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BORING LOG NOTES <br /> The number shown on the Boring Logs refers to the approximate location of the same number indicated <br /> on the "Site Plan" as positioned in the field by measurements from property lines and/or existing <br /> features <br /> I TYPEISIZE BORING" refers to the exploratory equipment used in the boring wherein <br /> HSA = hollow-stem auger <br /> "N" in "Slows/Foot" refers to the number of blows of a 140-pound weight, dropped 30 inches, required <br /> to advance a 2 0-inch outside diameter (1 375-inch inside diameter) split-spoon sampler a distance of <br /> 1 foot, Standard Penetration Test (ASTM Standard D 1586-84) Refusal to penetration is defined as <br />' more than 100 blows per foot <br /> "R" in "Blows/Foot" refers to the number of blows of a 140-pound weight, dropped 30 inches, required <br />' to advance a 3 0-inch outside diameter (2 42-inch inside diameter) ring sampler a distance of 1 foot <br /> Refusal to penetration is considered more than 50 blows per 6 inches of advance <br />' "C" in "Blows/Foot" refers to the number of blows of a 140-pound weight, dropped 30 inches, required <br /> to advance a California Modified Split-barrel sampler a distance of 1 foot Refusal to penetration is <br /> considered more than 50 blows per 6 inches of advance <br />' "Sample Type" refers to the form of sample recovery, in which <br />' N = Split-Spoon sample R = Ring sample G = Grab Sample C = California Modified <br /> Split-Barrel sample <br />' "Dry Density, pcf" refers to the laboratory-determined dry density in pounds per cubic foot <br /> "Water Content, %" refers to the laboratory-determined moisture content in percent (ASTM Standard <br />' D 2216-90) <br /> ' <br /> Unified Sod Class" refers to the soil type as defined by the United Soil Classification System [ASTM <br /> Standard D 2488-90) The soils were classified visually in the field and, where appropriate, <br />' classifications were modified by visual examination of samples in the laboratory and/or by appropriate <br /> tests <br /> "OVM " or "PID " refers to organic vapor meter (typically flame ionization detector) readings or <br /> photoionization detector readings, respectively, both in parts per million by volume (ppmV) <br /> These notes and boring logs are intended for use in conjunction with the purposes of our services <br /> defined in the text Boring log data should not be construed as part of the construction plans nor as <br /> defining construction conditions <br />' Boring logs depict our interpretations of subsurface conditions at the specific locations and on the <br /> date(s) noted Variations in subsurface conditions and soil characteristics may occur between borings <br /> Groundwater levels may fluctuate due to seasonal variations and other factors <br /> In general, terms and symbols on the boring logs conform with "Standard Terminology Relating to Soil, <br /> Rock, and Contained Fluids" {ASTM Standard D 653-90) <br /> Z Groundwater first encountered at depth indicated Boring Log Notes Plate. C-1 <br />' V 3-15-96 Static groundwater level and date measured ATC Associates Inc <br />