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LEGEND <br /> • GROUNDWATER MONITORING WELL(CRA) <br /> M FINAL EXCAVATION CONFIRMATION SOIL SAMPLE(SAIC,8-06) <br /> FORMER PIPELINES-APPROXIMATE LOCATION <br /> - — PROPERTY BOUNDARY ' <br /> ----------------- PROPOSED DEVELOPMENT <br /> —-------— -- —--PARCEL BOUNDARIES � MWS <br /> - - GAS LINE <br /> OAREA <br /> EXCAVATION FOOTPRINT <br /> --25 TPHc CONCENTRATION CONTOUR <br /> DASHED WHERE INFERRED <br /> (41) TPHc CONCENTRATIONS ARE IN <br /> MILLIGRAMS PER KILOGRAM(mg/kg) . MW-5 I <br /> NOTES: MW-3 <br /> • FBG-FEET BELOW GROUND I <br /> • TPHc-TOTAL PETROLEUM HYDROCARBONS AS CRUDE OIL <br /> • SOIL TPHc CONCENTRATIONS SHOWN ONLY FOR BORINGS <br /> WHERE DETECTED ABOVE REPORTING LIMIT OF 25 mg/kg <br /> ® MW-15 <br /> MW_7 <br /> 1 <br /> 25 ` <br /> 250 ®=S+ExB•B � Mw-8 <br /> 2,500 . ►:[s6o) <br /> I <br /> (23,000) - ._ <br /> I ( ------------------- ------- ----- ---------------. <br /> --•___- .. __ .__.----- --- - -- - ti <br /> f <br /> AREA 5 <br /> 0 40 8011 <br /> I <br /> i <br /> figure 9 <br /> TPHc CONCENTRATIONS IN SOIL 15-25 FBG <br /> CALIFORNIA AREAS 4 AND 5, NEIGHBORHOOD C AND D <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> SOURCE:SAIC,SLL L2008 ON SAN 2 THR N COUNTY ASSESSOR'S�5 PR B�c2vea�. Tracy Ca/ifomia <br /> MONITORING WELL LOCATIONS MW-2 THRU MW-1BANDSOILVAPOR PROBE � <br /> LOCATON SVP-1 BASED ON MID COAST ENGINEERING SURVEY GATED 10128m, <br /> 60222-95(011)GN-WA009 DEC 1412010 <br />