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GENERAL NOTES <br />dkILLING & SAMPLING SYMBOLS LABORATORY TEST SYMBOLS <br />SYMBOL <br />DEFINITION SYMBOL DEFINITION <br />C.S. <br />Continuous Sampling W Moisture content - percent of dry weight <br />P.D. <br />2-3/8" Pipe Drill D Dry density -pounds per cubic toot <br />C.O. <br />Cleanout Tube LL, PL Liquid and plastic limits determined in <br />3% HSA 3%i I.D. Hollow Stem Auger accordance witn ASTM D 423 and D 424 <br />4 FA <br />4" Diametg EliatmAug$_ Ou Unconfined compressive strength -pounds per <br />5 FA <br />_ <br />�ameter Flight AuVer square foot in accordance with ASTMD2166-68 <br />2% C <br />% <br />4C <br />4" Casing Additional insertions In Ou column <br />D.M. <br />J. W. <br />Drilling Mud <br />Jet Water Pq Penetrometer reeding tons/sgwre foot <br />H. A. <br />Hand Auger To Torvene reading-tons/square foot <br />NXC <br />Size NX Casing G Specific gravity - ASTM 0 854.58 <br />BXC <br />Size BX Casing SL Shrinksgs limit - ASTM D 427.61 <br />AXC <br />Size AX Casing pH Hydrogen ion content -meter msthod <br />66 <br />2" O.D. Split Spoon Sample 0 Organic content-combwo_n method <br />2T <br />2" Thin �:sll Tube Sample M.A.' Grain size analysis <br />9T <br />2" Thin Wall Tube Sample C. Ons dimensional consoJdation <br />Oc' Triaxial compression <br />'See attached data sheet and/or graph <br />WATER LEVEL <br />SYMBOL —_ <br />Water levels shown on the baring logs are the levels measured in the borings at the time <br />and under the conditions indicated. 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 Isrses <br />or layers of more pervious waterbearing soil are present and than a long period of time <br />may be necessary to reach equilibrium. Therefore, the position of the water level symbol <br />for cohesive or mixed texture soils may nox indicate the true level of the ground water <br />table. The available water level Information is given at the bottom of the log sheet. <br />DESCRIPTIVE TERMINOLOGY <br />DENSITY <br />CONSISTENCY <br />TERM "N" VALUE <br />TEW "N" VALUE <br />Very loose 0-4 <br />Soh 0-4 <br />Lowe 5-8 <br />Medium 5-8 <br />Medium Dense 9-15 <br />Ratter Stiff 9-15 <br />Dense 16.30 <br />Stiff 16-30 <br />Very Dense Over 30 <br />Very Stiff Over 30 <br />Standard "N" Penetration: Blows per foot of n 140 pound hammer falling 30 inches on s 2 Inch OD split spoon. <br />RELATIVE PROPORTIONS <br />TERM RANGE <br />Trace 0-5% <br />A Little 5-15% <br />Some 15-30% <br />With 30-50% <br />PARTICLE SIZES <br />Boulders Over 3" <br />Gravel <br />Coarse 'A •-3 <br />Fine N4-%" <br />Sand <br />Coarse N4410 <br />Medium N10-N40 <br />Fine N40-N200 <br />Silt and Clay Determined by plasticity <br />Characteristics <br />Note: Sieve sizes shown are U.S. Standard <br />SE-41)0A1 <br />