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r—x x x x x x^.x.,......_x—x_x_._-_.x_....—x_. x x <br /> X Chain Link Fence <br /> x <br /> U <br /> N <br /> x TPHg - 550 <br /> TPHd - <50 TPHg = 1700 <br /> 1 g <br /> x� a - 18 TPHd - <50 <br /> � E = D6 6 - 73 <br /> X = 40 T = 43 <br /> x� E = 07 <br /> R, <br /> X - 44 <br /> v <br /> X s <br /> I 0MW-e <br /> 1 f %W-7 <br /> x <br /> I <br /> VTPHg = 2900 <br /> yHdg <br /> TPHd - <50 <br /> 8 - 240 <br /> 1 T 110 <br /> E13 <br /> X 100 <br /> Driveway �s8-2 <br /> Y YA 10,000 Gallon MW-1 <br /> -1 Unleaded Fuel <br /> (Removed) Former A-np Island <br /> 1 1 <br /> x 5,000 Gallon <br />' BMW-3 Diesel Fuel Building MW-60 <br /> (Removed) F TPHg - 60D <br /> SSB-1 t TPHd = <50 <br /> 3 B - 78 <br /> 1 (f) x ox no ooe o o xa aw o»x«so-ero es�a T - 11 <br /> TPHg - 650 E = 2$ TPHg - 1 800 <br /> LEGEND TPHd - <50 X 70 TPHd - <50 <br /> x B - 400 B - 250 <br /> T = 6 D Approximate Location Former Pomp Island T - 17 <br /> O Proposed Groundwater Monitoring Wells E - Z9 of Underground E - 55 h <br />' MW-4 through MW-8, GEOCON Groundwater x - 90 Fuel Tank Cavity concrete x = 13 j <br /> Monitoring Wells,April 1995 MW-2 0 20 <br /> d, MW-1 through MW-3, Alton Geosclence TPHd = �50 <br /> Groundwater Monitoring Wells,March 1992 Dnveway B - e05 Approx Scale in Feet <br /> T - 06 TPHg - 130 i <br /> ® SB-1 and S8-2, Alton Geoscience E _ <05 TPHd - -50 <br /> 1 Sal Borings,March 1992 x = <05 B = 1 7 <br /> T 08 <br /> VW-1, Approximate Location of Vapor Recovery Well E . 0 s <br /> x = 7 70 <br /> x ENVIRONMENTAL CONSULTANTSINCORPORATE0 <br /> O 323b SUNRISE BLVD -SUITe6-RANCHO CORDOVA CAU FOR NIA 95742 <br /> TPHg = Total Petroleum Hydrocarbons as Gasoline MW-4 l PHONE 916852 91 t9-FAX 916852 9132 <br /> TPHd = Total Petroleum Hydrocarbons as Diesel x Caltrans Stockton Yard Facility <br /> B r Benzene I O kd MFY <br /> T = Toluene MW-5 <br /> x l 1604 South $ Street Cancentrations of <br /> Petroleum <br /> E = Ethylbenzene � Stockton, California Hydrocarbons <br /> X = Total Xylenes GEOCON Prol No S8100-06-11A in Groundwater <br /> All Concentrations in Micrograms per Liter(ppb) Approximately 40 Feet South � <br />' op to Proposed Well Location I Task Order No 10-5F1000-02 ,lune 1995 Figure 6 <br /> i <br />