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engineering term used to describe how close in size the grains in a sample are to each other. For example, a poorly graded sample contains grains of similar size and a well graded sample contains grains of many sizes. The geologic term for poorly graded is well sorted and well graded is poorly sorted. The M and C indicators in the second symbol specify that more than 12% of fines are present in a coarse grained material. For fine- grained materials, the second symbol L stands for lean or low plasticity fines, and H stands for fat or high plasticity fines. Dual symbols are used in two cases. A dash is used to separate symbols when soils are between 5%and 12%fines(for example, SP-SM is slightly silty,fine SAND). A forward slash is used to separate symbols when the soil may fall into one of two possible basic groups (for example, CL/ML is silty CLAY/clayey SILT). 3.4.2 Color The main color value should be looked up on a Munsell color chart and stated,along with an appropriate modifier. Examples include: light brown, dark brown, reddish brown, gray, etc. The presence of mottling should be included in the description,where present. 3.4.3 Moisture Content Moisture content should be described using the following modifiers: • dry -no moisture; • moist—damp but no visible water • wet—visible free water, saturated 3.4.4 Major/Minor Constituents Grain size classification will be based on the USCS classification system. Percentages of each constituent will be listed on the soil boring log. The major soil sample constituent is always capitalized and listed first, minor constituents are listed next, followed by ancillary materials, such as mica flakes, dark minerals, or naturally occurring organic matter, such as humus, peat, or other vegetative material. Grain sizes can be determined by site, feel, and for fine materials through field tests outlined in Section 4.4.5 below. Grain sizes are defined as the following: • boulder: 300 millimeters (mm); • cobble: 75 - 300 mm; 8