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i <br /> B BEND IN SEND IN SECTION <br /> INTERSECTION SECTION <br /> OFAA ` I Bt <br /> MW-2R MW-3 <br /> V 2pro]20' V-3 MW 9 V-4 Pro17 MW-S MW 11 O <br /> 1D rol 15 MW f4 <br /> CLAY/SILT <br /> FORMER UNDERGRO p CLAY/SILT 10 LEGENQ <br /> 0 STORAGE TANK COMP PEA GRAVEL EXCAVATION BACKFILL <br /> t1mIQ <br /> � ttl>m� - MW-14 GROUNDWATER MONITORING WELL LOCATION <br /> `CLAYEY SAND�a � <br /> ]eaQ � � _ AND DESIGNATION <br /> -�R"t,- r °'r«w may'' <br /> 10- V-2 SOIL VAPOR EXTRACTION WELL LOCATION <br /> tORR -20 <br /> =,"- a� �Y .��.. <br /> ax£tip r= CLAYS AND DESIGNATION <br /> y ;' ttnmam r s o <br /> !� � y prof PROJECTED ONTO LINE OF SECTION IN FEET <br /> LU SAND ! inn= � 30 m = STATIC GROUNDWATER LEVEL,7~30.96 <br /> LL I C1AY �4 ts`sg �yYMQ` " <br /> z 20 e O <br /> o x,.� _ _ Q TPH gBENZEN> CONCENTRATION IN SOIL IN <br /> a 1a amt . ? - - - - 7 - - - - PARTS PER MILLION(ppm) <br /> LU SANAySAND 1 `10+TPH g ISOCONCENTRATION CONTOUR IN ppm <br /> CLAY/SlLT o tjQ NOT DETECTED <br /> -30 & co <br /> `"g 7 C <br /> HISTORIC HIGH GROUNDWATER LEVEL <br /> 0 2-89 <br /> SCREENED INTERVAL(fYP) m <br /> cL4rISrLr ltm so 2 7---- HISTORIC LOW GROUNDWATER LEVEL <br /> -4Q SAND PACKED INTERVAL t r j 10-92 <br /> CLAY/SILT <br /> CALCULATED VERTICAL AND HORIZONTAL <br /> RADIUS OF INFLUENCE OF SOIL VAPOR <br /> EXTRACTION WELLS <br /> LAYE!' � - --- ------- r 6D <br /> SANDISANDso- <br /> CLA <br /> -' SAND <br /> CLAY/SILT <br /> -60 NOTE CROSS-SECTION DEPICTS ANALYTICAL DATA COU.ECTED PRIOR TO <br /> OPERATION OF THE SOIL VAPOR EXTRACTION(SVE)SYSTEM(BLACK PRINT),AND <br /> ANALYTICAL DATA FROM SOIL BORINGS(GRAY PRINT)THAT DEFINES THE EXTENT <br /> OF HYDROCARBONS REVISED NOVEMBER 29 1995 <br /> 11 PACIFIC FORMER CHEVRON SERVICE STATION 9-1618 45 East Ha� Wa ENVIRONMENTAL �E td�9 y at EI Dorado Avenue FIGURE <br /> GROUP INC HORIZONTAL V=20' Stockton Cadtomia 5 <br /> VERTICAL 1'=10PROJECT <br /> GEOLOGIC CROSS-SECTION B-B -BEFORE SVE SYSTEM OPERATION(NOVEMBER 1990-NOVEMBER 1992) 320-133 7B <br />