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.) 2AMW-13(cont.) 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 7/21/08 Not sampled due to Sheen 10/20/08 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 1/19/09 Not sampled due to Sheen 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 1/18/10 Not sampled due to Sheen 4/19/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/19/10 Not sampled due to Sheen 10/18/10 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2AMW-15 5/20/02 --- <0.06 0.0095 <0.002 --- --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 9/30/02 --- <0.05 <0.005 <0.005 --- --- <0.01 <0.01 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.01 --- 0.058 <0.0002 --- 12/5/02 --- <0.06 0.012 --- <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 0.014 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.0061 <0.005 <0.005 --- <0.02 <0.0002 --- 5/5/03 --- <0.06 0.0093 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.015 <0.005 <0.005 --- <0.02 <0.0002 --- 8/19/03 3 --- <0.06 0.011 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 11/11/033 --- <0.06 <0.005 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 <0.005 <0.005 <0.005 --- <0.02 <0.0002 --- 2/17/04 3 --- <0.06 0.0061 --- <0.002 --- <0.005 <0.01 --- <0.01 <0.003 --- --- --- --- <0.02 0.006 <0.005 <0.005 --- <0.02 <0.0002 --- 6/2/04 3 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 9/7/04 3 Not Sampled Due to Transfer of Environmental Consultant Management Responsibilities 12/6/04 s Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 2/2/05 3 --- <0.05 0.012 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 7 <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 0.0092 --- <0.01 --- <0.01 <0.02 7 --- <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 --- <0.05 0.014 --- <0.01 --- <0.01 <0.01 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- 5/17/06 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 8/14/06 --- <0.05 0.0088 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <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 <0.01 --- --- --- --- <0.005 <0.015 <0.005 <0.015 --- 0.0214 <0.0005 --- 5/7/07 Dissolved Metals analysis required semi-annually per MRP No. R5-2004-0820 7/2/07 --- <0.05 0.0087 --- <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 1/21/08 --- <0.015 0.0102 --- <0.001 --- <0.005 <0.005 --- <0.005 <0.01 --- --- --- --- --- --- --- --- --- --- --- --- 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 e 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 9 of 45