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LEGEND <br /> 0 GROUNDWATER MONITORING WELL(CRA) <br /> M FINAL EXCAVATION CONFIRMATION SOIL SAMPLE(SAIC,10-06) <br /> FORMER PIPELINES-APPROXIMATE LOCATION <br /> ----PROPERTY BOUNDARY <br /> ---------------------PROPOSED DEVELOPMENT I <br /> ————————PARCEL BOUNDARIES I <br /> GAS LINE <br /> OEXCAVATION FOOTPRINT <br /> --- .-- -- TPHc CONCENTRATION CONTOUR <br /> DASHED WHERE INFERRED <br /> (41) TPHc CONCENTRATIONS ARE IN <br /> MILLIGRAMS PER KILOGRAM(mgtkg) I <br /> NOTES: / <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 rtg/kg MW-14 / <br /> / <br /> / <br /> MW-12 / <br /> I <br /> I I / <br /> I I/ <br /> AREA 11 <br /> MW-13 I <br /> I <br /> MW-11 EX17-18$46 <br /> (660)'- ____ _ '— ~M EX17-18.854 EX17-18848 (110) <br /> + • EX77-18-059. -_-�' ~"' =-(590) (740 <br /> x(5.100) m.���1�r�m'EX17-1&856 <br /> I I I m m-EX77-18A57 <br /> EX1-7-18-B56"--3 <br /> (2,100)i I�=t, (4,6001 ( 000 1 <br /> I <br /> I <br /> I I <br /> 0 40 80ft <br /> I � I <br /> figure 12 <br /> CALIFORNIA TPHc CONCENTRATIONS IN SOIL 15-25 FBG <br /> AREA 11, NEIGHBORHOOD C AND D <br /> FORMER SHELL CENTRAL VALLEY CRUDE OIL PIPELINES <br /> SOURCE:SAIC,OBIttTlLaB*NSANJOAOUIN COUNTYI55ESSOR51Mp8KZ6Ai Tracy, Ca/ifomia <br /> MONRORINGWELLLOCATgNS 0W TTNRUINCE. AND504VAPDRPROBE <br /> LOCATON SW-1 BASED ON MID COAST ENGINEERNG SURVEY GATED fp�t000. <br /> 60222-95(011)GN-WA012 DEC 152010 <br />