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z <br /> I <br /> r EXPLANATION <br /> NORTHGATE DRIVE E2-w-13 SAMPLE LOCATION WITH <br /> o IDENTIFICATION AND DEPTH BGS <br /> 1 <br /> Q GEOPROBE SOIL BORING LOCATION <br /> f1sd <br /> MONITORING WELL <br /> PLANTER PLANTERPROPERTY BOUNDARY <br /> (16 60) POTENTIOMETRIC SURFACE <br /> ELEVATION <br /> / DATA NOT USED IN CONTOURING <br /> CANOPY PunGROUNDWATER CONTOUR <br /> / \ — <br /> 170 -- CONTO NR INTO V LFT 0 2 FT) <br /> GP-1V <br /> ,� \ OW LINE <br /> GP-2 I — -- (WITH GROUNDREC IONDWATER LARROW) <br /> �T3- r75- MW-1 <br /> MW-2 0 �� ii *T1 15 06 60) B BENZENE IN yg/L <br /> (17 i1 I i B=<03 <br /> 4 i <br /> B=245 7) \� � �� MBE=<5 <br /> TPHG TOTAL PETROLEUM HYDROCARBONS- <br /> TPHG <br /> MBE=4490 \ t I / ' I D0=3 8 AS-GASOLINE IN µg/L <br /> Dcc)=1 3 T3-s-15 t l I j -3 I <br /> I7 35* MTBE METHYL-TERT-BUTYL-ETHER IN <br /> LOCATION OF B=28 1 <br /> FORMER USTs �_ I i _ TPHC=1550 IN µg/L <br /> SIDEWALK T2-S-11 °i1 s-15 MTBE�3B w DO DISSOLVED OXYGEN IN Mg/L.DO�l <br /> L——— <br /> LIMI I 4C <br /> EXCAVATION I I I E2-E-13' <br /> IE2�-_ 13 I I I I Z <br /> E2-c-1 <br /> a <br /> ' LOCATION OF I I I I I = <br /> EXISTING USTS E1 i3 E1—CI-13Of <br /> O <br /> J E1-E-15 O <br /> ' 7-ELEVEN Z <br /> FACILITY 0 20 40 <br /> NO 19976 I <br /> I ♦ APPROX SCALE IN FEET <br /> ' MW-3 <br /> (17 35) THE SOUTHLAND CORPORATION <br /> B=<0 3 <br /> TPHG=<5 <br /> MTBE=644<s 7-ELEVEN FACILITY NO 19976 <br /> I 00=43 1399 NORTH MAIN STREET <br /> MANTECA, CALIFORNIA <br /> 103998 <br /> -- -—PfANTER <br /> ------ DRAWN BY B BUTLER DATE 11-30-98 <br /> --�--�------�- -- �-'----- -��-------�--------�-- DRAFTED BY DEN HOLMES PATE 12-02-98 <br /> CHECKED BY Sri T_ DATE <br /> POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> FLUOR DANIBL GTI <br /> ;CONCENTRATION MAP (09/16/98) <br /> 19976PSC FIGURE 3 <br /> i <br />