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o The potential for physical injury exists from public traffic on the site The site is is not open to public vehicles Work will '=' will not E3 be performed to the public nght-of-way If work is performed in the public right-of-way,orange vests shall be worn,a traffic control plan shall be prepared and followed and an encroachment permit from the appropriate government agency shall be obtained o The potential for burns from hot surfaces may exist from the operation of an internal combustion engine and/or an air compressor Compressed air piping is hot All hot surfaces shall be allowed to cool and/or be handled with thick cloth work gloves rr R o The potential for noise hazards exist at the site from the operation of It is not expected that noise levels will exceed the acceptable CAL-OSHA permissible exposure level of 90 dB However, workers should be aware of the presence of these hazards and take steps to avoid them Ear/ noise protection,though not required, shall be available to all personnel within the fob site in the event noise levels exceed worker comfort or protection levels o Personnel should be cognizant of the fact that when protective equipment such as respirators, gloves, and/or protective clothing are worn, visibility, hearing, and manual dexterity are impaired 43 Heat Stress: The potential for heat stress is present if the temperature exceeds 80°F Some signs and symptoms of heat stress are presented below • Heat rash may result from continuous exposure to heat or humid air • Heat cramps are caused by heavy sweating with inadequate electrolyte replacement Signs and symptoms include muscle spasms,heavy sweating,dizziness, nausea and fainting • Heat exhaustion occurs from increased stress on various body organs including inadequate blood circulation due to cardiovascular insufficiency or dehydration Signs and symptoms include pale, cool, moist skin, heavy sweating,dizziness,nausea and fainting • Heat stroke is the most serious form of heat stress Temperature regulation fails and the body temperature rises to critical levels Immediate action must be taken to cool the body before serious injury and death occurs Competent medical help must be obtained Signs and symptoms are red, hot, unusually dry skin, lack of or reduced perspiration,nausea,dizziness and confusion,strong,rapid pulse and coma 4 3 l Heat Stress Monitoang All personnel working for Clearwater at the fob site shall be monitored for heat stress Because workers at the job site are expected to be wearing permeable clothing (e g standard cotton or synthetic work clothes), monitoring for heat stress will consist of personnel constantly observing each other for any of the heat stress symptoms discussed above The Site Safety Officer shall mandate work slowdowns as needed 4 4 Fire Hazards: The potential for fire or explosion exists whenever flammable liquids or vapors are present above lower explosions limit(LEL) concentrations and sufficient oxygen is present to support combustion These potential fire hazards are addressed below o The potential exists for petroleum hydrocarbon vapors to exceed LEL concentrations within the wells However, well-gas generally does not contain sufficient oxygen to support combustion o In addition to the above, an operative fire extinguisher will be provided by Clearwater or Clearwater's subcontractor at the site All personnel shall be familiar with its location and use 45 Electrical Hazards No electrical enclosures will be opened unless power is disconnected Power will be verified disconnected with a meter prior to working on any circuits SSP 3 September 22, 1997