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1 i <br /> 1 1 <br /> 1 1 <br /> LEGEND ', I <br /> ® GROUNDWATER MONITORING WELL(CRA) I <br /> M FINAL EXCAVATION CONFIRMATION SOIL SAMPLE(SAIC, 10-06) i I <br /> --- FORMER PIPELINES-APPROXIMATE LOCATION <br /> PROPERTY BOUNDARY <br /> ------------ --------PROPOSED DEVELOPMENT <br /> -----------—--PARCEL BOUNDARIES I <br /> GAS LINE I <br /> EXCAVATION FOOTPRINT <br /> 25 TPHc CONCENTRATION CONTOUR E <br /> DASHED WHERE INFERRED <br /> 1 <br /> I F <br /> (41) TPHc CONCENTRATIONS ARE IN <br /> MILLIGRAMS PER KILOGRAM ftikg) I <br /> NOTES: ' <br /> • FBG-FEET BELOW GROUND <br /> + TPHc-TOTAL PETROLEUM HYDROCARBONS AS CRUDE OIL ' <br /> + SOIL TPHo CONCENTRATIONS SHOWN ONLY FOR BORINGS MW-14 <br /> WHERE DETECTED ABOVE REPORTING LIMIT OF 25 mg/kg 1� e <br /> 1 F <br /> 1 F <br /> i 1 <br /> I � <br /> MW-12 I 1 <br /> , 1 <br /> i 1 I <br /> i + <br /> 3 + <br /> ' I <br /> ' ' I <br /> i 1 e <br /> 1 F / <br /> AREA 11 I I <br /> MW-13 ' <br /> 25 + <br /> 1 1 <br /> 2503 <br /> 25 ' <br /> 1 <br /> 25 25 250 , + <br /> 1 1 <br /> 25.4 1 � <br /> f• <br /> ----^------ — 250 250 i2,500 a:mr EX17-18B46 <br /> I 2,5©0 <br /> MW-11 -18 848 (110) <br /> i <br /> FMX X17-18-B54 x <br /> EX-17-18_869 m_ s 4 4 4 E•` *_^(590) <br /> It 1 (5,100) Raz i �0 e'Ek17-18 856It ; <br /> R -i.l , 1 <br /> E I�-. (3,000) , <br /> I EX17-1$-860 e,T EX17-18 B58="3,000) I <br /> 1 I <br /> , I <br /> I F 1 <br /> 1 <br /> I � I <br /> F <br /> 0 40 80ft f I <br /> I I <br /> 1 <br /> figure 12 <br /> TPHc CONCENTRATIONS IN SOIL 15-25 FBG <br /> CALIFORNIA AREA 11, NEIGHBORHOOD C AND D <br /> 09) <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> SOURCE:SAIC,ELLL2008 AND SAN JOAOUIN COL€NTY ASSESSOR'&PR BK.2Q9.45, Tracy Califomia <br /> MONITORINGiWELLLOCATIONSINW-2THRUMWIBANOSOILVAPORPROBE �LOCATON SVP-1 BASED ON MID COAST EN¢INEERING$URVEY DATER lWao9. <br /> 60222-95(011)GN-WA012 DEC 15/2010 <br />