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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 />(lig/ <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'Z <br />DCA <br />DCA <br />EDB <br />(p9/L) <br />D.O. <br />(m9/L) <br />Comments <br />on <br />AMW-3 02/18/10 <br />11.21 <br />21.21 <br />0.00 <br />-10.00 <br />- - <br />- - <br />- <br />- <br />- <br />- <br />- <br />- - - - - <br />- <br />- 0.5 <br />02/19/10 <br />- <br />- <br />- <br />16,000 N <br />5,100 <br /><100 <br />910 <br />160 <br /><100 <br /><2,000 <br /><100 <100 <100 <60,000 <br /><100 <br />- <br />05/24/10 <br />19.86 <br />0.00 <br />-8.65 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - - - <br />- <br />0.5 <br />05/25/10 <br />- <br />- <br />- <br />15,000 <br />4,400 <br /><100 <br />340 <br /><100 <br /><100 <br /><2,000 <br /><100 <100 <100 <60,000 <br /><100 <br /><100 - <br />Strong hydrocarbon odor <br />10/04/10 <br />12.99 <br />20.85 <br />0.00 <br />-7.86 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - - - <br />- <br />- <br />10/15/10 <br />- <br />- <br />- <br />6,200 <br />1,900 <br />12 <br />110 <br />20 <br />2.2 <br />64 <br /><1.5 <1.5 <1.5 <15 <br /><3.0 <br />04/04/11 <br />18.52 <br />0.00 <br />-5.53 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - - - <br />- <br />0.13 <br />B Zone <br />04/06/11 <br />- <br />- <br />- <br />4,200 <br />1,500 <br />8.0 <br />11 <br />4.9 <br />2.0 <br />77 <br />- <br />BZone <br />10/03/11 <br />19.25 <br />0.00 <br />-6.26 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.00 <br />Odor <br />10/05/11 <br />- <br />- <br />- <br />5,400 <br />1,400 <br />10 <br />310 <br />18 <br /><4.0 <br />50 <br />- <br />04/09/12 <br />19.10 <br />0.00 <br />-6.11 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />4,500 <br />1,500 <br />12 <br />16 <br />6.1 <br /><4.0 <br />83 <br />0.93 <br />10/16/12 <br />19.51 <br />0.00 <br />-6.52 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.57 <br />10/17/12 <br />- <br />- <br />- <br />3,600 <br />300 <br />5.4 <br />45 <br />11 <br />1.4 <br />51 <br />- <br />04/24/13 <br />17.92 <br />0.00 <br />-4.93 <br />1,700 <br />43 <br />1.6 <br />7.9 <br />2.0 <br />1.2 <br />48 <br />0.98 <br />10/14/13 <br />19.63 <br />0.00 <br />-6.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.45 <br />10/15/13 <br />- <br />- <br />- <br />1,400 <br />32 <br />0.90 <br />1.7 <br />0.57 <br />1.1 <br />32 <br />- <br />04/22/14 <br />19.04 <br />0.00 <br />-6.05 <br />1,400 <br />9.8 <br />1.1 <br />1.8 <br />0.85 <br />1.1 <br />39 <br />0.37 <br />10/20/14 <br />20.49 <br />0.00 <br />-7.50 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.77 <br />10/23/14 <br />- <br />- <br />- <br />1,100 <br />91 <br />1.5 <br />0.52 <br />0.63 <br />1.7 <br />50 <br />- <br />04/27/15 <br />19.41 <br />0.00 <br />-6.42 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.38 <br />04/28/15 <br />- <br />- <br />- <br />4,200 <br />380 <br />3.8 <br />210 <br />4.7 <br />1.3 <br />50 <br />- <br />10/19/15 <br />21.28 <br />0.00 <br />-8.29 <br />1,900 <br />96 <br />3.1 <br />1.4 <br />5.1 <br />2.9 <br />72 <br />0.59 <br />04/11/16 <br />19.08 <br />0.00 <br />-6.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.48 <br />04/14/16 <br />- <br />- <br />- <br />1,700 <br />1.8 <br />1.4 <br /><0.50 <br /><2.1 <br />1.1 <br />50 <br />- <br />12/12/16 <br />20.90 <br />0.00 <br />-7.91 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.10 <br />12/14/16 <br />- <br />- <br />- <br />890 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />0.77 <br />32 <br />- <br />04/10/17 <br />13.06 <br />14.91 <br />0.00 <br />-1.85 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/12/17 <br />- <br />- <br />- <br />1,500 <br />30 <br />2.8 <br />0.52 <br />4.2 <br /><0.50 <br />75 <br />0.53 <br />10/24/17 <br />17.52 <br />0.00 <br />-4.46 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.57 <br />10/27/17 <br />- <br />- <br />- <br />970 <br /><0.50 <br />0.67 <br /><0.50 <br /><1.5 <br /><0.50 <br />33 <br />- <br />05/07/18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.90 <br />05/09/18 <br />16.90 <br />0.00 <br />-3.84 <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />- <br />05/28/19 <br />14.51 <br />0.00 <br />-1.45 <br />200 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br />17 <br />0.54 <br />11/25/19 <br />16.73 <br />0.00 <br />-3.67 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.75 <br />11/26/19 <br />- <br />- <br />- <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br />40.6 BL <br />- <br />04/01/20 <br />15.90 <br />0.00 <br />-2.84 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Odor <br />04/02/20 <br />- <br />0.00 <br />- <br />420 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />13 <br />0.82 <br />11/12/20 <br />17.68 <br />0.00 <br />-4.62 <br />590 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />11 <br />0.37 <br />odor <br />05/11/21 <br />16.97 <br />0.00 <br />-3.91 <br />530 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br />44 <br />0.81 <br />12/03/21 <br />17.55 <br />0.00 <br />-4.49 <br />1,200 <br /><0.5 <br />0.64 <br /><0.5 <br /><1.5 <br />0.63 <br />20 <br /><0.5 <br />0.24 <br />05/06/22 <br />16.71 <br />0.00 <br />-3.65 <br />450 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br />17 <br />- <br />0.71 <br />12/14/22 <br />18.79 <br />0.00 <br />-5.73 <br />440 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br />16 <br />0 <br />AMW-4 01/20/93 <br />12.34 <br />44.35 <br />0.00 <br />-32.01 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />01/26/93 <br />43.99 <br />0.00 <br />-31.65 <br />- <br />- <br />- <br />- <br />- <br />03/10/93 <br />42.42 <br />0.00 <br />-30.08 <br />110,000 <br />14,000 <br />24,000 <br />3,200 <br />15,000 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 11 of 116 Stantec <br />