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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-6R --- 4/20/09 <br />--- 7/28/09 <br />--- 10/19/09 <br />--- 1/18/10 <br />--- 4/19/10 <br />--- 7/19/10 <br />MW-7 15 7/24/90 <0.02 <0.1 --- --- <0.0005 0.00073 <0.0005 0.002 <br />--- 11/17/95 <0.05 0.13 --- --- <0.005 <0.005 <0.005 <0.005 <br />--- 1/19/99 <0.05 0.45 --- --- <0.0005 (ND)* <0.0005 (ND)* <0.0005 (ND)* <0.0005 (ND)* <br />--- 2/27/99 ---0.44 --- --- --- --- --- --- <br />--- 5/20/02 <0.05 0.45 (<0.05)---0.424,5 (<0.3)<0.005 <0.005 <0.005 <0.005 <br />--- 9/30/02 <0.05 0.13 (<0.05)--- <0.1 (<0.1) <0.0005 <0.0005 <0.0005 <0.001 <br />--- 12/5/02 <0.05 0.1 (0.1)--- <0.05 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br />--- 3/5/03 <0.05 0.055 (<0.05)--- <0.05 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/5/03 <0.05 0.67 (0.053)---0.18 4 (<0.05)<0.0005 <0.0005 <0.0005 <0.001 <br />---8/19/03 12 0.066 0.35 (0.19)---0.065 B (<0.05)<0.0005 0.00062 0.0051 0.01464 <br />---11/10/03 12 <0.05 0.28 (<0.05)---0.0714 (0.054)<0.0005 <0.0005 <0.0005 <0.001 <br />---02/17/04 12 <0.05 0.44 (0.053)---0.114 (<0.05)<0.0005 <0.0005 <0.0005 <0.001 <br />---6/3/04 12 <0.05 0.61 (0.099)---0.23 16 (0.056 16)<0.0005 <0.0005 <0.0005 <0.001 <br />---9/7/04 12 <0.05 0.12 (<0.05)--- <0.1 (<0.1) <0.0005 <0.0005 <0.0005 <0.001 <br />---12/6/04 23 <0.05 0.24 --- <0.10 <0.0005 <0.0005 <0.0005 <0.001 <br />---2/2/05 23 <0.05 0.15 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/25/05 <0.05 0.17 ---0.051 16 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 8/24/05 <0.05 0.16 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 11/17/05 <0.05 0.16 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/14/06 <0.05 0.11 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/15/06 <0.05 0.11 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 8/14/06 <0.05 0.085 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 11/14/06 <0.05 0.11 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/5/07 <0.05 0.07 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/7/07 <0.05 0.094 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 7/2/07 <0.05 0.17 ---0.092 36 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 10/8/07 <0.05 0.20 ---0.064 37 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 1/21/08 <0.05 0.24 ---0.051 37 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 4/21/08 <0.05 0.28 ---0.064 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 7/21/08 <br />--- 10/20/08 <br />--- 1/19/09 <br />--- 4/20/09 <br />--- 7/28/09 <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 />--- 7/19/11 <br />--- 10/17/11 <br />--- 1/17/12 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well abandoned <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <br />Well not sampled 45 <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 4 of 67