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TABLE 2 <br />Historical Groundwater Monitoring & Analytical Data <br />Former Chevron Service Station No. 94054 <br />2103 Country Club Boulevard, Stockton, California <br />Well No. Date Notes <br />_ <br />TOC <br />(ft-MSL) <br />Depth <br />to <br />Water <br />SPH <br />(ft) <br />(ft)(pg/L) <br />GWE <br />(ft-MSL) <br />_ <br />TPH- <br />DRO <br />TPH- <br />GRO <br />(pg/L) <br />B <br />(pg/L) <br />T <br />(pg/L) <br />E <br />(pg/L) <br />X <br />(pg/L) <br />MTBE <br />(pg/L) <br />TBA <br />(pg/L) <br />TAME <br />(pg/L) <br />1,2- <br />DCA <br />(pg/L) <br />EDB <br />(pg/L) <br />D.O. <br />(mg/L) Comments <br />MW-4 09/28/15 365 13 04 000 -939 7,100 140 33 130 85 <2 <2 <2 Grab sample <br />MW-4 03/28/16 3.65 8.43 0.00 -4.78 12,000 130 31 380 69 <2 <2 <2 1.0 Grab sample <br />MW-4 09126/16 3.86 12.64 0.00 4.89 -- 6,600 96 14 67 26 <3 <3 <3 -- 1.6 <br />MW-4B 11/10/06 4.11 11.09 0.00 -6.98 - - - - -- _ - Well development performed <br />MW-4B 11/13/06 4.11 10.95 0.00 -6.84 15,000 3,200 74 35 85 <5 1.7 <br />MW-4B 02/12/07 4.11 9.16 0.00 -5.05 - 12,000 3,000 58 19 77 <3 - 1.3 <br />MW-4B 05/14/07 4.11 9.38 0.00 -5.27 14,000 4,000 80 24 57 <5 - 1.2 <br />MW-4B 08/13/07 4.11 11.51 0.00 -7.40 12,000 3,400 69 23 51 <5 - - - - 1.1 <br />MW-4B 1 1/12/07 4.11 11.83 0.00 -7.72 6,600 1,400 25 9 26 <1 - - - 1.1 <br />MW-4B 02/11/08 4.11 7.71 0.00 -3.60 7,700 1,600 25 5 32 <3 - - 0.9 <br />MW-4B 05/12/08 4.11 9.19 0.00 -5.08 12,000 5,000 75 17 55 <5 - - 0.7 <br />MW-4B 08111/08 4.11 11.51 0.00 -7.40 13,000 4,300 59 14 41 <3 - -- 0.8 <br />MW-4B 1 1/10/08 4.11 11.71 0.00 -7.60 - 14,000 3,600 78 <50 <50 <50 - <50 <50 - 0.6 <br />MW-4B 02/09/09 4.11 10.38 0.00 -6.27 - 8,500 3,200 50 4 36 <3 - <3 <3 - 0.5 <br />MW-4B 05/11/09 4.11 9.63 0.00 -5.52 2,700 380 3 <05 14 <0.5 - <0.5 <0.5 - 0.3 <br />MW-40 11/23/09 4.11 12.08 0.00 -7.97 - 12,000 3,600 60 14 40 <3 - <3 <3 - 1.3 <br />MW-4B 05/17/10 4.11 8.41 0.00 -4.30 11,000 2,000 54 16 46 <1 - <1 <1 - 0.8 <br />MW-4B 11/03/10 4.09 11.52 0.00 -7.43 13,000 5,400 79 16 51 <5 - - - - 0.7 <br />MW-4B 01/05/11 4.09 8.30 0.00 -4.21 11,000 4,700 58 11 31 <5 - - - - 1.4 <br />MW-48 08/02/11 4.09 9.80 0.00 -5.71 17,000 5,100 70 16 47 <5 - - - - 1.1 <br />MW-4B 02/03/12 4.09 10.05 0.00 -5.96 - 390 19 <0.5 <0.5 1 <0.5 - - - - 1.2 <br />MW-4B 08/09/12 4.09 11.35 0.00 -7.26 4,500 830 11 <5 5 <5 - - - - 0.9 <br />MW-4B 03/14/13 4.09 8.75 0.00 -4.66 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - 