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' o <br /> D' <br /> NODRTH FILL GRAVEL FILL GRAVEL SOUTH <br />' M 0 MW--12 MW-8 VW-2 MW-5 MW-10 0 LEGEND <br /> CID SILTY �pH 9 Soil analytical in milligrams <br /> & J D— — — — — ®Benzene per kilogram (mg/kg) <br />' u — SANDY CLAYS r POORLY 1 5' T <br /> SILTY& ND � > GRA ED SAN detectable concentrations <br /> A POORLY NDS SANDY CLAY5 ND — — — f shown <br /> 10 GRADED SAND,,?-' ND -- 1 r ND 10 <br /> 1or <br /> -7- Depth to groundwater during <br /> V <br /> NO NO U - monitoring3/30-4/2, 1999 <br /> ND SILTS, SILTY ND event <br />' a SANDS, & Q - <br /> y <br /> NO CLAYEY SANDS ND a O:f SZ Estimated depth to groundwater <br /> Q 20 � POORLY -v 20 <br /> ND POORLY ND GRADED SANDS N at time of drilling (1992 for <br /> W GRADED SAN "MW-" wells and 1996 for <br />' <br /> ND ? NO -_?_ in <br /> e__ND ND Z ,� wells <br /> ? <br /> J <br /> NO NO O <br /> Concentrations of TPH�-G and <br /> 30 NO ND 30 Benzene were not detected <br /> ND ND above the respective laboratory <br /> NO ND 0 detection limits in soil samples <br /> 1 collected from MW-10 or <br /> 15 <br /> O0 40 Na Das NO 40 m MW- 12 <br /> � POORLY <br /> GRADED SAND w <br /> LJ ND IJ W <br /> 1SANDY, ND — — —N — — <br /> CLAYEY SILTS f �?— — ---?--- — -- —?— <br /> Z & CLAYEY NO 2050 — - ? <br /> = SANDS 0006 041 ND 50 <br /> I— — ___ — — — —�- -- — _?— ? ? L SILTY & F=– <br /> `� ?� ND CLAYEY SAND � <br /> w <br /> p SILTY SANDS 0006 _ �` ? 1 a� ND p <br /> NO <br /> 60- ND 2 ND <br /> D <br /> NI) <br /> D 6� <br /> ND SILTY SANDS - NO <br /> I ND & POORLY SILTY SANDS <br /> GRADED SAND ? _ & POORLY <br /> 70 •� _ GRADED SAND <br /> n �- <br /> r 70 �,o x <br /> ~ s TD=715' _ SILTY SANDS P: <br /> NO V U <br /> SILTY TD=75 5' ? _ <br /> TQ=75 5' <br /> J fi <br /> I $0 SANDY CLAYS �s <br /> SANDY CLAY 80 wce <br /> TD=$1' TD=81 5' > <br /> Do 30 so <br /> HORIZONTAL SCALE <br /> OF CROSS SECTION <br /> g0 90 <br /> (IRS Greiner Woodward Clyde <br /> GENERALIZED GEOLOGIC <br /> 100 100 CROSS-SECTION D-D' <br /> 1604 SOUTH 8 STREET <br /> STOCKTON, CALIFORNIA <br /> 105 <br /> 105 Prod No 4104010004 Dote <br /> FEB 2000 <br /> Project CAD ID SECT-DD <br /> SOURCE, GEOCON ENVIRONMENTAL. CONSULTANTS, INC , DECEMBER 1996 CALTRANS STOCKTON YARD <br /> MAINTENANCE STATION Figure 2-4 <br />