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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-10-81 01/29/07 <br />9.82 <br />21.80 <br />0.00 <br />-11.98 <br />23,000 <br />1,400 - <br />11,000 <br />370 <br />200 <br />280 <br /><50 <br /><500 <br /><200 <br /><200 <br /><200 <br />- - <br /><50 <br /><50 <br />- <br />05/07/07 <br />22.10 <br />0.00 <br />-12.28 <br />26,000 <br />7,800 <br />16,000 <br />240 <br />550 <br />630 <br />38 <br /><200 <br /><40 <br /><40 <br /><40 <br /><10 <br /><20 <br />08/06/07 <br />21.59 <br />0.00 <br />-11.77 <br />12,000 N <br />1,200 <br />6,600 <br />130 <br />150 <br />120 <br />32 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><50 <br /><100 <br />11/05/07 <br />27.25 <br />0.00 <br />-17.43 <br />13,000 <br />1,600 N <br />7,700 <br />140 <br />120 <br />175 k <br />39 <br /><500 <br /><100 <br /><100 <br /><100 <br /><25 <br /><50 <br />02/04/08 <br />22.93 <br />0.00 <br />-13.11 <br />22,000 <br />1,300 N <br />14,000 <br />160 <br />270 <br />510 <br /><50 <br /><500 <br /><100 <br /><100 <br /><100 <br /><25 <br /><50 <br />05/05/08 <br />21.60 <br />0.00 <br />-11.78 <br />14,000 <br />1,100 N <br />17,000 <br /><200 <br />270 <br />400 <br /><200 <br /><2,000 <br /><400 <br /><400 <br /><400 <br /><20,000 <br /><100 <br /><200 <br />08/04/08 <br />21.40 <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 />23,000 <br />670 N <br />9,800 <br /><100 <br />150 <br />160 <br /><100 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />10/28/08 <br />22.32 <br />0.00 <br />-12.50 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/29/08 <br />- <br />- <br />- <br />31,000 <br />1,200 N <br />13,000 <br /><100 <br /><100 <br />160 <br /><100 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />01/27/09 <br />22.43 <br />0.00 <br />-12.61 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />01/28/09 <br />- <br />- <br />- <br />30,000 <br />1,000 N <br />16,000 <br /><100 <br />160 <br />210 <br /><100 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />04/27/09 <br />21.81 <br />0.00 <br />-11.99 <br />60,000 <br />660 N <br />15,000 <br />190 <br />250 <br />370 <br />170 <br /><1,000 <br /><200 <br /><200 <br /><200 <br /><10,000 <br /><50 <br /><100 <br />10/14/09 <br />22.46 <br />0.00 <br />-12.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/15/09 <br />- <br />- <br />- <br />13,000 <br />490 N <br />6,700 <br /><50 <br /><50 <br /><50 <br />65 <br /><500 <br /><100 <br /><100 <br /><100 <br /><5,000 <br /><25 <br /><50 <br />05/24/10 <br />20.02 <br />0.00 <br />-10.20 <br />35,000 <br />1,000 N <br />17,000 <br />110 <br />97 <br />170 <br />130 <br /><500 <br /><100 <br /><100 <br /><100 <br /><5,000 <br /><25 <br /><50 <br />10/04/10 <br />12.19 <br />20.73 <br />0.00 <br />-8.54 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10/16/10 <br />- <br />- <br />- <br />20,000 <br /><600 <br />11,000 <br />74 <br />240 <br />88 <br />110 <br />140 <br /><10 <br /><10 <br /><10 <br /><250 <br /><10 <br />04/04/11 <br />18.30 <br />0.00 <br />-6.11 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.42 <br />C Zone <br />04/06/11 <br />- <br />- <br />- <br />25,000 <br />13,000 <br />88 <br />69 <br />96 <br />160 <br /><150 <br />- <br />C Zone <br />10/03/11 <br />19.10 <br />0.00 <br />-6.91 <br />18,000 <br />11,000 <br />59 <br />84 <br />42 <br />56 <br />180 <br />0.47 <br />04/09/12 <br />18.78 <br />0.00 <br />-6.59 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />25,000 <br />12,000 <br />62 <br />31 <br />96 <br />160 <br /><150 <br />0.38 <br />10/16/12 <br />19.41 <br />0.00 <br />-7.22 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.57 <br />10/19/12 <br />- <br />- <br />- <br />25,000 <br />10,000 <br />62 <br />38 <br />56 <br />120 <br />160 <br />- <br />04/22/13 <br />17.68 <br />0.00 <br />-5.49 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.48 <br />04/24/13 <br />- <br />- <br />- <br />26,000 <br />14,000 <br />94 <br />48 <br />190 <br />180 <br />160 <br />- <br />10/14/13 <br />19.19 <br />0.00 <br />-7.00 <br />11,000 <br />5,000 <br />28 <br />11 <br />33 <br />39 <br />120 <br />0.59 <br />04/22/14 <br />18.68 <br />0.00 <br />-6.49 <br />31,000 <br />16,000 <br />86 <br />29 <br />95 <br />110 <br />120 <br />0.48 <br />10/20/14 <br />20.47 <br />0.00 <br />-8.28 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.89 <br />10/22/14 <br />- <br />- <br />- <br />8,000 <br />3,100 <br />16 <br /><5.0 <br />31 <br />33 <br />95 <br />- <br />04/27/15 <br />19.08 <br />0.00 <br />-6.89 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.53 <br />04/28/15 <br />- <br />- <br />- <br />8,600 <br />3,600 <br />19 <br /><10.0 <br />32 <br />30 <br /><100 <br />- <br />10/19/15 <br />21.12 <br />0.00 <br />-8.93 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.53 <br />10/21/15 <br />- <br />- <br />- <br />16,000 <br />11,000 <br />62 <br />19 <br />100 <br />43 <br />140 <br />- <br />04/11/16 <br />18.83 <br />0.00 <br />-6.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.14 <br />04/14/16 <br />- <br />- <br />- <br />25,000 <br />17,000 <br />62 <br />21 <br />90 <br />170 <br /><100 <br />- <br />12/12/16 <br />20.49 <br />0.00 <br />-8.30 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.71 <br />12/14/16 <br />- <br />- <br />- <br />9,200 <br />3,400 <br />36 <br />7.1 <br />47 <br />29 <br />88 <br />- <br />04/10/17 <br />12.16 <br />14.48 <br />0.00 <br />-2.32 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/11/17 <br />- <br />- <br />- <br />18,000 <br />10,000 <br />35 <br />18 <br />70 <br />290 <br />190 <br />0.16 <br />10/24/17 INA <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Broken car over well <br />05/07/18 <br />15.80 <br />0.00 <br />-3.64 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.41 <br />05/08/18 <br />- <br />- <br />- <br />1,200 <br />240 <br />6.3 <br />1.1 <br />17 <br />32 <br />82 <br />- <br />05/28/19 <br />14.00 <br />0.00 <br />-1.84 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.47 <br />05/29/19 <br />- <br />- <br />- <br />1 570 <br />- - <br />30 <br />2.4 <br /><1.00 <br />15 <br />27 <br />110 <br />- <br />- <br />- <br />- - <br />- <br />- <br />- <br />Stockton -charter way_comingles_plume_4g22.xlsm Page 80 of 116 Stantec <br />