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EXPLANATION <br /> SB-15 Proposed soil boring location <br /> / ♦ Proposed step-out boring location <br /> / Approximate location of soil boring <br /> / advanced by Geomatrix, 2002 <br /> (] Approximate location of soil boring <br /> and grab groundwater sampling <br /> location advanced by Geomatrix, <br /> 2002 <br /> A Approximate location of soil boring <br /> advanced by Geological Technics <br /> Inc., 1995 <br /> A Approximate location of soil boring <br /> advanced by Radian International <br /> <50 LLC, 1998 <br /> <0.5 <br /> 0.8 S Approximate location of monitoring <br /> 540 wells installed by Radian <br /> n International LLC, 1998 <br /> 0.3 <br /> 0.1 f" Estimated extent of residual <br /> 0.5 `— -'petroleum based on analytical data <br /> 0.5 J <br /> (TPHd or TPHmo> 100 mg/kg) or <br /> visual observations. <br /> -- Property boundary <br /> ABBREVIATIONS <br /> TPHc=Total petroleum hydrocabrons <br /> 6-02-06 quantified as crude oil analyzed <br /> ricuttural using EPA Method 8015M <br /> BTEX= Benzene,Toluene, <br /> Ethylbenzene,and Total <br /> Xylenes analyzed using EPA <br /> Method 8021 B <br /> Naph= Naphthalene <br /> Acen=Acenaphthene <br /> Fluor= Fluorene <br /> Phen= Phenanthrene <br /> Fluoran= Fluoranthene <br /> ` Pyren= Pyrene <br /> Benzo(a)A= Benzo(a)Anthracene <br /> Chrysene= Chrysene <br /> Soil analytical results in mg/kg <br /> Groundwater analytical results in pg/L <br /> Only detected PAHs constituents are shown <br /> SELECTED SOIL AND GROUNDWATER RESULTS <br /> AND PROPOSED BORING LOCATIONS <br /> Roberts Property (Former Vernalis Pump Station) <br /> 35500 Welty Road <br /> Vernalis, California <br /> 0 250 feet Project No. Figure <br /> I <br /> GEOMATRIX 5011 3 <br />