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EXPLANATION <br /> MONITORING WELL <br /> Q SOIL BORING <br /> NESTED SPARGE/VENT WELL <br /> 1MW-4 — -- — — PROPERTY BOUNDARY <br /> T9-0 5 I B BENZENE IN Ag/L <br /> ITPHG-< TPHG TOTAL PETROLEUM HYDROCARBONS <br /> MTBE-<0 5 AS GASOLINE IN {eg/I <br /> I Do-1 9 I MTBE M ETHYL—TERT—BUTY L—ETHER IN µg/L <br /> DO DISSOLVED OXYGEN IN mg/L <br /> I 7—ELEVEN I NA NOT ANALYZED/NOT AVAILABLE <br /> FACILITY (1715) POTENTIOMETRIC SURFACE ELEVATION <br /> NO 21756 <br /> —1710 POTENTIOMETRIC SURFACE CONTOUR <br /> (CONTOUR INTERVAL = 0 02 FT) <br /> Z ---�---- GROUNDWATER FLOW DIRECTION <br /> AND GRADIENT (1) <br /> I . GP-1 I a <br /> ` B-<O 5 <br /> I /\ TPHG=<50 <br /> 1 <br /> W <br /> `0 05 <br /> D -19 O <br /> `° / a(1 -08 T/ +MW-3 <br /> B-<O5 <br /> N <br /> (17 11) <br /> TPHG-<50 FORMER UST's <br /> MTBE-2.5004SP2"" <br /> Q GP-2 <br /> I DO-5 3 r-- t r--Z r Z 30 60 <br /> GP-6 i I i I ISPV 1 0 <br /> oo o <br /> I �11� � --'----- I i i i I i � APPROX SCALE IN FEET <br /> ' GP 3^`` 1 GP-5 <br /> ------ J O <br /> L--1 L--1 L-- I • <br /> 1-ELEVEN, INC. <br /> I �� \ 0 GP-4 FACILITY NO. 21756 <br /> I / MW-2 853 EAST YOSEMITE AVENUE <br /> (17 15) — _ — _ MANTECA, CALIFORNIA <br /> — — — — B-<0 5 781723 <br /> _< <br /> MTBE-4 4 DRAWN BY E SIMONIS DATE 6-20-02 <br /> DO-2 0 DRAFTED BY C DOUGLAS DATE 6-20-02 <br /> E. YOSEMITE AVENUE CHECKED BY DATE <br /> POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> s1ww- CONCENTRATION MAP (04/08/02) <br /> Shaw E&1,Inc. FIGURE 2 <br /> 21754GMIC04D <br />