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TABLE 2 Historical Groundwater Monitoring & Analytical Data Former Chevron Service Station No. 94054 2103 Country Club Boulevard, Stockton, California Well No. Date Notes TOC (ft-MSL) Depth to Water (ft) SPH (ft) OWE (ft-MSL) TPH- DRO TPH- GRO B (pg/L) T (pg/L) E (pg/L) X (pg/L) MTBE (pg/L) TBA (pg/L) TAME (pg/L) 1, 2- DCA EDB (pg/L) 0.0. (mg/L) Comments MW-4C 03/18/14 429 10 92 000 -663 690 210 3 1 2 <0 5 06 MW-4C 09/29/14 4.29 13.69 0.00 -9.40 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - 1.3 MW-4C 03/25/15 4.29 11.82 0.00 -7.53 <50 <0.5 <0.5 <0.5 <0.5 <0.5 - 0.9 MW-4C 09/28/15 4.29 14.37 0.00 -10.08 - <50 <0.5 <0.5 <0.5 <0.5 <2 - <2 <2 - 0.9 MW-4C 03/28/16 4.29 11.16 0.00 -6.87 - <50 <0.5 <0.5 <0.5 <0.5 <2 - <2 <2 - 1 2 MW-4C 09/26116 4.29 14.06 0.00 -9.77 - <60 <0.5 <0.5 <0.6 <0.5 <2 - <2 <2 - 1.3 MW-4D 02/09/09 3.67 11.71 0.00 -8.04 - 680 59 1 10 19 <0.5 6 <0.5 <0.5 <0.5 0.9 MW-4D 05/11/09 3.67 11.53 0.00 -7.86 - <50 1 <0.5 <0.5 <0.5 <0.5 4 <0.5 <0.5 <0.5 0.3 MW-4D 11/23/09 3.87 12.83 0.00 -9.16 - 55 , 3 <0.5 <0.5 0.8 <0.5 5 <0.5 <0.5 <0.5 0.4 MW-4D 05/17/10 3.67 10.50 0.00 -6.83 - 240 57 0.9 0.8 3 <0.5 5 <0.5 <0.5 <0.5 1.3 MW-4D 11/03/10 3.67 12.27 0.00 -8.60 - 180 52 <0.5 <0.5 <0.5 <0.5 - - - - 0.8 MW-4D 01/05/11 3.67 10.25 0.00 -6.58 - <50 0.9 <0.5 <0.5 <0.5 <0.5 - - - - 1.4 MW-4D 08/02/11 3.67 11.11 0.00 -7.44 - <50 8 <0.5 <0.5 <0.5 <0.5 - - - - 1.1 MW-4D 02/03/12 3.67 10.42 0.00 -6.75 - 73 20 <0.5 <0.5 <0.5 <0.5 - - - - 1.2 MW-40 08/09/12 3.67 - - - - - - - - - - - - - - - MW-4D 03/14/13 3.67 9.90 0.00 -6.23 - 95 17 <0.5 <0.5 <0.5 <0.5 - - - - 1.1 MW-4D 09/25/13 3.67 11.75 0.00 -8.08 280 83 <0.5 <0.5 <0.5 <0.5 - - - 1.9 MW-4D 03/18/14 3.67 10.35 0.00 -6.68 260 110 <0.5 <0.5 <0.5 <0.5 - 1.4 MW-4D 09/29/14 3.67 13.05 0.00 -9.38 <50 2 <0.5 <0.5 <0.5 <0.5 - - 1.4 MW-4D 03/25/15 3.67 11.18 0.00 -7.51 - <50 <0.5 <0.5 <0.5 <0.5 <0.5 - - -- - 2.2 MW-4D 09/28/15 3.67 13.72 0.00 -10.05 <50 <0.5 <0.5 <0.5 <0.5 <2 <100 <2 <2 <2 2.0 MW-4D 03/28/16 3.67 10.52 0.00 -6.85 440 150 0.5 <0.5 <0.5 <2 - <2 <2 <2 11 MW-4D 09/26/16 3.67 13.43 0.00 -9.76 <60 <0.5 <0.6 <0.6 <0.5 <2 - <2 <2 <2 1.3 MW-5 10/01/92 1.75 21.96 0.00 -20.21 ND ND ND ND ND - - - MW-5 11/30/92 1.75 21.97 0.00 -20.22 - - - - - - - - MW-5 12/28/92 1.75 21.15 0.00 -19.40 - - - - - - - - MW-5 01/15/93 1.75 19.63 0.00 -17.88 - 1,000 ND 6.5 1.1 1.6 - - - MW-5 04/21/93 1.75 15.97 0.00 -14.22 2,500 31 6.9 20 18.0 - - - MW-5 08/20/93 1.75 18.22 0.00 -16.47 1,100 34 2.0 0.7 1.0 - - - - MW-5 11/22/93 1.75 18.79 0.00 -17.04 1,000 ND 2.0 ND 2.0 - - - - MW-5 02/17/94 1.75 16.97 0.00 -15.22 4,200 ND 23.0 2.0 4.0 - - - - MW-5 05/23/94 1.75 16.62 0.00 -14.87 750 7.5 8.5 2.1 6.6 - - - - - MW-5 08/15/94 1.75 18.35 0,00 -16.60 900 ND 4.1 ND 1.8 - - - MW-5 11/23/94 1.75 18.88 0.00 -17.13 700 0 6 6.5 0.8 1.1 - - MW-5 02/23/95 1.75 15.96 0.00 -14.21 290 0.6 2.4 <0.5 0.9 - - - MW-5 05/26/95 1.75 14.20 0.00 -12.45 150 3.1 <0.5 <0.5 <0.5 - - - MW-5 08/25/95 1.75 15.02 0.00 -13.27 240 <0.5 <0.5 <0.5 <0.5 - - MW-5 11/30/95 1.75 16.00 0.00 -14.25 200 <1.0 <1.0 <1.0 <1.0 - - MW-5 03/26/96 1.67 10.30 0.00 -8.63 570 <0.5 as <0.5 <0.5 - - - MW-5 05/16/96 1.67 10.17 0.00 -8.50 <50 <0.5 <0.5 <0.5 <0.5 - - MW-5 08/22/96 1.67 12.76 0.00 -11.09 - 140 <0.5 1.4 <0.5 <0.5 - - - MW-5 11/05/96 1.67 13.50 0.00 -11.83 - 310 4.0 1.8 1.6 1.0 7.2 - MW-5 02/25/97 1.67 8.25 0.00 -6.58 - <50 <0.5 <0.5 <0.5 <0.5 <2.5 - MW-5 05/20/97 1.67 9.44 0.00 -7.77 - <50 <0.5 <as <0.5 <0.5 <2.5 - MW-5 08/26/97 1.67 11.72 0.00 -10.05 - 83 1.1 <0.5 <0.5 <0.5 <2.5 - MW-5 11/05/97 1.67 12.51 0.00 -10.84 180 <0.5 <0.5 <0.5 <0.5 <2.5 <100 <2.0 MW-5 02/10/98 1.67 5.65 0.00 -3.98 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - MW-5 05/20/98 1.18 6.60 0.00 -5.42 9,600 730 35 430 47 <125 <625 <12 MW-5 08/12/98 1.18 8.00 0.00 -6.82 2,000 410 24 130 53 <50 - - MW-5 12/01/98 1.18 8.88 0.00 -7.70 900 160 11 61 24 13 - MW-5 02/02/99 1.18 7.42 0.00 -6.24 340 15 15 <1.0 2.1 15 - 94054 GW Tables.xls Page 11 of 28 Stan tec