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i <br /> SOIL CLASSIFICATION CHART ADDITIONAL MATERIAL SYMBOLS <br /> i .MAJOR DIVISIONS SYMBOLS TYPICAL SYMBOLS TYPICAL <br /> GRAPH LETTER DESCRIPTIONS GRAPH Lt I i tK DESCRIPTIONS <br /> I D"UL —. <br /> WELLTADED GRAVEL.GRAVEL. -,y•,• <br /> GRAVEL GCL ELS �C c GW SANOLSRYLNES - •, CC Cement Concrete <br /> AND n� <br /> GRAVELLY RAVELS <br /> OR NO NNW DOO oOC GP POORLY-GRADED GRAVELS, <br /> • <br /> SOILS D o o GRAVEL••SAND MIXTURES <br /> AC Asphalt Concrete <br /> O <br /> COARSE GRAVELS WITH a GM y�LTa,°n •0RAva. "N0 CR Crushed Rock/ <br /> GRAINED Mor+ETHAN sa% FINES. <br /> 1/1 SOILS OF COARSE Quarry Spells <br /> FRACTION <br /> RETAINED ON NO. (APPRECASLfi M(cUNY CLAYEY GRAVELS GRAVEL•SAND. <br /> 1 4 SIEVE OFFINES) C7�i NdYM87URES <br /> To saiU <br /> wELL°RADGo SANDS' <br /> G <br /> RAVELL <br /> Y <br /> Is <br /> Forest Duff/Sod <br /> 11 rt FAN SANDS SW s <br /> MORE Rumen ON <br /> SAND <br /> AND SJTTLEo va+r:sy- <br /> 2SSIIEVEE ON No. SANDY • SP GGRRAVELLLYYSAADND v7 - <br /> SOILS Measured groundwater level in <br /> exploration,well,or piezometer <br /> MORE TWIN 50% SANDS WITH SM SILTY SANDS,SAND•SILT GOF FRAroundwater FINES "exTUREs exploration observed at time of <br /> ON <br /> • <br /> PASSING No.4 tAPPReeuSLE AMOUNT <br /> ' SC CLAYEY SANDS.SAND-CLAY — p <br /> SIEVE of FINES) JAXT = Perched water observed at time of <br /> exploration <br /> INORGANIC SWIT ROCK FLOUR. . <br /> ML �+�sLTs WITH SLIGHT W Measured free product in well or <br /> PLASTICITY <br /> SILTS / INOR4WIcCLAYS OF LOW TO — piezometer <br /> MEDIUM PLAsnCITY,GRAVELLY <br /> 11 FINE AND Sys / CL CLAYS.SANDY CLAYS.SILTY CLAYS. <br /> GRAINED CLAYS0 LIMIT / reANeura . <br /> SOILS THAN 50 <br /> OL ORGAISC aIlTB AND ORGANIC . <br /> SILTYCLAVSOFLOWPLASTCITY Stratigraphic Contact <br /> INORGANIC SILTS•MICACEOUS OR <br /> MORE THAN 50% <br /> HI MH ' DIAroMACEOJJS SILTY SOILS geologic units contactDistinct between soil strata or <br /> PASSING NO.200 1 g g <br /> SIEVE SILTS //' /� Gradual change between soil strata or <br /> LIQUID LIMIT INORGANIC CLAYS OF HIGH J g <br /> CLAYS GREATERTHAN 50 GH PLAsnan geologic units_ oaoAwcctarsANoslLrsoF —..�.., Approximate location of soil strata <br /> OH MEauMTorRGHPLAsnaTv change within a geologic soil unit <br /> DT PEAT HUMUS.SWAMP SOILS WITH . <br /> HIGHLY ORGANIC SOILS . . HIGH ORGANIC CONTENTS • <br /> I NOTE: Multiple symbols are used to indicate borderline or dual soil classifications <br /> Laboratory/Field Tests <br /> Sampler Symbol Descriptions OAF Percent fines <br /> AL Atterberg limits <br /> ■ 2.4-inch I.D.split barrel CA Chemical analysis <br /> CP Laboratory compaction test <br /> Standard Penetration Test(SPT) CS Consolidation test <br /> DS Direct shear <br /> C Shelby tube HA Hydrometer analysis <br /> MC Moisture content <br /> i . . 8 <br /> Piston MD Moisture content and dry density <br /> OC Organic content <br /> Direct-Push PM Permeability or hydraulic conductivity ij PP Pocket penetrometer <br /> 1 <br /> Bulk or grab SA Sieve analysis <br /> . E • VS Triaxial compression <br /> UC Unconfined compression <br /> VS Vane shear • <br /> Blowcount is recorded for driven samplers as the number <br /> of blows required to advance sampler 12 inches(or Sheen Classification <br /> distance noted). See exploration log for hammer weight and drop. NS No Visible Sheen <br /> SS Slight Sheen <br /> A"P"indicates sampler pushed using the weight of the MS Moderate Sheen <br /> drill rig. HS Heavy Sheen <br /> 1/ - NT Not Tested <br /> NOTE: The reader must refer to the discussion in the report text and the logs of explorations for a proper understanding of subsurface conditions. <br /> Descriptions on the logs apply only at the specific exploration locations and at the time the explorations were made;they are not warranted to be <br /> representative of subsurface conditions at other locations or times. <br /> KEY TO EXPLORATION LOGS <br /> 11 Figure A-'t <br /> GEQENGINEERS Fi 9 <br />