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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-7B 04/07/11 <br />12.00 <br />- <br />- <br />- <br />81,000 <br />21,000 <br />16,000 <br />1,000 <br />4,800 <br />2,700 <br />1,000 <br />- <br />A Zone <br />10/03/11 <br />17.14 <br />0.00 <br />-5.14 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.20 <br />10/04/11 <br />- <br />- <br />- <br />65,000 <br />16,000 <br />10,000 <br />1,300 <br />6,100 <br />2,200 <br />1,200 <br />- <br />04/09/12 <br />18.20 <br />0.00 <br />-6.20 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />100,000 <br />19,000 <br />13,000 <br />1,900 <br />9,300 <br />1,700 <br />1,600 <br />0.60 <br />Odor <br />10/16/12 <br />17.50 <br />0.00 <br />-5.50 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.30 <br />10/18/12 <br />- <br />- <br />- <br />86,000 <br />12,000 <br />6,800 <br />1,500 <br />7,400 <br />1,200 <br />1,600 <br />- <br />04/22/13 <br />16.80 <br />0.00 <br />-4.80 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.27 <br />04/25/13 <br />- <br />- <br />- <br />100,000 <br />22,000 <br />12,000 <br />2,600 <br />11,000 <br />610 <br />2,700 <br />- <br />10/14/13 <br />18.83 <br />0.00 <br />-6.83 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.54 <br />10/15/13 <br />- <br />- <br />- <br />30,000 <br />180 <br />1,400 <br />180 <br />5,700 <br />31 <br />2,700 <br />- <br />04/22/14 <br />17.71 <br />0.00 <br />-5.71 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />3.11 <br />04/23/14 <br />- <br />- <br />- <br />3,200 <br />3.7 <br />19 <br />2.7 <br />370 <br />2.6 <br />200 <br />- <br />08/20/14 <br />18.90 <br />0.00 <br />-6.90 <br />2,600 <br />36 <br />16 <br />43 <br />160 <br />2.9 <br />66 <br /><0.50 <br />- <br />10/20/14 <br />19.40 <br />0.00 <br />-7.40 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.21 <br />10/21/14 <br />- <br />- <br />- <br />1,500 <br />34 <br />15 <br />12 <br />62 <br />3.6 <br />74 <br />- <br />04/27/15 <br />18.02 <br />0.00 <br />-6.02 <br />1,400 <br />26 <br />15 <br />10 <br />23 <br /><0.50 <br /><5.0 <br />0.10 <br />10/19/15 <br />20.18 <br />0.00 <br />-8.18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.32 <br />10/22/15 <br />- <br />- <br />- <br />8,300 <br />130 <br />42 <br />300 <br />360 <br />10 <br />140 <br />- <br />04/11/16 <br />17.96 <br />0.00 <br />-5.96 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.09 <br />04/13/16 <br />- <br />- <br />- <br />4,100 <br />34 <br />11 <br />110 <br />150 <br />3.2 <br />25 <br />- <br />12/12/16 <br />18.95 <br />0.00 <br />-6.95 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.24 <br />12/13/16 <br />- <br />- <br />- <br />3,900 <br />24 <br />6.6 <br />110 <br />43 <br />2.1 <br />32 <br />- <br />04/10/17 <br />12.07 <br />14.51 <br />0.00 <br />-2.44 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br />1,600 <br />9.6 <br />3.1 <br />31 <br />13 <br /><0.50 <br /><5.0 <br />0.38 <br />10/24/17 <br />16.30 <br />0.00 <br />-4.23 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.47 <br />10/25/17 <br />- <br />- <br />- <br />1,200 <br />27 <br />4.0 <br />20 <br />8.1 <br /><0.50 <br />120 <br />- <br />05/07/18 <br />15.22 <br />0.00 <br />-3.15 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.19 <br />05/08/18 <br />- <br />- <br />- <br />1,500 <br />17 <br />2.8 <br />53 <br />6.4 <br />4.5 <br />120 <br />- <br />05/28/19 <br />13.36 <br />0.00 <br />-1.29 <br />960 <br />5.9 <br /><1.00 <br />12 <br /><3.00 <br />2.7 <br />92 <br />0.49 <br />11/25/19 <br />15.89 <br />0.00 <br />-3.82 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.35 <br />12/03/19 <br />- <br />- <br />- <br /><500 <br />3.8 <br /><2.50 <br />3.6 <br /><7.50 <br /><2.50 <br /><50.0 <br />- <br />04/01 /20 <br />14.91 <br />0.00 <br />-2.84 <br />1,100 <br />4.9 <br />1.2 <br />11 <br />2.7 <br />2.2 <br />84 <br />0.19 <br />11/12/20 <br />16.86 <br />0.00 <br />-4.79 <br />690 <br />4.1 <br />0.58 <br />2.2 <br />2.2 <br />1.9 <br />27 <br />0.35 <br />odor <br />05/04/21 <br />15.91 <br />0.00 <br />-3.84 <br />960 <br />11 <br />2.8 <br />1.4 <br />2.1 <br /><0.5 <br />52 <br />0.47 <br />11/24/21 <br />16.28 <br />0.00 <br />-4.21 <br />770 <br />1.2 <br />0.83 <br />1.4 <br /><1.5 <br />2.6 <br />39 <br />0.29 <br />05/06/22 <br />15.61 <br />0.00 <br />-3.54 <br />2,000 <br />3.9 <br />2.8 <br />8.2 <br />4.2 <br />4.3 <br />29 <br />0.97 <br />11/30/22 <br />17.67 <br />0.00 <br />-5.60 <br />210 <br />16 <br />4.5 <br />1.1 <br />3.0 <br />4.4 <br />16 <br />1.36 <br />CMW-7C 02/04/08 <br />12.01 <br />18.55 <br />0.00 <br />-6.54 <br />250 <br />2,400 <br />3.0 <br />11 <br />3.0 <br />16 <br />3.0 <br />85 <br /><0.5 <br /><0.5 <br />- <br />05/05/08 <br />19.70 <br />0.00 <br />-7.69 <br />130 <br />350 <br />6.0 <br />9.0 <br />2.0 <br />6.0 <br />6.0 <br />110 <br /><0.5 <br />- <br />08/04/08 <br />20.58 <br />0.00 <br />-8.57 <br /><50 <br />570 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />3.0 <br />140 <br /><0.5 <br /><0.5 <br />10/28/08 <br />21.62 <br />0.00 <br />-9.61 <br />170 <br />330 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />3.0 <br />77 <br /><0.5 <br /><0.5 <br />01/27/09 <br />21.55 <br />0.00 <br />-9.54 <br />160 <br />450 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />3.0 <br />91 <br /><0.5 <br /><0.5 <br />04/27/09 <br />20.12 <br />0.00 <br />-8.11 <br />120 <br />220 <br />1.0 <br />3.0 <br /><0.5 <br />3.0 <br />3.0 <br />94 <br /><0.5 <br /><0.5 <br />10/14/09 <br />21.58 <br />0.00 <br />-9.57 <br /><50 <br />640 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />- <br />- <br />- <br />- <br />05/24/10 <br />1 <br />19.08 <br />0.00 <br />-7.07 <br />1 130 <br />140 <br /><0.5 <br /><0.5 <br /><0.5 <br /><0.5 <br />2.0 <br />150 <br /><0.5 <0.5 <0.5 <br /><0.5 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 41 of 116 Stantec <br />