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RELATIVE DENSITY 01F�68KISISTENCY VERSUS SPT N-VALUE TEST SYMBOLS COHESIONLESS SOILS COHESIVE SOILS %F Percent Fines Approximate Approximate AL Atterberg Limits: PL=Plastic Limit Density N(blows/ft) Consistency N(blows/ft) Undrained Shear LL=Liquid Limit Relative Density(%) Strength(psf) CBR California Bearing Ratio Very Loose 0 to 4 0 - 15 Very Soft 0 to 2 <250 CN Consolidation Loose 4 to 10 15 - 35 Soft 2 to 4 250 - 500 DO Dry Density(pcf) Medium Dense 10 to 30 35 - 65 Medium Stiff 4 to 8 500 - 1000 DS Direct Shear Dense 30 to 50 65 - 85 Stiff 8 to 15 1000 - 2000 GS Grain Size Distribution Very Dense over 50 85 - 100 Very Stiff 15 to 30 2000 - 4000 K Permeability Hard over 30 >4000 MD Moisture/Density Relationship(Proctor) USCS SOIL CLASSIFICATION SYSTEM MR Resilient Modulus PID Photoionization Device Reading MAJOR DIVISIONS GROUP DESCRIPTIONS PP Pocket Penetrometer Approx.Compressive Strength(tso Gravel anda,�GW Well-graded GRAVEL SG Specific Gravity Coarse Clean Gravel TC Triaxial Compression Gravelly Soils Grained (little or no fines) Soils o 3c GP Poorly graded GRAVEL TV Toryne Approx.Shear Strength(MMare than 50%of Coarse Gravel with o GM Silty GRAVEL UC Unconfined Compression Fraction Retained Fines(appreciable onNo.4Sieve amount of fines) GC Clayey GRAVEL SAMPLE TYPE SYMBOLS Sand and Clean Sand • SW Well-graded SAND ® 2.0"OD Split Spoon(SPT) Sandy Soils (little or no fines) (140 Ib.hammer with 30 in.drop) More than �.' SP Poorly-graded SAND 50%Retained Shelby Tube 50%or More on No. of Coarse Sand with SM Silty SAND 200 Sieve Fines(appreciable a 3-1/4"OD Split Spoon with Brass Rings Fraction Passing Size No.4 Sieve amount of fines) SC Clayey SAND O Small Bag Sample ML SILT Large Ba u Fine Silt g Bag Sample ( p Grained and Liquid Limit Less than 50% CL Lean CLAY Core Run Soils Clay _ OL Organic SILT/Organic CLAY Non-standard Penetration Test (3.0"OD split spoon) MH Elastic SILT 50%or More Silt Liquid Limit Passing ala 50%or More CH Fat CLAY GROUNDWATER SYMBOLS No.200 Sieve y Size OH Organic SILT/Organic CLAY Groundwater Level(measured at time of drilling) Highly Organic Soils PT PEAT Groundwater Level(measured in well or open hole after water level stabilized) COMPONENT DEFINITIONS COMPONENT PROPORTIONS COMPONENT SIZE RANGE PROPORTION RANGE DESCRIPTIVE TERMS Boulders Larger than 12 in Cobbles 3 in to 12 in <5% Clean Gravel 3 in to No 4(4.5mm) 5-12% Slightly(Clayey,Silty,Sandy) Coarse gravel 3 in to 3/4 in Fine gravel 3/4 in to No 4(4.5mm) Sand No.4(4.5 mm)to No.200(0.074 mm) 12-30% Clayey,Silty,Sandy,Gravelly Coarse sand No.4(4.5 mm)to No.10(2.0 mm) Medium sand No.10(2.0 mm)to No.40(0.42 mm) 30-50% Very(Clayey,Silty,Sandy,Gravelly) Fine sand No.40(0.42 mm)to No.200(0.074 mm) Silt and Clay Smaller than No.200(0.074mm) Components are arranged in order of increasing quantities. NOTES: Soil classifications presented on exploration logs are based on visual and laboratory observation. Soil descriptions are presented in the following general order. MOISTURE CONTENT Density/consistency,color,modifier(if any)GROUP NAME,additions to group name(if any),moisture DRY Absence of moisture,dusty, content. Proportion,gradation,and angularity of constituents,additional comments. dry to the touch. (GEOLOGIC INTERPRETATION) MOIST Damp but no visible water. Please refer to the discussion in the report text as well as the exploration logs for a more WET Visible free water,usually complete description of subsurface conditions. soil is below water table. LEGEND OF TERMS AND Lorentz Rockery Replacement SYMBOLS USED ON HmaosaENCES INC. Everett, Washington EXPLORATION LOGS PROJECT NO.: 2014-162-21 FIGURE: A-1 LEGEND 2014-162-21.GPJ 10/29/14