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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-4 11/15/04 <br />12.34 <br />27.38 <br />0.00 <br />-15.04 <br />31,000 J <br />8,900 <br /><250 <br />1,300 <br />560 <br /><250 <br /><10,000 <br /><500 <br /><500 <br /><500 <br /><50,000 <br /><250 <br />0.2 <br />02/08/05 <br />26.13 <br />0.00 <br />-13.79 <br />29,000 J <br />12,000 <br /><250 <br />3,100 J <br />1,400 J <br /><250 <br /><10,000 <br /><500 <br /><500 <br /><500 <br /><50,000 <br /><250 <br />3.0 <br />05/09/05 <br />23.83 <br />0.00 <br />-11.49 <br />22,000 <br />9,200 <br /><250 <br />1,300 <br />330 <br /><250 <br /><10,000 <br /><500 <br /><500 <br /><500 <br /><50,000 <br /><250 <br />0.4 <br />08/17/05 <br />24.66 <br />0.00 <br />-12.32 <br />23,000 <br />9,600 <br />93 <br />1,300 <br />230 <br />150 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />0.2 <br />10/03/05 DEST <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />AMW-5 01/20/93 <br />9.28 <br />41.12 <br />0.00 <br />-31.84 <br />01/26/93 <br />40.77 <br />0.00 <br />-31.49 <br />03/10/93 <br />39.11 <br />0.00 <br />-29.83 <br />49,000 <br />9,200 <br />6,600 <br />830 <br />4,200 <br />06/10/93 <br />37.34 <br />0.00 <br />-28.06 <br />37,000 <br />6,400 <br />4,100 <br />870 <br />3,800 <br />09/02/93 <br />38.23 <br />0.00 <br />-28.95 <br />51,000 <br />7,900 <br />6,600 <br />990 <br />4,800 <br />10/28/93 <br />38.46 <br />0.00 <br />-29.18 <br />60,000 <br />9,200 <br />9,000 <br />1,200 <br />6,700 <br />03/23/94 <br />37.97 <br />0.00 <br />-28.69 <br />58,000 <br />9,000 <br />8,900 <br />940 <br />5,600 <br />06/29/94 <br />37.79 <br />0.00 <br />-28.51 <br />50,000 <br />7,300 <br />7,500 <br />920 <br />4,700 <br />09/26/94 <br />39.05 <br />0.00 <br />-29.77 <br />76,000 <br />7,300 <br />8,200 <br />770 <br />4,200 <br />12/01/94 <br />39.22 <br />0.00 <br />-29.94 <br />110,000 <br />8,700 <br />9,200 <br />800 <br />4,800 <br />02/16/95 <br />35.78 <br />0.00 <br />-26.50 <br />180,000 <br />8,500 <br />15,000 <br />2,200 <br />12,000 <br />(39) <br />05/17/95 <br />31.23 <br />0.00 <br />-21.95 <br />22,000 <br />3,400 <br />2,100 <br />390 <br />2,400 <br />(55) <br />08/15/95 <br />30.83 <br />0.00 <br />-21.55 <br />32,000 <br />4,200 <br />3,500 <br />410 <br />2,500 <br />(55) <br />11/29/95 <br />31.00 <br />0.00 <br />-21.72 <br />52,000 <br />8,300 <br />8,100 <br />810 <br />4,100 <br />(55) <br />02/27/96 <br />28.19 <br />0.00 <br />-18.91 <br />20,000 <br />3,200 <br />1,900 <br />440 <br />1,800 <br />05/15/96 <br />26.66 <br />0.00 <br />-17.38 <br />43,000 <br />6,500 <br />5,000 <br />790 <br />3,400 <br /><500 <br />(55) <br />08/22/96 <br />27.14 <br />0.00 <br />-17.86 <br />58,000 <br />8,700 <br />8,200 <br />880 <br />4,500 <br /><500 <br />11/25/96 <br />27.33 <br />0.00 <br />-18.05 <br />53,000 <br />7,000 <br />6,100 <br />800 <br />4,000 <br /><600 <br />02/24/97 <br />23.30 <br />0.00 <br />-14.02 <br />40,000 <br />4,400 <br />4,700 <br />590 <br />3,100 <br /><700 <br />05/19/97 <br />23.21 <br />0.00 <br />-13.93 <br />43,000 <br />5,500 <br />4,300 <br />660 <br />3,800 <br /><300 <br />08/21/97 <br />24.29 <br />0.00 <br />-15.01 <br />32,000 <br />5,200 <br />3,900 <br />560 <br />3,100 <br /><1,000 <br />(54) <br />11/17/97 <br />25.33 <br />0.00 <br />-16.05 <br />10,000 <br />1,700 <br />1,300 <br />210 <br />1,100 <br /><500 <br />(55) <br />02/09/98 <br />22.62 <br />0.00 <br />-13.34 <br />4,700 <br />740 <br />520 <br />110 <br />520 <br /><25 <br />(55) <br />05/21/98 <br />18.76 <br />0.00 <br />-9.48 <br />1,400 <br />170 <br />150 <br />26 <br />130 <br /><100 <br /><10,000 <br /><100 <br /><100 <br /><100 <br />(54) <br />08/12/98 <br />19.96 <br />0.00 <br />-10.68 <br />2,500 <br />470 <br />250 <br />64 <br />280 <br /><20 <br /><2,000 <br /><20 <br /><20 <br /><20 <br />(54) <br />11/09/98 <br />20.09 <br />0.00 <br />-10.81 <br />14,000 <br />2,500 <br />1,900 <br />340 <br />1,600 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(54) <br />02/17/99 <br />19.26 <br />0.00 <br />-9.98 <br />3,100 <br />440 <br />290 <br />86 <br />390 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(54) <br />05/25/99 <br />18.65 <br />0.00 <br />-9.37 <br />12,000 <br />2,100 <br />1,100 <br /><100 <br />1,400 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(54) <br />08/18/99 <br />19.80 <br />0.00 <br />-10.52 <br />34,000 <br />24,000 <br />1,100 <br />340 <br />1,500 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(54) <br />12/17/99 <br />20.63 <br />0.00 <br />-11.35 <br /><50 <br />3.4 <br />0.62 <br />0.57 <br />2.0 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(54) <br />02/22/00 <br />19.42 <br />0.00 <br />-10.14 <br />3,300 <br />940 <br />170 <br />130 <br />420 <br /><2.0 <br />- <br />- <br />- <br />- <br />(54) <br />06/22/00 <br />18.58 <br />0.00 <br />-9.30 <br />1,200 <br />170 <br />39 <br />31 <br />110 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br />(55) <br />08/30/00 <br />19.62 <br />0.00 <br />-10.34 <br />33,000 <br />3,500 <br />3,000 <br />660 <br />4,000 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />11/21/00 <br />20.37 <br />0.00 <br />-11.09 <br />1,920 N <br />390 <br />36 <br />74 <br />230 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />02/15/01 <br />20.42 <br />0.00 <br />-11.14 <br />357 N <br />27 <br />5.2 <br />4.9 <br />18 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />0.9 <br />05/17/01 <br />19.65 <br />0.00 <br />-10.37 <br />1,300 N <br />240 <br />19 <br />38 <br />88 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />1.1 <br />08/16/01 <br />21.00 <br />0.00 <br />-11.72 <br />3,400 <br />540 <br />42 <br />43 <br />230 <br /><2.0 <br /><200 <br /><2.0 <br /><2.0 <br /><2.0 <br /><2.0 <br />2.6 <br />12/06/01 <br />21.95 <br />0.00 <br />-12.67 <br />1,400 <br />230 <br />20 <br />44 <br />99 <br /><5.0 <br /><50 <br /><5.0 <br /><5.0 <br /><5.0 <br /><5.0 <br />1.2 <br />02/14/02 <br />20.49 <br />0.00 <br />-11.21 <br />1,300 <br />180 <br />23 <br />48 <br />75 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.5 <br />06/13/02 <br />20.78 <br />0.00 <br />-11.50 <br />1,700 <br />200 <br />16 <br />51 <br />91 <br /><1.0 <br />- <br />- <br />- <br />- <br />- <br />0.8 <br />08/22/02 <br />1 <br />21.83 <br />0.00 <br />-12.55 <br />1 7,300 <br />960 <br />270 <br />260 <br />1,100 <br /><10 <br /><100 <br /><10 <br /><10 <br /><10 <br /><10 <br />0.9 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 13 of 116 Stantec <br />