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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-6 11/17/97 <br />8.93 <br />24.70 <br />0.00 <br />-15.77 <br />42,000 <br />5,400 <br />2,100 <br />1,100 <br />6,600 <br /><67 <br /><3,300 <br /><67 <br /><67 <br /><67 <br />(41) <br />02/09/98 <br />22.01 <br />0.00 <br />-13.08 <br />62,000 <br />12,000 <br />7,000 <br />1,300 <br />7,400 <br /><1,000 <br />- <br />- <br />- <br />- <br />(43) <br />05/22/98 <br />18.14 <br />0.00 <br />-9.21 <br />66,000 <br />9,700 <br />4,600 <br />1,200 <br />6,800 <br /><100 <br /><10,000 <br /><100 <br /><100 <br /><100 <br />(42) <br />08/12/98 <br />18.42 <br />0.00 <br />-9.49 <br />55,000 <br />7,700 <br />2,300 <br />1,200 <br />6,800 <br /><200 <br /><20,000 <br /><200 <br /><200 <br /><200 <br />(42) <br />11/09/98 <br />19.73 <br />0.00 <br />-10.80 <br />16,000 <br />1,100 <br />320 <br />270 <br />1,200 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(42) <br />02/17/99 <br />18.79 <br />0.00 <br />-9.86 <br />54,000 <br />9,900 <br />2,700 <br />1,500 <br />8,300 <br /><2.0 <br /><200 <br />8.8 <br /><2.0 <br /><2.0 <br />(45) <br />05/25/99 <br />18.12 <br />0.00 <br />-9.19 <br />44,000 <br />7,000 <br />1,900 <br />1,500 <br />8,300 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(45) <br />08/18/99 <br />19.26 <br />0.00 <br />-10.33 <br />41,000 <br />6,300 <br />1,600 <br />1,500 <br />7,500 <br />4.8 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(45) <br />12/17/99 <br />20.08 <br />0.00 <br />-11.15 <br />4,100 <br />540 <br />150 <br />120 <br />760 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(45) <br />02/22/00 <br />19.29 <br />0.00 <br />-10.36 <br />38,000 <br />8,400 <br />1,800 <br />1,300 <br />6,400 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(45) <br />06/22/00 <br />18.15 <br />0.00 <br />-9.22 <br />2,200 <br /><2.0 <br />5.1 <br />15 <br />14 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(48) <br />08/30/00 <br />19.12 <br />0.00 <br />-10.19 <br />38,000 <br />5,300 <br />1,300 <br />1,300 <br />5,600 <br /><2.0 <br /><200 <br />4.3 <br /><2.0 <br /><2.0 <br />25 <br />11/21/00 <br />19.83 <br />0.00 <br />-10.90 <br />30,100 N <br />5,100 <br />1,100 <br />1,200 <br />5,200 <br /><2.0 <br /><200 <br />4.8 <br /><2.0 <br /><2.0 <br />24 <br />02/15/01 <br />19.72 <br />0.00 <br />-10.79 <br />58,200 N <br />5,900 <br />1,400 <br />1,500 <br />5,800 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />12 <br />1.1 <br />05/17/01 <br />19.11 <br />0.00 <br />-10.18 <br />31,700 N <br />5,200 <br />1,100 <br />1,300 <br />5,000 <br /><40 <br /><4,000 <br /><40 <br /><40 <br /><40 <br /><40 <br />0.9 <br />08/16/01 <br />20.50 <br />0.00 <br />-11.57 <br />39,000 <br />5,000 <br />1,300 <br />1,600 <br />5,500 <br /><50 <br /><5,000 <br /><50 <br /><50 <br /><50 <br /><50 <br />0.7 <br />12/06/01 <br />21.50 <br />0.00 <br />-12.57 <br />28,000 <br />5,800 <br /><100 <br />1,300 <br />4,800 <br /><100 <br /><1,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />0.6 <br />02/14/02 <br />19.80 <br />0.00 <br />-10.87 <br />32,000 <br />4,100 <br />1,100 <br />1,400 <br />4,800 <br /><50 <br /><500 <br /><50 <br /><50 <br /><50 <br /><50 <br />0.8 <br />06/13/02 <br />20.20 <br />0.00 <br />-11.27 <br />34,000 <br />3,600 <br />1,100 <br />1,300 <br />4,000 <br /><25 <br />- <br />- <br />- <br />- <br />- <br />0.9 <br />08/22/02 <br />21.23 <br />0.00 <br />-12.30 <br />27,000 <br />5,000 <br />950 <br />1,100 <br />4,500 <br /><25 <br /><250 <br /><25 <br /><25 <br /><25 <br /><25 <br />1.1 <br />11/13/02 <br />22.23 <br />0.00 <br />-13.30 <br />37,000 <br />5,000 <br />900 <br />1,400 <br />4,600 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br />150 <br />- <br />02/12/03 <br />22.48 <br />0.00 <br />-13.55 <br />31,000 <br />4,200 <br />900 <br />1,200 <br />5,700 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><4,000 <br /><50 <br />1.0 <br />05/29/03 <br />20.58 <br />0.00 <br />-11.65 <br />26,000 <br />4,000 <br />1,000 <br />1,100 <br />5,200 <br /><120 <br /><5,000 <br /><250 <br /><250 <br /><250 <br /><25,000 <br /><120 <br />4.7 <br />08/04/03 <br />21.26 <br />0.00 <br />-12.33 <br />27,000 <br />4,100 <br />870 <br />730 <br />6,000 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.5 <br />11/03/03 <br />22.22 <br />0.00 <br />-13.29 <br />220 R <br /><2.5 R <br /><2.5 R <br /><2.5 R <br /><2.5 R <br /><2.5 R <br /><100 R <br /><5.0 R <br /><5.0 R <br /><5.0 R <br /><500 R <br /><2.5 R <br />2.1 <br />02/09/04 <br />22.04 <br />0.00 <br />-13.11 <br />25,000 <br />3,900 <br />740 <br />670 <br />4,800 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.5 <br />05/10/04 <br />21.25 <br />0.00 <br />-12.32 <br />17,000 <br />5,600 <br /><250 <br />890 <br /><250 <br /><250 <br /><10,000 <br /><500 <br /><500 <br /><500 <br /><50,000 <br /><250 <br />3.1 <br />08/09/04 <br />22.38 <br />0.00 <br />-13.45 <br />36,000 <br />5,200 <br />790 J <br />1,500 <br />5,100 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><20,000 <br /><100 <br />1.0 <br />11/15/04 <br />23.22 <br />0.00 <br />-14.29 <br />29,000 J <br />5,000 <br />820 <br />1,500 <br />4,900 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.2 <br />02/08/05 <br />21.81 <br />0.00 <br />-12.88 <br />23,000 <br />4,800 <br />580 <br />1,300 <br />3,700 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.0 <br />05/09/05 <br />19.63 <br />0.00 <br />-10.70 <br />20,000 <br />5,400 <br />500 <br />1,600 <br />4,100 <br /><100 <br /><4,000 <br /><200 <br /><200 <br /><200 <br /><20,000 <br /><100 <br />0.4 <br />08/17/05 <br />20.55 <br />0.00 <br />-11.62 <br />29,000 <br />5,100 <br />540 <br />1,300 <br />3,500 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><20,000 <br />120 <br />0.0 <br />11/07/05 <br />21.42 <br />0.00 <br />-12.49 <br />32,000 J <br />4,700 <br />560 <br />1,300 <br />3,500 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />1.0 <br />02/06/06 <br />20.31 <br />0.00 <br />-11.38 <br />28,000 <br />8,500 <br />560 <br />1,400 <br />3,300 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br />170 <br />1.3 <br />05/08/06 <br />17.85 <br />0.00 <br />-8.92 <br />33,000 <br />9,400 <br />610 <br />1,500 <br />3,500 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.6 <br />08/07/06 <br />18.18 <br />0.00 <br />-9.25 <br />25,000 <br />7,900 <br />450 <br />1,500 <br />2,900 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />2.8 <br />10/30/06 <br />8.92 <br />19.08 <br />0.00 <br />-10.16 <br />25,000 <br />5,500 <br />390 <br />1,400 <br />2,900 <br /><100 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.9 <br />01/29/07 <br />19.30 <br />0.00 <br />-10.38 <br />20,000 <br />5,000 <br />400 <br />1,600 <br />3,200 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.7 <br />05/07/07 <br />18.77 <br />0.00 <br />-9.85 <br />25,000 <br />5,300 <br />400 <br />1,500 <br />3,000 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.6 <br />08/06/07 <br />19.40 <br />0.00 <br />-10.48 <br />25,000 <br />5,100 <br />410 <br />1,700 <br />3,400 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />4.7 <br />11/01/07 <br />19.97 <br />0.00 <br />-11.05 <br />25,000 <br />4,200 <br />350 <br />1,400 <br />2,800 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.8 <br />02/04/08 <br />18.46 <br />0.00 <br />-9.54 <br />38,000 <br />4,200 <br />360 <br />1,700 <br />3,100 <br /><50 <br /><1,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />0.4 <br />05/05/08 <br />17.98 <br />0.00 <br />-9.06 <br />33,000 <br />4,200 <br />340 <br />1,400 <br />2,500 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />1.0 <br />08/04/08 <br />18.97 <br />0.00 <br />-10.05 <br />34,000 <br />4,300 <br />370 <br />1,500 <br />2,700 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.3 <br />10/23/08 <br />19.84 <br />0.00 <br />-10.92 <br />33,000 <br />3,800 <br />270 <br />1,200 <br />2,200 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />1.4 <br />01/27/09 <br />1 <br />20.03 <br />0.00 <br />-11.11 <br />1 34,000 <br />4,500 <br />350 <br />1,500 <br />2,600 <br /><100 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />0.4 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 16 of 116 Stantec <br />