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EXPLANATION <br /> MONITOR WELL <br /> 0 PROPOSED SOIL BORING LOCATION <br /> r - - - - - - - - - - - - - - - - - � � PROPOSED WELL LOCATION <br /> I eW—a F — — — <br /> - PROPERTY BOUNDARY 1 <br /> B BENZENE IN µg/L <br /> I TPHG TOTAL PETROLEUM HYDROCARBONS <br /> AS GASOLINE IN µg11 <br /> MTBE METHYL-TERT-BUTYL-ETHER IN µg/L <br /> 00 DISSOLVED OXYGEN IN mg/L <br /> 7-ELEVEN I NA NOT ANALYZED <br /> FACILITY <br /> NO 21756 I (14 87) POTENTIOMETRIC SURFACE ELEVATION <br /> I I <br /> —1485— POTENTIOMETRIC SURFACE CONTOUR <br /> (CONTOUR INTERVAL = 005 FT) <br /> GROUNDWATER FLOW DIRECTION <br /> 8=71 I AND GRADIENT (1) <br /> ' H =600 <br /> MTBE=120 <br /> DO=15 ` 8-<05 <br /> I MW-1 `� TPHG-450 I <br /> (1a 75) .0 MTBE-<5 <br /> `.$ 00=2+ N <br /> MW-3 I <br /> #(1481) <br /> 1 <br /> r---i r---i r---i I <br /> I 0 30 60 <br /> I 11 II I I <br /> kl II I <br /> O � � � � <br /> a I APPROX SCALE IN FEET <br /> I , I II II I <br /> I II Ik k <br /> --j - -- I 1-ELEVEN, INC. <br /> FACILITY NO 21156 <br /> `lk ♦(M-2 853 EAST YOSEMITE AVENUE <br /> — 6=<0 5 — — — — — MANTECA, CALIFORNIA <br /> TPHG=<50 i 781723 <br /> 1 <br /> 00=3 DRAWN BY E SIMONIS DATE 11-20-01 <br /> 0 DRAFTED BY DEN HOLMES DATE 11-21-01 <br /> CHECKED BY DATE <br /> POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> IT CORPORATION CONCENTRATION MAP (10/04/01) <br /> 21756GWC0601 FIGURE 2 <br />