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Table 5 <br /> Historical Groundwater Analytical Data-Metals <br /> South Shore Parcels-Parcel 2A and Adjacent Areas <br /> West Weber Avenue and North Lincoln Street <br /> Stockton,California <br /> Hex- <br /> avalent <br /> Sample Date Al Sb Ba Be Ca Cd Cr Co Cu Pb K Mo Mn Na Ni Se Ag TI V Zn Hg Cr <br /> ID (mg/1) (mg/1) (mg/1) (mg/1) (m /I (mg/1) (m /I (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) <br /> B Zone Wells-Areas 2A/2B and Adjacent Properties(cont.) <br /> MW-53(cont.) 5/7/07 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/5/07 --- <0.05 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- <br /> 10/8/07 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/25/08 --- <0.05 --- <0.01 --- <0.01 <0.02 --- <0.02 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.005 --- <0.02 <0.0002 --- <br /> 4/21/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/24/08 --- <0.015 --- <0.001 --- <0.001 <0.005 --- <0.005 <0.005 --- --- --- --- 0.0054 <0.015 <0.005 <0.015 --- <0.01 <0.0005 --- <br /> 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/19/09 Well abandoned due to Unocal Excavation s <br /> MW-56 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/23/09 --- <0.05 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- <br /> 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/29/09 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 0.0066 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.011 <0.00020 --- <br /> 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/25/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/19/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/17/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/19/12 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 4/16/12 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> MW-57 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/21/09 --- <0.05 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- <br /> 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/29/09 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.013 <0.00020 --- <br /> 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.016 <0.00020 --- <br /> 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/25/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- <br /> 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/19/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- <br /> 10/17/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/18/12 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.012 <0.00020 --- <br /> 4/16/12 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> MW-58 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/22/09 --- <0.05 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- <br /> 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/30/09 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/19/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 4/19/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/20/10 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- 0.0053 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- 0.025 <0.00020 --- <br /> 10/18/10 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/26/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 4/18/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 7/20/11 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 10/17/11 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/18/12 --- <0.0050 --- <0.0010 --- <0.0010 <0.0050 --- <0.0050 <0.0050 --- --- --- --- <0.0050 <0.0060 <0.0050 <0.015 --- <0.010 <0.00020 --- <br /> 4/16/12 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> MW-59 10/20/08 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> 1/23/09 --- <0.05 --- <0.005 --- <0.01 <0.01 --- <0.01 <0.005 --- --- --- --- <0.02 <0.005 <0.01 <0.001 --- <0.02 <0.0002 --- <br /> 4/20/09 Dissolved Metals analysis required semi-annually per MRP No.R5-2004-0820 <br /> Stantec <br /> 20120924-Parcel2A(Tables 4,5,6,7)Historical GW Tables 3012-CL.xlsx Page 39 of 46 <br />