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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 />1'2 <br />DCA <br />DCA <br />EDB <br />(p9/L) <br />D.O. <br />(m9/L) <br />Comments <br />AMW-3 08/12/98 <br />9.58 <br />19.27 <br />0.00 <br />-9.69 <br />14,000 <br />4,900 <br />160 <br />1,200 <br />410 <br /><20 <br /><2,000 <br /><20 <br /><20 <br /><20 <br />(53) <br />11/09/98 <br />20.36 <br />0.00 <br />-10.78 <br />26,000 <br />9,300 <br />380 <br />2,000 <br />900 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />02/17/99 <br />19.79 <br />0.00 <br />-10.21 <br />31,000 <br />9,800 <br />600 <br />2,300 <br />1,600 <br />8.5 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />05/25/99 <br />19.95 <br />0.00 <br />-10.37 <br />24,000 <br />9,300 <br />360 <br />2,200 <br />1,100 <br />11 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />08/18/99 <br />20.08 <br />0.00 <br />-10.50 <br />26,000 <br />9,700 <br />360 <br />2,300 <br />870 <br />15 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />12/17/99 <br />20.94 <br />0.00 <br />-11.36 <br />27,000 <br />8,800 <br />110 <br />2,100 <br />610 <br />5.8 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />02/22/00 <br />20.52 <br />0.00 <br />-10.94 <br />1,300 <br />490 <br />19 <br />120 <br />65 <br />6.5 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />06/22/00 <br />18.87 <br />0.00 <br />-9.29 <br />21,000 <br />7,400 <br />62 <br />1,600 <br />350 <br />2.4 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(53) <br />08/30/00 <br />19.98 <br />0.00 <br />-10.40 <br />23,000 <br />9,500 <br />310 <br />2,400 <br />790 <br />13 <br />240 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />11/21/00 <br />20.73 <br />0.00 <br />-11.15 <br />31,300 N <br />7,800 <br />340 <br />2,600 <br />1,800 <br />8.4 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />02/15/01 <br />20.79 <br />0.00 <br />-11.21 <br />39,800 N <br />9,700 <br />180 <br />2,400 <br />1,200 <br />6.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />0.6 <br />05/17/01 <br />20.04 <br />0.00 <br />-10.46 <br />27,100 N <br />8,800 <br />220 <br />2,300 <br />1,200 <br /><10 <br /><1,000 <br /><10 <br /><10 <br /><10 <br /><10 <br />0.5 <br />08/16/01 <br />21.32 <br />0.00 <br />-11.74 <br />30,000 <br />8,700 <br />320 <br />2,800 <br />1,800 <br /><100 <br /><10,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />0.9 <br />12/06/01 <br />22.45 <br />0.00 <br />-12.87 <br />26,000 N <br />10,000 <br /><200 <br />2,000 <br />770 <br /><100 <br /><1,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />0.8 <br />02/14/02 <br />20.90 <br />0.00 <br />-11.32 <br />25,000 <br />6,900 <br />380 <br />2,000 <br />1,500 <br /><100 <br /><1,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />1.9 <br />06/13/02 <br />21.09 <br />0.00 <br />-11.51 <br />22,000 <br />5,400 <br />63 <br />1,800 <br />750 <br /><50 <br />- <br />- <br />- <br />- <br />- <br />0.8 <br />08/22/02 <br />22.13 <br />0.00 <br />-12.55 <br />24,000 <br />9,600 <br />100 <br />2,200 <br />780 <br /><25 <br /><250 <br /><25 <br /><25 <br /><25 <br /><25 <br />0.9 <br />11/13/02 <br />23.00 <br />0.00 <br />-13.42 <br /><50,000 <br />8,400 <br /><500 <br />1,500 <br /><500 <br /><500 <br /><20,000 <br /><500 <br /><500 <br /><500 <br /><500 <br />- <br />02/12/03 <br />NS <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/29/03 <br />21.53 <br />0.00 <br />-11.95 <br />23,000 <br />8,000 <br /><50 <br />1,900 <br />430 <br /><120 <br /><5,000 <br /><250 <br /><250 <br /><250 <br /><25,000 <br /><120 <br />4.7 <br />08/04/03 <br />22.16 <br />0.00 <br />-12.58 <br />22,000 R <br />8,100 <br /><100 <br />1,700 <br />310 <br /><100 <br /><4,000 <br /><200 <br /><200 <br /><200 <br /><20,000 <br /><100 <br />3.3 <br />11/03/03 <br />23.29 <br />0.00 <br />-13.71 <br />18,000 <br />6,900 <br /><50 <br />1,700 <br />350 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.9 <br />02/09/04 <br />23.17 <br />0.00 <br />-13.59 <br />17,000 <br />7,100 <br /><120 <br />1,100 <br />300 <br /><120 <br />6,300 <br /><250 <br /><250 <br /><250 <br /><25,000 <br /><120 <br />3.3 <br />05/10/04 <br />22.17 <br />0.00 <br />-12.59 <br />18,000 <br />5,400 <br /><250 <br />910 <br /><250 <br /><250 <br /><10,000 <br /><500 <br /><500 <br /><500 <br /><50,000 <br /><250 <br />2.6 <br />08/09/04 <br />23.25 <br />0.00 <br />-13.67 <br /><25,000 <br />7,600 <br /><250 <br />1,600 <br />620 <br /><250 <br /><10,000 <br /><250 <br /><250 <br /><250 <br /><50,000 <br /><250 <br />1.7 <br />11/15/04 <br />24.13 <br />0.00 <br />-14.55 <br />19,000 <br />7,000 <br />62 <br />2,000 <br />660 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.4 <br />02/08/05 <br />22.83 <br />0.00 <br />-13.25 <br />16,000 <br />9,000 <br />150 <br />2,300 <br />1,300 <br /><100 <br /><4,000 <br /><200 <br /><200 <br /><200 <br /><20,000 <br /><100 <br />0.9 <br />05/09/05 <br />20.63 <br />0.00 <br />-11.05 <br />8,000 <br />3,300 <br /><50 <br />800 <br />390 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.7 <br />08/17/05 <br />21.32 <br />0.00 <br />-11.74 <br /><25,000 <br />6,200 <br /><250 <br />1,400 <br />600 <br /><250 <br /><10,000 <br /><250 <br /><250 <br /><250 <br /><50,000 <br /><250 <br />0.1 <br />11/17/05 <br />NS <br />- <br />- <br />- <br />02/06/06 <br />NS <br />05/08/06 <br />NS <br />08/07/06 <br />20.56 <br />0.00 <br />-10.98 <br />16,000 <br />7,100 <br /><50 <br />1,300 <br />130 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />1.8 <br />10/30/06 <br />11.21 <br />21.44 <br />0.00 <br />-10.23 <br />26,000 <br />5,800 <br />800 <br />2,600 <br />3,200 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />1.1 <br />01/29/07 <br />21.68 <br />0.00 <br />-10.47 <br />90,000 <br />4,600 <br />250 <br />2,200 <br />2,100 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.8 <br />05/07/07 <br />21.08 <br />0.00 <br />-9.87 <br />15,000 <br />4,800 <br />92 <br />2,400 <br />1,000 <br /><25 <br /><1,000 <br /><25 <br /><25 <br /><25 <br /><15,000 <br /><25 <br />0.1 <br />08/06/07 <br />21.70 <br />0.00 <br />-10.49 <br />27,000 <br />6,000 <br />540 <br />3,200 <br />3,000 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />1.9 <br />Well purged dry <br />11/01/07 <br />22.32 <br />0.00 <br />-11.11 <br />29,000 <br />4,900 <br />340 <br />2,800 <br />1,900 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />- <br />02/04/08 <br />20.88 <br />0.00 <br />-9.67 <br />37,000 <br />6,500 <br />350 <br />2,400 <br />2,100 <br /><25 <br /><500 <br /><25 <br /><25 <br /><25 <br /><5,000 <br /><25 <br />1.3 <br />05/05/08 <br />20.05 <br />0.00 <br />-8.84 <br />27,000 <br />3,100 <br />170 <br />2,500 <br />1,800 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />2.2 <br />08/04/08 <br />21.34 <br />0.00 <br />-10.13 <br />13,000 <br />3,700 <br />56 <br />1,600 <br />78 <br /><50 <br /><1,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />- <br />10/23/08 <br />22.43 <br />0.00 <br />-11.22 <br />16,000 <br />4,100 <br /><100 <br />790 <br />140 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.6 <br />01/27/09 <br />22.40 <br />0.00 <br />-11.19 <br />18,000 <br />5,700 <br /><100 <br />230 <br /><100 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />1.5 <br />04/27/09 <br />21.00 <br />0.00 <br />-9.79 <br />16,000 <br />4,600 <br /><100 <br />220 <br /><100 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.6 <br />07/22/09 <br />23.04 <br />0.00 <br />-11.83 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />12.9 <br />07/23/09 <br />- <br />- <br />11,000 <br />4,800 <br /><100 <br />210 <br /><100 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />- <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 10 of 116 Stantec <br />