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COHESIONLESS SOILS COHESIVE SOILS <br />Density N (blows/ft)Approximat€ <br />Relative Density(o/o) <br />Consistency N (blows/ft) <br />Approximate <br />Undrained Shear <br />Sirenoth (osf) <br />V€ry Loose <br />L@se <br />Medium Dense <br />Dense <br />Vsry Oense <br />0to4 <br />4to10 <br />10 to 30 <br />30 to 50 <br />over 50 <br />0-15 <br />15-35 <br />35-65 <br />65-85 <br />85 - 100 <br />Very Soft <br />Sofl <br />Medium Stiff <br />stiff <br />Very Stiff <br />Hard <br />0lo2 <br />2lo4 <br />4to8 <br />8 to'15 <br />15 lo 30 <br />over 30 <br /><250 <br />2s0 - 500 <br />500 - 1000 <br />1000 - 2000 <br />2000 - 4000 <br />>4000 <br />RELATIVE DENSITY OR CONSISTENCY VERSUS SPT N-VALUE <br />USCS SOIL CLASSIFICATION SYSTEM <br />COMPONENT DEFINITIONS <br />COMPONENT SIZE RANGE <br />Boulders <br />Cobbles <br />Gravel <br />Coarse gravel <br />Fine gravel <br />Sand <br />Coaree sand <br />Medium sand <br />Fino sand <br />Silt and Clay <br />Larger lhan 12 in <br />3into12in <br />3 in to No 4 (4.5mm) <br />3 in to 3/4 in <br />3/4 in to No 4 (4.5mm) <br />No. 4 (4.5 mm) to No. 200 (0.074 mm) <br />No. 4 (4.5 mm) to No. 10 (2.0 mm) <br />No. 10 (2.0 mm) to No.40 (0-42 mm) <br />No.40 (0.42 mm) to No. 200 (0.074 mm) <br />Smaller lhan No. 200 (0.074mm) <br />NOTES: Soil classifications presentsd on exploration logs are based on visual and laboralory observation. <br />Soil descriptions are presented in the following general order: <br />Density/consistency, color, modilier (if any) GROUP NAME, addiAons to group name (if any), moisture <br />content. Propottion, gradaqon, and angularity of constituents, additional comments' <br />(GEOLOGI C I NTERP R ETATION) <br />Pleaso refer to the discussion in the report text as well as ths exploration logs for a more <br />complote description of subsurface conditions. <br />%F <br />AL <br />CBR <br />CN <br />DD <br />DS <br />GS <br />K <br />MD <br />MR <br />oc <br />pH <br />PID <br />PP <br />Res. <br />SG <br />CD <br />CU <br />UU <br />TV <br />UC <br />mI <br />Non-standa.d Penetration Tost <br />(3.0" OD Split Spoon with Brass Rings) <br />Small Bag Sample <br />Large Bag (Bulk) Sample <br />Core Run <br />3-1/4" OD Split Spoon <br />GROUNDWATER SYMBOLS <br />Groundwater Level (measured at <br />lime of drilling) <br />Groundwater Level (measured in well or <br />open hole after water level stabilized) <br />COMPONENT PROPORTIONS <br />MOISTURE CONTENT <br />DRY <br />MOIST <br />WET <br />Absence of moisture, dusty, <br />dry to the touch. <br />Oamp but no visible waler. <br />Visible {re€ water, usually <br />TEST SYMBOLS <br />Porcent Fines <br />Att€rberg Limits: PL = Plastic Limit, LL = Liquid Limit <br />California Bearing Ratio <br />Consolidation <br />Dry Density (pcf) <br />Direct Shsar <br />Grain Size Distribution <br />Permeability <br />Moisture/Density Rolationship (Proctor) <br />Resilient Modulus <br />Organic Content <br />pH of Soils <br />Photoionization Device Reading <br />Pocket Penetrometer (Approx. Comp. Strength, tsf) <br />Resistivity <br />Specific Gravity <br />Consolidated Drained Triaxial <br />Consolidated Undrained Triaxial <br />Unconsolidated Undrainod Triaxial <br />Torvano (Approx. Shsar Strength, tsO <br />Unconlined Compression <br />SAMPLE TYPE SYMBOLS <br />2.0" OD Split Spoon (SPT) <br />(140 lb. hammer with 30 in. drop) <br />Shelby Tube <br />0 <br />EI <br />n <br />g <br />t <br />MAJOR DIVISIONS GROUP DESCRIPTIONS <br />Coarse <br />Gralned <br />Soils <br />More than <br />50% Retained <br />on No. <br />200 Sieve <br />Size <br />Gravel and <br />Gravelly Soils <br />More than <br />50% of Coarse <br />Fraction R€tained <br />on No. 4 Sievs <br />Clean Gravel <br />(little or no fines) <br />)v!.]GW Well{raded GRAVEL <br />)v! <br />"o'GP Poorly{raded GRAVEL <br />Gravel wlth <br />Fin€s (appreciable <br />amounl of flnes) <br />GM Silty GRAVEL <br />GC Clayey GRAVEL <br />Sand and <br />Sandy Soils <br />5070 or More <br />of Coarse <br />Fraction Passing <br />No- 4 Sieve <br />Clean Sand <br />(little or no linss) <br />SW Woll{raded SAND <br />SP P@rly€raded SAND <br />Sand with <br />Fines (appreciable <br />amount of fines) <br />SM Silty SAND <br />SC Clayey SAND <br />Fine <br />Grained <br />Soils <br />50o/o or More <br />Passing <br />No. 200 Sieve <br />Size <br />sitt <br />and <br />Clay <br />Liquid Limit <br />Less than 50% <br />ML SILT <br />CL Lean CLAY <br />OL Organic SILT/Organic CLAY <br />silt <br />and <br />Clay <br />Liquld Limit <br />50% or More <br />MH Elastic SILT <br />CH Fat CLAY <br />OH Organic SILT/Organic CLAY <br />Highly Organic Soils <br />\r r/ <br />PT PEAT <br />t <br />PROPORTION RANGE DESCRIPTIVE TERMS <br />< 5o/o <br />5-12% <br />12 -30% <br />30 - 50% <br />Clean <br />Slightly (Clayey, Silty, Sandy) <br />Clayey, Silty, Sandy, Gravelly <br />Very (Clayey, Silty, Sandy, Gravslly) <br />Components arc arranged in order of increasing quantities. <br />!,lf\fill Kittitas countv rransrer station '-T;il3""r:1r=#t#tll UflI T,ij:ll[:'#;ff[',il:'' EXPLoMloN Locs <br />GEOSIIENEE!.NC. pRoJEcrNo: 2022-188 FGURE: A-1