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Mir M M M M M M ilm M M M M <br /> TPHg=68 TPHg=190 <br /> TPHd=b4 <br /> X-x x x TPHd=260 B=056 x x x x x <br /> 8=12 MTBE=c 5 TPHg=<50 <br /> MTBE=<5 MWA TPHd=<50 <br /> �MW4 For mer5000GaIlan � ,� Farmer B=<o5 <br /> . Diesel UST� 5 1 1 10 000 Gallon MTBE_<5 <br /> Appproximate Y f--\� �--Gasolene UST <br /> TPHg=52 Excavation Training Raom/ <br /> TPHd=<50 Limits 1 TPxg=5 Tea Mw ao TPHg=<50 Environmental Office <br /> B=<05 TPHd=810 TPHd=<50 <br /> MTBE 0 MTBE=89� 8=<05 <br /> MTBE_<5 <br /> � ❑ ❑ V 2 1 <br /> MW 50 Former EHqoaqusse <br /> MW 12Pump Island—b-MW 10 Former <br /> TPHg=<50 / Pump Island <br /> Office–� <br /> TPHd <br /> p s=<o5 j Mw 2� ,�0Mw 1 TPHd=<50 Trailer Maintenance <br /> TPHg=61 MTBE_<5 ' 8=<0 5 Regional <br /> TPHd=54 , 01 MTBE_<5 Office <br /> B=20 <br /> MTBE=c 5 <br /> TPHg=4100 TPHg=65 <br /> TPHd=410 TPHg=1/0 TPHd=<50 <br /> 8=930 TPHd=7! B=<OS <br /> MTBE=<5 <br /> 9=<05 MTBE=<5 i%W 7 <br /> MTBE=<5 <br /> �MW 6 <br /> rPHg=<50 <br /> TPHd=sr <br /> 8=<05 <br /> SE ff MTBE=<5 <br /> E <br /> MW 8@ Sealand Container Storage Trailer <br /> x x x x <br /> j TPHg=<50 <br />� TPNB=<0 5 0 40 <br /> LEGEND MTBE=<5 Maintenance& <br /> 0 GEOCON Groundwater Monitoring Well Location Electricians i Scale in Feet <br /> Warehouse <br /> 0 Alton Geoscience Groundwater Monitoring Wells Location BMW 11 <br /> ® GEOCON Vapor Extraction Well Location <br /> CONSULTANTS, INC <br /> UST Underground Storage Tank 11375 SUNRISE PARK DR -SUITE 100 RANCHO CORDOVA CA 95742 <br /> PHONE 918 952 9118-FAR 918 852 9132 <br /> Historical Groundwater Flow Direction <br /> Stockton Yard Maintenance Station <br /> 100----TPHd lsoconcentration Contour(ug/1) PETROLEUM <br /> 1604 South B Street <br /> California HYDROCARBONS <br /> ,Joaquin County <br /> TPHg = Total Petroleum Hydrocarbons as Gasolene(ug/I) San IN GROUNDWATER- <br /> TPHd = Total Petroleum Hydrocarbons asDiesel(ug/!) GEOCON Prod No S8475-06-24A JULY 2002 <br /> B = Benzene(ugA) <br /> MTBE = Methyl1ert-butylether(ug/1) Task Order No 10-987901-MU September 2002 Figure 3 <br />