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LEGEND <br /> — — Former Old Valley Pipeline <br /> Union Pacific Railroad <br /> o Fenceline <br /> Private Residence <br /> • Soil Boring Location Advanced by SAIC(2005) <br /> Monitoring Well Location <br /> ND <br /> 2/14/06 Approximate Location of Soil Boring <br /> TPHd 66 MW -5 2/14/06 DUP Advanced by Geomatrix(8/03) <br /> TPHdsg ND TPHg ND I ND Production Well(Location Estimated Based <br /> BTEX 0 OD25 TPHd BTEX ND ND ND on Figure 1 as Presented in ERM,1995a) <br /> All Other PAHs ND All PAHs ND ND Approximate Location of Soil Boring Advanced by <br /> Western Farm SB-15 Geomatrix(5/20-21/02) <br /> Service MW-5 O CPT Location Advanced by Radian(2/27/97) <br /> (office) Approximate Location of Soil Boring Advanced by <br /> Former Gasoline ERM-West,Inc.(5/9/95) <br /> WFSMW-1 *SB-13 OSB-14 Station S <br /> GMX-1u O GTI(9/30/96)Location of Soil Boring Advanced by <br /> ® Approximate Location of Soil Boring Advanced by <br /> Radian(7/15/98) <br /> State Highway 33 Western Farm Service Monitoring Well <br /> Aproximate Location of Soil Boring Advanced by <br /> SB-17 Geomatrix(11/11/99) <br /> GMX-12,"', <br /> Sample Name MW-5 7/21/05 Date Sampled <br /> Undeveloped TPHg ND 3 <br /> — — — - — — — — _ _ _ Analyte TPHd ND <br /> Concentration in <br /> MW-2(NS-SPO) & MW-3Micrograms Per Liter(ug/L) <br /> TPHg Total Petroleum Hydrocarbons Quantified as Gasoline <br /> I °da TPHd Total Petroleum Hydrocarbons Quantified as Diesel <br /> TPHdsg Total Petroleum Hydrocarbons Quantified as Diesel <br /> HB-6 with Silica Gel Cleanup <br /> Asphalt Parking <br /> SBA HB-3 BTEX Benzene,Toluene, Ethylbenzene,and Total Xylenes <br /> GMX-16 MW-1 PAHs Polynuclear Aromatic Hydrocarbons <br /> Buldings HB(NS-SPO) ND Not Detected at or above Laboratory Limit <br /> d (NS-SPO) Not Sampled. Separate Phase Oil Present. <br /> Percolation Unpaved Insufficient Water Volume for Sample Collection <br /> Pond Laboratory results from samples collected in <br /> Asphalt Parking MW4*B February 2006 <br /> 100,000 gal. (NS) <br /> water-AST Pump <br /> O House <br /> Drainage Dit <br /> gg MW-3 3/30/06 <br /> TPHTP 1000 <br /> TPHdsg 1100 <br /> BTEX ND' <br /> Anthracene 0.12 <br /> Benzo(a)anthracene 0.024 <br /> Benzo(b)luoranthene 0.03 <br /> Chrysene 0.18 <br /> Fluorenehene 0.10 <br /> Nahthelenels <br /> Phenanthrene °0.0744 PETROLEUM DISTRIBUTION <br /> Pyrene 0.25 <br /> All OtherPAH ND I IN GROUNDWATER First Quarter, 2006 <br /> US Can - Welty Road <br /> 35275 Welty Road Vernalis California <br /> drawn Ichecked ASM SCV approved CBD Figure <br /> date 4/12/06 Jdate 4/12/06 date 4/12/06 4 <br /> job no. file no. <br /> 0 100 06-6102-00-6178-310 <br /> E <br /> 1 inch=100 feet $Cj-17MAW adores <br /> Source:Basemap Modified From Geomatrix Monitoring Report 2003 From Science to Solutions"" Corporacion <br />