ARCHIVED REPORTS_FOURTH QUARTER AND ANNUAL 2010 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 (mq/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/26 and Adjacent Properties(cont.) MW-57(cont.) 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 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 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 MW-60 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/21/09 --- <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 <0.0050 --- <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 1/21/10 --- <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 --- 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 C Zone Wells-Area 2A/2B And Adjacent Properties MW-54 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 --- <0.05 0.023 --- <0.01 --- <0.01 <0.02 7 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.024 <0.0002 --- 11/14/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/14/06 --- <0.015 0.065 --- <0.001 --- <0.005 0.0062 --- <0.005 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- <0.01 <0.0005 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/17/06 --- <0.05 0.014 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.017 <0.005 --- <0.02 0.00046 --- 11/16/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/9/07 --- <0.05 0.02 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.032 <0.0002 --- 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 Stantec I:\Tidewater\TW Stockton(Parcel 2A-0415)\Tables\QMR Tables\2010\4Q10\20101117-Parcel2A(Tables 4,5,6,7)Historical GW Tables 4Q10.xls Page 39 of 45