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t <br /> I \ <br /> Q <br /> Fn <br /> I � <br /> (O <br /> L <br /> rn <br /> MW-6 <br /> � <br /> (14 25) EXPLANATION <br /> z NORTHGATE DRIVE I MTBEG-5010 —^PROPERTY BOUNDARY* <br /> D0=0 92 PROPOSED NEW WELL <br /> 021 GROUNDWATER MONITORING WELL <br /> � Q SOIL BORING LOCATION <br /> 420 \ E2 + 13 SAMPLE <br /> LAND EPLO BGON. IDENTIFICATION <br /> 0w PLANTER MW-5A PLANTER <br /> Mw-52 (14 19 \ GEOPROBE SOIL BORING LOCATION <br /> a T C1 <br /> I MTB +183 74 <br /> DO EO 2 Mw-fi g BENZENE CONCENTRATON IN Jug/L <br /> I <br /> EPA 8020}j TPH-G TOTAL PETROLEUM-AS-GASOLINE <br /> {} COPY CONCENTRATION IN Ng/L <br /> PUMP (EPA 8015) <br /> Mw-1 MTBE METHYL-TERT-BUTYL-ETHER <br /> m tiq 25 ISLA (14 29) CONCENTRATION IN Ng/L <br /> 0 1 I B= tae (EPA 8260) <br /> w TPH-G=2,020 DO DISSOLVED OXYGEN <br /> w I GP-1 GP-2 I MTBE=347 CONCENTRATION IN mg/L <br /> T_ 0 0 Do-09 �43a ( } POTENTIOMETRIC SURFACE ELEVATION <br /> u I 3-Nf:'11sr. I I r T11N-15' FEET ABOVE SEA LEVEL <br /> 3Q <br /> MW-2,4(14 30) 0 I 1 I I } / POTENTIOMETRIC SURFACE CONTOUR <br /> 9=6990 58-1 I II <br /> TP��G753,zOp I I i] I Mw 1A CONTOUR INTERVAL 005 FEET <br /> MT5 T3-S-15, I I GP-31 <br /> r <br /> t m 0 DO GROUNDWATER FLOW DIRECTION <br /> 6 <br /> 3 II II f <br /> T2-S-15' <br /> LOCATION OF I <br /> o I SIDEWALK FORMER 115Ts �� I'I'�5- I MN-4A NM NOT MONITORED <br /> w <br /> E2-W-13' I Mw- (14 34) <br /> B=<0 3 <br /> u U E2-C-113 I Z TPH'MT; G=<50 <br /> L6 p LOCATION OF 3 ! ¢ DO� 3 5 <br /> U I EXISTING USTs E1-W-13 II <br /> 1-CI13 1-E-15 <br /> uiZ <br /> I ' 7-ELEVEN <br /> STORE <br /> 1 <br /> #19976 MB a2 14 27) I SCALE <br /> a TPH-G= 0 <br /> ' D"rog105 I I <br /> 0 20 40 FEET <br /> I I <br /> ' I 7-ELEVEN, INC <br /> 7-ELEVEN FACILITY NO 19976 <br /> 1399 N MAIN STREET <br /> — — — — — _PLANTER T _ _ _ MANTECA, CALIFORNIA <br /> FIGURE 3A <br /> N POTENTIOMETRIC SURFACE AND <br /> o DISSOLVED HYDROCARBON <br /> CONCENTRATION MAP (SHALLOW ZONE) <br /> 1/24/2000 <br /> 0 <br /> 7-ELEVEN, INC <br /> MANTECA. CALIFORNIA <br />