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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 /> X Production Well(Location Estimated Based <br /> on Figure 1 as Presented in ERM,1995a) <br /> Approximate Location of Soil Boring Advanced by <br /> Geomatrix(5/20-21/02) <br /> O CPT Location Advanced by Radian(2/27/97) <br /> Approximate Location of Soil Boring Advanced by <br /> Private Residence ERM-West,Inc.(5/9/95) <br /> SB-15 I 1'b s. I 5'bqls. 47'b s. Q Approximate Location of Soil Boring Advanced by <br /> TPHg ND I ND ND GTI(9/30/96) <br /> SB-14 I 1'b s. I 5'b s. 141,5'b.s. TPHc ND ND ND <br /> TPHg I ND I ND I ND Approximate Location of Soil Boring Advanced by <br /> TPHc 120 ND ND Radian(7/15/98) <br /> Western Farm GMX-7 28.5'b s. SB-15 B-2 5'b s. 10'b s. 15'b s. 20'b s. Western Farm Service Monitoring Well <br /> Service <br /> ESB-13 1'b s. 5'b s. 40'b s. TPHc ND MW-5 GMX-6 28'b s. TPHg ND ND ND ND <br /> TPHd ND ND ND ND Aproximate Location of Soil Boring Advanced by <br /> TPH(office) c ND ND ND TIND IND ND PHc ND TPHmo 6 ND ND 11 Geomatrix(11/11/99) <br /> GMX7 <br /> Soil Sample Designation <br /> WFSMW-1 SB-13 SB-14 SB-2 6.5b s.16.5b s.26.5b s. <br /> SB-15 1'bgs. Depth of Soil Sample <br /> GMX-10 8'b s. 47.5'b s. GMX-10 Former Gasoline TPHg 1,940 1,800 1,050 <br /> GMX-6 Station TPHd 9,780 9,060 1 ,300 TPHg ND Concentration in <br /> TPHg ND ND TPHmo 10,100 6,830 5,400 Analyte Milligrams Per Kilogram(mg/kg) <br /> TPHc ND ND <br /> TPHg Total Petroleum Hydrocarbons Quantified as Gasoline <br /> State Highway 33 TPHd Total Petroleum Hydrocarbons Quantified as Diesel <br /> TPHmo Total Petroleum Hydrocarbons Quantified as Motor Oil <br /> GMX-12 27.5'b s 41.5'b s.48.5'b s. GMX-11 27.5'b s.46.5'b s. SB-17 TPHc Total Petroleum Hydrocarbons Quantified as Crude Oil <br /> GMX-8 5'b s. 10'b s. 15'b s. 20'b s. 22'b s. GMX-12 <br /> TPHc 8,000 ND ND 1,200 ND TPHg ND 72 ND TPHg ND ND GMX-11 ND Non Detected at or Above Laboratory Reporting Limit <br /> TPHc ND 15,000 ND IT ND ND HB-5 SB-17 1'b s. 5'b s. 42'b S. NA Not Analyzed <br /> TPHg ND ND 510 y <br /> 1111 11 111 i ii B-6 5'b s. 12'b s. 20'b s. g Notes <br /> B-7/MW-2 5'b s. 10'b s. 15'b s. 20'b s. 20'b s. 25'b s. 30'b s. 35'b s. 44'b s. TPHg ND 1,600 600 TPHc 17 60 6,700 <br /> TPHd ND 4,400 3,600 Undeveloped _ 1.2005 Sample Locations are Shown in Blue Unless Otherwise Noted. <br /> TPHg 0.13 1.2 0.23 1.9 (3.6 1600 470 120 69 - - TPHmo 51 2,800 2,300 - - - p <br /> TPHd ND 210 ND ND 141 11,000 1,200 230 ND B-6 B Historical Sample Data is Shown in Brown <br /> TPHmo 520 690 110 ND ND 9,200 940 250 ND GMX-8 b s. 15'b s. 20'b s. 22'b s. <br /> ,o,.nPr_2 2.2005 Sample Locations with TPHc Concentration Higher than <br /> MW-2 GMX-2 O TPHg ND ND 20 410 190 100 mg/kg are Shown in Red. <br /> 900 <br /> GMX-4 B-4-MW-3 TPHmo ND ND 6,000 2000 ,200 2300 ,000 <br /> GMX-4 I 31'b s. GMX-3 HB-3 <br /> TPHc I ND I ITPHc I ND HB-6 <br /> GMX-3 37'b s. �e�y <br /> TPHc 10,000 <br /> GMX-1 B 5'b s. 10'b s. 30'b s. 89'b s. �000, <br /> TPHc ND ND 5,100 ND <br /> Asphalt Parking <br /> Asphalt Parking <br /> Buldings <br /> GMX-9 MW-1 10'b s. 17.5'b s.29.5'b s. <br /> Unpaved TPHg ND 249 2,700 <br /> Percolation p TPHd ND 7,630 11,100 <br /> Pond GMX-9 5'b s. 10'b s. 30'b s. 59.5'b s. TPHmo 9 2,930 8,360 <br /> TPHc ND ND ND ND W1 J8( MW-4 <br /> 100,000 gal. <br /> water-AST Pump GMX-5 28N b s. GMX-5 <br /> O F1 House TPHc ND <br /> Drainage Ditch <br /> 9/M -4 5'b s. 10'b s. 15' s. 20'b s. 25'b s. 30'b�135'bqs. 40'b S. TOTAL PETROLEUM HYDROCARBON <br /> TPHd ND � ND <br /> IND <br /> IND <br /> IND <br /> ND ND ND ND DISTRIBUTION IN SOIL <br /> TPHmo ND ND ND ND ND ND ND ND ND March 2005 & Selected Historical Data <br /> US Can - Welty Road <br /> 35275 Welty Road,Vernalis,California <br /> drawn CTO Ichecked approved Figure <br /> atedate date <br /> 6/1/05 <br /> job no. file no. <br /> 06-6102-00-6178-310 <br /> 0 100 <br /> Science Applications <br /> 3 International Corporation <br /> Source:Basemap Modified From Geomatrix Monitoring Report 2003 1 inch=100 feet e An Employee-Owned Company <br />