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PHYSICAL HAZARDS <br /> The physical hazards attendant to the performance of excavations <br /> and soil borings are those associated with working on/near <br /> mechanized equipment. Appropriate procedures attendant to the <br /> operation of equipment to be utilized on this project are already <br /> in force and are well known to our staff . Further, work-rest <br /> cycles will be established and adhered to so as to provide <br /> adequate rest periods; liquids will also be available to preclude <br /> problems associated with heat stress. <br /> RISK FACTORS AND ASSOCIATED MITIGATION PROCEDURES <br /> ' Type of Rask Route of Exposure Mitigating Factor( s ) <br /> Chemical . . . . . . . . . . . . . . Inhalation. . . . . . . . . . . .Air purifying <br /> respirators with <br /> organic vapor and <br /> dust filters . <br /> --A hydrocarbon vapor <br /> survey meter will <br /> be used to determine <br /> exposure. <br /> Chemical . . . . . . . . Dermal /Ingestion. . . . . . . . . . . .Optimum use of <br /> equipment to minimize <br /> direct exposure <br /> to the soil . <br /> -Use of protective <br /> clothing. <br /> -The nature of the <br /> project does not <br /> involve the <br /> uncontrolled release <br /> of toxic materials . <br /> Flammable Vapors . . . . . . . .. . . . . . . . . . . . . . . . . . . .A hydrocarbon vapor <br /> meter will be used <br /> to determine the <br /> percent of the lower <br />' explosive limit <br /> ( LEL) present at <br /> the excavation. <br /> Physical . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . .Physical hazards <br /> attendant to this <br /> project are no <br /> different from those <br /> associated with <br /> B. <br />