ARCHIVED REPORTS_THIRD QUARTER 2011 SITE STATUS, REMEDIAL SUMMARY, AND GROUNDWATER MONITORING REPORT

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Table 7 Groundwater Analytical Data-Metals South Shore Parcels-Parcel 2A and Adjacent Areas West Weber Avenue and North Lincoln Street Stockton,California Hex- avalent Sample Date Al Sb As Ba Be Ca Cd Cr Co Cu Pb K Mo Mn Na Ni Se Ag TI V Zn Hg Cr ID (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) B Zone Wells-Areas 2A/2B and Adjacent Properties(cont.) MW-53(cont.) 7/24/08 --- <0.015 0.021 --- <0.001 --- <0.001 <0.005 --- <0.005 <0.005 --- --- --- --- 0.0054 <0.015 <0.005 <0.015 --- <0.01 <0.0005 --- 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/19/09 Well abandoned due to Unocal Excavation 9 MW-56 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/23/09 --- <0.05 <0.005 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/29/09 --- <0.0050 0.0057 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/20/10 --- <0.0050 <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 0.0066 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.011 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/20/10 --- <0.0050 <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/25/11 --- <0.0050 <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/19/11 --- <0.0050 0.0062 --- <0.0050 <0.0060 jLO.0050 <0.015 --- <0.010 <0.00020 --- MW-57 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/21/09 --- <0.05 0.093 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/29/09 --- <0.0050 0.081 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/20/10 --- <0.0050 0.072 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.013 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/20/10 --- <0.0050 0.067 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.016 <0.00020 --- 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/25/11 --- <0.0050 0.067 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 mir --- <o.o05O 0.026 <0.0010 <0.005 050 <0.015 --- 0.012 <0.00020�- MW-58 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/22/09 --- <0.05 0.0058 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/30/09 --- <0.0050 0.041 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/20/10 --- <0.0050 0.047 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/20/10 --- <0.0050 0.029 --- <0.0010 --- <0.0010 <0.0050 --- 0.0053 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.025 <0.00020 --- 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/26/11 --- <0.0050 0.058 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 -- <0.0050 0.066 --- <0.0010 --- <0.0010 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- MW-59 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/23/09 --- <0.05 0.046 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/29/09 --- <0.0050 0.056 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/20/10 --- <0.0050 0.065 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 7/21/10 --- <0.0050 0.086 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 1/26/11 --- <0.0050 0.073 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <0.0050 0.028 <0.0010 ' --- <0.0010 <0.0050 <0.0050 0. <0.010 <0.00020 --- Stantec I:\Tidewater\TW Stockton(P2A)\Tables\QMR Tables\2011\3Q11\20110916-Parcel2A(Tables 4,5,6,7)Historical GW Tables 3Q11-CL.xlsx Page 39 of 45