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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 />SLMW-1A 04/11/16 <br />11.41 <br />17.93 <br />0.00 <br />-6.52 <br />0.27 <br />04/12/16 <br />- <br />- <br />- <br />60 <br /><0.50 <br /><0.50 <br />0.58 <br />2.5 <br /><0.50 <br /><5.0 <br />- <br />12/12/16 <br />NSP <br />19.60 <br />0.00 <br />-8.19 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/17 <br />11.38 <br />13.88 <br />0.00 <br />-2.50 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/12/17 <br />- <br />- <br />- <br />54 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br />9.0 <br />0.2 <br />10/24/17 <br />NSP <br />16.11 <br />0.00 <br />-4.73 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/07/18 <br />15.00 <br />0.00 <br />-3.62 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br />0.78 <br /><10.0 <br />0.30 <br />05/28/19 <br />13.29 <br />0.00 <br />-1.91 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />4.37 <br />05/31/19 <br />- <br />- <br />- <br /><100 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br /><5.00 <br />- <br />11/25/19 <br />NSP <br />15.42 <br />0.00 <br />-4.04 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/01/20 <br />14.61 <br />0.00 <br />-3.23 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.61 <br />11/09/20 <br />NSP <br />16.46 <br />0.00 <br />-5.08 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />odor <br />05/05/21 <br />15.56 <br />0.00 <br />-4.18 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br />1.1 <br /><5 <br />1.75 <br />11/22/21 <br />NS <br />16.19 <br />0.00 <br />-4.81 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/05/22 <br />15.20 <br />0.00 <br />-3.82 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><5.00 <br />0.91 <br />11/23/22 <br />NS <br />17.49 <br />0.00 <br />-6.11 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />SLMW-2A 07/23/07 <br />11.16 <br />20.40 <br />0.00 <br />-9.24 <br />78 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />16 <br />130 <br />1.2 <br />1.2 <br /><0.50 <br />0.89 <br />- <br />0.6 <br />10/16/07 <br />21.29 <br />0.00 <br />-10.13 <br />81 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />10 <br />140 <br />1.5 <br />1.2 <br /><0.50 <br />0.89 <br /><0.50 <br />- <br />01/15/08 <br />20.68 <br />0.00 <br />-9.52 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />7.3 <br />150 <br />1.1 <br />1.2 <br /><0.50 <br />0.91 <br /><0.50 <br />04/14/08 <br />19.37 <br />0.00 <br />-8.21 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />5.3 <br />160 <br />1.2 <br />1.3 <br /><0.50 <br />0.75 <br /><0.50 <br />07/15/08 <br />19.96 <br />0.00 <br />-8.80 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />3.9 <br />150 <br />0.84 <br />0.76 <br /><0.50 <br />0.62 <br /><0.50 <br />10/28/08 <br />21.33 <br />0.00 <br />-10.17 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />3.4 <br />100 <br />1.1 <br />0.83 <br /><0.50 <br />0.60 <br /><0.50 <br />3.3 <br />01/27/09 <br />21.20 <br />0.00 <br />-10.04 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />2.6 <br />99 <br />0.84 <br />0.76 <br /><0.50 <br />0.53 <br /><0.50 <br />1.1 <br />04/27/09 <br />19.89 <br />0.00 <br />-8.73 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.3 <br />110 <br /><0.50 <br />1.0 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.2 <br />07/22/09 <br />20.39 <br />0.00 <br />-9.23 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />2.1 <br />92 <br /><0.50 <br />0.62 <br /><0.50 <br />0.50 <br /><0.50 <br />0.7 <br />10/14/09 <br />21.11 <br />0.00 <br />-9.95 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.6 <br />87 <br />0.59 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />2.7 <br />01/12/10 <br />21.01 <br />0.00 <br />-9.85 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />2.0 <br />65 <br />0.64 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.9 <br />05/24/10 <br />19.20 <br />0.00 <br />-8.04 <br /><50 <br /><0.50 <br /><1.0 <br /><1.0 <br /><1.0 <br />1.4 <br />64 <br /><2.0 <br /><2.0 <br /><2.0 <br /><0.50 <br /><1.0 <br />- <br />10/04/10 <br />11.41 <br />21.09 <br />0.00 <br />-9.68 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.8 <br />10/12/10 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.3 <br />61 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />- <br />04/04/11 <br />17.17 <br />0.00 <br />-5.76 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.80 <br />B Zone <br />04/05/11 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.82 <br />94 <br />- <br />B Zone <br />10/03/11 <br />NSP <br />17.79 <br />0.00 <br />-6.38 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/09/12 <br />19.90 <br />0.00 <br />-8.49 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.88 <br />150 <br />1.25 <br />10/16/12 <br />18.18 <br />0.00 <br />-6.77 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.76 <br />10/17/12 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.84 <br />100 <br />- <br />04/22/13 <br />16.79 <br />0.00 <br />-5.38 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.10 <br />04/23/13 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.72 <br />210 <br />- <br />10/14/13 <br />NSP <br />18.31 <br />0.00 <br />-6.90 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/22/14 <br />17.85 <br />0.00 <br />-6.44 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />8.4 <br />0.49 <br />10/20/14 <br />NSP <br />19.92 <br />0.00 <br />-8.51 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/27/15 <br />17.90 <br />0.00 <br />-6.49 <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br />0.36 <br />10/19/15 <br />NSP <br />20.05 <br />0.00 <br />-8.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/16 <br />18.54 <br />0.00 <br />-7.13 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.03 <br />04/12/16 <br />- <br />- <br />- <br /><50.0 <br />- - <0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />0.63 <br />89 <br />- <br />- <br />- - - <br />- <br />- <br />- <br />12/12/16 <br />NSP <br />1 <br />17.70 <br />0.00 <br />-6.29 <br />1 - <br />- <br />- <br />- <br />- <br />- <br />- <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 47 of 116 Stantec <br />