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Andrie Street Improvements <br />Ramsey, Minnesota <br />NTI Project No. 15.61197.100 <br />SYMBOL <br />General Notes <br />DRILLING & SAMPLING SYMBOLS <br />DEFINITION SYMBOL <br />LABORATORY TEST SYMBOLS <br />DEFINITION <br />C.S. <br />P.D. <br />C.O. <br />3 HSA <br />4 FA <br />6 FA <br />2'AC <br />4C <br />D.M. <br />J.W. <br />H.A. <br />NXC <br />BXC <br />AXC <br />SS <br />2T <br />3T <br />Continuous Sampling <br />2-3/8" Pipe Drill <br />Cleanout Tube <br />3 %" I.D. Hollow Stem Auger <br />4" Diameter Flight Auger <br />6" Diameter Flight Auger <br />2 %" Casing <br />4" Casing <br />Drilling Mud <br />Jet Water <br />Hand Auger <br />Size NX Casing <br />Size BX Casing <br />Size AX casing <br />2" O.D. Split Spoon Sample <br />2" Thin Wall Tube Sample <br />3" Thin Wall Tube Sample <br />W <br />D <br />LL, PL <br />Qu <br />Qp <br />S <br />G <br />SL <br />pH <br />0 <br />M.A.' <br />C* <br />Qc' <br />Moisture content -percent of dry weight <br />Dry Density -pounds per cubic foot <br />Liquid and plastic limits determined in <br />accordance with ASTM D 423 and D 424 <br />Unconfined compressive strength -pounds per <br />square foot in accordance with ASTM D 2166- <br />66 <br />Additional insertions in Qu Column <br />Penetrometer reading-tons/square foot <br />Torvane reading-tons/square foot <br />Specific Gravity — ASTM D 854-58 <br />Shrinkage limit — ASTM 427-61 <br />Hydrogen ion content -meter method <br />Organic content -combustion method <br />Grain size analysis <br />One dimensional consolidation <br />Triaxial 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 <br />sand, the indicated levels can be considered reliable ground water levels. In clay soils, it is not possible to determine the ground <br />water level within the normal scope of a test boring investigation, except where lenses or layers of more pervious water bearing <br />soil is present and then a long period of time may be necessary to reach equilibrium. Therefore, the position of the water level <br />symbol for cohesive or mixed soils may not indicate the true level of the ground water table. The available water level information <br />is given at the bottom of the log sheet. <br />TERM <br />Very Loose <br />Loose <br />Medium Dense <br />Dense <br />Very Dense <br />Descriptive Terminology <br />DENSITY CONSISTENCY <br />"N" VALUE <br />0-4 <br />5-8 <br />9-15 <br />16-30 <br />Over 30 <br />TERM <br />Soft <br />Medium <br />Rather Stiff <br />Stiff <br />Very Stiff <br />"N" VALUE <br />0-4 <br />5-8 <br />9-15 <br />16-30 <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 />TERMS <br />Trace <br />A little <br />Some <br />With <br />RANGE <br />0-5% <br />5-15% <br />15-30% <br />30-50% <br />Particle Sizes <br />Boulders Over 3" <br />Gravel - Coarse <br />Medium <br />Sand - Coarse <br />Medium <br />Fine <br />Silt and Clay <br />3,„ — 3„ <br />#4—%„ <br />#4 - #10 <br />#10 - #40 <br />#40 - #200 <br />Determined by plasticity characteristics. <br />Note: Sieve sizes are U.S. Standard. <br />Page 10 of 15 <br />