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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-1 11/03/03 <br />10.45 <br />24.23 <br />0.00 <br />-13.78 <br />3,700 <br />1,000 <br /><25 <br />28 <br />81 <br />27 <br /><1,000 <br /><50 <br /><50 <br /><50 <br /><5,000 <br /><25 <br />2.1 <br />02/09/04 <br />23.97 <br />0.00 <br />-13.52 <br />5,300 <br />1,200 <br /><25 <br />74 <br />64 <br /><25 <br /><1,000 <br /><50 <br /><50 <br /><50 <br /><5,000 <br /><25 <br />3.0 <br />05/10/04 <br />23.11 <br />0.00 <br />-12.66 <br />3,900 <br />890 <br /><50 <br /><50 <br /><50 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />2.2 <br />08/09/04 <br />24.24 <br />0.00 <br />-13.79 <br />14,000 <br />4,200 <br />97 J <br />440 <br />250 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />1.3 <br />11/15/04 <br />25.18 <br />0.00 <br />-14.73 <br />6,200 <br />2,300 <br /><50 <br />120 <br />86 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />0.5 <br />02/08/05 <br />23.89 <br />0.00 <br />-13.44 <br />12,000 <br />4,600 J <br />86 <br />500 <br />200 <br />23 <br /><200 <br /><10 <br /><10 <br /><10 <br /><1,000 <br /><5.0 <br />2.0 <br />05/09/05 <br />21.64 <br />0.00 <br />-11.19 <br />8,700 <br />2,700 <br /><50 <br />320 <br />140 <br /><50 <br /><2,000 <br /><100 <br /><100 <br /><100 <br /><10,000 <br /><50 <br />1.8 <br />08/18/05 <br />22.32 <br />0.00 <br />-11.87 <br />9,900 J <br />2,600 <br />98 J <br />680 <br />320 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><10,000 <br /><50 <br />0.3 <br />11/17/05 <br />NS <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />02/06/06 <br />NS <br />05/08/06 <br />NS <br />08/07/06 <br />19.38 <br />0.00 <br />-8.93 <br />7,700 <br />3,100 <br />57 <br />300 <br />140 <br /><50 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.8 <br />10/30/06 <br />10.02 <br />20.35 <br />0.00 <br />-10.33 <br />25,000 <br />11,000 <br />660 <br />1,000 <br />1,500 <br />160 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.9 <br />01/29/07 <br />20.56 <br />0.00 <br />-10.54 <br />18,000 <br />10,000 <br />400 <br />730 <br />1,900 <br />180 <br /><4,000 <br /><100 <br /><100 <br /><100 <br /><60,000 <br /><100 <br />1.1 <br />05/07/07 <br />19.98 <br />0.00 <br />-9.96 <br />110 <br />51 <br />1.9 <br />5.0 <br />8.7 <br />0.67 <br /><20 <br /><0.50 <br /><0.50 <br /><0.50 <br /><300 <br /><0.50 <br />1.0 <br />08/06/07 <br />20.60 <br />0.00 <br />-10.58 <br />25,000 <br />9,300 <br />320 <br />1,600 <br />1,900 <br />120 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />0.7 <br />11/01/07 <br />21.21 <br />0.00 <br />-11.19 <br />29,000 <br />8,400 <br />210 <br />2,100 <br />2,200 <br />120 <br /><2,000 <br /><50 <br /><50 <br /><50 <br /><30,000 <br /><50 <br />4.0 <br />02/04/08 <br />19.87 <br />0.00 <br />-9.85 <br />47,000 <br />8,100 <br />270 <br />2,600 <br />3,600 <br />93 <br /><500 <br /><25 <br /><25 <br /><25 <br /><5,000 <br /><25 <br />0.7 <br />05/05/08 <br />19.37 <br />0.00 <br />-9.35 <br />8,300 <br />1,800 <br />57 <br />540 <br />720 <br />55 <br /><500 <br /><25 <br /><25 <br /><25 <br /><15,000 <br /><25 <br />5.3 <br />08/04/08 <br />20.22 <br />0.00 <br />-10.20 <br />4,100 <br />490 <br /><25 <br />150 <br /><25 <br /><25 <br /><500 <br /><25 <br /><25 <br /><25 <br /><15,000 <br /><25 <br />- <br />10/23/08 <br />21.18 <br />0.00 <br />-11.16 <br />5,000 <br />1,000 <br /><25 <br />320 <br /><25 <br /><25 <br /><500 <br /><25 <br /><25 <br /><25 <br /><15,000 <br /><25 <br />3.7 <br />01/27/09 <br />21.28 <br />0.00 <br />-11.26 <br />610 <br />49 <br />1.8 <br />15 <br />2.1 <br /><1.0 <br /><20 <br /><1.0 <br /><1.0 <br /><1.0 <br /><600 <br /><1.0 <br />1.7 <br />04/27/09 <br />19.88 <br />0.00 <br />-9.86 <br />1,800 <br />120 <br />3.2 <br />30 <br />8.1 <br />1.1 <br /><20 <br /><1.0 <br /><1.0 <br /><1.0 <br /><600 <br /><1.0 <br />1.1 <br />07/22/09 <br />20.98 <br />0.00 <br />-10.96 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />10.6 <br />07/23/09 <br />- <br />- <br />- <br />5,800 <br />1,100 <br />25 <br />250 <br />40 <br /><20 <br /><400 <br /><20 <br /><20 <br /><20 <br /><12,000 <br /><20 <br />- <br />02/18/10 <br />20.20 <br />0.00 <br />-10.18 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.2 <br />02/19/10 <br />- <br />- <br />- <br />1,400 <br />150 <br />4.0 <br />23 <br />9.0 <br /><2.5 <br /><50 <br /><2.5 <br /><2.5 <br /><2.5 <br /><1,500 <br /><2.5 <br />- <br />05/24/10 <br />18.80 <br />0.00 <br />-8.78 <br />2,000 <br />140 <br />5.7 <br />26 <br />27 <br /><2.5 <br /><50 <br /><2.5 <br /><2.5 <br /><2.5 <br /><1,500 <br /><2.5 <br /><2.5 0.7 <br />Hydrocarbon odor <br />10/04/10 <br />11.77 <br />19.74 <br />0.00 <br />-7.97 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- - <br />10/14/10 <br />- <br />- <br />- <br />3,600 <br />410 <br />14 <br />30 <br />27 <br />0.57 <br />10 <br />0.89 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br />- <br />04/04/11 <br />17.26 <br />0.00 <br />-5.49 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.38 <br />B Zone <br />04/05/11 <br />- <br />- <br />- <br />330 <br />2.2 <br /><0.50 <br /><0.50 <br />1.3 <br />0.83 <br />19 <br />- <br />B Zone <br />10/03/11 <br />17.90 <br />0.00 <br />-6.13 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.64 <br />10/04/11 <br />- <br />- <br />- <br />2,600 <br />180 <br />7.8 <br />2.4 <br />14 <br />0.67 <br />14 <br />- <br />04/09/12 <br />18.05 <br />0.00 <br />-6.28 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />04/10/12 <br />- <br />- <br />- <br />3,600 <br />110 <br />15 <br />5.4 <br />28 <br /><0.50 <br />10 <br />0.81 <br />10/16/12 <br />18.24 <br />0.00 <br />-6.47 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.71 <br />10/17/12 <br />- <br />- <br />- <br />1,200 <br />2.0 <br />1.3 <br />0.51 <br />2.2 <br />0.83 <br />12 <br />- <br />04/24/13 <br />16.78 <br />0.00 <br />-5.01 <br />350 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br />3.7 <br />27 <br />0.53 <br />10/14/13 <br />18.34 <br />0.00 <br />-6.57 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />1.44 <br />10/15/13 <br />- <br />- <br />- <br />3,600 <br />140 <br />10 <br />2.7 <br />20 <br />0.83 <br />10 <br />- <br />04/22/14 <br />17.86 <br />0.00 <br />-6.09 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />3.64 <br />04/24/14 <br />- <br />- <br />- <br />1,300 <br />8.0 <br />2.1 <br />0.81 <br />5.5 <br />1.4 <br />14 <br />- <br />10/20/14 <br />19.65 <br />0.00 <br />-7.88 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />0.52 <br />10/23/14 <br />- <br />- <br />- <br />630 <br />2.4 <br />0.82 <br /><0.50 <br />2.4 <br />1.2 <br />12 <br />- <br />04/27/15 <br />1 <br />18.11 <br />0.00 <br />-6.34 <br />1 350 <br />0.50 <br /><0.50 <br /><0.50 <br /><1.0 <br />1.1 <br />7.2 <br />0.56 <br />stockton_charter_ way_comingles_Plume_4g22.xlsm Page 2 of 116 Stantec <br />