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4.0 TASK-SPECIFIC SAFETY AND <br /> HEALTH RISK ANALYSIS <br /> 4.1 Hazard Analysis <br /> Potential exposure pathways, chemical hazards, and physical hazards are all involved in an <br /> analysis of risk. See Table 4-1 for a risk analysis of each of the tasks to be performed. Overall, <br /> the physical and chemical hazards are as summarized below: <br /> Physical hazards are associated with: <br /> Slip, trip and fall hazards <br /> Chemical hazards are associated with: <br /> Site personnel contact with potentially contaminated soil. <br /> The overall hazard is LOW. <br /> 4.2 Chemical Hazards <br /> Chemical contaminants listed in Table 2-1 may or may not present health hazards to field <br /> personnel. The concentration of the contaminant, extent of area contaminated, and the <br /> likelihood of exposure all must be considered. Additionally, personal protective equipment <br /> minimizes exposures substantially. <br /> McLaren/Hart considers the hazards posed to site personnel performing drilling and sampling <br /> activities to be low, as diesel contamination is not expected (defensive sampling program). EPA <br /> Level D PPE is appropriate, however, and skin and eye protection are recommended during <br /> sample collection. <br /> An assessment of the chemicals of concern, including exposure limits, odor thresholds, and health <br /> effects, is presented in Table 4-2. <br /> 11 <br />