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it <br /> EXPLANATION <br /> r - - - <br /> —PROPERTY BOUNDARY <br /> NORTHGATE DRIVE } <br /> � + � GROUNDWATER MONITORING WELL <br /> r SOIL BORING LOCATION <br /> E2-w-13 SAMPLE LOCATION IDENTIFICATION <br /> • AND DEPTH BGS <br /> ' MW-5A (15 75)K PLANTER - — —� 3 Q GEOPROBE SOIL BORING LOCATION <br /> PLANTER 13=2 45 \ <br /> 1 MTBE�6 470 BENZENE CONCENTRATON IN pg/L <br /> D0=2 OS <br /> MW-5 (16 53) ! TPH-G TOTAL PETROLEUM-AS-GASOLINE <br /> 8=190 CONCENTRATION IN Ng/L <br /> TPH-G=3390 <br /> ,6E DD=O 24 � MTBE <br /> CONCENTRAMEIHYL-TETION iN g/L ER <br /> 1 1PUMP <br /> CANOPY ISLAND DO DISSOLVED OXYGEN <br /> CONCENTRATION IN mg/L <br /> Olkr ( ) POTENTIOMETRIC SURFACE ELEVATION <br /> ' I GP-1 GP-2 FEET ABOVE SEA LEVEL <br /> v _ _ _ v MW-1 (16 72) * DATA NOT USED IN CONTOURING <br /> 73—Nr15• j Tl�N-15 B=335 DEEP WELL <br /> I 1 6 8 I r r MTBECI 24000 <br /> I MW-2 (16 66) II 1 D0=01� POTENTIOMETRIC SURFACE CONTOUR <br /> TPH-G=55400 56-1 i r II 1 1 / CONTOUR INTERVAL 0 2 FEET <br /> MTB <br /> � $5 5 T34 15• I 1 I GP-3 I MW-1 A {16 45)*�� <br /> I $=3 <br /> I 17 Q 1 i l I 1 MTBEGIO 60 Bw<D 3 (17 a�) _` GROUNDWATER FLOW DIRECTION <br /> LOCATION OF T2- -15- II - <br /> _15 DO=O 23 TPH-G=<50 <br /> II FORMER USTs I I I • I Do 0 5 5 <br /> SIDEWALK [ { I___—I <br /> I � <br /> E2—E-13 I Lai <br /> 1 Of <br /> I � <br /> j7.'2 E2-W-13 MW-4 (17 Do <br /> ' E2-C-13 B=[D 3 <br /> M50 <br /> TBE=<550 <br /> I •17 i Q DO=6 95 N <br /> I LOCATION OF I g f, <br /> EXISTING USTs E1— — d <br /> El—E-15 � f <br /> I 7—ELEVEN 0 20 40 <br /> STORE 6 1 <br /> ' I #19976 MW-3 (17 76) I SCALE FEET <br /> 13=0 36 i <br /> I TPH-G=99 8 <br /> 1 MTBE= } 7'-ELEVEN, INC <br /> ' <br /> oo=0 177 <br /> I STORE No 19976 <br /> 1399 N MAIN STREET <br /> I !, MANTECA, CALIFORNIA <br /> ' I 779956 <br /> - - - - - - - - - - - - PLANTER - - - - - - _ - t DRAWN BY ES DATE 7/21/99 <br /> DRAFTED BY DL y r DATE 7/l/99 <br /> I CHECKED BY ( � DATE <br /> I <br /> ' POTENTIOMETRIC SURFACE AND <br /> DISSOLVED HYDROCARBON <br /> CONCENTRATION MAP <br /> � I (6/4/99) <br /> IT CORPORATION 1 <br /> 1 I FIGURE 3 <br /> PSDH0699 <br /> r, <br /> J <br />