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Page 9 of 25 <br />Table 1 <br />Historical Groundwater Gauging and Analytical Results <br />Union Oil Company of California <br />Former 76 Station No. 4409/ Phillips 66 Site 2469 <br />1502 North El Dorado Street, Stockton, CA <br />Well ID <br />Sample <br />Date <br />TOC <br />(ft. amsl) <br />DTW <br />(ft) <br />GWE <br />(ft. amsh <br />TPH-g <br />(pg/L) <br />Benzene <br />(pg/L) <br />Toluene <br />(pg/L) <br />Ethyl- <br />benzene <br />(pg/L) <br />Total <br />Xylenes <br />(pg/L) <br />MTBE <br />(pg/L) <br />TEA <br />(pg/L) <br />EDB <br />(pg/L) <br />1,2-DCA <br />(pg/L) <br />DI PE <br />(pg/L) <br />ETBE <br />(pg/L) <br />TAME <br />(pg/L) <br />Ethanol Comments <br />(pg/L) <br />MW-6 08/13/13 11.59 26.75 -15.16 <50 <0.50 <0.50 <0.50 <1.0 8.6 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 02/07/14 11.59 28.50 -16.91 <50 <0.50 <0.50 <0.50 <1.0 73 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 09/24/14 11.59 28.83 -17.24 <50 <0.50 <0.50 <0.50 <1.0 30 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 03/18/15 11.59 29.30 -17.71 <50 <0.50 <0.50 <0.50 <1.0 38 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 08/28/15 11.59 31.10 -19.51 <50 <0.50 <0.50 <0.50 <1.0 32 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 03/30/16 11.59 30.41 -18.82 51 <0.50 <0.50 <0.50 <1.0 30 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 08/29/16 11.59 30.50 -18.91 <50 <0.50 <0.50 <0.50 1.2 10 <10 <0.50 0.83 <0.50 <0.50 <0.50 <250 <br />MW-6 10/29/16 11.59 30.92 -19.33 - - - - - - - - - - - - - <br />MW-6 03/10/17 11.59 26.60 -15.01 51 <0.50 <0.50 <0.50 <1.0 37 <10 <0.50 2.4 <0.50 <0.50 <0.50 <250 <br />MW-6 08/11/17 11.59 24.30 -12.71 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 02/28/18 11.59 23.28 -11.69 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 08/31/18 11.59 22.48 -10.89 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 03/01/19 11.59 2090. -9.31 <50 <0.50 <0.50 <0.50 <1.0 3.2 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 09/05/19 11.59 19.07 -7.48 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-6 02/28/20 11.59 18.43 -6.84 <50 <0.50 <0.50 <0.50 <1.0 0.49J <10 <0.50 <0.50 <0.50 <0.50 <0.50 <250 <br />MW-7 01/22/01 11.40 27.76 -16.36 88 1.8 10 2.0 12 ND ND ND ND ND ND ND ND <br />MW-7 04/05/01 11.40 27.22 -15.82 ND ND ND ND ND ND ND ND ND ND ND ND ND <br />MW-7 07/05/01 11.40 28.14 -16.74 ND 0.64 ND ND ND ND ND ND 3.8 ND ND ND ND <br />MW-7 10/10/01 11.40 30.27 -18.87 <50 <0.50 <0.50 <0.50 1.6 <5.0 