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EXPLANATION <br /> MONITOR WELL <br /> O SOIL BORING LOCATION <br /> - - - PROPERTY BOUNDARY <br /> YOSEMITE HIGHWAY (HWY 120) B BENZENE IN µg/L <br /> TPHG TOTAL PETROLEUM HYDROCARBONS <br /> AS GASOLINE IN ug/I <br /> SIDEWALK MTBE METHYL-TERT-BUTYL-ETHER IN µg/L <br /> °L_at <br /> a�1W' 3 74 B a[ (13 73) POTENTIOMETRIC SURFACE ELEVATION <br /> °C °L °` OVERHEAD%POWER LINE ( ) <0 5 <br /> TPHG=<50 <br /> i% -15 MTBE-8 6 -1375— POTENTIOMETRIC SURFACE CONTOUR <br /> - - - - - - - -- - - - - - - _ - - (CONTOUR INTERVAL = 0 05 FT) <br /> BMW-3* %_ GP-4 I -- -�--- GROUNDWATER FLOW DIRECTION <br /> r B=<05) 4`1p }480 I AND GRADIENT (i) <br /> ! TPHC=<50 p <br /> FORMER r <br /> ! MTBE-<5 ENSE , <br /> I GP- _ ISLAND <br /> I - i <br /> I is UST I <br /> II I A� --5' - MW-1 <br /> RMER i *(1388) <br /> Io GP-5 �___IUST _-_�O 8-<05 <br /> I GP-2 TPHG=<50 iLAJ N <br /> MTBE-<5 <br /> w I GP-1 <br /> 9 w <br /> a � ' PLANTER 1 <br /> N ' 0 30 <br /> < WALKWAY <br /> + - - - 60 <br /> F- <br /> a: a <br /> a ' ' <br /> OVERHANG APPROX. SCALE IN FEET <br /> I I <br /> w i 7—ELEVEN I <br /> FACILITY <br /> NO 17647 1-ELEVEN, INC. <br /> ' I <br /> I <br /> FACILITY NO. 17641 <br /> 1048 WEST YOSEMITE AVENUE <br /> If <br /> PLANTER � � - - - - - -; MANTECA, CALIFORNIA <br /> - - - - - - - - - - - - - - - - - - - - - 781721 <br /> DRAWN BY E SIMONIS DATE 11-20-01 <br /> DRAFTED BY CHECKED gy DEN HOLMES DATE 11-21-01 <br /> DATE <br /> POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> IT CORPORATION CONCENTRATION MAP (10/05/01) <br /> 17647GWC 1 OO 1 FIGURE 2 <br />