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• 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 stressvarious�f ion annus body organs including inadequate blood circulation due to cardiovascular insufficiency or dehydration. k 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; nauseas dizziness and confusion.; strong, rapid pulse and coma. 43-1 Heat Stre,5s Monitoring All personnel working for Cearwater at the job site shall be monitored for heat stress. Because workers at the job site are expected to be wearing permeable clothing (e.- 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 file extinguisher will be provided by _ Clearwater or Clearwater's subcontractor at the site. All personnel shall be familiar with its location and use. Ik 4.5 Mectricai Hazards: No electrical enclosures will be opened unless power is disconnected. Power will be verified disconnected with a meter prior to working g on any circuits. 5.0 PERSONAL PROTECTIVE EQUIPMENT Level: D personal protection equipment is expected to be the highest protective level required. to complete the field activities for this project. Modified Level C protection may also be required at the discretion of the Site Safety Officer. The following lists summarize the personal protective equipment that shall be available to all field personnel working in the work area: r 4 I/1S/95