0.9 <br />MW-48 09/25/13 4.09 11.82 0.00 -7.73 10,000 1,900 40 6 26 <1 - - 0 7 <br />MW-4B 03/18/14 4.09 9.60 0.00 -5.51 - 4,400 660 14 <1 15 <1 - - 09 <br />MW-4B 09/29/14 4.09 13.09 0.00 -9.00 - 1,600 130 3 <0.5 4 <0.5 - 14 <br />MW-4B 03/25/15 4.09 9.93 000 -5.84 - 380 1 <0.5 <0.5 1 <0.5 - - -- 1.3 <br />MW-4B 09/28/15 4.09 13.73 0.00 -9.64 - 350 52 <0.5 <0.5 <0.5 <2 - <2 <2 - 1.6 <br />MW-4B 03/28/16 4.09 9.14 0.00 -5.05 - 390 1 <05 <0.5 1 <2 - <2 <2 - 1.2 <br />MW-48 09126/16 4.09 13.30 0.00 -9.21 - 1,400 140 2 <0.5 3 <2 - <2 <2 - 1.2 <br />MW-4C 11/10/06 4.30 12.24 0.00 -7.94 - - - - - - - Well development performed <br />MW-4C 11/13/06 4.30 12.77 0.00 -8.47 1,300 ' 240 5 5 26 <2 - - - 1.9 <br />MW-4C 02/12/07 4.30 11.37 0.00 -7.07 200 30 0.9 <0.5 1 <0.5 - - 1.6 <br />MW-4C 05/14/07 4.30 11.87 0.00 -7.57 - 850 220 3 0.9 4 <2 - - - 2.1 <br />MW-4C 08/13/07 430 13.70 0.00 -9.40 - <50 10 <0.5 <0.5 <0.5 <0.5 - - - - 1.4 <br />MW-4C 11/12/07 4.30 13.22 0.00 -8.92 - 180 71 0.7 <0.5 1 <0.5 - - - - 1.3 <br />MW-4C 02/11/08 4.30 10.68 0.00 -6.38 - 130 35 0.6 <0.5 <0.5 <2 - - - - 1.2 <br />MW-4C 05/12/08 4.30 11.85 0.00 -7.55 - <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - - - 0.9 <br />MW-4C 08/11/08 4.30 13.62 0.00 -9.32 - <50 <0.5 <0.5 <0.5 <0.5 <2 - - - - 0.7 <br />MW-4C 11/10/08 4.30 13.31 0.00 -9.01 - <50 2 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 - 0.3 <br />MW-4C 02/09/09 430 12.34 0.00 -8.04 - <50 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 - 0.5 <br />MW-4C 05/11/09 4.30 12.18 0.00 -7.88 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 - 0.2 <br />MW-4C 11/23/09 4.30 13.42 0.00 -9.12 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 - 0.6 . <br />MW-4C 05/17/10 4.30 11.13 0.00 -6.83 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 - 1.7 <br />MW-4C 11/03/10 4.29 12.89 0.00 -8.60 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - - - 1.1 <br />MW-4C 01/05/11 4.29 10.89 0.00 -6.60 400 150 0.9 <0.5 0.6 <0.5 - - - - 1.6 <br />MW-4C 08/02/11 4.29 11.27 0.00 -6.98 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - - - 1.0 <br />MW-4C 02/03/12 4.29 11.08 0,00 -6.79 <50 1 <0.5 <0.5 <0.5 <0.5 - - - - 1.1 <br />MW-4C 08/09/12 4.29 - - - - - - - - - - - - <br />MW-4C 03/14/13 4.29 10.53 0.00 -6.24 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - - 1.3 <br />MW-4C 09/25/13 4.29 12.40 0.00 -8.11 100 23 <0.5 <0.5 <0.5 <0.5 - - - 0.6 <br />94054 GW Tables.xls <br /> <br />Page 10 of 28 <br /> Stantec