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' • Soil designated CH has high plasticity and is recognizable by its high dry strength, no <br /> dilatency, and high toughness. <br /> ' • OH soil is less plastic than CH soil and can be recognized by medium to high dry strength, <br /> slow dilatency, and slight to medium toughness. <br /> • Other descriptive information includes: <br /> Color <br /> Moisture <br /> ' Consistency (very soft, soft, firm, hard, very hard) <br /> Structure <br /> Compactness (loose, dense) for silts <br /> ' Cementation (uses hydrogen chloride) <br /> Odor <br /> B.4.4 Logging Refuse <br /> ' This procedure applies to the logging of subsurface samples collected from a landfill or other waste <br /> disposal site: <br /> 1. Observe refuse as it is brought up by the hollow stem auger or bucket auger. <br /> 1 2. If necessary, place the refuse in a plastic bag to examine the sample. <br /> 3. Record observations according to the following: <br /> a. Composition (by relative volume), e.g., paper, wood, plastic, cloth, cement, construction <br /> ' debris. Use such terms as "mostly" or"at least half." Do not use percentages. <br /> b. Moisture content: dry, damp, moist, wet. <br /> c. State of decomposition: highly decomposed, moderately decomposed, slightly <br /> decomposed, etc. <br /> ' d. Color: obvious mottling included. <br /> e. Texture: spongy, plastic (cohesive), friable. <br /> ' f. Odor. <br /> ' g. Combustible gas indicator readings (measure downhole). <br /> h. Miscellaneous: dates of periodicals and newspapers, degree of drilling effort (easy, <br /> difficult, very difficult). , <br /> ' Soil Investigation Work Plan, Stockton Railyard 5 <br /> g.ladminassryobs120031032777.16_union pacific-stockton yartA09aepods19.09_Mports1work <br /> plan_soilboringlappendiceslapp_b_boreholelogging.doc <br />