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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-4 06/10/93 <br />12.34 <br />40.68 <br />0.00 <br />-28.34 <br />110,000 <br />9,100 <br />17,000 <br />2,700 <br />13,000 <br />09/02/93 <br />41.59 <br />0.00 <br />-29.25 <br />110,000 <br />12,000 <br />21,000 <br />2,700 <br />13,000 <br />10/28/93 <br />41.78 <br />0.00 <br />-29.44 <br />90,000 <br />11,000 <br />20,000 <br />2,700 <br />13,000 <br />03/23/94 <br />41.23 <br />0.00 <br />-28.89 <br />38,000 <br />7,600 <br />12,000 <br />2,000 <br />10,000 <br />06/29/94 <br />41.06 <br />0.00 <br />-28.72 <br />43,000 <br />2,400 <br />2,800 <br />1,000 <br />5,800 <br />09/26/94 <br />42.26 <br />0.00 <br />-29.92 <br />60,000 <br />4,600 <br />7,400 <br />1,300 <br />6,000 <br />12/01/94 <br />42.41 <br />0.00 <br />-30.07 <br />- <br />- <br />- <br />- <br />- <br />02/16/95 <br />39.25 <br />0.00 <br />-26.91 <br />77,000 <br />9,200 <br />13,000 <br />1,700 <br />8,000 <br />(58) <br />05/17/95 <br />34.65 <br />0.00 <br />-22.31 <br />89,000 <br />11,000 <br />17,000 <br />2,100 <br />9,900 <br />(58) <br />08/15/95 <br />34.30 <br />0.00 <br />-21.96 <br />74,000 <br />6,400 <br />10,000 <br />1,600 <br />7,600 <br />(59) <br />11/29/95 <br />34.42 <br />0.00 <br />-22.08 <br />92,000 <br />7,800 <br />12,000 <br />1,700 <br />7,600 <br />(59) <br />02/27/96 <br />31.67 <br />0.00 <br />-19.33 <br />61,000 <br />7,600 <br />8,500 <br />1,600 <br />6,600 <br />05/15/96 <br />30.09 <br />0.00 <br />-17.75 <br />64,000 <br />8,100 <br />8,600 <br />1,600 <br />6,400 <br /><500 <br />(58) <br />08/22/96 <br />30.72 <br />0.00 <br />-18.38 <br />79,000 <br />9,200 <br />11,000 <br />1,800 <br />7,400 <br /><700 <br />11/25/96 <br />30.78 <br />0.00 <br />-18.44 <br />72,000 <br />8,800 <br />9,300 <br />1,600 <br />6,100 <br /><500 <br />02/24/97 <br />26.82 <br />0.00 <br />-14.48 <br />40,000 <br />6,700 <br />2,200 <br />900 <br />2,600 <br /><600 <br />05/19/97 <br />26.67 <br />0.00 <br />-14.33 <br />57,000 <br />8,700 <br />6,700 <br />1,300 <br />5,000 <br /><600 <br />08/21/97 <br />27.74 <br />0.00 <br />-15.40 <br />48,000 <br />7,200 <br />5,000 <br />1,200 <br />3,900 <br /><1,000 <br />- <br />- <br />- <br />- <br />(38) <br />11/17/97 <br />28.79 <br />0.00 <br />-16.45 <br />12,000 <br />4,800 <br />180 <br />370 <br />280 <br />58 <br /><1,700 <br /><33 <br /><33 <br /><33 <br />(59) <br />02/09/98 <br />26.27 <br />0.00 <br />-13.93 <br />17,000 <br />5,200 <br />540 <br />690 <br />730 <br /><500 <br />- <br />- <br />- <br />- <br />(59) <br />05/22/98 <br />22.21 <br />0.00 <br />-9.87 <br />17,000 <br />5,400 <br />610 <br />660 <br />720 <br /><100 <br /><10,000 <br /><100 <br /><100 <br /><100 <br />(58) <br />08/12/98 <br />22.34 <br />0.00 <br />-10.00 <br />19,000 <br />5,900 <br />890 <br />680 <br />910 <br /><20 <br /><2,000 <br /><20 <br /><20 <br /><20 <br />(58) <br />11/09/98 <br />23.42 <br />0.00 <br />-11.08 <br />24,000 <br />6,300 <br />720 <br />690 <br />880 <br />46 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />02/17/99 <br />22.65 <br />0.00 <br />-10.31 <br />21,000 <br />7,000 <br />950 <br />910 <br />1,000 <br />67 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />05/25/99 <br />22.02 <br />0.00 <br />-9.68 <br />54,000 <br />9,900 <br />4,900 <br /><100 <br />4,600 <br />65 <br />210 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />08/18/99 <br />23.09 <br />0.00 <br />-10.75 <br />34,000 <br />7,400 <br />4,200 <br />1,300 <br />3,600 <br />57 <br />210 