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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 />QA/QC Sampling <br />QCEB-1 --- 5/6/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />Equip Blank8 ---5/5/03 <0.05 <0.05 (<0.05)---<0.05 (<0.05)<0.0005 <0.0005 <0.0005 <0.001 <br />QCTB-1 --- 5/1/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.0005 <br />QCTB-2 --- 5/7/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.0005 <br />QCTB-3 --- 5/1/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.0005 <br />TRIP BLANK8 ---5/5/03 <0.05 ---------<0.0005 <0.0005 <0.0005 <0.001 <br />QCTB --- 8/15/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <br />Trip Kiff ---8/18/03 12 <0.05 ---------<0.0005 <0.0005 <0.0005 <0.001 <br />Trip C/T (1) ---8/18/03 12 <0.05 ---------<0.0005 <0.0005 <0.0005 <0.0005 <br />Trip C/T (2) ---8/18/03 12 <0.05 ---------<0.0005 <0.0005 <0.0005 <0.0005 <br />Trip C/T (3) ---8/18/03 12 <0.05 ---------<0.0005 <0.0005 <0.0005 <0.0005 <br />Blank ---8/18/03 12 <0.05 --------------------- <br />Rinse 8/18 ---8/18/03 12 <0.05 0.079 (0.11)---0.11 B (0.096 B)<0.0005 <0.0005 <0.0005 <0.001 <br />Rinse 8/19 ---8/19/03 12 <0.05 0.066 (<0.05)--- <0.05 (<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br />X-DUP ---8/19/03 12 0.19 2.00 (0.28)---0.10 B4 (<0.05 4)<0.0005 0.00051 0.0049 0.01362 <br />QCTB --- 8/19/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <br />QCDUP-3 --- 8/19/03 <0.05 0.16 ---0.083 4 <0.0005 <0.0005 <0.0005 <0.001 <br />QCDUP-1 --- 8/20/03 4.4 7.90 ---0.45 4 0.25 11 0.013 0.0038 0.0161 <br />QCDUP-2 --- 8/20/03 0.21 7.40 ---0.41 4 <0.0005 <0.0005 <0.0005 <0.001 <br />QCTB --- 8/20/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <br />QCTB --- 8/21/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <br />EB --- 8/21/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCTB-1 --- 11/5/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.005 <br />QCEB-1 --- 11/11/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.005 <br />QCEB-2 --- 11/12/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCTB-2 --- 11/7/03 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <br />QCDUP-1 --- 11/12/03 0.14 0.31 --- <0.05 0.0009 <0.0005 <0.0005 <0.001 <br />QCDUP-2 --- 11/13/03 10 9.60 ---0.320 4 0.500 0.051 0.200 0.106 <br />QCDUP-3 --- 11/13/03 16 2.30 ---0.110 4 3.700 0.061 0.200 0.087 <br />QCEB-3 --- 11/13/03 <0.05 <0.05 --- <0.10 <0.0005 <0.0005 <0.0005 <0.001 <br />QCEB-4 --- 11/14/03 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCDUP-1 --- 2/19/04 <0.05 0.69 ---0.110 4 <0.0005 <0.0005 <0.0005 <0.001 <br />QCDUP-2 --- 2/19/04 4.1 5.50 ---0.290 4 0.460 0.012 0.0025 0.0109 <br />QCDUP-3 --- 2/20/04 7.3 19.00 --0.81 16 0.48 0.047 0.14 0.0787 <br />QCEB-1 --- 2/18/04 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCEB-2 --- 2/19/04 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCEB-3 --- 2/20/04 <0.05 <0.05 --- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br />QCTB-1 --- 2/11/04 <0.05 --- --- --- <0.0005 <0.0005 <0.0005 <0.001 <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 53 of 67