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r r rr r rr rr rr rI Ir rI r rr rr Itr Ir <br /> Ak <br /> IMAGE X-REF I OFFICE I DRAWN SW I CHECKED BY APPROVED BY DRAWING 77M2-Al <br /> I Concord I R Barron1 121221,99 NUMBER <br /> LEGEND <br /> CARL'S JR w N PROPERTY BOUNDARY <br /> + MONITORING WELL <br /> 4 B BENZENE CONCENTRATION (ug/L) <br /> TPH-G TOTAL PETROLEUM HYDROCARBONS <br /> -AS--GASOLINE CONCENTRATION (ug/L) <br /> MTBE METHYL-TERT-BUTYL-ETHER <br /> CONCENTRATION (ug/L) <br /> — DISSOLVED OXYGEN <br /> MW <br /> -4 W I I DO CONCENTRATION (mg/L) <br /> W POTENTIOMETRIC SURFACE ELEVATION <br /> MTBE=2 CANOPY Q ( } (FEET ABOVE MEAN SEA LEVEL) <br /> DO=1 0 �� POTENTIOMETRIC SURFACE CONTOUR <br /> (CONTOUR INTERVAL = 0 05 FT) <br /> GROUNDWATER FLOW DIRECTION <br /> L o <br /> PAD Z <br /> C <br /> MW- <br /> 7-ELEVEN ELL ARAN NED <br /> BUILDING # <br /> 3 > SCALE <br /> {--4 88) \ <br /> TPN G33=95' 0 30 60 FEET <br /> W-5 MTBE 0 <br /> D0=1 3 <br /> (-4 93) <br /> B=21 4 <br /> MTBE=2857 U <br /> V <br /> 7-ELEVEN, INC <br /> mw_2 D0=1 0 '�� 7-ELEVEN FACILITY No 20632 <br /> 4627 DAVINCI DRIVE <br /> (-503) ` Fm STOCKTON, CALIFORNIA <br /> B=0 4sO R! lON 779962 <br /> TPH-G-3,490 <br /> MTBE=7,450 <br /> DO=1 S FIGURE 2 <br /> POTENTIOMETRIC SURFACE & <br /> DISSOLVED HYDROCARBON <br /> CONCENTRATION MAP <br /> 11/24/99 <br />