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TABLE 1 <br /> HISTORICAL GROUNDWATER DATA-MONITORING WELLS <br /> RANCH MARKET <br /> 23569 S. SANTA FE ROAD, RIVERBANK,CA <br /> Page 8 of 10 <br /> Well ID Date Depth to Water TPH-G Benzene Toluene Ethyl Total MTBE <br /> Water Elevation benzene Xylenes <br /> TOC (feet) (feet MSL) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) <br /> MW-7 12/09/98 <br /> 106.32 12/25/99 <br /> 04/06/00 <br /> 08/16/00 29.31 77.01 10,000 320 390 210 1,100 1.2 <br /> 09/01/00 29.25 77.07 830 19 15 <0.5 92 <0.5 <br /> 11/16/00 28.49 77.83 390 4.0 1.4 1.0 3.1 0.87 <br /> 01/03/01 28.51 77.81 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 04/11/01 27.97 78.35 160 8.4 0.80 <0.5 2.0 <0.5 <br /> 07/03/01 29.21 77.11 380 57 2.8 3.1 11 0.59 <br /> 10/01/01 <br /> 01/03/02 28.12 78.20 <50 1.6 <0.5 <0.5 <0.5 <0.5 <br /> 04/05/02 <br /> 07/12/02 29.65 76.67 430 52 1.8 4.0 6.6 <0.5 <br /> 10/01/02 28.12 78.20 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 106.32 01/10/03 <br /> 04/01/03 28.99 77.33 <50 <0.5 <0.5 <0.5 <0.5 <0.5 <br /> 07/02/03 <br /> 10/02/03 30.49 75.83 <50 4.9 1.3 <0.5 0.78 0.51 <br /> 01/09/04 29.60 76.72 <50 0.61 <0.5 <0.5 <0.5 <0.5 <br /> 04/08/04 29.34 76.98 <50 <0.5 <0.5 <0.5 <1.0 <0.5 <br /> 07/01/04 29.74 76.58 <50 0.55 <0.5 <0.5 <0.5 <0.5 <br /> 10/15/04 200 3.6 1.5 0.51 2.65 3.5 <br /> 01/05/05 29.95 76.37 <50 <0.5 <0.5 <0.5 <1.0 <0.5 <br /> 04/06/05 29.46 76.86 <50 <0.5 <0.5 <0.5 <1.5 <0.5 <br /> 07/13/05 30.34 75.98 2,200 80 8.8 0.71 78 <0.5 <br /> 10/12/05 30.34 75.98 290 34 4.4 1.0 6.0 <0.5 <br /> 01/11/06 26.10 80.22 65 <0.5 <0.5 <0.5 <1.0 1.1 <br /> 03/15/06 26.40 79.92 <br /> 06/08/06 26.28 80.04 8,200 840 580 180 830 <0.5 <br /> 08/23/06 28.84 77.48 4,000 540 140 62 410 <2.5 <br /> 12/14/06 29.07 77.25 240 10.3 0.80 1.19 1.77 19.9 <br /> 03/23/07 28.84 77.48 1,700 290 78 23 183 <0.5 <br /> 06/19/07 30.11 76.21 670 1,500 140 110 310 <0.5 <br /> 02/11/08 29.75 76.57 2,800 160 58 5.5 130 <2.5 <br /> 09/19/08 32.13 74.19 2,100 230 57 33 110 <2.5 <br /> 05/10/13 <br /> 12/04/14 33.60 72.72 1,900 100 42 36 85 <0.5 <br /> 05/14/15 33.97 72.35 1,000 63 16 12 80 <0.5 <br /> 01/12/16 34.04 72.28 1,800 82 25 31 110 <0.50 <br /> 11/02/16 34.02 72.30 1,100 58 39 35 130 <0.50 <br /> 03/09/17 32.80 73.52 5,000 350 130 300 660 <2.5 <br /> 09/29/17 33.26 73.06 4,000 310 160 240 670 <5.0 <br /> 01/31/18 31.99 74.33 4,800 320 150 230 690 <0.50 <br /> 08/12/18 34.36 71.96 1,300 84 20 22 85 <0.50 <br />