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Table 4 <br />Groundwater Analytical Data - Total Petroleum Hydrocarbons and BTEX <br />South Shore Parcels - Parcel 2A and Adjacent Areas <br />West Weber Avenue and North Lincoln Street <br />Stockton, California <br />Depth Ethyl- <br />Sample (feet, Date TPHg TPHd TPHk TPHo Benzene Toluene benzene Xylenes <br />ID bgs) Sampled (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) <br />B Zone Wells - Areas 2A/2B And Adjacent Areas (cont.) <br />MW-44 --- 6/3/04 <0.05 0.21 ---0.11 4 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 9/8/04 <0.05 0.06 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 12/8/04 <0.05 0.13 --- <0.05 <0.0005 11 <0.0005 <0.0005 <0.001 <br />--- 2/24/05 <0.05 <0.05 ---0.100 4 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/25/05 <0.05 <0.05 --- <0.10 <0.0005 <0.0005 <0.0005 <0.005 <br />--- 8/24/05 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 11/15/05 <0.05 0.071 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/15/06 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/17/06 <0.05 0.11 --- <0.05 0.0017 0.0021 <0.0005 <0.001 <br />--- 8/15/06 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 11/15/06 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/6/07 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/9/07 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 7/3/07 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 10/9/07 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 1/23/08 <0.05 0.079 41 --- <0.05 <0.0005 11 <0.0005 <0.0005 <0.001 <br />--- 4/22/08 <0.05 0.052 41 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 7/23/08 <0.05 0.063 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 10/21/08 <0.05 0.086 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 1/20/09 <0.05 0.059 41 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 4/21/09 <0.05 0.099 41 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 7/28/09 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 10/20/09 <0.05 1.6 41 ---1.3 36 <0.0005 <0.0005 <0.0005 0.00057 <br />--- 1/21/10 <0.05 0.075 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 4/19/10 <0.05 0.2 41 ---0.079 36 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 7/21/10 <0.05 0.062 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 10/19/10 <0.05 <0.05 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />---1/25/11 <0.05 0.071 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />---4/19/11 <0.05 <0.05 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 7/19/11 <0.05 0.14 41 ---0.087 36 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 10/18/11 <0.05 0.31 41 ---0.13 36 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 1/18/12 <0.05 0.08 41 ---<0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />MW-46 --- 6/3/04 6.6 <1.5 9 ---0.099 4 0.760 0.055 0.074 0.156 <br />--- 9/9/04 4.8 <1.0 9 ---0.062 16 0.0052 <0.0015 <0.0015 0.123 <br />--- 12/9/04 11 <1.5 9 ---0.085 16 0.810 0.071 0.150 0.223 <br />--- 2/25/05 5.9 <1.5 9 --- <0.05 0.300 0.0092 <0.001 0.142 <br />--- 5/27/05 6.8 1.1 ---0.16 0.840 0.046 0.034 0.158 <br />--- 8/24/05 7.8 <1.5 9 --- <0.05 0.71 0.046 0.086 0.15 <br />--- 11/16/05 6.8 <1.50 9 --- <0.05 0.65 0.041 0.073 0.11 <br />--- 2/16/06 10 <4.0 9 ---0.07 16 0.55 11 0.043 26 0.120 0.13 <br />--- 5/18/06 8.0 <2.0 9 --- <0.05 0.63 0.055 0.140 0.137 <br />--- 8/17/06 11 <2.0 9 ---0.14 28 0.77 0.047 0.120 0.158 <br />--- 11/16/06 8.8 <3.0 9 ---0.078 28 0.62 0.034 0.071 0.095 <br />--- 2/8/07 9.3 <2.0 9 ---0.071 31 0.79 0.044 0.091 0.135 <br />--- 5/9/07 11 <5.0 9 ---0.22 31 0.80 0.045 0.110 0.124 <br />I:\Tidewater\TW Stockton (P2A)\Tables\QMR Tables\2012\1Q12\20120305-Parcel2A (Tables 4,5,6,7) Historical GW Tables 1Q12-CL.xlsx Page 40 of 67