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i <br /> 5.0 HAZARD'EVALUATION <br /> k <br /> Hazardous waste sites pose a multitude of health and safety concerns which could result <br /> in serious injury or death. These hazards are'fa:function of the nature of the site as well as, <br /> a consequence of the work being performed. They include: <br /> ❑ Chemical exposure <br /> ❑ Fire and explosion <br /> ❑ Oxygen deficiency <br /> 4 ❑ Biologic hazards <br /> ❑ Safety hazards <br /> ❑ Electrical hazards <br /> ` ❑ Heat stress <br /> ❑ Cold exposure <br /> ❑ Noise <br /> ❑ Ionizing radiation. <br /> CSeveral factors distinguish the hazardous waste site environment from other occupational <br /> situations involving hazardous substances. 'One important factor is the uncontrolled <br /> condition of the site. Even extremely hazardous substances do not endanger human <br /> health or safety if they are properly handled. However, improper control of these <br /> substances can result in a severe threat to site workers and the general public. <br /> Another factor is the large variety and number of substances that may be present at a site. <br /> Any individual location may contain hundreds or even thousands of chemicals. <br /> Frequently, an accurate assessment of all chemical hazards is impossible due to the large <br /> ' number of substances and the potential interactions among the substances. In addition, <br /> the identity of the substances on site is frequently unknown, particularly in the initial <br /> S:\13FS\ST0CKT0N\HSP0011 10/15/99 5-'1 <br />