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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 />(N9/L) <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 />CMW-7C 10/04/10 <br />12.08 <br />20.09 <br />0.00 <br />-8.01 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - - - - <br />- <br />10/14/10 <br />- <br />- <br />- <br />240 <80 <br /><100 <br />30 <br />22 <br />2.0 <br />10 <br />12 <br />140 <br /><0.50 <0.50 <0.50 <20 <80 <br /><0.50 <br />- <br />04/04/11 <br />17.50 <br />0.00 <br />-5.42 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - - - - <br />- <br />0.71 <br />B Zone <br />04/07/11 <br />- <br />- <br />- <br />63 <br />0.51 <br />0.85 <br /><0.50 <br />1.7 <br />1.2 <br />81 <br />- <br />B Zone <br />10/03/11 <br />18.25 <br />0.00 <br />-6.17 <br /><50 <br />1.1 <br />1.5 <br /><0.50 <br />0.74 <br />0.72 <br />14 <br />0.34 <br />04/09/12 <br />18.14 <br />0.00 <br />-6.06 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />54 <br />1.8 <br />2.3 <br /><0.50 <br />2.1 <br />1.3 <br />66 <br />0.84 <br />10/16/12 <br />18.68 <br />0.00 <br />-6.60 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.40 <br />10/18/12 <br />- <br />- <br />- <br />110 <br />2.0 <br />2.1 <br />0.52 <br />3.8 <br />1.6 <br />160 <br />- <br />04/22/13 <br />17.19 <br />0.00 <br />-5.11 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.09 <br />04/25/13 <br />- <br />- <br />- <br />120 <br />1.2 <br />1.7 <br /><0.50 <br />2.0 <br />1.5 <br />320 <br />- <br />10/14/13 <br />18.79 <br />0.00 <br />-6.71 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.67 <br />10/15/13 <br />- <br />- <br />- <br />86 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.2 <br />290 <br />- <br />04/22/14 <br />18.13 <br />0.00 <br />-6.05 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />2.43 <br />04/23/14 <br />- <br />- <br />- <br />140 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.1 <br />290 <br />- <br />10/20/14 <br />19.89 <br />0.00 <br />-7.81 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.67 <br />10/21/14 <br />- <br />- <br />- <br />110 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.1 <br />270 <br />- <br />04/27/15 <br />18.38 <br />0.00 <br />-6.30 <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br />0.34 <br />10/19/15 <br />20.49 <br />0.00 <br />-8.41 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.23 <br />10/22/15 <br />- <br />- <br />- <br />53 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br />22 <br />- <br />04/11/16 <br />18.18 <br />0.00 <br />-6.10 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.12 <br />04/14/16 <br />- <br />- <br />- <br />120 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />0.80 <br />220 <br />- <br />12/12/16 <br />19.69 <br />0.00 <br />-7.61 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.36 <br />12/13/16 <br />- <br />- <br />- <br />64 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />0.78 <br />250 <br />- <br />04/10/17 <br />12.06 <br />14.66 <br />0.00 <br />-2.60 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/12/17 <br />- <br />- <br />- <br />95 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />0.58 <br />200 <br />0.2 <br />10/24/17 <br />17.31 <br />0.00 <br />-5.25 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.47 <br />10/26/17 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><10.0 <br />- <br />05/07/18 <br />15.57 <br />0.00 <br />-3.51 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.59 <br />05/08/18 <br />- <br />- <br />- <br />153 BL <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br />1.1 <br />240 <br />- <br />05/28/19 <br />13.92 <br />0.00 <br />-1.86 <br /><100 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br />270 <br />0.64 <br />11/25/19 <br />15.95 <br />0.00 <br />-3.89 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.68 <br />12/03/19 <br />- <br />- <br />- <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br />1.0 <br />210 <br />- <br />04/01/20 NS <br />15.23 <br />0.01 <br />-3.16 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Odor <br />11/12/20 <br />17.06 <br />0.00 <br />-5.00 <br />180 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br />0.99 <br />150 <br />0.38 <br />odor <br />05/04/21 <br />16.19 <br />0.00 <br />-4.13 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.49 <br />11/24/21 <br />16.59 <br />0.00 <br />-4.53 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />45 <br />0.3 <br />05/06/22 <br />15.79 <br />0.00 <br />-3.73 <br />130 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br />0.64 <br />180 <br />2.51 <br />11/30/22 <br />18.02 <br />0.00 <br />-5.96 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br />22 <br />1.29 <br />CMW-8C 07/27/15 <br />12.03 <br />19.80 <br />0.00 <br />-7.77 <br />130 <br />2.6 <br />8.0 <br />0.64 <br />2.9 <br />2.8 <br />17 <br />6.3 <br />0.58 <br />10/19/15 <br />20.68 <br />0.00 <br />-8.65 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.48 <br />10/22/15 <br />- <br />- <br />- <br />83 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br />3.4 <br /><5.0 <br />8.3 <br />- <br />04/11/16 <br />18.88 <br />0.00 <br />-6.85 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.10 <br />04/13/16 <br />- <br />- <br />- <br />68 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />3.2 <br />7.9 <br />7.6 <br />- <br />12/12/16 <br />19.97 <br />0.00 <br />-7.94 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.26 <br />12/13/16 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />2.9 <br />11 <br />7.2 <br />- <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 42 of 116 Stantec <br />