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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 />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-2 10/13/10 <br />12.59 <br />- <br />- <br />- <br /><50 <50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />04/04/11 <br />18.11 <br />0.00 <br />-5.52 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />0.17 <br />A 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 />- <br />A Zone <br />10/03/11 <br />NSP <br />18.49 <br />0.00 <br />-5.90 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/09/12 <br />18.60 <br />0.00 <br />-6.01 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />0.94 <br />10/16/12 <br />18.95 <br />0.00 <br />-6.36 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.69 <br />10/19/12 <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 />04/22/13 <br />17.68 <br />0.00 <br />-5.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.48 <br />04/25/13 <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 />NSP <br />18.94 <br />0.00 <br />-6.35 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/22/14 <br />18.47 <br />0.00 <br />-5.88 <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br />0.46 <br />10/20/14 <br />NSP <br />20.20 <br />0.00 <br />-7.61 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/27/15 <br />18.94 <br />0.00 <br />-6.35 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.37 <br />04/28/15 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br /><0.50 <br /><5.0 <br />- <br />10/19/15 <br />NSP <br />20.95 <br />0.00 <br />-8.36 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/16 <br />18.73 <br />0.00 <br />-6.14 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.99 <br />04/14/16 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- <br />12/12/16 <br />NSP <br />20.30 <br />0.00 <br />-7.71 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/17 <br />12.57 <br />14.45 <br />0.00 <br />-1.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br /><50.0 - <br />- 0.79 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />- - - - - - <br />- 0.36 <br />10/24/17 <br />NSP <br />17.01 <br />0.00 <br />-4.44 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/07/18 <br />16.45 <br />0.00 <br />-3.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.36 <br />05/08/18 <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 />- - <br />05/28/19 <br />13.93 <br />0.00 <br />-1.36 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.42 <br />05/29/19 <br />- <br />- <br />- <br /><100 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br /><5.00 <br />- <br />11/25/19 <br />NSP <br />16.36 <br />0.00 <br />-3.79 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/01 /20 <br />15.61 <br />0.00 <br />-3.04 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/02/20 <br />- <br />- <br />- <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.52 <br />11/09/20 <br />NSP <br />17.12 <br />0.00 <br />-4.55 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />odor <br />05/05/21 <br />16.26 <br />0.00 <br />-3.69 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br />2.0 <br /><5 <br />3.39 <br />11/22/21 <br />NS <br />17.15 <br />0.00 <br />-4.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/06/22 <br />16.02 <br />0.00 <br />-3.45 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><5.00 <br />0.61 <br />11/23/22 <br />NS <br />18.49 <br />0.00 <br />-5.92 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />SMW-3 02/05/92 <br />11.34 <br />41.62 <br />0.00 <br />-30.28 <br />80,000 <br />1,900 <br />3,100 <br />1,200 <br />5,300 <br />05/15/92 <br />40.80 <br />0.00 <br />-29.46 <br />31,000 <br />1,900 <br />3,300 <br />1,200 <br />4,300 <br />10/15/92 <br />43.18 <br />0.00 <br />-31.84 <br />- <br />- <br />- <br />- <br />- <br />12/17/92 <br />43.33 <br />0.00 <br />-31.99 <br />31,000 <br />3,500 <br />2,000 <br />950 <br />3,100 <br />03/18/93 <br />40.95 <br />0.00 <br />-29.61 <br />44,000 <br />2,200 <br />2,400 <br />1,200 <br />4,500 <br />06/10/93 <br />39.24 <br />0.00 <br />-27.90 <br />22,000 <br />1,200 <br />860 <br />380 <br />1,500 <br />09/20/93 <br />- <br />- <br />- <br />160 <br />3.6 <br />0.60 <br />- <br />4.4 <br />10/22/93 <br />40.34 <br />0.00 <br />-29.00 <br />- <br />- <br />12/22/93 <br />40.12 <br />0.00 <br />-28.78 <br />- <br />- <br />03/16/94 <br />39.39 <br />0.00 <br />-28.05 <br />22,000 <br />1,700 <br />960 <br />550 <br />2,100 <br />06/15/94 <br />38.98 <br />0.00 <br />-27.64 <br />16,000 <br />1,300 <br />1,100 <br />590 <br />2,100 <br />09/22/94 <br />40.35 <br />0.00 <br />-29.01 <br />24,000 <br />1,600 <br />1,000 <br />700 <br />2,200 <br />12/01/94 <br />1 <br />40.02 <br />0.00 <br />-28.68 <br />1 27,000 <br />2,300 <br />1,700 <br />1,100 <br />3,800 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 60 of 116 Stantec <br />