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o PRELIMINARY SITE CONCEPTUAL MODEL W <br /> G uwi VIEW LOOKING NORTH p <br /> 0 a <br /> o o <br /> o 0 o <br /> REMOVED HEATING OIL UST .O.� v. a W <br /> i 3~ 04o Ld <br /> CALIFORNIA STREET N �U U a U 0 0 Lu <br /> SIDEWALK SOUTHBOUND NORTHBOUND <br /> v o_ <br /> SILTY SAND Q N 0 ic <br /> SILTY AND fit; O <br /> 10 CLAYEY SANDS CLAY 10 a. <br /> U W w L2 <br /> WOfQ <br /> 20 NZU <br /> 20 CLAY O <br /> WW �z <br /> Q <br /> —Y O <br /> Z U F <br /> 30 APPROX. GROUNDWATER SILT 30 >-00 N OV <br /> ELEVATION 2008 z a LL N <br /> y <br /> 40 ��, r 40 V 0 <br /> y <br /> F <br /> x v <br /> sANbU ,. a <br /> 50 SILTY SAND .°` x:,.•;� 50 a <br /> CLAYS AND <br /> 60 SILTS'^c <br /> 60 <br /> �.ds. SAND <br /> 70 70 <br /> �� :SAND /� <br /> N <br /> 80 THIN CLAYS AND SILTY CLAY 80 <br /> WITH THIN LAYERS OF DENSEWIN <br /> m N 5m A <br /> 0 <br /> x <br /> 90 90 m e <br /> SANDY SILT AND CLAYEY SILT SOILS e 8 a e x <br /> 100 100 <br /> i c r <br /> Al <br /> LEGEND <br /> CL = CLAY —•-- = APPROXIMATE EXTENT OF GROUNDWATER WITH 500>D>50.0 <br /> ML = SANDY SILT = APPROXIMATE EXTENT OF GROUNDWATER WITH 50.0>D>5.0m <br /> SC = CLAYEY SAND —•-- = APPROXIMATE EXTENT OF GROUNDWATER WITH 5.0>D>0.50 8 i <br /> SM = SILTY SAND —•—•— = APPROXIMATE EXTENT OF GROUNDWATER WITH 0.50>D>0.050 G z <br /> SP = POORLY GRADED SAND = *APPROXIMATE EXTENT OF SOILS WITH 5000>D>500 <br /> CL/ML= CLAY AND SILTY SAND = APPROXIMATE EXTENT OF SOILS WITH 500>D>50 0' <br /> D = TOTAL PETROLEUM HYDROCARBONS QUANTIFIED AS DIESEL = APPROXIMATE EXTENT OF SOILS WITH 50>D>5.0 V j <br /> mg/kg= <br /> (mg/kg <br /> FORPSOI KILOGRAM OR GROUNDWATER) • = UVOST DATA USED FOR INTERPRETATION FIGURE s <br /> ® = PROPOSED SOIL SAMPLE DEPTH AND LOCATION <br /> mg/L= MILLIGRAMS PER LITER = PROPOSED GROUNDWATER SAMPLE DEPTH AND LOCATION 5 ` <br /> UST = UNDERGROUND STORAGE TANK ® HORIZ.®O 44 <br /> SCALE IN FEET NT No. / <br /> 54018_FS <br />