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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 />MW-39 (cont.) ---2/2/05 23 0.15 0.12 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/25/05 0.180 0.160 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 8/24/05 0.11 0.14 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />---11/17/05 25 0.098 0.14 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/14/06 0.065 0.11 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/15/06 <0.05 0.10 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 8/14/06 <0.05 0.11 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 11/14/06 <0.05 0.12 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/5/07 0.084 0.13 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/7/07 0.08 0.099 35 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 7/2/07 0.055 0.098 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 10/8/07 0.12 0.20 ---0.19 36 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 1/21/08 0.088 0.14 ---0.24 36 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 4/21/08 0.089 0.14 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 7/21/08 <br />--- 10/20/08 <br />---1/19/09 <br />MW-45 --- 6/3/04 <0.05 0.11 ---0.11 <0.50 <0.50 <0.50 <1.0 <br />--- 9/8/04 <0.05 <0.05 ---0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 12/7/04 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 2/24/05 <0.05 <0.05 ---0.06 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/25/05 <0.05 <0.05 --- <0.10 <0.0005 <0.0005 <0.0005 <0.0005 <br />--- 8/24/05 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 11/15/05 <0.05 <0.05 --- <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 <0.05 --- <0.05 <0.0005 <0.0005 <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 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 4/22/08 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 7/23/08 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 10/21/08 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 1/20/09 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 4/21/09 <0.05 <0.05 --- <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 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0005 <br />Well abandoned due to Unocal Excavation 51 <br />Well not sampled 45 <br />Well not sampled 45 <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 22 of 67