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General Notes <br /> DRILUNO&SAMPLING SYMBOLS LABORATORY TEST SYMBOLS <br /> SYMBOL DEFINITION SYMBOL DEFINITION <br /> C.S. Continuous Sampling W Moisture contest-percent of dry weight <br /> P.D. 2-3/8"Pipe Drill D Dry Density-pounds per cubic foot <br /> C.O. Cleanout Tube LL,PL Liquid and plastic limits determined in <br /> accordance with ASTM D 423 and D 424 <br /> 3 SSA 3 ler I.D.Hollow Stem Auger Qti Unconfined compressive strength-pounds per <br /> square foot is accordance with ASTM D <br /> 2166-66 <br /> 4 FA 4"Diameter Flight Auger _ <br /> 6 FA 6"Diameter Flight Anger <br /> 2'A C 2''A"Casing <br /> 4 C 4"Casing - Additional Insertions in Qn Column <br /> D.M. Drilling Mud Pq Penetrometer reading-tans/square foot <br /> J.W. Iet Water S Torvane reading-tons/square foot <br /> H.A. Hand Auger 0 Specific Gravity--'ASTM D 854-58 <br /> NXC Size NX Casing SL Shrinkage limit—ASTM 427-61 <br /> BXC Size BX C n._ .H H e t: n ion content meter method <br /> AXC Size AX casing. 0 Organic content-combustion method <br /> SS 2"O.D.Split Spoon Sample M.A.' Grain size analysis <br /> 2T 2"Thin Wall Tube Sample C' One dimensional consolidation <br /> 3T 3"Thin Wall Tube Sample Q: Trlaxlal Compression <br /> *See attached data Sheet and/or graph <br /> Water Level Symbol <br /> Water levels shown on the boring logs are the levels measured in the borings at the time and under the conditions indicated. In sand, <br /> the Indicated levels can be considered reliable ground water levels. In clay soils,it is not possible to determine the ground water <br /> level within the normal scope of a test boring investigation,except where looses or layers of more pervious water bearing soil is <br /> present and then a long period of'time may be necessary to reach equilibrium. Therefore,the position of the water level symbol for <br /> cohesive or mixed soils may not indicate the true level of the ground water table. The available water level information is given at <br /> the bottom of the log sheet <br /> Descriptive Terminology <br /> DENSITY CONSISTENCY <br /> TERM "N"VALUE TERM "N"VALUE <br /> Very Loose 0-4 Soft 0-4 <br /> Loose 5-8 Medium 5-8 <br /> Medium Dense 9—15 Rather Stiff 9—15 <br /> Dense 16—30 Stiff 16--30 <br /> Very Dense Over 30 Very Stiff Over 30 <br /> Standard"N".Penetra1oon:Blovus per fbot of a 140 pound hammer falling 30 inches on a 2 inch OD split spoon. <br /> Relative Proportions Particle Sizes <br /> TERMS RANGE Boulders Over 3" <br /> Trace 0-5% Gravel- Coarse %"_3" <br /> A little 5-15% Medium #4—V," <br /> Some 15-30% Sand- Coarse 114 -4110 <br /> With 30-50% Medium #10-#40 <br /> Fine #40-#200 <br /> Silt and Clay Determined by plastici€ycharacteristics. <br /> Norm Sieve sizes are U.S.Standard. <br />