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KEY TO SYMBOLS <br /> Symbol Description <br /> Strata symbols <br /> Paving <br /> Silty sand <br /> Notes: <br /> 1. These logs are subject to the limitations, conclusions, and <br /> recommendations in this report. <br /> 2 . Results of field test conducted on samples recovered are reported on <br /> the logs. <br /> 3 . Descriptions of material encountered during drilling are based on <br /> Unified Soil Classification System. Soils are classified based on the <br /> following characteristics: <br /> color (in comparison with Munsell Soil Color Charts) , percent of <br /> fines vs percent of sand, grain size, mineralogy, grading, grain <br /> shape, bedding, fractures, cementing, fossils, hardness, moisture, <br /> and structure. When no observation was possible due to sampling <br /> method or condition of the sample, data was not recorded concerning <br /> that specific characteristic. <br /> 4. Abbreviations used in the descriptions and remarks of these logs are <br /> as follows: <br /> CME = Central Mine Equipment <br /> ft = foot <br /> PID = photoionization detector <br /> ppm = parts per million <br /> USCS = Unified Soil Classification System <br /> BSG = approximate depth in feet below site grade <br /> * Approximate elevation in feet above mean sea level. <br />