111 0.06536 <0.0005 <0.0005 <0.0005 <0.0005 0.0011 <0.005 --- --- 7/17/12 <0.05 0.1541 0.10 36 <0.0005 <0.0005 <0.0005 <0.0005 0.00090 <0.005 --- --- 10/15/12 Not sampled per MRP No.R5-2012-0805 --- 2/12/13 Not sampled per MRP No.R5-2012-0805 --- 4/15/13 Not sampled per MRP No.R5-2012-0805 --- 7/16/13 <0.05 0.05841 <0.05 <0.0005 <0.0005 <0.0005 <0.0005 0.00076 <0.005 --- MW-46 --- 6/3/04 6.6 <1.5 s 0.0994 0.760 0.055 0.074 0.156 <0.0015 0.050 0.015 --- 9/9/04 4.8 <1.0 s 0.062 16 0.0052 <0.0015 <0.0015 0.123 <0.0015 <0.020 0.014 --- 12/9/04 11 <1.5 s 0.08516 0.810 0.071 0.150 0.223 <0.0015 0.054 --- --- 2/25/05 5.9 <1.5 e <0.05 0.300 0.0092 <0.001 0.142 <0.001 0.012 0.013 --- 5/27/05 6.8 1.1 0.16 0.840 0.046 0.034 0.158 <0.0011 0.057 --- --- 8/24/05 7.8 <1.5 s <0.05 0.71 0.046 0.086 0.15 <0.001 0.048 0.0140 --- 11/16/05 6.8 <1.509 <0.05 0.65 0.041 0.073 0.11 <0.001 0.027 --- --- 2/16/06 10 <4.0 s 0.0716 0.55 11 0.04326 0.120 0.13 <0.002 0.039 0.0184 --- 5/18/06 8.0 <2.0 s <0.05 0.63 0.055 0.140 0.137 <0.0005 0.041 --- --- 8/17/06 11 <2.0 s 0.1421 0.77 0.047 0.120 0.158 <0.0015 0.042 0.013 --- 11/16/06 8.8 <3.0 s 0.07821 0.62 0.034 0.071 0.095 <0.0015 0.042 --- --- 2/8/07 9.3 <2.0 s 0.071 31 0.79 0.044 0.091 0.135 <0.002 0.028 0.014 --- 5/9/07 11 <5.0 s 0.2231 0.80 0.045 0.110 0.124 <0.002 0.049 --- --- 7/5/07 8.1 <3.0 s 0.1 37 0.67 0.038 0.056 0.096 <0.0015 0.052 0.013 --- 10/9/073940 20 <80' 1136 0.73 0.052 0.330 0.245 <0.004 0.054 --- --- 1/21/08 Not Sampled due to Sheen --- 4/21/08 Not Sampled due to Sheen --- 7/21/08 Not Sampled due to Sheen --- 10/20/08 Not Sampled due to Sheen --- 1/19/09 Not Sampled due to Sheen --- 4/20/09 Not Sampled due to Sheen --- 7/27/09 Not Sampled due to Sheen --- 10/19/09 Not Sampled due to Sheen --- 1/18/10 Not Sampled due to Sheen --- 4/19/10 Not Sampled due to Sheen --- 7/19/10 Not Sampled due to Sheen --- 10/18/10 Not Sampled due to Sheen --- 1/24/11 Not Sampled due to Sheen --- 4/18/11 Not Sampled due to Sheen --- 7/18/11 Not Sampled due to Sheen --- 10/17/11 Not Sampled due to Sheen 1/17/12 Not Sampled due to Sheen Page 34 of 60