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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 />2AMW-14 ---1/24/11 <br />(cont.)---4/18/11 <br />---7/18/11 <br />--- 10/17/11 <br />--- 1/17/12 <br />2AMW-15 --- 10/14/99 0.068 0.09 --- <0.50 <0.0005 0.0017 0.00054 0.0027 <br />--- 5/20/02 <0.05 0.19 (<0.05)--- <0.3 (<0.3) <0.005 <0.005 <0.005 <0.005 <br />--- 9/30/02 <0.05 0.076 (<0.05)--- <0.1 (<0.1) <0.0005 <0.0005 <0.0005 <0.001 <br />--- 12/5/02 <0.05 0.11 (0.072)--- <0.05 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br />--- 3/5/03 0.57 0.07 (0.072)--- <0.05 (<0.05) <0.0005 0.012 0.066 0.191 <br />--- 5/8/03 <0.05 0.47 (<0.05)---0.054 4 (<0.05)<0.0005 <0.0005 <0.0005 <0.001 <br />---8/19/03 12 0.069 0.22 (<0.05)---0.055 B (<0.05)<0.0005 <0.0005 0.0025 0.0067 <br />---11/11/03 12 <0.05 0.35 (<0.05)--- <0.05 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br />---02/17/04 12 <0.05 0.38 (0.085)---0.058 (<0.05)<0.0005 <0.0005 <0.0005 <0.001 <br />---6/2/04 12 <0.05 0.46 (<0.05)---0.17 16 (<0.05 16)<0.0005 <0.0005 <0.0005 <0.001 <br />---9/7/04 12 <br />---12/6/04 23 <0.05 0.17 --- <0.10 <0.0005 <0.0005 0.0027 <0.001 <br />---2/2/05 23 <0.05 0.16 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 5/25/05 <0.05 0.17 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />--- 8/24/05 <0.05 0.19 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 11/17/05 <0.05 0.20 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/14/06 <0.05 0.14 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/15/06 <0.005 0.17 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 8/14/06 <0.05 0.13 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 11/14/06 <0.05 0.15 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 2/5/07 <0.05 0.22 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 5/7/07 <0.05 0.14 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 7/2/07 <0.05 0.15 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 10/8/07 <0.05 0.19 ---0.099 36 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 1/21/08 <0.05 0.16 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br />--- 4/21/08 <0.05 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 />--- 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 />--- 7/19/11 <br />--- 10/17/11 <br />--- 1/17/12 Well not sampled 45 <br />Not sampled due to Sheen <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 />Not sampled due to Sheen <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 />Not Sampled Due to Transfer of Environmental Consultant Management Responsibilities <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 10 of 67