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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/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) <br /> B Zone Wells-Areas 2A/2B And Adjacent Areas(cont.) <br /> MW-16(cont.) --- 5/18/06 0.26 0.82 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 8/16/06 <0.05 0.15 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 11/16/06 0.05 0.16 --- <0.05 <0.0005 <0.0005 <0.0005 <0.00110 <br /> --- 2/8/07 0.32 1.10 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 5/8/07 0.3 1.3 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 7/3/07 0.066 0.41 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 10/10/07 0.47 1.0 --- <0.05 0.016 0.036 0.0057 0.0276 <br /> --- 1/23/08 0.28 0.93 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 4/23/08 0.28 0.90 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 7/24/08 0.30 0.82 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 10/23/08 0.20 0.61 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 1/21/09 0.087 0.36 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 4/22/09 0.072 0.38 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 7/30/09 0.19 0.86 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br /> --- 10/22/09 <0.05 0.22 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br /> --- 1/22/10 0.22 1.0 --- <0.05 <0.0005 26 <0.0005 <0.0005 <0.0005 <br /> --- 4/22/10 0.23 0.84 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br /> --- 7/22/10 <0.05 0.40 --- 0.06137 <0.0005 <0.0005 <0.0005 <0.0005 <br /> --- 10/21/10 <0.05 0.28 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br /> MW-17 --- 4/15/03 8.1 13 --- 0.66° 0.4 0.03 0.19 0.0516 <br /> --- 5/8/03 8.4 12 --- 0.41° 0.49 0.048 0.26 0.113 <br /> --- 8/21/03 9.3 9.9 --- 0.22° 0.56 0.053 0.25 0.137 <br /> --- 11/13/03 8.9 19 --- 0.84° 0.61 0.056 0.18 0.091 <br /> --- 2/20/04 7.3 25 --- 1.216 0.48 0.049 0.15 0.0783 <br /> --- 6/3/04 18 20 --- 1.04 0.52 0.054 0.19 0.124 <br /> --- 9/9/04 9.1 15 --- 0.52° 0.7 0.058 0.17 0.108 <br /> --- 12/10/04 6.4 16 --- 0.33° 0.64 0.045 0.15 0.094 <br /> --- 2/25/05 9.3 10 --- 0.27° 0.78 0.048 0.17 0.097 <br /> --- 5/26/05 6.4 5.4 --- 0.220 24 0.45 0.017 0.039 0.0322 <br /> --- 8/24/05 6.6 16 --- 0.70 16,24 0.60 0.026 0.097 0.051 <br /> --- 11/14/05 Not sampled due to Sheen <br /> --- 2/16/06 5.0 11 --- 0.25 0.38 11 0.08926 0.058 0.078 <br /> --- 5/15/06 Not sampled due to Sheen <br /> --- 8/17/06 5.0 8.3 --- 0.35 28 0.24 0.013 0.046 0.0176 <br /> --- 11/14/06 Not sampled due to Sheen <br /> --- 2/9/07 5.3 19 --- 0.29 32 0.23 0.014 0.016 0.0179 <br /> --- 5/9/07 4.6 12 --- 0.54 28 0.19 0.011 0.01 0.0143 <br /> --- 7/5/07 4.9 38 --- 2.3 36 0.37 0.016 0.026 0.0178 <br /> Stantec <br /> I:\Tidewater\TW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2010\4Q10\20101117-Parcel2A(Tables 4,5,6,7)Historical GW Tables 4Q10.xls Page 34 of 67 <br />