ARCHIVED REPORTS_SITE INVESTIGATION AND WELL DESTRUCTION PERMIT

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TABLE 3 Page 2 of 9 GROUNDWATER DATA FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES CORDES RANCH TRACY,CALIFORNIA Ground Depth to Depth to Depth to m&p- o- Xylenes Well ID Sample Date TOC Surface Water Water GWElev SPH Thickness TPHc TPHd Benzene Toluene Ethylbenzene Xylenes Xylene (total) TD5 ft MSL ft MSL ft TOC ft bgs ft MSL feet feet (49/L) 991L RgA 1191L 99/L ImIt Wt. pOL m9/L MW-3 4/25/2013 123.70 121.07 37.08 34.45 86.62 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 MW-3 7/15/2013 123.70 121.07 36.29 33.66 87.41 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-3 10/30/2013 123.70 121.07 35.03 32.40 88.67 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-3 1/23/2014 123.70 121.07 36.25 33.62 87.45 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-3 4/15/2014 123.70 121.07 37.21 34.58 86.49 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 - MW-4 8/23/2010 123.41 120.78 36.00 33.37 87.41 - - <250 77 <0.50 <1.0 <1.0 <1.0 <1.0 MW-4 12/8/2010 123.41 120.78 35.86 33.23 87.55 - - <250 <50 <050 <1.0 <1.0 - <1.0 1,200 MW-4 6/27/2011 123.41 120.78 37.02 34.39 86.39 - - 450 57 a,b <0.50 <0.50 <0.50 <1,0 _ MW-4 9/8/2011 123.41 120.78 36.02 33.39 87.39 - - <480 <96b <0.50 <0.50 <0S0 <1.0 MW-4 11/30/2011 123.41 120.78 35.50 32.87 87.91 - - - <48.1 b <0.50 <0.50 <0.50 - - <0.50 MW-4 3/22/2012 123.41 120.78 37.22 34.59 86.19 - - <240 - <0.50 <0.50 <0.50 <1.0 MW-4 6/27/2012 123.41 120.78 35.95 33.32 87.46 - - <240/<240b - <0.50 <0.50 <050 <1.0 MW-4 f 9/18/2012 123.41 120.78 34.80 32.17 88.61 - - <250/<250 b - <050 <1.0 <1.0 <1.0 MW-4 g 9/18/2012 - - - - - - - 800/330 be - - MW-4 1/11/2013 123.41 120.78 35.58 32.95 87.83 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 MW4 4/25/2013 123.41 120.78 36.66 34.03 86.75 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 MW-47/15/2013 123.41 120.78 35.93 33.30 87.48 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-4 10/30/2013 123.41 120.78 34.75 32.12 88.66 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-41/23/2014 123.41 120.78 35.95 33.32 87.46 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 MW-4 4/15/2014 123.41 120.78 36.97 34.34 86.44 - - <250/<250 b - <0.50 <1.0 <1.0 <1.0 <1.0 <1.0 - MW-SA 8/23/2010 123.34 120.89 35.90 33.45 87.44 - - 24,000 13,000 370 <1.0 1.7 <1.0 <1.0 MW-SA 9/16/2010 123.34 120.89 35.45 33.00 87.89 - - 15,000 9,100 380 <2.0 Q.0 <2.0 <2.0 1,260 MW-5A 12/9/2010 123.34 120.89 35.60 33.15 87.74 - - 6,400 3,700 400 <2.0 Q.0 <2.0 1,250 MW-SA 6/27/2011 123.34 120.89 37.09 34.64 86.43 36.87 0.22 - _ _ MW-5A 9/8/2011 123.34 120.89 35.79 33.34 87.61 35.71 0.08 - _ MW-SA 11/30/2011 123.34 120.89 35.43 32.98 87.94 35.39 0.04 - _ MW-5A 3/22/2012 123.34 120.89 37.95 3550 86.09 37.08 0.87 - MW-SA 6/27/2012 123.34 120.89 36.18 33.73 87.38 35.90 0.28 - MW-SA 8/24/2012 123.34 120.89 36.62 34.17 87.21 36.01 0.61 - MW-5A 9/18/2012 123.34 120.89 34.75 32.30 88.65 34.68 0.07 - _ MW-SA 11/2/2012 123.34 120.89 35.56 33.11 87.98 35.31 0.25 - MW-SA 11/30/2012 123.34 120.89 34.76 32.31 88.79 34.50 0.26 MW-5A 12/28/2012 123.34 120.89 35.25 32.80 88.28 35.01 0.24 - - MW-SA 1/11/2013 123.34 120.89 36.83 34.38 86.76 36.52 0.31 - MW-SA 2/21/2013 123.34 120.89 36.06 33.61 87.29 36.05 0.01 - MW-5A 3/5/2013 123.34 120.89 36.20 33.75 87.16 36.18 0.02 - _ MW-5A 4/25/2013 123.34 120.89 36.65 34.20 86.75 36.58 0.07 - - MW-5A 5/24/2013 123.34 120.89 36.29 33.84 87.07 36.26 0.03 - MW-SA 6/18/2013 123.34 120.89 36.46 34.01 86.89 36.45 0.01 - MW-5A 7/15/2013 123.34 120.89 35.96 33.51 87.40 35.94 0.02 - MW-SA 8/15/2013 123.34 120.89 35.46 33.01 87.90 35.40 0.02 - CMN02B(37)