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w � <br /> 1 <br /> 1 <br /> is Noise <br /> For any noise producing activities present on site, such as excavation and drilling operations,the SO shall <br /> advise all personnel about those site activities for which there is the'potential for exposure to high noise <br /> levels. Hearing protection such as ear plugs or ear muffs shall be available;iat the site for use by personnel <br /> I. who must work in high noise areas..This protection shall be mandatory for,all personnel who are exposed <br /> to levels in excess of 90 decibels,A-weighted, during site activities.11The SO shall designate appropriate <br /> + hearing protection,based on noise levels and length of exposure. <br /> Underground Utilities <br /> Numerous serious accidents and extensive property damage occur when power excavating equipment <br /> encounters unexpected underground utility lines. Such utilities include gas',lines, electrical lines, sewers, <br /> and telephone lines. The probability of accidentally encountering these lines is minimized if the lines are <br /> marked by a line location service. Appropriate safety controls will be implemented to avoid disturbing <br /> I� <br /> { underground utilities. TtEMi will contact the line location service(e.g.,Underground Service Alert at 800- <br /> 422-4133)prior to any subsurface investigations. <br /> Overhead Utilities <br /> Masts on drill rigs or other construction equipment often reach heights of 30 feet or more and can easily <br /> come in contact with overhead utility lines. The potential for contact with overhead utility lines will be <br /> I <br /> minimized by keeping the mast at least twenty feet away from the lines or by using special drill rigs with <br /> ;i <br /> ll low overhead clearances. <br /> 1 i <br /> Heat Stress i} <br /> I Because heat stress is one of the most common and potentially serious illnesses that hazardous operations <br /> workers encounter, regular monitoring and other preventative measures are`vital. The potential exists for <br /> heat rash,.heat cramps,heat exhaustion,and heat stroke. The action level for heat stress monitoring is any <br /> temperature greater than 75°F. Whenever the action level for heat stress has been reached,the SO will alert <br /> f all site workers to watch for the symptoms of heat stress,and increase theirrconsumption of water and <br /> electrolyte-containing beverages. �} <br /> 7 <br />