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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 />(lig/ <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 />DCA <br />EDB <br />('J' /L) <br />D.O. <br />(m9/L) <br />Comments <br />SMW-21-80 07/22/09 <br />9.12 <br />20.75 <br />0.00 <br />-11.63 <br />2,800 <br />- <br />550 <br />21 <br />4.7 <br />43 <br /><0.90 <br />29 <br />1.3 <br /><0.90 <br /><0.90 <br />- <br /><0.90 <br /><0.90 <br />22.5 <br />10/14/09 <br />21.85 <br />0.00 <br />-12.73 <br />3,700 <br />170 N <br />490 <br />17 <br /><5.0 <br />26 <br /><5.0 <br /><50 <br /><10 <br /><10 <br /><10 <br /><500 <br /><2.5 <br /><5.0 <br />- <br />10/14/09 <br />21.60 <br />0.00 <br />-12.48 <br />2,100 <br />- <br />410 <br />15 <br />3.2 <br />31 <br /><0.90 <br />25 <br />1.1 <br /><0.90 <br /><0.90 <br />- <br /><0.90 <br /><0.90 <br />10/14/09 <br />- <br />- <br />- <br />2,200 <br />400 <br />15 <br />3.2 <br />30 <br /><1.0 <br />24 <br />1.1 <br /><1.0 <br /><1.0 <br /><1.0 <br /><1.0 <br />01/12/10 <br />21.50 <br />0.00 <br />-12.38 <br />2,800 <br />400 <br />16 <br />3.1 <br />32 <br /><0.90 <br />22 <br /><0.90 <br /><0.90 <br /><0.90 <br /><0.90 <br /><0.90 <br />5.1 <br />05/24/10 <br />19.26 <br />0.00 <br />-10.14 <br />3,500 <br />270 N <br />360 <br />12 <br /><5.0 <br />14 <br /><5.0 <br /><50 <br /><10 <br /><10 <br /><10 <br /><500 <br /><2.5 <br /><5.0 <br />- <br />10/04/10 <br />11.50 <br />20.15 <br />0.00 <br />-8.65 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/15/10 <br />- <br />- <br />- <br />1,800 <br /><200 <br />290 <br />11 <br />1.5 <br />24 <br /><0.50 <br />30 <br />0.82 <br /><0.50 <br /><0.50 <br /><20 <br /><0.50 <br />04/04/11 <br />17.40 <br />0.00 <br />-5.90 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.27 <br />C Zone <br />04/05/11 <br />- <br />- <br />- <br />1,700 <br />350 <br />12 <br />2.0 <br />23 <br /><0.90 <br />20 <br />- <br />C Zone <br />10/03/11 <br />17.80 <br />0.00 <br />-6.30 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.84 <br />10/04/11 <br />- <br />- <br />- <br />1,500 <br />320 <br />9.4 <br />2.1 <br />27 <br /><0.80 <br />22 <br />- <br />04/09/12 <br />18.25 <br />0.00 <br />-6.75 <br />1,300 <br />260 <br />6.3 <br />1.8 <br />24 <br /><0.50 <br />24 <br />1.25 <br />10/16/12 <br />18.60 <br />0.00 <br />-7.10 <br />1,200 <br />100 <br />2.3 <br />0.72 <br />14 <br /><0.50 <br />20 <br />0.67 <br />04/22/13 <br />17.07 <br />0.00 <br />-5.57 <br />870 <br />73 <br />1.8 <br /><0.50 <br />12 <br /><0.50 <br />19 <br />0.50 <br />10/14/13 <br />18.62 <br />0.00 <br />-7.12 <br />750 <br />12 <br />1.4 <br /><0.50 <br />10 <br /><0.50 <br />17 <br />0.72 <br />04/22/14 <br />17.27 <br />0.00 <br />-5.77 <br />620 <br />1.2 <br />0.53 <br /><0.50 <br />6.3 <br /><0.50 <br />15 <br />4.30 <br />10/20/14 <br />19.76 <br />0.00 <br />-8.26 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.38 <br />10/21/14 <br />- <br />- <br />- <br />500 <br />0.64 <br /><0.50 <br /><0.50 <br />3.8 <br /><0.50 <br />14 <br />- <br />04/27/15 <br />18.37 <br />0.00 <br />-6.87 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.24 <br />04/28/15 <br />- <br />- <br />- <br />530 <br />1.2 <br /><0.50 <br /><0.50 <br />2.1 <br /><0.50 <br />14 <br />- <br />10/19/15 <br />20.45 <br />0.00 <br />-8.95 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.30 <br />10/22/15 <br />- <br />- <br />- <br />500 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.5 <br /><0.50 <br />12 <br />- <br />04/11/16 <br />18.18 <br />0.00 <br />-6.68 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.18 <br />04/12/16 <br />- <br />- <br />- <br />310 <br />0.99 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- <br />12/12/16 <br />19.59 <br />0.00 <br />-8.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.12 <br />12/14/16 <br />- <br />- <br />- <br />270 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- <br />04/10/17 <br />11.40 <br />13.74 <br />0.00 <br />-2.34 <br />390 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.50 <br /><0.50 <br />6.5 <br />0.42 <br />10/24/17 <br />16.71 <br />0.00 <br />-5.31 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.27 <br />10/25/17 <br />- <br />- <br />- <br />98 <br />0.72 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><10.0 <br />- <br />05/07/18 <br />15.21 <br />0.00 <br />-3.81 <br />220 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />1.16 <br />05/28/19 <br />13.28 <br />0.00 <br />-1.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.37 <br />05/29/19 <br />- <br />- <br />- <br />124 BL <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br />8.0 <br />- <br />11/25/19 <br />15.91 <br />0.00 <br />-4.51 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.04 <br />11/26/19 <br />- <br />- <br />- <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />- <br />04/01/20 <br />14.90 <br />0.00 <br />-3.50 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/02/20 <br />- <br />- <br />- <br />180 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.43 <br />11/09/20 <br />INA, NS <br />05/07/21 <br />INA, NS <br />11/23/21 <br />16.41 <br />0.00 <br />-5.01 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.23 <br />05/09/22 <br />15.42 <br />0.00 <br />-4.02 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><5.00 <br />3.57 <br />11/28/22 <br />17.60 <br />0.00 <br />-6.20 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><5.00 <br />0.26 <br />SMW-22-80 11/08/07 <br />9.50 <br />21.11 <br />0.00 <br />-11.61 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />11/20/07 <br />21.80 <br />0.00 <br />-12.30 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />11/30/07 <br />21.64 <br />0.00 <br />-12.14 <br />970 <br />420 N <br />60 <br />4.1 <br />1.4 <br />9.5 <br /><1.0 <br /><10 <br /><2.0 <br /><2.0 <br /><2.0 <br /><100 <br /><0.50 <br /><1.0 <br />02/04/08 <br />20.35 <br />0.00 <br />-10.85 <br />940 <br />190 N <br />28 <br />4.2 <br />3.0 <br />15 <br /><1.0 <br /><10 <br /><2.0 <br /><2.0 <br /><2.0 <br />410 <br /><0.50 <br /><1.0 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 102 of 116 Stantec <br />