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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 />SMW-19-81 05/09/05 <br />9.50 <br />21.57 <br />0.00 <br />-12.07 <br />980 <br />360 <br />230 <br />28 <br />19 <br />80 <br />280 <br />180 <br />- <br />- <br />- <br />- <br /><2.5 <br /><2.5 <br />08/08/05 <br />22.45 <br />0.00 <br />-12.95 <br />590 <br />280 <br />140 <br />22 <br />11 <br />38 <br />300 <br />200 <br /><8.0 <br /><8.0 <br /><8.0 <br /><200 <br /><2.0 <br /><2.0 <br />11/07/05 <br />23.62 <br />0.00 <br />-14.12 <br />570 <br />160 <br />200 <br />8.7 <br />6.9 <br />37 <br />230 <br />200 <br />- <br />- <br />- <br />- <br /><2.0 <br /><2.0 <br />02/06/06 <br />22.53 <br />0.00 <br />-13.03 <br />800 <br />300 <br />160 <br />4.7 <br />7.6 <br />26 <br />250 <br />150 <br /><2.0 <br /><2.0 <br />05/08/06 <br />20.05 <br />0.00 <br />-10.55 <br />300 N <br />1,100 <br />47 <br />1.1 <br />3.7 <br />2.3 <br />230 <br />110 <br /><0.50 <br /><1.0 <br />08/07/06 <br />20.29 <br />0.00 <br />-10.79 <br />290 <br />290 <br />10 <br /><0.50 <br /><0.50 <br /><1.0 <br />160 <br /><5.0 <br /><2.0 <br /><2.0 <br /><2.0 <br /><50 <br /><0.50 <br /><0.50 <br />10/30/06 <br />21.21 <br />0.00 <br />-11.71 <br />420 <br />530 <br />92 <br />1.3 <br />3.0 <br />1.1 <br />150 <br />8.1 <br />- <br />- <br />- <br />- <br /><0.50 <br /><0.50 <br />01/29/07 <br />21.13 <br />0.00 <br />-11.63 <br />660 <br />430 <br />180 <br />1.6 <br />0.64 <br />4.1 <br />160 <br />17 <br /><0.50 <br /><0.50 <br />05/07/07 <br />20.77 <br />0.00 <br />-11.27 <br />160 N <br />300 <br />62 <br />1.2 <br />0.24 <br />2.7 <br />98 <br /><10 <br /><0.50 <br /><1.0 <br />08/06/07 <br />21.29 <br />0.00 <br />-11.79 <br />98 N <br />890 N <br />33 <br />0.59 <br />0.32 <br />1.3 <br />60 <br />7.0 <br />0.50 <br /><2.0 <br /><2.0 <br /><100 <br /><0.50 <br /><1.0 <br />11/05/07 <br />21.79 <br />0.00 <br />-12.29 <br />210 N <br />320 N <br />100 <br />0.89 <br />1.2 <br />2.8 <br />56 <br />20 <br />- <br />- <br />- <br />- <br /><0.50 <br /><1.0 <br />02/04/08 <br />20.69 <br />0.00 <br />-11.19 <br />830 <br />400 N <br />480 <br /><5.0 <br /><5.0 <br /><5.0 <br />53 <br /><50 <br /><2.5 <br /><5.0 <br />05/05/08 <br />20.85 <br />0.00 <br />-11.35 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/06/08 <br />- <br />- <br />- <br />1,300 <br />550 N <br />570 <br />6.9 <br /><5.0 <br />11 <br />65 <br /><50 <br /><10 <br /><10 <br /><10 <br /><500 <br /><2.5 <br /><5.0 <br />08/04/08 <br />21.08 <br />0.00 <br />-11.58 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />08/05/08 <br />- <br />- <br />- <br />12,000 <br />500 N <br />5,100 <br /><50 <br /><50 <br />52 <br />200 <br /><500 <br /><100 <br /><100 <br /><100 <br /><5,000 <br /><25 <br /><50 <br />10/28/08 <br />21.89 <br />0.00 <br />-12.39 <br />11,000 <br />1,000 N <br />6,500 <br /><100 <br /><100 <br /><100 <br />280 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />01/27/09 <br />21.79 <br />0.00 <br />-12.29 <br />9,100 <br />420 N <br />4,100 <br /><100 <br /><100 <br /><100 <br />240 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />04/27/09 <br />20.42 <br />0.00 <br />-10.92 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/28/09 <br />- <br />- <br />- <br />5,900 <br />790 N <br />2,600 <br /><20 <br /><20 <br /><20 <br />330 <br /><200 <br /><40 <br /><40 <br /><40 <br /><2,000 <br /><10 <br /><20 <br />10/14/09 <br />21.46 <br />0.00 <br />-11.96 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/15/09 <br />- <br />- <br />- <br />7,600 <br />680 N <br />3,200 <br /><20 <br /><20 <br /><20 <br />340 <br /><200 <br /><40 <br /><40 <br /><40 <br /><2,000 <br /><10 <br /><20 <br />05/24/10 <br />18.89 <br />0.00 <br />-9.39 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />05/25/10 <br />- <br />- <br />- <br />6,400 <br />700 N <br />3,400 <br /><20 <br /><20 <br /><20 <br />370 <br /><200 <br /><40 <br /><40 <br /><40 <br /><2,000 <br /><10 <br /><20 <br />10/04/10 <br />11.90 <br />20.28 <br />0.00 <br />-8.38 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/16/10 <br />- <br />- <br />- <br />3,100 <br /><200 <br />1,300 <br />5.7 <br /><2.5 <br />9.9 <br />22 <br />35 <br /><2.5 <br /><2.5 <br /><2.5 <br /><25 <br /><2.5 <br />- <br />04/04/11 <br />17.80 <br />0.00 <br />-5.90 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.24 <br />C Zone <br />04/05/11 <br />- <br />- <br />- <br />8,500 <br />4,600 <br />25 <br /><10 <br />25 <br />500 <br />160 <br />- <br />C Zone <br />10/03/11 <br />18.54 <br />0.00 <br />-6.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.64 <br />10/04/11 <br />- <br />- <br />- <br />5,100 <br />2,900 <br />15 <br /><6.0 <br />16 <br />590 <br />200 <br />- <br />04/09/12 <br />18.40 <br />0.00 <br />-6.50 <br />9,000 <br />3,800 <br />15 <br /><7.0 <br />24 <br />710 <br />200 <br />0.91 <br />10/16/12 <br />18.97 <br />0.00 <br />-7.07 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.77 <br />10/19/12 <br />- <br />- <br />- <br />8,200 <br />3,400 <br />14 <br /><7.0 <br />22 <br />610 <br />180 <br />- <br />04/22/13 <br />17.37 <br />0.00 <br />-5.47 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.61 <br />04/25/13 <br />- <br />- <br />- <br />5,800 <br />2,600 <br />13 <br />8.3 <br />22 <br />380 <br />100 <br />- <br />10/14/13 <br />18.81 <br />0.00 <br />-6.91 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.39 <br />10/15/13 <br />- <br />- <br />- <br />11,000 <br />4,700 <br />19 <br />6.6 <br />30 <br />1,000 <br />200 <br />- <br />04/22/14 <br />18.26 <br />0.00 <br />-6.36 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />2.94 <br />04/24/14 <br />- <br />- <br />- <br />12,000 <br />4,900 <br />20 <br /><8.0 <br />36 <br />1,200 <br />240 <br />- <br />10/20/14 <br />20.01 <br />0.00 <br />-8.11 <br />8,100 <br />3,200 <br />14 <br /><8.0 <br />28 <br />590 <br />150 <br />0.50 <br />04/27/15 <br />18.55 <br />0.00 <br />-6.65 <br />16,000 <br />6,500 <br />24 <br />11 <br />27 <br />1,400 <br />230 <br />0.54 <br />10/19/15 <br />20.58 <br />0.00 <br />-8.68 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.43 <br />10/22/15 <br />- <br />- <br />- <br />13,000 <br />7,100 <br />29 <br />12 <br />39 <br />1,400 <br />280 <br />- <br />04/11/16 <br />18.43 <br />0.00 <br />-6.53 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.35 <br />04/14/16 <br />- <br />- <br />- <br />1,900 <br />680 <br />6.4 <br />2.4 <br />18 <br />72 <br />35 <br />- <br />12/12/16 <br />1 <br />20.73 <br />0.00 <br />-8.83 <br />1 - <br />- <br />- <br />- <br />- <br />- <br />- <br />0.22 <br />stockton_charter_ way_comingles_plume_4g22.xlsm Page 98 of 116 Stantec <br />