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) A Zone Wells-Areas 2A/2B and Adjacent Properties(cont.) MW-20(cont.) 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/25/08 --- <0.05 0.059 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/24/08 --- <0.015 0.078 --- <0.001 --- <0.001 <0.005 --- <0.005 <0.005 --- --- --- --- <0.005 <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 1/21/09 --- <0.05 0.078 --- <0.05 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.005 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/29/09 --- <0.0050 0.11 --- <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 0.11 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 0.0061 --- --- --- --- <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 7/22/10 --- <0.0050 0.094 --- <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-21 4/15/03 --- <0.05 0.007 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.022 <0.0002 --- 5/8/03 --- <0.05 <0.025 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.025 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.02 <0.0002 --- 8/20/03 --- <0.05 0.0053 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 1 <0.005 --- <0.020 <0.0002 --- 11/13/03 --- <0.015 <0.015 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- 0.00646 <0.015 <0.005 <0.015 --- 0.0771 <0.0005 --- 2/20/04 --- <0.05 0.012 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.034 <0.0002 --- 6/1/04 Not sampled due to SPH, Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 9/7/04 --- <0.015 <0.015 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- 0.0113 <0.015 <0.005 <0.015 --- 0.290 <0.0005 --- 12/9/04 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/22/05 Well Covered During Quarterly Monitoring Event 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 --- <0.05 0.013 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 11/14/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/14/06 --- <0.015 0.0268 --- <0.001 --- <0.005 0.0099 --- <0.005 <0.01 --- --- --- --- 0.00694 <0.015 0.00953 <0.015 --- 0.011 <0.0005 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/16/06 --- <0.05 0.013 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.017 <0.005 --- <0.02 0.00023 --- 11/16/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/9/07 --- <0.05 0.01 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/5/07 --- <0.05 0.014 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/24/08 --- <0.05 0.0072 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.02 <0.0002 --- 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/24/08 --- <0.015 0.018 --- <0.001 --- <0.001 <0.005 --- <0.005 <0.005 --- --- --- --- 0.011 <0.015 <0.005 <0.015 --- 0.018 <0.0005 --- 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/21/09 --- <0.05 <0.05 --- <0.05 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.005 --- 4/20/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/29/09 --- <0.0050 0.022 --- <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 0.011 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.037 <0.00020 --- 4/19/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/20/10 --- <0.0050 0.011 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.019 <0.00020 --- 10/18/10 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 12 of 45