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0963c*-3 <br /> TABLE 1 KNOWN SITE CONTAMINANTS <br /> Contaminant PEL IDLH <br /> Copper dusts and mists 1 mg/cu.m N.A. <br /> Nickel metal and soluble compounds 1 mg/cu.m N.A. <br /> Lead and inorganic lead compounds 0.05 mg/cu.m variable <br /> Tin compounds, inorganic 2 mg/cu.m 400 mg/cu.m <br /> Due to the nature of the investigation, exposure to any of the hazards <br /> will be minimal. Therefore, if the Site Safety Officer observes dust <br /> to be approaching the breathing zone, he will require that respirators <br /> be worn. A half-mask respirator with cartridges for dusts, mists and <br /> fumes is the minimum acceptable respiratory protection. <br /> 5.0 SITE LAYOUT <br /> Because of the relatively low hazard associated with the work to be <br /> performed, dividing the site into the customary exclusion, contamina- <br /> tion reduction, and support areas is unnecessary. The site may be <br /> entered only by authorized individuals. Such individuals must meet <br /> medical surveillance and safety training requirements specified in <br /> this plan and must wear the specified protective equipment upon <br /> entering. <br /> 6.0 PERSONNEL PROTECTION <br /> The protective equipment required for the sampling effort is the same <br /> for both phases. The personal protection for EPA Level D classified <br /> work will be enforced. An EPA Level C contingency will be observed. <br /> Equipment specifications are based on the foregoing hazard assessment. <br />