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TABLE 1 Page 8 of 9 <br /> GROUNDWATER DATA <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> CORDESRANCH <br /> TRACY,CALIFORNIA <br /> Ground Depth to Depth to Depth m&p- o- Xylnus <br /> WellID Sample Date TOC Surface Water Water GWEIev to SPH Thickness TPHc TPHd Bnizene Toluene Ethylbeuzene Xylntes Xylene (total) IDS <br /> (ft MSL) (ft MSL) (ft TO C) (ft bgs) (ft MSL) (feet) (feet) (Kg/L) WIL) (per) (per') (pg') W/L) wIL) (per) ('ate) <br /> MW-15 9/8/2011 127.06 124.05 39.98 36.97 87.10 39.95 0.03 - - <br /> MW-15 11/30/2011 127.06 124.05 40.04 37.03 87.07 39.98 0.06 - - - - <br /> MW-15 3/22/2012 127.06 124.05 41.51 38.50 85.60 41.45 O.D6 - - - <br /> MW-15 6/27/2012 127.06 124.05 40.35 37.34 86.73 40.32 0.03 - ' <br /> MW-15 8/24/2012 127.06 124.05 40.93 37.92 86.16 40.89 0.04 - - _ _ - <br /> MW-15 9/18/2012 127.06 124.05 39.77 36.76 87.31 39.74 0.03 - - <br /> MW-15 11/2/2012 127.06 124.05 39.75 36.74 87.33 39.72 0.03 - <br /> MW-15 11/30/2012 Unable to access due to weather conditions - - <br /> MW-15 12/28/2012 127.06 124.05 39.95 36.94 87.13 39.93 0.02 - - <br /> MW-15 1/11/2013 127.06 124.05 40.72 37.71 86.38 40.67 0.05 - - - <br /> MW-15 2/21/2013 127.06 124.05 40.38 37.37 86.69 4037 O.Dl - <br /> MW-15 3/5/2013 127.06 124.05 40.58 37.57 86.50 4056 0.02 - - <br /> MW-15 4/25/2013 127.06 124.05 40.80 37.79 86.30 40.75 0.05 - - <br /> MW-15 5/24/2013 127.06 124.05 40.50 37.49 86.58 40.48 0.02 - - - <br /> MW-15 6/18/2013 127.06 124.05 40.58 37.57 86.49 40.57 0.01 - " <br /> MW-15 7/15/2013 127.06 124.05 40.16 37.15 86.92 40.14 0.02 - - - <br /> Notes and Abbreviations: <br /> gg/L=micrograms per liter(parts per billion) <br /> mg/L=milligrams per liter <br /> <n=Below detection limit <br /> -=Not analyzed <br /> TPHc=Total petroleum hydrocarbons as crude oil by EPA Method 8015B(Ivi)(C6-C44) <br /> TPHd=Total petroleum hydrocarbons as diesel by EPA Method 80156(CID-C28) <br /> Benzene,toluene,ethylbemme,xylenes by EPA Method 8260B. <br /> IDS=Total dissolved solids by Standard Methods 2540 C <br /> TOC=Top of casing elevation(Eley)in feet(ft)relative to mean sea level(MSL) <br /> ft bgs=feet below ground surface <br /> GW=Groundwater <br /> Depth to water measured at TOC <br /> a=Hydrocarbon result party due to individual peak(s)in quantitation range. <br /> b=EPA 8015E w/Silica Gel Clean-up <br /> c=Depth to water measurements taken prior ro well development. Measurement is inaccurate due to excessive sediment in well. Well redeveloped and sediment removed in September 2011. <br /> rRnoaunr(NI <br />