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APPENDIXA. <br /> FIELD METHODS AND PROCEDURES <br /> The following section describes the generalptocedures used in site characterizations for <br /> drilling exploratory borings and collecting samples. These procedures are used to <br /> provide consistent and reproducible results; however, conditions may exist where <br /> variations of these procedures are applicable. <br /> i <br /> Health and Safety Plan <br /> Field work performed by Stratus Environmental Inc. at the site will be conducted <br /> according to guidelines established in a Health and Safety Plan.(HSP). The HSP is a <br /> document which describes the hazards that may be encountered in the field and specifies <br /> protective equipment, work procedures, and emergency information. A copy of the HSP <br /> will be at the site and available for reference by appropriate parties during work at the <br /> site. <br /> Exploratory Soil Borings <br /> Locating Underground Utilities <br /> Prior to commencement of any work that is to be below surface grade, the location of the <br /> excavation, borings will be marked with white paint as required by law, Underground <br /> Service Alert (USA)will be notified. USA will contact the owners of the various utilities <br /> in the vicinity of the site to mark the locations of their underground utilities. Any invasive <br /> work will be preceded by hand augering to a minimum depth of five feet below surface <br /> grade to avoid contact with underground utilities. <br /> Soil Borings <br /> Soil borings will be drilled using a truck=mounted, hollow stem auger drill rig. Soil <br /> ;i samples for logging will be obtained from auger-return materials and by advancing a <br /> modified California split-spoon sampler equipped with brass or stainless steel liners into <br /> undisturbed soil beyond the tip of the auger. Soils will be logged by a geologist <br /> according to the Unified Soil Classification System and standard geological techniques. <br /> Drill cuttings well be screened using a portable photoionization detector(PID) or a flame <br /> ionization detector (FID). Exploratory soil borings not used for monitoring well <br /> installation will be backfilled to the surface.with a bentonite-cement slurry pumped into <br /> the boring through a,tremie pipe. <br /> i APPENDIX-soil boring <br />