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GENERAL NOTES <br /> DRILLING &SAMPLING SYMBOLS: <br /> SL : SS with Liner <br /> SS : Sptit Spoon—1�e" I.D.,2"O.D., unless OS : Osterberg Sampler—3"Shelby Tube <br /> otherwise noted HS : Hollow Stem Auger <br /> ST : Shelby Tube—2"O.D., unless otherwise noted WS : Wash Sample <br /> PA : Power Auger FT : Fish Trail <br /> DB : Diamond Bit—NX: BX:AX RB : Rock Bit <br /> AS : Auger Sample BS : Bulk Sample <br /> JS : Jar Sample PM : Pressuremeter test—in situ <br /> VS : Vane Shear <br /> Standard"N"Penetration: Blows per foot of a 140 pound hammer falling 30 inches on a 2 inch OD split spoon, except <br /> where noted. <br /> WATER LEVEL MEASUREMENT SYMBOLS: <br /> WL : Water Level <br /> WCI : Wet Cave In <br /> DCI : Dry Cave In <br /> WS : While Sampiing <br /> WD : While Drilling <br /> BCR: Before Casing Remvoal <br /> ACR: After Casing Removai <br /> AB : After Boring <br /> Water levels indicated on the boring logs are the levels measured in the boring at the times indicated. In previous soils, the <br /> indicated elevations are considered reliable ground water levels. In impervious soils,the accurate determination of ground <br /> water elevations is not possible in even several days observation,and additional evidence of ground water elevations must be <br /> sought. <br /> GRADATION DESCRIPTION &TERMINOLOGY <br /> Coarse Grained or Granular Soils have more than 50%of their dry weight retained on a#200 sieve;they are described as: <br /> boulders,cobbles,gravel or sand.Fine Grained Soils have less than 50%of their dry weight retained on a#200 sieve;they are <br /> described as:clays or clayey silts if they are cohesive,and silts if they are non-cohesive. In addition to gradation,granular <br /> soils are defined on the basis of their relative In-place denslty and fine grained soils on the basi� of their strength or <br /> consistency,and their plasticity. <br /> MaJor Descrfptive Term(s) <br /> Component (Of Components Also Percent of <br /> Of Sample Size Range Present in Sample) Dry Welght <br /> Boulders Over 8 in. (200mm) Trace 1 —9 <br /> Cobbles 8 in.to 3 in. Little 10—19 <br /> (200mm to 75mm) <br /> Gravel 3 in.to#4 sieve Some 20—34 <br /> (75mm to 2mm) <br /> Sand #4 to#200 sieve And 38—50 <br /> (2mm to.074mm) <br /> Silt Passing#200 sieve <br /> (0.074mm to 0.005mm) <br /> Clay Smaller than 0.005mm <br /> CONSISTENCY OF COHESIVE SOILS: RELATIVE DENSITY OF GRANULAR SOILS: <br /> Unconiined <br /> Comp. <br /> Strength',Qu, <br /> tsf Consistencv N—Blows/ft. Relative Density <br /> <0.25 Very Soft 0—3 Very Loose <br /> 0.25—0.49 Soft 4—9 Loose <br /> 0.50—0.99 Medium (Firm) 10—29 Medium Dense <br /> 1.00— 1.99 Stiff 30—49 Dense <br /> 2.00—3.99 Very Stiff 50—80 Very Dense <br /> 4.00—8.00 Hard 80+ Extremely Dense <br /> >8.00 Very Hard <br /> , GME CONSULTANTB,INC. <br />