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PMYO l <br /> Table I —Soil Devices,Advantages and Disadvantages <br /> Equipment Sampling Profile Advantages and Disadvantages <br /> Trier Soft surface soils Inexpensive; easy to use and decontaminate; difficult to use in stony, dry, or <br /> sandy soil. <br /> Scoop,trowel, spoon, Soft surface soils Inexpensive; easy to use and decontaminate; trowels with painted surfaced <br /> or spatula should be avoided. <br /> Easy to use and decontaminate; uniform diameter and sample volume; <br /> Spade or shovel Soft soil, 0 to 6-inches preserves soil core (suitable for volatile organics and undisturbed sample <br /> collection); limited depth capability; not useful for hard soils. <br /> Soil coring devices and Soft soil, 0 to 25- <br /> Relatively easy to use; preserves soil core (suitable for volatile organics and <br /> hand auger inches <br /> undisturbed sample collection); limited depth capability; can be difficult to <br /> decontaminate. <br /> Thin-walled tube and Easy to use; preserves soil core; may be used to help maintain integrity of <br /> auger Soft soil, 0-24-inches volatile organics samples; easy to decontaminate; can be difficult to remove <br /> cores from sampler. <br /> Excellent depth range; preserves soil core (suitable for volatile organics and <br /> Split-spoon sampler Soil, 0-inches to undisturbed sample collection); acetate sleeve may be used to help maintain <br /> bedrock integrity of volatile organics samples; useful for hard soils; often used in <br /> conjunction with drill rig for obtaining deep cores. <br /> Excellent depth range; preserves soil core (suitable for volatile organics and <br /> Shelby tube sampler Soft soil, 0-inches to undisturbed sample collection); tube may be used to ship sample to lab <br /> bedrock undisturbed; may be used in conjunction with drill rig for obtaining deep <br /> cores and for permeability testing; not durable in rocky soils. <br /> Laskey Sampler Soil, 0-inches to Excellent depth range; preserves soil cores; used in conjunction with drill rig <br /> bedrock for obtaining deep core; can be difficult to decontaminate. <br /> Soil, 3-inches to 10- <br /> Easy to use; good depth range; uniform diameter and sample volume; acetate <br /> Bucket auger feet sleeve may be used to help maintain integrity of volatile organics samples; may <br /> disrupt and mix soil horizons greater than 6 inches in thickness. <br /> Good depth range;generally used in conjunction with bucket auger for <br /> Hand-operated power Soil, 6-inches to 15- <br /> sample collection; destroys soil core (unsuitable for VOA and undisturbed <br /> auger feet <br /> sample collection); requires two or more equipment operators; can be <br /> difficult to decontaminate; requires gasoline-powered engine (potential for <br /> cross-contamination). <br /> Continuous-flight auger Soil 0-inches to Excellent depth range; easy to decontaminate; can be used on all soil samples; <br /> bedrock results in soil mixing and loss of volatiles. <br /> Soil, 0-inches to 10- <br /> Good depth range; provides visual indications as to depth of contaminants; <br /> Backhoe feet allows for recovery of samples at specific depths; can result in loss of volatiles <br /> and soil mixing; shoring required at depth. <br /> Soil Sample Collection <br /> December 22, 2022 <br /> Page 4 of 6 <br />