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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 />CMW-6C 10/03/11 <br />NSP <br />12.07 <br />18.18 <br />0.00 <br />-6.11 <br />04/09/12 <br />17.91 <br />0.00 <br />-5.84 <br />04/10/12 <br />- <br />- <br />- <br />140 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.60 <br />1.3 <br />13 <br />0.53 <br />10/16/12 <br />18.75 <br />0.00 <br />-6.68 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.56 <br />10/19/12 <br />- <br />- <br />- <br />200 <br /><0.50 <br /><0.50 <br /><0.50 <br />0.54 <br />1.4 <br />19 <br />- <br />04/22/13 <br />17.22 <br />0.00 <br />-5.15 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.46 <br />04/24/13 <br />- <br />- <br />- <br />170 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />1.4 <br />15 <br />- <br />10/14/13 <br />18.77 <br />0.00 <br />-6.70 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/22/14 <br />18.13 <br />0.00 <br />-6.06 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.12 <br />04/23/14 <br />- <br />- <br />- <br />80 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />14 <br />- <br />10/20/14 <br />NSP <br />20.40 <br />0.00 <br />-8.33 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/27/15 <br />18.35 <br />0.00 <br />-6.28 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.33 <br />04/28/15 <br />- <br />- <br />- <br />110 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br />1.1 <br />11 <br />- <br />10/19/15 <br />NSP <br />20.48 <br />0.00 <br />-8.41 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/16 <br />18.21 <br />0.00 <br />-6.14 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.10 <br />04/13/16 <br />- <br />- <br />- <br />160 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br />1.0 <br />15 <br />- <br />12/12/16 <br />NSP <br />19.71 <br />0.00 <br />-7.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/17 <br />12.03 <br />14.21 <br />0.00 <br />-2.18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br /><50.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><1.5 <br /><0.50 <br /><5.0 <br />0.17 <br />10/24/17 <br />NSP <br />16.50 <br />0.00 <br />-4.47 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/07/18 <br />15.47 <br />0.00 <br />-3.44 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.50 <br />05/08/18 <br />- <br />- <br />- <br /><100 <br /><0.500 <br /><0.500 <br /><0.500 <br /><1.50 <br /><0.500 <br /><10.0 <br />- <br />05/28/19 <br />13.73 <br />0.00 <br />-1.70 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />2.12 <br />05/29/19 <br />- <br />- <br />- <br />130 <br /><1.00 <br /><1.00 <br /><1.00 <br /><3.00 <br /><1.00 <br /><5.00 <br />- <br />11/25/19 <br />NSP <br />15.80 <br />0.00 <br />-3.77 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/01/20 <br />15.23 <br />0.00 <br />-3.20 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Odor <br />04/02/20 <br />- <br />- <br />- <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />1.11 <br />11/09/20 <br />NSP <br />17.12 <br />0.00 <br />-5.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />odor <br />05/06/21 <br />16.06 <br />0.00 <br />-4.03 <br /><100 <br /><0.5 <br /><0.5 <br /><0.5 <br /><1.5 <br /><0.5 <br /><5 <br />0.85 <br />11/22/21 <br />NS <br />16.65 <br />0.00 <br />-4.62 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/05/22 <br />16.76 <br />0.00 <br />-4.73 <br />370 <br /><0.500 <br /><0.500 <br />0.56 <br /><1.50 <br />1.1 <br />27 <br />0.69 <br />11/23/22 <br />NS <br />17.98 <br />0.00 <br />-5.95 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />CMW-7A 02/04/08 <br />11.91 <br />19.08 <br />0.00 <br />-7.17 <br />380,000 160,000 <br />24,000 <br />35,000 <br />2,900 <br />14,000 <br />34,000 <br />4,900 <br /><5 <br />6.0 <br />05/05/08 <br />19.23 <br />0.00 <br />-7.32 <br />140,000 21,000 <br />27,000 <br />35,000 <br />3,300 <br />21,000 <br />45,000 <br />6,600 <br />460 <br />- <br />08/04/08 <br />19.99 <br />0.00 <br />-8.08 <br />83,000 13,000 <br />25,000 <br />31,000 <br />3,000 <br />17,000 <br />44,000 <br />4,900 <br /><25 <br /><25 <br />10/28/08 <br />20.91 <br />0.00 <br />-9.00 <br />120,000 33,000 <br />30,000 <br />37,000 <br />3,300 <br />18,000 <br />46,000 <br />4,900 <br />340 <br /><50 <br />01/27/09 <br />20.94 <br />0.00 <br />-9.03 <br />190,000 51,000 <br />27,000 <br />46,000 <br />3,200 <br />18,000 <br />44,000 <br />5,700 <br />310 <br /><25 <br />04/27/09 <br />19.58 <br />0.00 <br />-7.67 <br />190,000 20,000 <br />24,000 <br />29,000 <br />3,100 <br />19,000 <br />45,000 <br />4,800 <br />240 <br /><25 <br />10/14/09 <br />20.78 <br />0.00 <br />-8.87 <br />190,000 24,000 <br />24,000 <br />27,000 <br />2,700 <br />14,000 <br />- <br />- <br />- <br />- <br />05/24/10 <br />18.55 <br />0.00 <br />-6.64 <br />170,000 14,000 <br />23,000 <br />29,000 <br />2,800 <br />14,000 <br />40,000 <br />5,700 <br />140 <br />130 120 <br /><25 <br />10/04/10 <br />12.00 <br />19.45 <br />0.00 <br />-7.45 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />- <br />10/15/10 <br />- <br />- <br />- <br />140,000 <5,000 <br /><100 <br />24,000 <br />25,000 <br />3,000 <br />15,000 <br />45,000 <br />6,600 3.4 <br />130 <br />120 <500 <5,000 64 <br />04/04/11 <br />17.15 <br />0.00 <br />-5.15 <br />- - <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />- <br />- - - - <br />0.46 <br />A Zone <br />04/07/11 <br />- <br />- <br />- <br />160,000 <br />22,000 <br />25,000 <br />2,800 <br />14,000 <br />43,000 <br />13,000 <br /><70 <br />- <br />A Zone <br />10/03/11 <br />17.17 <br />0.00 <br />-5.17 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.40 <br />10/04/11 <br />- <br />- <br />130,000 <br />23,000 <br />25,000 <br />2,500 <br />13,000 <br />35,000 <br />15,000 <br /><70 <br />- <br 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