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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 />(pg/L) <br />TPHd <br />(pg/L) <br />Motor <br />Oil <br />(pg/L) <br />B <br />(pg/L) <br />T <br />(pg/L) <br />E <br />(pg/L) <br />X <br />(pg/L) <br />MTBE <br />(pg/L) <br />TBA <br />(pg/L) <br />DIPE <br />(pg/L) <br />ETBE <br />(pg/L) <br />TAME <br />(pg/L) <br />Ethanol <br />(pg/L) <br />McOH <br />(pg/L) <br />1,2 - <br />DCA <br />(p9/L) <br />EDB <br />(pg/L) <br />D.O. <br />(mg/L) <br />Comments <br />AMW-86 04/10/12 <br />12.45 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br />0.70 <br />10/16/12 <br />19.28 <br />0.00 <br />-6.83 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.65 <br />10/17/12 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />- <br />04/22/13 <br />17.63 <br />0.00 <br />-5.18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.52 <br />04/23/13 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />0.51 <br />- <br />10/14/13 <br />19.08 <br />0.00 <br />-6.63 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.44 <br />10/15/13 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />0.55 <br />- <br />04/22/14 <br />18.57 <br />0.00 <br />-6.12 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br />0.53 <br />10/20/14 <br />20.00 <br />0.00 <br />-7.55 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.87 <br />10/22/14 <br />- <br />- <br />- <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br />- <br />04/27/15 <br />18.91 <br />0.00 <br />-6.46 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.97 <br />04/28/15 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br /><0.50 <br />- <br />10/19/15 <br />20.79 <br />0.00 <br />-8.34 <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br /><0.50 <br />0.40 <br />04/11/16 <br />18.65 <br />0.00 <br />-6.20 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.26 <br />04/13/16 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />0.53 <br />- <br />12/12/16 <br />20.20 <br />0.00 <br />-7.75 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.09 <br />12/13/16 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br /><0.50 <br />- <br />04/10/17 <br />14.48 <br />0.00 <br />-2.03 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br /><0.50 <br />0.95 <br />10/24/17 <br />17.03 <br />0.00 <br />-4.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.83 <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 />15.93 <br />0.00 <br />-3.48 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />5.17 <br />05/08/18 <br />- <br />- <br />- <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br /><0.500 <br />- <br />05/28/19 <br />14.77 <br />0.00 <br />-2.32 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.29 <br />05/29/19 <br />- <br />- <br />- <br />440 <br />10 <br />1.4 <br /><1.00 <br /><3.00 <br /><1.00 <br />23 <br /><1.00 <br />- <br />11/25/19 <br />INA <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Well is buried by landscape <br />04/01/20 <br />15.53 <br />0.00 <br />-3.08 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/02/20 <br />- <br />- <br />- <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br /><0.5 <br />0.29 <br />11/12/20 <br />17.37 <br />0.00 <br />-4.92 <br />800 <br />30 <br />0.99 <br /><0.5 <br /><1.5 <br />0.66 <br />58 <br />0.99 <br />0.26 <br />05/07/21 <br />INA, NS <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />11/22/21 <br />INA, NS <br />05/05/22 <br />INA, NS <br />12.45 <br />12/14/22 <br />18.30 <br />0.00 <br />-5.85 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br />7.6 <br /><0.500 <br />3.19 <br />AMW-8C 08/30/00 <br />9.01 <br />21.21 <br />0.00 <br />-12.20 <br />69 <br />16 <br />6.8 <br />2.2 <br />7.6 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />- <br />11/21/00 <br />19.19 <br />0.00 <br />-10.18 <br /><50 <br />0.69 <br /><0.50 <br /><0.50 <br /><0.50 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />- <br />02/15/01 <br />20.55 <br />0.00 <br />-11.54 <br /><50 <br />1.8 <br />1.7 <br /><50 <br />1.9 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />2.0 <br />05/17/01 <br />19.95 <br />0.00 <br />-10.94 <br /><50 <br />0.86 <br /><0.50 <br /><0.50 <br /><0.50 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />2.0 <br />08/16/01 <br />21.41 <br />0.00 <br />-12.40 <br /><50 <br />0.71 <br /><0.50 <br /><0.50 <br /><0.50 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />4.4 <br />12/06/01 <br />22.28 <br />0.00 <br />-13.27 <br />150 <br />47 <br />1.2 <br />12 <br />4.5 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.3 <br />02/14/02 <br />20.64 <br />0.00 <br />-11.63 <br /><500 <br />120 <br /><5.0 <br />18 <br /><5.0 <br />1.3 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.8 <br />Past holding time <br />06/13/02 <br />21.10 <br />0.00 <br />-12.09 <br /><50 <br />6.8 <br /><0.50 <br /><0.50 <br />0.62 <br />0.54 <br />- <br />- <br />- <br />- <br />- <br />1.8 <br />08/22/02 <br />22.13 <br />0.00 <br />-13.12 <br /><50 <br />0.56 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.62 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />3.6 <br />11/13/02 <br />23.03 <br />0.00 <br />-14.02 <br /><50 <br />0.66 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.72 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />- <br />02/12/03 <br />24.77 <br />0.00 <br />-15.76 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.78 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><40 <br /><0.50 <br />1.8 <br />05/29/03 <br />21.67 <br />0.00 <br />-12.66 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.85 <br /><20 <br /><1.0 <br /><1.0 <br /><1.0 <br /><100 <br /><0.50 <br />5.1 <br />08/04/03 <br />1 <br />22.15 <br />0.00 <br />-13.14 <br />1 <50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.79 <br /><20 <br /><1.0 <br /><1.0 <br /><1.0 <br /><100 <br /><0.50 <br />2.5 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 23 of 116 Stantec <br />