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1.2 Site Hazard Analysis <br />An evaluation of potential hazards at the facility is based on site conditions, previous <br />experience at other similar sites, and proposed field operations. The hazard evaluation <br />indicates that the following hazards may be present at this site having the potential for <br />exposure or risk to workers (employees): _ <br />1. Operational Hazards: Accidents involving heavy equipment operation are <br />among the most commonly encountered problems at hazardous waste sites, <br />due to decreased personal mobility and peripheral vision while wearing personal <br />protective gear. The operation of heavy equipment, particularly in the presence <br />of adverse weather conditions, is always an important consideration when <br />conducting field operations. Strict adherence to safe heavy equipment <br />operation will be the responsibility of the site Health and Safety Officer, while <br />extra precautions will have to be taken by all on-site workers. <br />Hot weather conditions at this site can cause physical discomfort, loss of <br />efficiency, and increased risk of personal injury. Special attention should be <br />given to heat stress when wearing of protective clothing and/or equipment <br />which inhibits natural body ventilation. Adequate shelter will be available to <br />provide shade for workers during their rest breaks and a program of forced <br />electrolyte replacement will be followed to reduce the risk of dehydration or <br />heat stress. <br />Hearing protection will be required by all personnel working around loud <br />equipment. Communication signals will be reviewed prior to working with <br />hearing protection equipment. An air horn or whistle may be used as back up <br />to hand signals for emergency communications. It is the responsibility of the <br />on-site health and safety officer to ensure that all workers understand the <br />communication system. <br />Care will be taken during excavation and trenching activities to ensure that <br />equipment is kept on level or moderately sloping surfaces that can support the <br />weight of the vehicle (to prevent rollovers), and that the angle of repose is <br />carefully determined and supporting systems are properly designed to prevent <br />headwall or trench failures. Trenches will be considered areas of limited egress <br />and the appropriate precuations will be practiced for entry and work in the <br />trenches. <br />2. Particulates: The operations of waste excavation and relocation can be <br />expected to cause dust and suspend air-borne particulates These particulates <br />could contain hazardous materials such as toxic metals and toxic organic dust <br />particles. Respiratory protection may be required for all personnel in the active <br />work zones. Dust supression may be accomplished by keeping the transfer <br />road damp with a water truck, and using either water or foam to keep waste <br />wet (damp, not saturated) during the digging and loading operations. This will <br />minimize potential impacts to workers and the general public in the vicinity of <br />the site. Operations may need to be curtailed on days with high winds. <br />3 <br />