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />12/17/99 <br />23.98 <br />0.00 <br />-11.64 <br />15,000 <br />5,000 <br />86 <br />540 <br />290 <br />59 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />02/22/00 <br />23.26 <br />0.00 <br />-10.92 <br />1,800 <br />480 <br />210 <br />74 <br />180 <br />62 <br />260 <br /><2.0 <br /><2.0 <br /><2.0 <br />(58) <br />06/22/00 <br />21.97 <br />0.00 <br />-9.63 <br />12,000 <br />4,200 <br />35 <br />290 <br />220 <br />49 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(59) <br />08/30/00 <br />22.99 <br />0.00 <br />-10.65 <br />27,000 <br />8,200 <br />690 <br />750 <br />1,200 <br />90 <br />390 <br /><2.0 <br /><2.0 <br /><2.0 <br />2.6 <br />11/21/00 <br />23.69 <br />0.00 <br />-11.35 <br />13,200 N <br />4,500 <br /><50 <br />440 <br />310 <br />58 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />02/15/01 <br />23.78 <br />0.00 <br />-11.44 <br />24,800 N <br />6,200 <br />190 <br />790 <br />570 <br />55 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />1.0 <br />05/17/01 <br />23.01 <br />0.00 <br />-10.67 <br />16,600 N <br />4,700 <br />120 <br />500 <br />510 <br />58 <br /><1,000 <br /><10 <br /><10 <br /><10 <br /><10 <br />1.6 <br />08/16/01 <br />24.34 <br />0.00 <br />-12.00 <br />20,000 <br />4,900 <br />110 <br />830 <br />910 <br /><100 <br /><10,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />1.9 <br />12/06/01 <br />25.45 <br />0.00 <br />-13.11 <br /><50,000 <br />6,200 <br /><500 <br />800 <br />660 <br /><500 <br /><5,000 <br /><500 <br /><500 <br /><500 <br /><500 <br />1.0 <br />02/14/02 <br />23.89 <br />0.00 <br />-11.55 <br />20,000 <br />5,800 <br />200 <br />1,100 <br />890 <br /><100 <br /><1,000 <br /><100 <br /><100 <br /><100 <br /><100 <br />1.0 <br />06/13/02 <br />24.15 <br />0.00 <br />-11.81 <br />21,000 <br />4,400 <br />170 <br />860 <br />790 <br /><50 <br />- <br />- <br />- <br />- <br />- <br />0.8 <br />08/22/02 <br />25.18 <br />0.00 <br />-12.84 <br />32,000 <br />9,700 <br />800 <br />1,600 <br />1,700 <br />100 <br />310 <br /><25 <br /><25 <br /><25 <br /><25 <br />0.8 <br />11/13/02 <br />26.10 <br />0.00 <br />-13.76 <br /><50,000 <br />15,000 <br /><500 <br />1,900 <br /><500 <br /><500 <br /><20,000 <br /><500 <br /><500 <br /><500 <br /><500 <br />- <br />02/12/03 <br />26.01 <br />0.00 <br />-13.67 <br /><50 <br />14 <br /><0.50 <br />1.0 <br /><0.50 <br /><0.50 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><40 <br /><0.50 <br />2.1 <br />05/29/03 <br />24.81 <br />0.00 <br />-12.47 <br />14,000 <br />4,400 <br /><25 <br />490 <br />120 <br /><120 <br /><5,000 <br /><250 <br /><250 <br /><250 <br /><25,000 <br /><120 <br />4.3 <br />08/04/03 <br />25.21 <br />0.00 <br />-12.87 <br />20,000 R <br />7,100 <br /><100 <br />810 <br />140 <br /><100 <br /><4,000 <br /><200 <br /><200 <br /><200 <br /><20,000 <br /><100 <br />1.7 <br />11/03/03 <br />25.96 <br />0.00 <br />-13.62 <br /><50 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 />1.1 <br />02/09/04 <br />25.62 <br />0.00 <br />-13.28 <br />11,000 <br />4,100 <br /><50 <br />180 <br />110 <br />80 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.4 <br />05/10/04 <br />25.20 <br />0.00 <br />-12.86 <br />4,800 <br />910 <br /><50 <br /><50 <br /><50 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.0 <br />08/09/04 <br />1 <br />26.45 <br />0.00 <br />-14.11 <br />1 28,000 <br />8,200 <br />160 <br />1,200 <br />630 <br />100 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />1.2 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 12 of 116 Stantec <br />