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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 />A Zone Wells - Area 2A/2B and Adjacent Areas (cont.) <br />DPE-13 --- 2/9/07 <br />--- 5/7/07 <br />--- 7/3/07 <br />--- 10/8/07 <br />--- 1/21/08 <br />--- 4/21/08 <br />--- 7/21/08 <br />--- 10/20/08 Not sampled due to SPH <br />--- 1/19/09 <br />--- 4/20/09 <br />--- 7/27/09 <br />--- 10/19/09 <br />--- 1/18/10 <br />---4/19/10 <br />---7/19/10 <br />--- 10/18/10 <br />---1/24/11 <br />---4/18/11 <br />--- 7/18/11 <br />---10/17/11 <br />---1/17/12 <br />DP-1-U 20-24 9/01 6.0 0.57 <0.05 <0.5 0.0046 0.0028 0.017 0.0058 <br />DP-1-L 37-42 9/01 0.3 0.06 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-2-U 26-28 9/01 12 330 <0.5 <50 <0.02 <0.02 <0.02 <0.02 <br />DP-2-L 43-48 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-2-L (FD) 43-48 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-3-U 12-16 9/01 15 0.64 <0.05 <0.5 <0.004 <0.004 <0.004 <0.004 <br />DP-3-U (FD) 12-16 9/01 <0.05 0.38 <0.05 <0.5 <0.02 <0.02 <0.02 <0.02 <br />DP-3-L 41-46 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-4-U 20-24 9/01 0.11 0.50 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-4-L 42-47 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-5-U 22-24 9/01 16 48 <1.1 <11 <0.004 <0.004 <0.004 <0.004 <br />DP-5-L 43-48 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-6-U 16-20 9/01 0.29 <0.05 <0.05 <0.5 <0.002 <0.002 <0.002 <0.002 <br />DP-6-L 42-47 9/01 <0.05 0.06 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />DP-7-U 16-20 9/01 <0.05 <0.061 <0.061 <0.61 <0.001 <0.001 <0.001 <0.001 <br />DP-7-L 36-41 9/01 <0.05 <0.05 <0.05 <0.5 <0.001 <0.001 <0.001 <0.001 <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled - well inaccessible <br />Not sampled due to Sheen <br />Not sampled due to Sheen <br />Not sampled due to Sheen <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 29 of 67