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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 />LMW-9-12C 10/14/09 <br />11.38 <br />21.80 <br />0.00 <br />-10.42 <br /><50 - <br />- 1.1 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />6.0 <br />0.92 <0.50 <br /><0.50 - - <br /><0.50 <br /><0.50 <br />1.7 <br />01/12/10 <br />21.67 <br />0.00 <br />-10.29 <br />73 <br />0.68 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />5.3 <br />1.1 <0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.8 <br />05/24/10 <br />21.95 <br />0.00 <br />-10.57 <br />100 <br /><0.50 <br /><1.0 <br /><1.0 <br /><1.0 <br /><1.0 <br /><10 <br /><2.0 <2.0 <br /><2.0 <br />0.69 <br /><1.0 <br />- <br />10/04/10 <br />11.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />- <br />- <br />- <br />10/12/10 <br />20.33 <br />0.00 <br />-8.75 <br />98 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />13 <br />2.5 <0.50 <br /><0.50 <br />0.66 <br /><0.50 <br />04/04/11 <br />18.20 <br />0.00 <br />-6.62 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />- <br />- <br />- <br />0.39 <br />D Zone <br />04/05/11 <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 />D Zone <br />10/03/11 <br />NSP <br />18.70 <br />0.00 <br />-7.12 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/09/12 <br />18.35 <br />0.00 <br />-6.77 <br />180 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />22 <br />0.73 <br />1.03 <br />10/16/12 <br />18.70 <br />0.00 <br />-7.12 <br />200 <br />14 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />25 <br />0.57 <br />0.53 <br />04/22/13 <br />17.51 <br />0.00 <br />-5.93 <br />650 <br />190 <br />0.54 <br /><0.50 <br /><0.50 <br /><0.50 <br />27 <br />0.60 <br />0.63 <br />10/14/13 <br />NSP <br />18.54 <br />0.00 <br />-6.96 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/22/14 <br />18.35 <br />0.00 <br />-6.77 <br />4,000 <br />1,200 <br />15 <br />1.9 <br />17 <br /><0.50 <br />40 <br />0.51 <br />4.49 <br />10/20/14 <br />NSP <br />20.30 <br />0.00 <br />-8.72 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/27/15 <br />18.44 <br />0.00 <br />-6.86 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.23 <br />04/28/15 <br />- <br />- <br />- <br />4,100 <br />1,800 <br />26 <br />3.5 <br />39 <br /><0.50 <br /><5.0 <br /><0.50 <br />- <br />10/19/15 <br />NSP <br />20.76 <br />0.00 <br />-9.18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/16 <br />19.30 <br />0.00 <br />-7.72 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.30 <br />04/12/16 <br />- <br />- <br />- <br />4,800 <br />2,300 <br />34 <br /><5.0 <br />58 <br /><5.0 <br /><50.0 <br /><5.0 <br />- <br />12/12/16 <br />NSP <br />19.83 <br />0.00 <br />-8.25 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/17 <br />11.48 <br />14.24 <br />0.00 <br />-2.76 <br /><250 <br />35 <br />0.66 <br /><0.50 <br /><1.5 <br /><0.50 <br /><25.0 <br /><0.50 <br />0.25 <br />10/24/17 <br />NSP <br />16.34 <br />0.00 <br />-4.86 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/07/18 <br />15.68 <br />0.00 <br />-4.20 <br />6,010 BL <br />2,100 <br />51 <br />13 <br />66 <br /><0.500 <br /><200 <br /><0.500 <br />1.36 <br />05/28/19 <br />13.50 <br />0.00 <br />-2.02 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.50 <br />05/29/19 <br />- <br />- <br />- <br />9,600 <br />2,400 <br /><50.0 <br /><50.0 <br /><150 <br /><50.0 <br /><250 <br /><50.0 <br />- <br />11/25/19 <br />NSP <br />15.63 <br />0.00 <br />-4.15 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/01/20 <br />15.00 <br />0.00 <br />-3.52 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/02/20 <br />- <br />- <br />- <br />4,500 <br />1,500 <br />29 <br /><10 <br />39 <br /><10 <br /><100 <br />34 <br />0.29 <br />11/09/20 <br />INA, NSP <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/10/21 <br />15.81 <br />0.00 <br />-4.33 <br /><100 <br />7.4 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />9.1 <br /><0.5 <br />0.91 <br />11/23/21 <br />NS <br />16.51 <br />0.00 <br />-5.03 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/05/22 <br />Odor <br />15.58 <br />0.00 <br />-4.10 <br />680 <br />31 <br />2.9 <br />0.56 <br />12 <br /><0.500 <br />10 <br />0.69 <br />0.95 <br />11/23/22 <br />NS <br />17.68 <br />0.00 <br />-6.20 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />SLMW-10C 07/27/15 <br />11.85 <br />19.52 <br />0.00 <br />-7.67 <br />1,300 <br />3.3 <br />11 <br /><0.50 <br />3.4 <br />2.6 <br /><5.0 <br /><0.50 <br />0.4 <br />10/19/15 <br />20.55 <br />0.00 <br />-8.70 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.55 <br />10/20/15 <br />- <br />- <br />- <br />880 <br />2.4 <br /><0.50 <br /><0.50 <br />3.5 <br />3.0 <br />13 <br /><0.50 <br />- <br />04/11/16 <br />18.30 <br />0.00 <br />-6.45 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.30 <br />04/12/16 <br />- <br />- <br />- <br />750 <br />0.84 <br /><0.50 <br /><0.50 <br /><1.5 <br />3.7 <br />18 <br /><0.50 <br />- <br />12/12/16 <br />19.73 <br />0.00 <br />-7.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.18 <br />12/14/16 <br />- <br />- <br />- <br />300 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />3.2 <br />28 <br /><0.50 <br />- <br />04/10/17 <br />11.56 <br />13.83 <br />0.00 <br />-2.27 <br />280 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />3.7 <br />47 <br /><0.50 <br />0.3 <br />10/24/17 <br />16.43 <br />0.00 <br />-4.87 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.4 <br />10/25/17 <br />- <br />- <br />- <br />180 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />3.1 <br />29 <br /><0.50 <br />- <br />05/07/18 <br />15.29 <br />0.00 <br />-3.73 <br />173 BL <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br />2.3 <br />24 <br /><0.500 <br />0.75 <br />05/28/19 <br />13.42 <br />0.00 <br />-1.86 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.45 <br />05/29/19 <br />- <br />- <br />- <br /><100 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br />3.6 <br />47 <br /><1.00 <br />- <br />Stockton -charter way_comingles_plume_4g22.xlsm Page 52 of 116 Stantec <br />