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <1,000 <br />MW-7 01/17/02 11.40 29.76 -18.36 <50 <0.50 <0.50 <0.50 <0.50 <5.0 <20 <1.0 1.3 <1.0 <1.0 <1.0 <500 <br />MW-7 04/18/02 11.40 29.01 -17.61 <50 <0.50 <0.50 <0.50 <0.50 <5.0 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <500 <br />MW-7 07/11/02 11.40 30.03 -18.63 66 <0.50 <0.50 <0.50 <1.0 <2.0 <5.0 <0.50 0.99 <1.0 <0.50 <0.50 <25 <br />MW-7 11/14/02 11.40 32.80 -21.40 <50 <0.50 <0.50 <0.50 <1.0 <2.0 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <500 <br />MW-7 01/30/03 11.40 32.01 -20.61 <50 <0.50 <0.50 <0.50 <1.0 <2.0 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <500 <br />MW-7 04/28/03 11.40 31.20 -19.80 <50 <0.50 <0.50 <0.50 <1.0 36 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <500 <br />MW-7 07/28/03 11.40 32.61 -21.21 68 <0.50 <0.50 <0.50 <1.0 80 <100 <2.0 <2.0 <2.0 <2.0 <2.0 <500 <br />MW-7 10/08/03 11.40 34.19 -22.79 <50 0.73 1.4 1.6 7.5 4.4 <100 <2.0 2.4 <2.0 <2.0 <2.0 <500 <br />MW-7 01/12/04 11.40 33.67 -22.27 <50 4.6 3.0 1.5 3.9 <2.0 <100 <2.0 2.2 <2.0 <2.0 <2.0 <500 <br />MW-7 04/26/04 11.40 3223 -20.83 78 <0.50 <0.50 1.9 3.1 1.8 <5.0 <0.50 2.2 <1.0 <0.50 <0.50 <50 <br />MW-7 07/13/04 11.40 33.43 -22.03 <50 <0.50 <0.50 <0.50 <1.0 1.5 <5.0 <0.50 2.3 <1.0 <0.50 <0.50 <50 <br />MW-7 10/26/04 11.40 35.50 -24.10 <50 <0.50 <0.50 <0.50 <1.0 1.7 <5.0 <0.50 3.1 <1.0 <0.50 <0.50 <50 <br />MW-7 01/12/05 11.40 34.82 -23.42 <50 <0.50 <0.50 <0.50 <1.0 1.3 <5.0 <0.50 4.8 <1.0 <0.50 <0.50 <50 <br />MW-7 04/12/05 11.40 32.43 -21.03 <50 <0.50 <0.50 <0.50 <1.0 <2.5 <5.0 <0.50 3.9 <0.50 <0.50 <0.50 <50 <br />MW-7 07/12/05 11.40 31.40 -20.00 <50 <0.50 <0.50 <0.50 <1.0 0.78 <5.0 <0.50 4.0 <0.50 <0.50 <0.50 <50 <br />MW-7 10/05/05 11.40 33.05 -21.65 <50 <0.50 <0.50 <0.50 <1.0 11 <5.0 <0.50 12 <0.50 <0.50 <0.50 <50 <br />MW-7 01/12/06 11.40 32.01 -20.61 <50 <0.50 <0.50 <0.50 <1.0 <0.50 <10 - 9.9 <0.50 <0.50 <0.50 <250 <br />MW-7 04/12/06 11.40 29.71 -18.31 <50 <0.50 <0.50 <0.50 <1.0 0.83 <10 - 11 <0.50 <0.50 <0.50 <250 <br />MW-7 07/10/06 11.40 28.10 -16.70 <50 <1.0 <1.0 <1.0 <2.0 1.5 <20 - 11 <1.0 <1.0 <1.0 <500 <br />MW-7 10/18/06 11.40 31.10 -19.70 <50 <1.0 <1.0 <1.0 <2.0 1.7 <20 - 9.4 <1.0 <1.0 <1.0 <500 <br />MW-7 03/12/07 11.40 28.47 -17.07 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <10 - 14 <0.50 <0.50 <0.50 <250 <br />MW-7 05/15/07 11.40 28.23 -16.83 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <10 <0.50 15 <0.50 <0.50 <0.50 <250 <br />MW-7 08/01/07 11.40 28.92 -17.52 <50 <0.50 <0.50 <0.50 <0.50 0.77 <10 <0.50 13 <0.50 <0.50 <0.50 <250 <br />OHO 11193145 (5)