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Lake Front <br />Ramsey, Minnesota <br />NTI Project No. 18.MSP05470.000 <br />GENERAL NOTES <br />DRILLING and SAMPLING SYMBOLS <br />LABORATORY TEST SYMBOLS <br />SYMBOL <br />DEFINITION <br />SYMBOL <br />DEFINITION <br />C.S. <br />Continuous Sampling <br />W <br />Moisture content -percent of dry weight <br />P.D. <br />2-3/8" Pipe Drill <br />D <br />Dry Density -pounds per cubic foot <br />C.O. <br />Cleanout Tube <br />LL, PL <br />Liquid and plastic limits determined in accordance <br />with ASTM D 423 and D 424 <br />3 HSA <br />3 %" I.D. Hollow Stem Auger <br />QU <br />Unconfined compressive strength -pounds per <br />square foot in accordance with ASTM D 2166-66 <br />4 FA <br />4" Diameter Flight Auger <br />6 FA <br />6" Diameter Flight Auger <br />2 % C <br />2 Y" Casing <br />4 C <br />4" Casing <br />D.M. <br />Drilling Mud <br />Pq <br />Penetrometer reading-tons/square foot <br />J.W. <br />Jet Water <br />S <br />Torvane reading-tons/square foot <br />H.A. <br />Hand Auger <br />G <br />Specific Gravity — ASTM D 854-58 <br />NXC <br />Size NX Casing <br />SL <br />Shrinkage limit — ASTM 427-61 <br />BXC <br />Size BX Casing <br />Ph <br />Hydrogen ion content -meter method <br />AXC <br />Size AX casing <br />O <br />Organic content -combustion method <br />SS <br />2" O.D. Split Spoon Sample <br />M.A. <br />Grain size analysis <br />2T <br />2" Thin Wall Tube Sample <br />C* <br />One dimensional consolidation <br />3T <br />3" Thin Wall Tube Sample <br />QC <br />Triaxial Compression <br />* See attached data Sheet and/or graph <br />WATER LEVEL SYMBOL <br />Water levels shown on the boring logs were determined at the time and under the conditions indicated. In <br />sand, the indicated levels can be considered relatively reliable for most site conditions. In clay soils, it is not <br />possible to determine the ground water level within the normal scope of a test boring investigation, except <br />where lenses or layers of more pervious water bearing soil are present; and then a long period of time may be <br />necessary to reach equilibrium. Therefore, the position of the water level symbol for cohesive or mixed soils <br />may not indicate the true level of the ground water table. The available water level information is given at the <br />bottom of the log sheet. <br />DESCRIPTIVE TERMINOLOGY <br />RELATIVE DENSITY <br />TERM N60 Value (corrected) <br />Very Loose <br />Loose <br />Medium Dense <br />Dense <br />Very Dense <br />RELATIVE PROPORTIONS <br />TERMS <br />RANGE <br />Trace <br />0 — 5% <br />A little <br />5 —15% <br />Some <br />15-30% <br />CONSISTENCY <br />TERM N60 Value (corrected) <br />0-4 <br />Soft <br />0-4 <br />5-8 <br />Medium <br />5-8 <br />9 —16 <br />Rather Stiff <br />9 —15 <br />16 — 30 <br />Stiff <br />16 — 30 <br />Over 30 <br />Very Stiff <br />Over 30 <br />PARTICLE SIZES <br />MATERIAL <br />DESCRIPTION <br />U.S. SIEVE SIZE <br />Boulders <br />Over 3" <br />Gravel <br />Coarse <br />3" to %" <br />Medium <br />%"to#4 <br />Sand <br />Coarse <br />#4 to #10 <br />Medium <br />#10to#40 <br />Fine <br />#40 to #200 <br />Silt and Clay <br />Determined by Hydrometer <br />Test <br />