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-7 1/19/99 --- --- --- --- --- 188 --- --- --- --- --- 28.8 --- 1.34 147 --- --- --- --- --- --- --- --- 5/20/02 --- <0.06 0.017 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- 0.045 <0.0002 --- 9/30/02 --- <0.06 0.057 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- 0.047 <0.0002 --- 12/5/02 --- <0.06 0.023 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- 0.072 <0.0002 --- 3/5/03 --- <0.06 0.020 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.017 <0.005 <0.005 --- 0.044 <0.0002 --- 5/5/03 --- <0.06 0.016 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.022 <0.005 <0.005 --- 0.049 <0.0002 --- 8/19/03 3 --- <0.06 0.0091 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.0099 <0.005 <0.005 --- 0.051 <0.0002 --- 11/10/03 3 --- <0.06 0.0092 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- 0.052 <0.0002 --- 2/17/04 3 --- <0.06 0.031 --- <0.002 --- <0.005 <0.01 --- <0.01 0.0035 --- --- --- --- <0.02 0.014 <0.005 <0.005 --- <0.02 <0.0002 --- 6/3/04 9 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 9/7/04 3 --- <0.10 <0.05 --- <0.01 --- <0.01 <0.01 --- <0.01 <0.05 --- --- --- --- <0.01 <0.10 <0.001 5 <0.10 --- 0.064 <0.0002 --- 12/6/04 6 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/2/05 6 --- <0.05 0.016 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 7 <0.005 --- 0.110 0.00020 --- 5/25/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/24/05 --- <0.05 0.007 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 7 <0.005 --- 0.240 <0.0002 --- 11/14/05 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/14/06 --- <0.05 0.006 --- <0.01 --- <0.01 <0.01 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.18 <0.0002 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/14/06 --- <0.05 0.014 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.064 <0.0002 --- 11/14/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/5/07 --- <0.015 <0.01 --- <0.001 --- <0.005 <0.005 --- <0.005 0.0108 --- --- --- --- 0.00647 <0.015 <0.005 0.0165 --- 0.153 <0.0005 --- 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/2/07 --- <0.05 <0.005 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- 0.32 <0.0002 --- 10/8/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/21/08 --- <0.015 <0.01 --- <0.001 --- <0.005 <0.005 --- <0.005 --- --- --- --- --- --- --- --- --- --- --- --- --- 4/21/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/21/08 Well not sampled 8 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8 1/19/09 Well not sampled 8 4/20/09 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8 7/27/09 Well not sampled 8 10/19/09 Well not sampled 8 1/18/10 Well not sampled 8 4/19/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8 7/19/10 Well not sampled 8 10/18/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8 MW-8 10/18/96 --- <0.02 0.028 --- <0.002 --- <0.005 0.04 --- 0.03 <0.04 --- --- --- --- 0.04 <0.004 <0.005 <0.05 --- 0.06 <0.0002 --- 5/20/02 --- <0.06 0.022 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.0098 <0.005 <0.005 --- 0.21 <0.0002 --- 9/30/02 --- <0.06 0.044 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 12/5/02 --- <0.06 0.021 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 3/5/03 --- <0.06 0.023 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.016 <0.005 <0.005 --- <0.02 <0.0002 --- 5/5/03 --- <0.06 0.024 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.018 <0.005 <0.005 --- <0.02 <0.0002 --- 8/18/03 3 --- <0.06 0.022 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.013 <0.005 <0.005 --- <0.02 <0.0002 --- 11/11/033 --- <0.06 0.022 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.011 <0.005 <0.005 --- <0.02 <0.0002 --- 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 4 of 45