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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 />AMW-2 08/09/04 <br />10.83 <br />24.56 <br />0.00 <br />-13.73 <br />5,300 <br />980 <br />38 J <br />70 <br />140 <br /><25 <br /><1,000 <br /><25 <br /><25 <br /><25 <br /><5,000 <br /><25 <br />2.7 <br />11/15/04 <br />25.42 <br />0.00 <br />-14.59 <br />7,400 J <br />1,400 <br />81 <br />220 <br />290 <br /><25 <br /><1,000 <br /><50 <br /><50 <br /><50 <br /><5,000 <br /><25 <br />0.5 <br />02/08/05 <br />24.15 <br />0.00 <br />-13.32 <br />9,500 <br />2,500 <br />120 <br />420 <br />390 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.8 <br />05/09/05 <br />21.88 <br />0.00 <br />-11.05 <br />7,300 <br />1,800 <br />95 <br />300 <br />400 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.2 <br />08/18/05 <br />22.58 <br />0.00 <br />-11.75 <br />11,000 <br />2,300 <br />200 <br />500 <br />520 <br /><25 <br /><1,000 <br /><25 <br /><25 <br /><25 <br /><5,000 <br /><25 <br />1.0 <br />11/17/05 <br />NS <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />02/06/06 <br />NS <br />05/08/06 <br />NS <br />08/07/06 <br />19.91 <br />0.00 <br />-9.08 <br />3,300 <br />470 <br />19 <br />80 <br />93 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.7 <br />10/30/06 <br />10.54 <br />20.85 <br />0.00 <br />-10.31 <br />4,800 <br />520 <br />18 <br />90 <br />63 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />1.0 <br />01/29/07 <br />21.02 <br />0.00 <br />-10.48 <br />3,700 <br />570 <br />37 <br />160 <br />120 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />2.2 <br />05/07/07 <br />20.49 <br />0.00 <br />-9.95 <br />3,600 <br />450 <br />30 <br />88 <br />91 <br /><2.5 <br /><100 <br /><2.5 <br /><2.5 <br /><2.5 <br /><1,500 <br /><2.5 <br />2.8 <br />08/06/07 <br />21.13 <br />0.00 <br />-10.59 <br />1,500 <br />170 <br />9.3 <br />14 <br />20 <br /><5.0 <br /><200 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />2.8 <br />11/01/07 <br />21.70 <br />0.00 <br />-11.16 <br />2,300 <br />470 <br />27 <br />60 <br />24 <br /><2.5 <br /><100 <br /><2.5 <br /><2.5 <br /><2.5 <br /><1,500 <br /><2.5 <br />1.5 <br />02/04/08 <br />20.36 <br />0.00 <br />-9.82 <br />210 <br />9.4 <br />0.60 <br />1.2 <br />1.3 <br /><0.50 <br />13 <br /><0.50 <br /><0.50 <br /><0.50 <br /><100 <br /><0.50 <br />1.0 <br />05/05/08 <br />19.74 <br />0.00 <br />-9.20 <br />7,400 <br />2,300 <br />70 <br />180 <br />210 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />1.5 <br />08/04/08 <br />20.66 <br />0.00 <br />-10.12 <br />2,500 <br />450 <br />15 <br />19 <br />40 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />0.7 <br />10/23/08 <br />21.57 <br />0.00 <br />-11.03 <br />7,500 <br />1,800 <br />61 <br />230 <br />200 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />1.0 <br />01/27/09 <br />21.65 <br />0.00 <br />-11.11 <br />3,000 <br />300 <br /><10 <br />17 <br />23 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />0.5 <br />04/27/09 <br />20.30 <br />0.00 <br />-9.76 <br />4,500 <br />860 <br />31 <br />130 <br />100 <br /><5.0 <br /><100 <br /><5.0 <br /><5.0 <br /><5.0 <br /><3,000 <br /><5.0 <br />2.4 <br />07/22/09 <br />21.24 <br />0.00 <br />-10.70 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />11.1 <br />07/23/09 <br />- <br />- <br />- <br />9,100 <br />1,800 <br />69 <br />300 <br />180 <br /><25 <br /><500 <br /><25 <br /><25 <br /><25 <br /><15,000 <br /><25 <br />- <br />02/18/10 <br />20.65 <br />0.00 <br />-10.11 <br />4,100 <br />460 <br />25 <br />100 <br />95 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br />0.4 <br />05/24/10 <br />19.19 <br />0.00 <br />-8.65 <br />8,800 <br />1,000 <br />38 <br />37 <br />120 <br /><10 <br /><200 <br /><10 <br /><10 <br /><10 <br /><6,000 <br /><10 <br /><10 0.7 <br />09/03/10 <br />19.77 <br />0.00 <br />-9.23 <br />1,600 <br />420 <br />9.6 <br />26 <br />24 <br /><0.90 <br />63 <br />0.91 <br /><0.90 <br /><0.90 <br />240 <br /><0.90 <br />- 0.7 <br />09/03/10 <br />DUP <br />19.77 <br />0.00 <br />-9.23 <br />8,500 <1,500 <br />1,400 <br />55 <br />220 <br />160 <br /><2.5 <br />34 <br /><2.5 <br /><2.5 <br /><2.5 <br /><25 <br /><2.5 <br />0.7 <br />Duplicate 8 <br />10/04/10 <br />12.28 <br />20.17 <br />0.00 <br />-7.89 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/14/10 <br />- <br />- <br />- <br />11,000 <br />1,400 <br />61 <br />370 <br />180 <br /><1.5 <br />22 <br /><1.5 <br /><1.5 <br /><1.5 <br /><15 <br /><2.5 <br />- <br />04/04/11 <br />17.68 <br />0.00 <br />-5.40 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.21 <br />B Zone <br />04/05/11 <br />- <br />- <br />- <br />12,000 <br />1,600 <br />54 <br />250 <br />170 <br /><0.50 <br />25 <br />- <br />BZone <br />10/03/11 <br />18.59 <br />0.00 <br />-6.31 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.75 <br />Odor <br />10/05/11 <br />- <br />- <br />- <br />7,400 <br />800 <br />34 <br />160 <br />110 <br /><1.5 <br />19 <br />- <br />04/09/12 <br />18.41 <br />0.00 <br />-6.13 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/12 <br />- <br />- <br />- <br />12,000 <br />1,800 <br />66 <br />490 <br />170 <br /><3.0 <br />17 <br />2.85 <br />10/16/12 <br />18.96 <br />0.00 <br />-6.68 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.60 <br />10/17/12 <br />- <br />- <br />- <br />3,000 <br />140 <br />3.1 <br />11 <br />9.9 <br />0.61 <br />27 <br />- <br />04/23/13 <br />17.41 <br />0.00 <br />-5.13 <br />830 <br />1.5 <br /><0.50 <br /><0.50 <br />0.70 <br /><0.50 <br />13 <br />0.50 <br />10/14/13 <br />18.92 <br />0.00 <br />-6.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.04 <br />10/16/13 <br />- <br />- <br />- <br />430 <br />7.6 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />16 <br />- <br />04/22/14 <br />18.41 <br />0.00 <br />-6.13 <br />6,600 <br />940 <br />25 <br />110 <br />38 <br />0.68 <br />18 <br />0.38 <br />10/20/14 <br />20.08 <br />0.00 <br />-7.80 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.37 <br />10/21/14 <br />- <br />- <br />- <br />6,400 <br />900 <br />20 <br />63 <br />20 <br /><1.5 <br />21 <br />- <br />04/27/15 <br />18.57 <br />0.00 <br />-6.29 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.62 <br />04/28/15 <br />- <br />- <br />- <br />6,900 <br />1,200 <br />23 <br />36 <br />24 <br /><0.50 <br />12 <br />- <br />10/19/15 <br />20.50 <br />0.00 <br />-8.22 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.49 <br />10/21/15 <br />- <br />- <br />- <br />6,200 <br />1,600 <br />10 <br />29 <br />10 <br /><2.5 <br />36 <br />- <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 8 of 116 Stantec <br />