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The number shown in "BORING NO." or "TEST PIT NO." refers to the approximate location of the same number <br /> indicated on the "Boring and Test Pit Location Diagram" as positioned in the field by pacing or measurement from <br /> property lines and/or existing features. <br /> "DRILLING TYPE" refers to the exploratory equipment used in the boring wherein HSA = hollow stem auger, and the <br /> dimension presented is the outside diameter of the HSA used. <br /> "EXCAVATION TYPE" refers to the equipment type used in the excavation of the test pit, and may include the width <br /> of the bucket on the excavator. <br /> "N" in "BLOW COUNTS" refers to a 2-in. outside diameter split-barrel sampler driven into the ground with a 140 lb. <br /> drop-hammer dropped 30 in. repeatedly until a penetration of 18 in. is achieved or until refusal. The number of blows, <br /> or "blow count", of the hammer is recorded for each of three 6-in. increments totaling 18 in. The number of blows <br /> required for advancing the sampler for the last 12 in. (2"d and 3rd increments) is defined as the Standard Penetration <br /> Test (SPT) "N"-Value. Refusal to penetration is considered more than 50 blows per 6 inches. (Ref. ASTM D 1586). <br /> "R" in "BLOW COUNTS" refers to a 3-in. outside diameter ring-lined split spoon sampler driven into the ground with a <br /> 140 lb. drop-hammer dropped 30 in. repeatedly until a penetration of 12 in. is achieved or until refusal. The number <br /> of blows required to advance the sampler 12 in. is defined as the "R" blow count. The "R" blow count requires an <br /> engineered conversion to an equivalent SPT N-Value. Refusal to penetration is considered more than 50 blows per <br /> foot. (Ref. ASTM D 3550). <br /> "SAMPLE TYPE" refers to the form of sample recovery, in which N = Split-barrel sample, R = Ring-lined sample, <br /> G = Grab sample, B = Bucket sample, C = Core sample (ex. diamond bit rock coring). <br /> "DRY DENSITY (LBS/CU FT)" refers to the laboratory-determined dry density in pounds per cubic foot. The symbol <br /> "NR" indicates that no sample was recovered. The symbol "DU" indicates that determination of dry density was not <br /> possible. <br /> "MOISTURE CONTENT (% OF DRY WT.)" refers to the laboratory-determined water content in percent (Ref. ASTM <br /> D2216). <br /> "USCS" refers to the "Unified Soil Classification System" Group Symbol for the soil type as defined by ASTM D <br /> 2487 and D 2488. The soils were classified visually in the field, and where appropriate, classifications were modified <br /> by visual examination of samples in the laboratory and/or by appropriate tests. <br /> These notes and boring logs are intended for use in conjunction with the purposes of our services defined in the text. <br /> Boring log data should not be construed as part of the construction plans nor as defining construction conditions. <br /> Boring logs depict our interpretations of subsurface conditions at the locations and on the date(s) noted. Variations in <br /> subsurface conditions and characteristics may occur between borings. Groundwater levels may fluctuate due to <br /> seasonal variations and other factors. <br /> The stratification lines shown on the boring logs represent our interpretation of the approximate boundary between <br /> soil or rock types based upon visual field classification at the boring location. The transition between materials is <br /> approximate and may be more or less gradual than indicated. <br /> Geotechnicul Western PLATE <br /> Environmental Technologies Inc. <br /> Inspections The Quality People BORING LOG NOTES A-3 <br /> Materials Since 1955 <br />