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4r qr r <br /> x x <br /> TPNg8=1300 <br /> TPHTPNg=<50 <br /> x x TPHd 70 x =<50 <br /> 0 B <05 <br /> 5 <br /> x x x x <br /> =< =<5 <br /> MTBE=<5 MyY3 rPHg=<5D <br /> BMW 4 Former rPHB=<05 <br /> 2� Former 5,000 Gallon �1fW-1 .10 000 Gallon MTBE=<5 <br /> Diesel UST- 1 Gasoline;ST <br /> ApproximOle�I 1� _ <br /> rPHg=<50 Excavation / r Mw a Training Room/ <br /> TPHd=<50 Limits / 10� TPNg=9 904 ,� OO TPHg=<50 Environmental Office <br /> 8=<05 / TPHd=2,100 TPHd=<50 <br /> MTBE=<5 8=2800 �� 8=<05 <br /> a i MTBE=74 1 x MTBE=<5 <br /> � fl <br /> Noll <br /> MW 5@ Former i vw 2 x�Tx —�— Mw 12 <br /> Pump Island Gas Z�i / O <br /> MW <br /> House <br /> � 6 -Former ��� <br /> TPHg=<50 �i tp•' Pumplsland <br /> ffice <br /> TPHd=<50 MW 2 ` �0 ���MW 1 TPNg=<50 �railer� <br /> B=<05 i Q4' TPHd=<50 <br /> TPNg=<50 MTBE_<5 l ,1 Maintenance <br /> 8=<45 <br /> TPHd=<50 / M78f=<5 Regff Ceal <br /> 8=<05 Q <br /> MTBE=<5 —— TPHg=<5D <br /> ~ TPHg=<50 TPHd=<50 <br /> TP Ng=1000 TPHd=<50 8=<05 <br /> TP 370 B-<05 MTBE=<5 °Mw� <br /> B=140 MTBE=<5 <br /> MTBE=<5 <br /> BMW 6 <br /> TPHg=<50 <br /> TPHd=<50 <br /> 8=<05 <br /> SE <br /> E <br /> MW voe Sealand Container Storage Trailer <br /> d=<54 <br /> -X <br /> x <br /> LEGEND F4FH < D <br /> MB5 <br /> O GEOCON Groundwater Monitoring Well Location 0 40 <br /> Maintenance$ Ix <br /> x <br /> Electricians i Scale in Feet <br /> $ Alton Geoscience Groundwater Monitoring Wells Location warehouse <br /> ® GEOCON Vapor Extraction Well Location OEMBMW 11 <br /> UST Underground Storage Tank <br /> CONSULTANTS, INC �� <br /> Historical Groundwater Flaw Direction 11975 SUNRISE PARK UR -SUITE 100 RANCHO COROOVA CA 95743 �1 <br /> PHONE 916852 9118-FAX 918852 9132 <br /> 1,000— — —TPHd Isoconcentration Contour(ug/1) Stockton Yard Maintenance Station <br /> 1,000----TPHg Isoconcentration Contour(ugA) 1604 South B Street PETROLEUM <br /> TPNg = Total Petroleum Hydrocarbons as Gasoline(ug/l) San Joaquin County, California HYDROCARBONS <br /> TPHd = Tota!Petroleum Hydrocarbons as Diesel(ug/I) IN GROUNDWATER- <br /> GEOCON Prol No S8475-06-24F JUNE 2003 <br /> 8 = Benzene(ug/l) <br /> MTBE= Methyl tert-butyl ether(ug/I) Task Order No 10-987901-MU July 2003 Figure 3 <br />