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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 />(p9/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 />AMW-7 11/07/05 <br />8.88 <br />21.51 <br />0.00 <br />-12.63 <br />7,200 J <br />130 <br />88 <br />250 <br />260 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><1,000 <br /><5.0 <br />0.6 <br />02/06/06 <br />20.41 <br />0.00 <br />-11.53 <br />7,900 <br />190 <br />130 <br />450 <br />410 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.2 <br />05/08/06 <br />17.90 <br />0.00 <br />-9.02 <br />8,200 J <br />170 J <br />91 <br />400 J <br />390 J <br /><5.0 <br /><50 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.8 <br />08/07/06 <br />18.28 <br />0.00 <br />-9.40 <br />2,200 <br />68 <br />20 <br />81 <br />99 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />0.8 <br />10/30/06 <br />8.85 <br />19.20 <br />0.00 <br />-10.35 <br />1,300 <br />39 <br />12 <br />47 <br />79 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />0.9 <br />01/29/07 <br />19.41 <br />0.00 <br />-10.56 <br />8,200 <br />700 <br />240 <br />440 <br />1,400 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.8 <br />05/07/07 <br />18.83 <br />0.00 <br />-9.98 <br />8,100 <br />220 <br />96 <br />410 <br />550 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />2.1 <br />08/06/07 <br />19.50 <br />0.00 <br />-10.65 <br />2,000 <br />91 <br />31 <br />78 <br />160 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />6.8 <br />11/01/07 <br />20.11 <br />0.00 <br />-11.26 <br />3,000 <br />130 <br />50 <br />110 <br />220 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.7 <br />02/04/08 <br />18.70 <br />0.00 <br />-9.85 <br />7,400 <br />220 <br />150 <br />280 <br />1,100 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><2,000 <br /><10 <br />0.7 <br />05/05/08 <br />18.05 <br />0.00 <br />-9.20 <br />2,000 <br />11 <br /><10 <br />21 <br />24 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />5.3 <br />08/04/08 <br />19.00 <br />0.00 <br />-10.15 <br />1,200 <br />2.4 <br />0.89 <br />6.3 <br />6.7 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />5.8 <br />10/23/08 <br />19.95 <br />0.00 <br />-11.10 <br />1,700 <br />6.1 <br />1.9 <br />16 <br />17 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />1.3 <br />01/27/09 <br />20.00 <br />0.00 <br />-11.15 <br />800 <br /><0.50 <br /><0.50 <br />0.51 <br />0.83 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />2.4 <br />04/27/09 <br />18.63 <br />0.00 <br />-9.78 <br />3,200 <br />21 <br />10 <br />68 <br />45 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />3.6 <br />07/22/09 <br />19.28 <br />0.00 <br />-10.43 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />6.8 <br />07/23/09 <br />- <br />- <br />- <br />460 <br />0.59 <br /><0.50 <br /><0.50 <br />0.68 <br /><0.50 <br /><10 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />- <br />02/18/10 INA <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Safety concerns <br />05/24/10 <br />17.56 <br />0.00 <br />-8.71 <br />63 <br /><0.50 <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 1.2 <br />Hydrocarbon odor <br />10/04/10 <br />10.66 <br />18.53 <br />0.00 <br />-7.87 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />10/14/10 <br />- <br />- <br />- <br />680 <br />0.80 <br />0.60 <br />1.4 <br />2.9 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><8.0 <br /><0.50 <br />- <br />04/04/11 <br />16.97 <br />0.00 <br />-6.31 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.99 <br />B Zone <br />04/05/11 <br />- <br />- <br />- <br />310 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.74 <br /><0.50 <br /><5.0 <br />- <br />B Zone <br />10/03/11 INA <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Well paved over <br />04/09/12 <br />16.80 <br />0.00 <br />-6.14 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />550 <br />10 <br />7.2 <br />25 <br />10 <br /><0.50 <br /><5.0 <br />3.19 <br />10/16/12 <br />17.31 <br />0.00 <br />-6.65 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.52 <br />10/17/12 <br />- <br />- <br />- <br />140 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />- <br />04/22/13 <br />15.72 <br />0.00 <br />-5.06 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.36 <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 />- <br />10/14/13 <br />17.28 <br />0.00 <br />-6.62 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.75 <br />10/15/13 <br />- <br />- <br />- <br />220 <br />0.64 <br /><0.50 <br />0.51 <br />0.86 <br /><0.50 <br /><5.0 <br />- <br />04/22/14 <br />16.69 <br />0.00 <br />-6.03 <br />730 <br />1.6 <br /><0.50 <br />0.86 <br />1.9 <br /><0.50 <br /><5.0 <br />0.36 <br />10/20/14 <br />18.47 <br />0.00 <br />-7.81 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.43 <br />10/23/14 <br />- <br />- <br />- <br />91 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />- <br />04/27/15 <br />17.07 <br />0.00 <br />-6.41 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.22 <br />04/28/15 <br />- <br />- <br />- <br />92 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br />- <br />10/19/15 <br />18.74 <br />0.00 <br />-8.08 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.19 <br />10/21/15 <br />- <br />- <br />- <br />97 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br />- <br />04/11/16 <br />16.62 <br />0.00 <br />-5.96 <br />700 <br />1.7 <br />2.6 <br />6.6 <br />2.7 <br /><0.50 <br /><5.0 <br />0.41 <br />12/12/16 <br />18.14 <br />0.00 <br />-7.48 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.51 <br />12/13/16 <br />- <br />- <br />- <br />180 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- <br />04/11/17 <br />10.51 <br />12.23 <br />0.00 <br />-1.72 <br />85 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />2.64 <br />10/26/17 <br />16.10 <br />0.00 <br />-5.59 <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><10.0 <br />2.35 <br />05/09/18 <br />12.50 <br />0.00 <br />-1.99 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />0.40 <br />05/28/19 <br />1 <br />12.11 <br />0.00 <br />-1.60 <br />1 - <br />- <br />- <br />- <br />- <br />- <br />- <br />0.93 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 19 of 116 Stantec <br />