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LEGEND <br /> — — — Former Old Valley Pipeline <br /> Union Pacific Railroad <br /> ---- Property Boundary <br /> o Fenceline <br /> Monitoring Well Location <br /> Soil Boring Location(date) <br /> Approximate Location of Soil Boring <br /> Advanced by Geomatrix(8/03) <br /> SB-14-W-35 Production Well(Location Estimated Based <br /> SB-13-W-35 TPHg 200 on Figure 1 as Presented in ERM,1995a) <br /> TPHg ND TPHdsg 460 Approximate Location of Soil Boring Advanced by <br /> BTEX ND <br /> TPHdsg 500 MTBE ND Geomatrix(5/20-21/02) <br /> BTB ND Benzo(g,h,i)perylene 0.03 O CPT Location Advanced by Radian(2/27/97) <br /> MTBE ND Fluoranthene 0.02 <br /> Acenaphthene 0.2 Fluorene 0.01 ♦ Approximate Location of Soil Boring Advanced by <br /> Anthracene 0.03 <br /> Benzo(a)anthracene 0.03 Naphthalene 0.02 Private Residence ERM-West,Inc.(5/9/95) <br /> 04 0 <br /> Phenanthrene . <br /> Benzo(g,h,i)perylene 0.03 Q Approximate Location of Soil Boring Advanced by <br /> Chrysene 0.03 Pyrene 0.02 <br /> Fluoranthene 0.01 All Other Pahs ND SBGTI9/30/96-17-W-35 ( ) <br /> Fluorene 0.2 TPHg 480 ® Approximate Location of Soil Boring Advanced by <br /> Naphthalene 4 TPHd 150,000 Radian(7/15/98) <br /> Phenanthrene 0.4 TPHdsg 390,000 <br /> Western Farm Pyrene 0.2 SB-15 Benzene 0.6 Western Farm Service Monitoring Well <br /> Toluene IND <br /> Service All Other Pahs ND MW-5* Ethylbenzene ND Aproximate Location of Soil Boring Advanced by <br /> (office) Total Xylenes ND Geomatrix(11/11/99) <br /> GMX-7 MTBE ND <br /> Former Gasoline Naphthalene 0.2 <br /> SB-14 Station Phenanthrene 0.1 SB-17-W-35 Grab Grounwater Designation <br /> WFSMW-1 SB-13 GMX-10 All Other Pahs ND <br /> X TPHg 480 <br /> Analyte TPHd 150,000 <br /> TPHdsg 390,000 <br /> State Highway 33 Concentration in <br /> Micrograms Per Liter(ug/L) <br /> SB-17 TPHg Total Petroleum Hydrocarbons Quantified as Gasoline <br /> TPHd Total Petroleum Hydrocarbons Quantified as Diesel <br /> TPHdsg Total Petroleum Hydrocarbons Quantified as Diesel <br /> with Silica Gel Cleanup <br /> — _ — _ _ _ _ _ _ _ _ _ _Undeveloped _ _ BTEX Benzene,Toluene, Ethylbenzene,and Total Xylenes <br /> PAHs Polynuclear Aromatic Hydrocarbons <br /> ND Not Detected at or above Laboratory Limit <br /> BMW-3 yQ <br /> *GW­ o Notes <br /> I da <br /> 1.2005 Sample Locations are Shown in Blue Unless Otherwise <br /> Noted. <br /> H3-6 2.2005 Sample Locations with TPHd Concentration Higher than <br /> Asphalt Parking SBA HB-3 100 ug/L are Shown in Red. <br /> GMX-1 B MWA Asphalt Parking <br /> Buldings <br /> 'LGMX-9 HB-4 <br /> Percolation Unpaved <br /> Pond <br /> W1 )8( MW-4� <br /> 100,000 gal. <br /> water-AST Pump <br /> O House <br /> Drainage Ditch <br /> GRAB GROUNDWATER <br /> CONCENTRATION MAP <br /> March 14 & 15, 2005 <br /> QUS Can - Welty Road <br /> �i 35275 Welty Road,Vernalis,California <br /> drawn CTO Ichecked approved Fi9 ure <br /> ate 5/27/05 Jdate date <br /> job no. file no. <br /> 06-6102-00-6178-310 <br /> 0 100 <br /> Science Applications <br /> 1 inch=100 feet International Corporation <br /> An Employee-Owned Company <br /> Source:Basemap Modified From Geomatrix Monitoring Report 2003 ® <br />