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TABLE 2 <br />Historical Groundwater Monitoring & Analytical Data <br />Stockton Charter Way Commingled Plume <br />440, 441, and 508 West Charter Way, 1426, and 1444 South Lincoln Street, Stockton, CA <br />Well No. <br />Date <br />Notes <br />TOC <br />Elevation <br />(ft -MSL) <br />Depth <br />to <br />Water <br />(feet) <br />Measured <br />SPH <br />Thickness <br />(feet) <br />Calc. <br />GW <br />Elev. <br />(ft -MSL) <br />TPHg <br />(p9/L) <br />TPHd <br />(p9/L) <br />Motor <br />Oil <br />B <br />(p9/L) <br />T <br />(p9/L) <br />E <br />(p9/L) <br />X <br />(p9/L) <br />MTBE <br />(p9/L) <br />TBA <br />(p9/L) <br />DIPE <br />(p9/L) <br />ETBE <br />(p9/L) <br />TAME <br />(p9/L) <br />Ethanol <br />(p9/L) <br />McOH <br />(p9/L) <br />1'2 <br />DCA <br />(p9/L) <br />EDB <br />(p9/L) <br />D.O. <br />(m9/L) <br />Comments <br />AMW-1B 01/29/07 <br />9.91 <br />20.70 <br />0.00 <br />-10.79 <br />160 <br />7.7 <br /><0.50 <br /><0.50 <br />1.9 <br /><0.50 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.68 <br />1.4 <br />05/07/07 <br />20.12 <br />0.00 <br />-10.21 <br />160 <br />13 <br />0.55 <br /><0.50 <br />1.9 <br /><0.50 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.54 <br />1.1 <br />08/06/07 <br />20.73 <br />0.00 <br />-10.82 <br />100 <br />7.5 <br /><0.50 <br /><0.50 <br />1.2 <br /><0.50 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.67 <br />2.6 <br />11/01/07 <br />21.38 <br />0.00 <br />-11.47 <br />110 <br />7.2 <br /><0.50 <br /><0.50 <br />1.2 <br /><0.50 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.57 <br />4.0 <br />02/04/08 <br />19.99 <br />0.00 <br />-10.08 <br />100 <br />5.4 <br /><0.50 <br />1.2 <br />2.2 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><100 <br />0.64 <br />0.7 <br />05/05/08 <br />19.49 <br />0.00 <br />-9.58 <br />110 <br />9.3 <br />0.75 <br />1.8 <br />7.7 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />3.0 <br />08/04/08 <br />20.35 <br />0.00 <br />-10.44 <br /><50 <br />2.8 <br />0.66 <br />0.65 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />- <br />10/23/08 <br />21.28 <br />0.00 <br />-11.37 <br />180 <br />9.6 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />1.0 <br />01/27/09 <br />21.27 <br />0.00 <br />-11.36 <br /><50 <br />2.6 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.69 <br />3.2 <br />04/27/09 <br />19.94 <br />0.00 <br />-10.03 <br />93 <br />4.9 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.54 <br />1.9 <br />07/22/09 <br />20.49 <br />0.00 <br />-10.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />9.9 <br />07/23/09 <br />- <br />- <br />- <br />190 <br />15 <br />0.67 <br /><0.50 <br />1.7 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />1.0 <br />- <br />02/18/10 <br />20.28 <br />0.00 <br />-10.37 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.2 <br />02/19/10 <br />- <br />- <br />- <br />230 <br />16 <br />0.93 <br />2.4 <br />2.7 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br />0.95 <br />- <br />05/24/10 <br />18.80 <br />0.00 <br />-8.89 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.6 <br />05/25/10 <br />- <br />- <br />- <br /><50 <br />0.73 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br /><0.50 - <br />Hydrocarbon odor <br />10/04/10 <br />11.63 <br />29.80 <br />0.00 <br />-18.17 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/14/10 <br />- <br />- <br />- <br />200 <br />7.1 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />5.9 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br />04/04/11 <br />17.63 <br />0.00 <br />-6.00 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.36 <br />C Zone <br />04/05/11 <br />- <br />- <br />- <br />100 <br />0.73 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />6.1 <br />- <br />C Zone <br />10/03/11 <br />18.00 <br />0.00 <br />-6.37 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.56 <br />10/04/11 <br />- <br />- <br />- <br />150 <br />2.4 <br /><0.50 <br /><0.50 <br />0.65 <br /><0.50 <br />5.2 <br />- <br />04/09/12 <br />17.94 <br />0.00 <br />-6.31 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />110 <br />1.5 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />5.7 <br />0.90 <br />10/16/12 <br />18.51 <br />0.00 <br />-6.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.60 <br />10/17/12 <br />- <br />- <br />- <br />280 <br />15 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />31 <br />- <br />04/25/13 <br />16.88 <br />0.00 <br />-5.25 <br />240 <br />4.4 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />11 <br />0.79 <br />10/14/13 <br />18.35 <br />0.00 <br />-6.72 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.87 <br />10/16/13 <br />- <br />- <br />- <br />220 <br />2.5 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />10 <br />- <br />04/22/14 <br />17.84 <br />0.00 <br />-6.21 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />2.38 <br />04/24/14 <br />- <br />- <br />- <br />210 <br />1.9 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />10 <br />- <br />10/20/14 <br />19.64 <br />0.00 <br />-8.01 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.40 <br />10/23/14 <br />- <br />- <br />- <br />180 <br />1.1 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />22 <br />- <br />04/27/15 <br />18.11 <br />0.00 <br />-6.48 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.81 <br />04/28/15 <br />- <br />- <br />- <br />150 <br />13 <br />0.71 <br /><0.50 <br /><1.0 <br /><0.50 <br />12 <br />- <br />10/19/15 <br />20.15 <br />0.00 <br />-8.52 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.26 <br />10/20/15 <br />- <br />- <br />- <br />130 <br />3.4 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br />8.6 <br />- <br />04/11/16 <br />17.89 <br />0.00 <br />-6.26 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.40 <br />04/14/16 <br />- <br />- <br />- <br />75 <br />0.72 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- <br />12/14/16 <br />19.38 <br />0.00 <br />-7.75 <br />79 <br />0.71 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />0.25 <br />04/10/17 <br />11.46 <br />13.50 <br />0.00 <br />-2.04 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br />77 <br />1.0 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br />8.6 <br />0.84 <br />10/25/17 <br />16.35 <br />0.00 <br />-4.89 <br />98 <br />2.2 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><10.0 <br />0.8 <br />05/07/18 <br />15.15 <br />0.00 <br />-3.69 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.54 <br />05/08/18 <br />- <br />- <br />- <br />152 BL <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />- <br />05/28/19 <br />1 <br />13.39 <br />0.00 <br />-1.93 <br />1 - <br />- <br />- <br />- <br />- <br />- <br />- <br />2.10 <br />stockton_charter_ way_comingles_Plume_4g22.xlsm Page 4 of 116 Stantec <br />