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 Cc 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-19(cont.) 12/10/04 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/25/05 --- <0.05 0.200 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 --- <0.05 0.19 --- <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 2/16/06 --- <0.015 0.236 --- <0.001 --- <0.005 0.00516 --- <0.005 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- 0.0334 <0.0005 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/16/06 --- <0.05 0.15 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.017 <0.005 --- <0.02 0.0014 --- 11/14/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/5/07 Not Sampled due to Sheen 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/3/07 Not Sampled due to Sheen 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/21/08 Not Sampled due to Sheen 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/24/08 --- <0.015 0.29 --- <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 1/23/09 --- <0.05 0.045 --- <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 7/27/09 Not Sampled due to Sheen 10/19/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/20/10 --- <0.0050 0.34 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 0.0051 --- --- --- --- <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 7/19/2010 Not sampled due to Sheen 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 MW-20 4/15/03 --- <0.05 0.026 --- <0.01 --- <0.01 0.025 --- <0.02 <0.005 --- --- --- --- 0.058 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/8/03 --- <0.05 0.039 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.0005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 8/21/03 --- <0.05 0.048 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.005 2 <0.005 --- <0.02 <0.0002 --- 11/13/03 --- <0.015 0.0199 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- 0.00804 <0.015 <0.005 <0.015 --- 0.154 <0.0005 --- 2/20/04 --- <0.05 0.087 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 6/2/04 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 9/9/04 --- <0.05 0.067 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 12/9/04 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/25/05 --- <0.05 0.067 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 --- <0.05 0.068 --- <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 2/16/06 --- <0.015 0.1 --- <0.001 --- <0.005 0.00537 --- <0.005 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- 0.144 <0.0005 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/16/06 --- <0.05 0.055 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.017 <0.005 --- <0.02 <0.0002 --- 11/16/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/7/07 --- <0.05 0.1 --- <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 7/3/07 Not Sampled-no access agreement 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 11 of 45