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0 <br /> STANDARD OPERATING PROCEDURE <br /> LOGGING METHOD <br /> Unconsolidated soil is classified and described by trained field personnel. All <br /> available information is used, including the following: soil recovered in the sampler, <br /> including the soil visible on both ends of the sample retained for possible analysis; <br /> soil cuttings generated during drilling; and the drilling contractor's observations of <br /> the drill rig's behavior. <br /> Classification and description of unconsolidated soil are accomplished using the <br /> American Society of Testing and Materials (ASTM) Methods D2487-85 (Unified Soil <br /> Classification System (USCS)) and/or D2488-69 (Description and Identification of <br /> Soils, Visual-Manual Procedure). <br /> The soil classification and description are recorded on the field log sheet by field <br /> personnel and include the following information: <br /> 1 ) Soil type; <br /> 2) Soil classification; <br /> 3) Soil color, including mottling; <br /> 4) Moisture content; <br /> 5) Plasticity and consistency or density <br /> 6) Percentages of clay, silt, sand and gravel <br /> 7) Grain size range of sands and gravels <br /> 8) Angularity and largest diameter of gravel component <br /> 9) Estimated permeability <br /> 10) Odor <br /> 1 1 ) Any other observations which would assist in the <br /> interpretation of the depositional environment and/or <br /> differentiation between the various geologic units <br /> expected to be encountered. <br /> In addition to the above, the ground water levels encountered during drilling and <br /> measured after the water stabilized is also recorded on the field log. <br /> c2Asop\1ogging.jn02 <br />