ARCHIVED REPORTS XR0001803 - Laserfiche WebLink

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FIELD PROCEDURES Site Safety Plan The site safety plan describes the basic safety requirements for the drilling of soil borings and excavation of soil at the work site The safety plan is applicable to personnel of RESNA and to subcontractors of RESNA The representative from RESNA will act as the Site Safety Officer Personnel at the site will be informed of the contents of the site safety plan before work begins A copy of the plan will be kept at the work site and will be available for reference by appropriate parties during the work Drilling and Soil Sampling Before drilling, soil borings are started by hand-augering to a depth of approximately 5 feet to reduce the risk of damaging underground structures. The soil borings will be drilled using a truckmounted drill rig equipped with 8-inch- and 10-inch-diameter, continuous- flight, hollow-stem augers The drilling will be performed under the guidance of a field geologist Relatively undisturbed soil samples will be collected from each boring at 5-foot intervals or other appropriate intervals from the ground surface to the total boring depth, identified using visual and manual methods, and classified according to the Unified Soil Classification System Soil samples will be collected using a California-modified, split-spoon sampler equipped with clean brass sleeves Samples will be collected by drilling the boring to a point gust above the sampling depth and then driving the sampler into the soil through the hollow center of the auger The split-spoon sampler will be driven 1S inches with a standard 140-pound hammer dropped 30 inches The number of blows required to drive the sampler each successive 6-inch interval will be counted and recorded on the field boring log to give an indication of soil consistency Soil samples will be evaluated for relative levels of hydrocarbons using a photoionization detector (PID) Field instruments such as the PID provide a preliminary assessment of the total volatile constituents and cannot identify or distinguish between individual compounds The PID may also be affected by moisture, fluctuations in the air and/or soil temperature, and the specific soil type Subjective evidence of hydrocarbons such as soil discoloration or obvious odor will be noted Soil samples collected for possible chemical analysis will be promptly sealed with aluminum foal, plastic caps, and tape They will then be labeled and placed in iced storage for transport to the analytical laboratory. A Chain of Custody Record will be initiated by the field geologist and will accompany the samples to the laboratory lip 38048-7W I HUMAN wwwra Working To Restore Nature