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EXPLANATION <br /> + MONITOR WELL <br /> 'O SOIL BORING LOCATION <br /> _ ._.._.._.. _ .._.-^..-..-.. _.._.._.._.._..� _..-.. _ PROPERTY BOUNDARY <br /> -�- tAW-4 B BENZENE IN µg/L <br /> r I TPHG TOTAL PETROLEUM HYDROCARBONS <br /> AS GASOLINE IN µg/1 <br /> MTBE METHYL-TERT-BUTYL-ETHER IN µg/L <br /> j = DO DISSOLVED OXYGEN IN mg/L <br /> I NA NOT ANALYZED <br /> 7-ELEVEN I (17.03) POTENTIOMETRIC SURFACE ELEVATION <br /> j <br /> FACILITY <br /> FACI <br /> NOLITY I -17.15 POTENTIOMETRIC SURFACE CONTOUR <br /> j (CONTOUR INTERVAL = 0.05 FT) ( I <br /> I ` <br /> j - GROUNDWATER FLOW DIRECTION <br /> I AND GRADIENT (I) <br /> I -�- •feo_P_OSED MONITORING VYEAd- <br /> 8=0.97 <br /> PH -9 0 = <br /> MTBE-2800 <br /> 00-0.7 8=0.98 <br /> I MW-1 `� TPHG.<100 j <br /> (17.03) MTBE-23 <br /> 00=0.9 N <br /> ` MW-3 I <br /> (17.10) <br /> 0 30 60 <br /> APPROX. SCALE IN FEET <br /> j <br /> L---J L--J L-- 7-ELEVEN, INC. <br /> FACILITY NO. 21156 <br /> MW-2 853 EAST YOSEMITE AVENUE <br /> -0-66 MANTECA, CALIFORNIA <br /> _.._.._.. _.._.. _..19) <br /> . <br /> ._.._.. <br /> B=0.66 _.._ <br /> TPHG-<100 781723 <br /> MTBE-27 DRAWN BY: E. SIMONIS DATE: 09-21-01 <br /> =0.8 DRAFTED BY: DEN HOLMES DATE: 10-01-01 <br /> CHECKED BY: DATE: <br /> _ POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> IT CORPORATION CONCENTRATION MAP (06/27/01) <br /> FIGURE 2 <br /> 21756CWC0601 <br />