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M AMA FIELD METHODS Working To Restore Nature Site Safety Plan The site safety plan describes the basic safety requirements for field work at the site and includes propane for the vapor-extraction test The safety plan is applicable to personnel and subcontractors of RESNA The representative of 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. Plate 1S, which shows the route to the nearest hospital, is included in the plan Soil Sampling in Borings Soil samples for analysis and identification will be collected at approximately 5-foot intervals from the borings during drilling Soil samples are collected by advancing the boring to a point ,lust above the sampling depth, and then driving a California-modified, split-spoon sampler containing clean brass sleeves through the hollow center of the auger into the soil The sampler is driven 18 inches with a standard 140-pound hammer repeatedly dropped 30 inches The number of blows needed to drive the sampler each successive 6 inches was counted and recorded to evaluate the relative consistency of the soil Sampling equipment is cleaned between each use with an industrial soap and clean tap water The samples selected for laboratory analysis are removed from the sampler and promptly sealed in their brass sleeves with aluminum foil, plastic caps, and duct tape The samples are labeled and promptly placed in iced storage for delivery to the laboratory Logaing of Boring Soil cuttings and samples are logged using the Unified Soil Classification System Samples not selected for chemical analysis and the soil sampler shoe are extruded in the field for examination The texture, color, moisture, plasticity, and consistency of soil, the blow counts, and subjective evidence'of hydrocarbons, such as soil staining, obvious product odor, and photoionization detector (or similar instrument) readings are noted in the field on the Logs of Borings Groundwater Monitorinix Well Construction The monitoring well will be constructed in the boring with thread-jointed, 2-inch-inner- diameter, Schedule 40 polyvinyl chloride (PVC) casing No chemical cements, glues, or solvents will be used in well construction The screened portion of the well will consist of 2-inch-diameter wire-wrapped screen casing with 0.020-inch-wide slots 380W9w A-1