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L <br />GENERAL NOTES <br />, <br />DRILLING & SAMPLING SYMBOLS <br />LABORATORY TEST SYMBOLS <br />SYM130L <br />DEFINITION <br />SYMBOL DEFINITION <br />C.S. <br />Continuous Sampling <br />W Moisture content - percent of dry weight <br />P.D. <br />2-3/8" Pipe Drill <br />D Dry density -pounds per cubic foot <br />C.O. <br />Cleanout Tube <br />LL, PL Liquid and plastic limits determined in <br />31/: HSA <br />314" I.D. Hollow Stem Auger <br />accordance with ASTM D 423 and D 424 <br />4 FA <br />4" Diameter Flight Auger <br />Ou Unconfined compressive strength -pounds per <br />6 FA <br />6" Diameter Flight Auger <br />square foot in accordance with ASTM D2166-66 <br />2'h C <br />217' Casing <br />4C <br />4" Casing <br />Additional insertions in Qu column <br />D.M. <br />Drilling Mud <br />Pq Penetrometer reading-tons/square foot <br />J. W. <br />Jet Water <br />Ts Torvane reading-tons/square foot <br />H. A. <br />Hand Auger <br />G Specific gravity - ASTM D 854-58 <br />NXC <br />Size NX Casing <br />SL Shrinkage limit - ASTM D 427-61 <br />BXC <br />Size BX Casing <br />pH Hydrogen ion content -meter method <br />AXC <br />Size AX Casing <br />0 Organic content -combustion method <br />SS. <br />2" O.D. Split Spoon Sample <br />M.A.* Grain size analysis <br />2T <br />2" Thin Wall Tube Sample <br />C. One dimensional consolidation <br />3T <br />3" Thin Wall Tube Sample <br />Qc• Triaxial compression <br />'See attached data sheet and/or graph , <br />WATER LEVEL <br />SYMBOL —'W <br />Water levels shown on the boring logs are the levels measured in the borings at the time <br />and under the conditions indicated. <br />In sand, the indicated levels can be considered <br />reliable ground water levels. In clay soil, it is not possible to determine the ground <br />water level within the normal scope of a test boring investigation, except where lenses <br />or layers of more pervious waterbearing <br />soil are present and then a long period of time <br />may be necessary to reach equilibrium. <br />Therefore, the position of the water level svmbol <br />for cohesive or mixed texture soils <br />may not indicate the true level of the ground water L <br />table. The available water level <br />information is given at the bottom of the log sheet. <br />DESCRIPTIVE TERMINOLOGY <br />DENSITY <br />TERM <br />"N" VALUE <br />Very loose <br />0-4 <br />Loose <br />5-8 <br />Medium Dense <br />9-15 <br />Dense <br />16-30 <br />Very Dense <br />Over 30 <br />CONSISTENCY <br />TERM "N" VALUE <br />Soft <br />0-4 <br />Medium <br />5-8 <br />Rather Stiff <br />9-15 <br />Stiff <br />16-30 <br />Very Stiff <br />Over 30 <br />Standard "N" Penetration: Blows per foot of a 140 pound hammer falling 30 inches on a 2 inch OD split spoon. <br />RELATIVE PROPORTIONS <br />TERM <br />RANGE <br />Trace <br />0-51; <br />A Little <br />5-15% <br />Some <br />15-30% <br />With <br />30 50'0 <br />PARTICLE SIZES <br />Boulders <br />Over 3" <br />Gravel <br />Coarse <br />Fine <br />::4 ,�.. <br />Sand <br />Coarse <br />=4-x10 <br />Medium <br />=10-"40 <br />F!ne <br />=40-:200 <br />t and Clay <br />Determined by :'3511c1ty <br />Chafac:er-stics <br />S'- _ _ 3'1i .%- are .t3-)dard <br />