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Key to Exploration Logs <br /> Sample Description <br /> Classification of soils in this report is based on visual field and laboratory Moisture <br /> observations which include density/consistency,moisture condition,grain size,and <br /> plasticity estimates and should not be construed to imply field nor laboratory testing Dry Little perceptible moisture <br /> unless presented herein.Visual-manual classification methods of ASTM D 2488 Damp Some perceptible moisture,likely below optimun, <br /> were used as an identification guide. Moist Likely near optimum moisture content <br /> Soil descriptions consist of the following: Wet Much perceptible moisture, likely above optimum <br /> Density/consistency, moisture,color, minor constituents,MAJOR CONSTITUENT, <br /> additional remarks. <br /> Minor Constituents Estimated Percentage <br /> Density/ <br /> Consistency Trace <5 <br /> oil <br /> Sdensity/consistency in borings is related primarily to the Standard Slightly(clayey,silty,etc.) 5 - 12 <br /> Penetration Resistance.Soil density/consistency in test pits and probes is Clayey,silty,sandy,gravelly 12 30 <br /> estimated based on visual observation and is presented parenthetically on the <br /> to s. Standard Standard Approximate Very(Clayey,silty,etc.) 30 50 <br /> SAND or GRAVEL Penetration SILT Or CLAY Penetration Shear Strength <br /> Density Resistance(N) Consistency Resistance(N) in TSF <br /> in Blows/Foot in Blows/Foot Laboratory Test Symbols <br /> Very loose 0 to 4 Very soft 0 to 2 <0.125 <br /> Loose 4 to 10 Soft 2 to 4 0.125 to 0.25 GS Grain Size Classification <br /> Medium dense 10 1o30 Medium stiff 4 to 8 0.25 to 0.5 CN Consolidation <br /> Dense 30 to 50 Stiff 8 to 15 0.5 to 1.0 UU Unconsolidated Undrained Triaxial <br /> Very dense >50 Very stiff 15 to 30 1.0 to 2.0 CU Consolidated Undrained Triaxial <br /> Hard >30 >2.0 CD Consolidated Drained Triaxial <br /> QU Unconfined Compression <br /> Sampling Test Symbols DS Direct Shear <br /> K Permeability <br /> F[j] <br /> 1.5"I.D.Split Spoon ® Grab(Jar) Q 3.0" I.D.Split Spoon pp Pocket Penetrometer <br /> Shelby Tube(Pushed) Bag Approximate Compressive Strength in TSFTV Torvane <br /> Cuttings 0 Core Run Approximate Shear Strength in TSF <br /> CBR California Bearing Ratio <br /> SOIL CLASSIFICATION CHART MD Moisture Density Relationship <br /> SYMBOLS TYPICAL AL Atterberg Limits <br /> MAJOR DIVISIONS GRAPH LETTER DESCRIPTIONS ♦ I Water Content in Percent <br /> 1W W WELL GRADED GRAVELS,GRAVEL I� Liquid Limit <br /> CLEAN t <br /> SAND MIXTURES,LITTLE OR NO Natural <br /> GRAVEL GRAVELSFINES <br /> AND Plastic Limit <br /> GRAVELLY POORLY-GRADED GRAVELS, <br /> SOILS (LITTLE ORNOFINES) GRAVEL-SAND MtXTURES,LITTLE PID Photoionization Detector Reading <br /> OR NOFINES <br /> COARSE CA Chemical Analysis <br /> GRAINED MORE THAN 50°/, GRAVELSWITH SILTVGRAVELS,GRAVEL-SAND- DT In Situ Densit in PCFSOILS FINESSILT MIXTURESyOFRACCTIION OT Tests by Others <br /> RETAINED ON NO4 SIEVE (APPRECIABLECLAYEY GRAVELS,GRAVEL-SANDAMOUNT OF FINES) CLAY MD(TURES <br /> .:.. Groundwater Indicators <br /> MORCLEAN SANDS .. Ilk. SANDS,RArLEORNO FINES ELLV <br /> OFTHAN 50% SAND ,•..•,;:. SW SANDS,LITTLE OR NO FINES V Groundwater Level on Date <br /> OF MATERIAL IS AND <br /> LARGERTNAN SANDY or(ATD)At Time of Drilling <br /> N0.200 SIEVE SOILS POORLY-GRADED SANDS, <br /> SIZE (LITTLE OR NO FINES) ,SP GRAVELLY SAND,LITTLE OR NO <br /> FINES Groundwater Seepage <br /> SANDS WITH SILTY SANDS,SANO-SILT (Test Pits) <br /> MORE THAN 50% FINES SM MD(TURES <br /> OF COARSE <br /> FRACTION <br /> PASSING ON NO <br /> 4 SIEVE AMOUNT OF FINES _) SC MIXTURES .S,SAND-CLAY Sample Key <br /> INORGANIC SILTS AND VERY FINE <br /> ML SANDS,ROCK FLOUR,SILTY OR Sample Recovery <br /> CLAYEY FINE SANDS OR CLAYEY Sample Type P <br /> SILTS WITH SLIGHT PLASTICITY <br /> SILTS INORGANIC CLAYS OF LOW TO <br /> FINELIQUID LIMB MEDIUM PLASTICITY,GRAVELLY 12 <br /> GRAINED AND LESS THAN 50 CL CLAYS,SANDY CLAYS,SILTY CLAYS, $-1 23 <br /> CLAYS LEAN CLAYS <br /> solLs _ _ 5 / <br /> a ORGANICSILTSAND ORGANIC SILTY Sample <br /> oOL CLAYS OF LOW PLASTICITY Number Blows per <br /> U — 6 inches <br /> U MORE THAN 50% INORGANIC SILTS,MICACEOUS OR <br /> S OF MATERIAL IS MH DIATOMACEOUS FINE SAN.OR <br /> I SMALLERTHAN SILTYSOILS <br /> IL NO.200 SIEVE <br /> Lg SIZE SILTS !• <br /> LIQUID LIMIT INORGANIC CLAYS OF HIGH <br /> m CLAYS GREATER THAN 50 CH PLASTICITY <br /> 0 w <br /> — — OH HIGH PLAST CRY,ORGANIC TO <br /> ��0MER <br /> LU 19106-01 5115 <br /> LU PEAT,HUMUS,SWAMP SOILS W RH <br /> HIGHLY ORGANIC SOILS ,I, PT HK;H GRGANIC CONTENTS <br /> Y Figure A-1 <br /> w <br /> Y NOTEQUAL SYMBOLS ARE USED TO INDICATE BORDERLINE SOIL CLASSIFICATIONS <br />