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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 />SMW-3-119 01/28/09 <br />10.41 <br />- <br />- <br />- <br />4,900 <br />190 N <br />1,400 <br /><20 <br /><20 <br /><20 <br /><20 <br /><200 <br /><40 <br /><40 <br /><40 <br /><2,000 <br /><10 <br /><20 <br />04/27/09 <br />21.70 <br />0.00 <br />-11.29 <br />3,200 <br />290 N <br />1,100 <br /><20 <br /><20 <br /><20 <br /><20 <br /><200 <br /><40 <br /><40 <br /><40 <br /><2,000 <br /><10 <br /><20 <br />10/14/09 <br />23.10 <br />0.00 <br />-12.69 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/15/09 <br />- <br />- <br />- <br />4,200 <br />370 N <br />1,200 <br />13 <br /><10 <br />15 <br /><10 <br /><100 <br /><20 <br /><20 <br /><20 <br /><1,000 <br /><5.0 <br /><10 <br />05/24/10 <br />20.51 <br />0.00 <br />-10.10 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/25/10 <br />- <br />- <br />- <br />4,900 <br />430 N <br />1,500 <br />19 <br /><10 <br />24 <br /><10 <br /><100 <br /><20 <br /><20 <br /><20 <br /><1,000 <br /><5.0 <br /><10 <br />10/04/10 <br />12.97 <br />21.55 <br />0.00 <br />-8.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/15/10 <br />- <br />- <br />- <br />3,700 <br /><200 <br />1,600 <br />20 <br />3.9 <br />19 <br /><0.50 <br />41 <br />4.1 <br /><0.50 <br /><0.50 <br /><8.0 <br /><0.50 <br />04/04/11 <br />18.89 <br />0.00 <br />-5.92 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.09 <br />D Zone <br />04/07/11 <br />- <br />- <br />- <br />2,900 <br />1,300 <br />18 <br />3.6 <br />16 <br /><3.0 <br />29 <br />- <br />D Zone <br />10/03/11 <br />19.79 <br />0.00 <br />-6.82 <br />3,000 <br />1,200 <br />17 <br />5.1 <br />12 <br /><3.0 <br />35 <br />0.50 <br />04/09/12 <br />19.50 <br />0.00 <br />-6.53 <br />3,600 <br />1,600 <br />23 <br />5.2 <br />15 <br /><2.5 <br />41 <br />1.12 <br />10/16/12 <br />20.08 <br />0.00 <br />-7.11 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.71 <br />10/19/12 <br />- <br />- <br />- <br />4,000 <br />1,400 <br />19 <br />5.5 <br />17 <br /><2.5 <br />42 <br />- <br />04/22/13 <br />18.51 <br />0.00 <br />-5.54 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.41 <br />04/25/13 <br />- <br />- <br />- <br />3,800 <br />1,600 <br />23 <br />6.6 <br />20 <br /><2.5 <br />39 <br />- <br />10/14/13 <br />20.01 <br />0.00 <br />-7.04 <br />3,200 <br />1,200 <br />19 <br />6.8 <br />28 <br /><2.5 <br />37 <br />0.85 <br />04/22/14 <br />19.44 <br />0.00 <br />-6.47 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />2.20 <br />04/24/14 <br />- <br />- <br />- <br />3,800 <br />1,200 <br />19 <br />5.1 <br />18 <br /><2.5 <br />34 <br />- <br />10/20/14 <br />21.12 <br />0.00 <br />-8.15 <br />3,500 <br />1,200 <br />15 <br />3.9 <br />16 <br /><2.5 <br />49 <br />0.61 <br />04/27/15 <br />19.71 <br />0.00 <br />-6.74 <br />4,200 <br />1,400 <br />17 <br />3.0 <br />15 <br /><2.5 <br />46 <br />0.97 <br />10/19/15 <br />21.71 <br />0.00 <br />-8.74 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.38 <br />10/22/15 <br />- <br />- <br />- <br />3,300 <br />1,400 <br />18 <br />4.0 <br />19 <br /><2.5 <br />37 <br />- <br />04/11/16 <br />19.58 <br />0.00 <br />-6.61 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.33 <br />04/14/16 <br />- <br />- <br />- <br />3,700 <br />1,500 <br />22 <br />5.3 <br />24 <br /><3.6 <br /><35.7 <br />- <br />12/12/16 <br />21.33 <br />0.00 <br />-8.36 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.43 <br />12/14/16 <br />- <br />- <br />- <br />3,300 <br />1,300 <br />17 <br />4.0 <br />17 <br /><3.6 <br /><35.7 <br />- <br />04/10/17 <br />12.92 <br />15.17 <br />0.00 <br />-2.25 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/12/17 <br />- <br />- <br />- <br />5,700 <br />1,900 <br />29 <br />8.2 <br />25 <br /><2.5 <br />39 <br />0.4 <br />10/24/17 <br />17.73 <br />0.00 <br />-4.81 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.32 <br />10/25/17 <br />- <br />- <br />- <br />170 <br />27 <br />0.65 <br /><0.50 <br /><1.5 <br /><0.50 <br />9.1 <br />- <br />05/07/18 <br />17.22 <br />0.00 <br />-4.30 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.46 <br />05/08/18 <br />- <br />- <br />- <br />3,700 <br />1,300 <br />4.3 <br />5.6 <br />25 <br /><0.500 <br />30 <br />- <br />05/28/19 <br />14.26 <br />0.00 <br />-1.34 <br />710 <br /><20.0 <br /><20.0 <br /><20.0 <br /><60.0 <br /><20.0 <br /><100 <br />0.82 <br />11/25/19 <br />17.01 <br />0.00 <br />-4.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.75 <br />11/27/19 <br />- <br />- <br />- <br />570 <br />1.00 <br />0.52 <br /><0.500 <br />2.6 <br /><0.500 <br />28 <br />- <br />04/01 /20 <br />16.33 <br />0.00 <br />-3.41 <br />660 <br />0.86 <br /><0.5 <br /><0.5 <br />2.6 <br /><0.5 <br />28 <br />0.58 <br />11/11/20 <br />17.90 <br />0.00 <br />-4.98 <br />610 <br />0.58 <br /><0.5 <br /><0.5 <br />1.8 <br /><0.5 <br />28 <br />0.38 <br />odor <br />05/07/21 <br />17.07 <br />0.00 <br />-4.15 <br />330 <br />0.58 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />26 <br />8.67 <br />12/01/21 <br />17.77 <br />0.00 <br />-4.85 <br />510 <br />3.6 <br />0.64 <br /><0.5 <br />1.5 <br />0.59 <br /><5 <br /><0.5 <br />3.52 <br />05/05/22 <br />16.83 <br />0.00 <br />-3.91 <br />360 <br />2.8 <br /><0.500 <br /><0.500 <br /><1.50 <br />0.72 <br />29 <br />- <br />0.15 <br />11/28/22 ODOR <br />19.21 <br />0.00 <br />-6.29 <br />360 <br />2.0 <br /><0.500 <br /><0.500 <br />1.6 <br />0.95 <br />29 <br />0.45 <br />SMW-4 02/05/92 <br />10.09 <br />40.43 <br />0.00 <br />-30.34 <br />160,000 <br />17,000 <br />5,400 <br />2,100 <br />4,400 <br />- <br />- <br />- <br />05/15/92 <br />39.59 <br />0.00 <br />-29.50 <br />81,000 <br />18,000 <br />6,600 <br />2,000 <br />4,400 <br />10/15/92 <br />41.93 <br />0.00 <br />-31.84 <br />- <br />- <br />- <br />- <br />- <br />12/17/92 <br />42.08 <br />0.00 <br />-31.99 <br />340,000 <br />51,000 <br />38,000 <br />6,500 <br />18,000 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 65 of 116 Stantec <br />