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7.3 Electrical Storm Guidelines In the event that lightning and/or thunder are observed while working on Site, all on-Site activities shall stop, and personnel shall seek proper shelter (e.g., substantial building, enclosed vehicle, etc.). Work shall not resume until the threat of lighting has subsided and no lightning or thunder has been observed for 30 minutes. If the possibility of lightning is forecast for the day, advise the on-Site personnel on the risks and proper procedure at the pre-work safety briefing. Continuously monitor for changing weather conditions and allow enough time to properly stop work if lightning is forecast. 7.4 Earthquake Procedures In the event that an earthquake occurs while working on Site, the following section provides procedures to be followed to prepare for and assist workers during and after an earthquake at the Site. While very intense earthquakes are rare, less intense earthquakes can also be dangerous, resulting in utility line damage/failure, fires, structural failures, and slope failures. 7.4.1 Before an Earthquake • Determine in advance, potential structural hazards at the Site, alternate exits and stairwells from the work location(s), and the route(s)to follow to reach the exits in case an evacuation is necessary. • Consider your supply of food and water on hand and plan accordingly. • Keep a flashlight and portable radio and check batteries periodically. • Have a fully stocked First Aid kit, plus emergency blankets (if applicable). 7.4.2 During an Earthquake While Working in All Areas: • Remain calm and do not panic. • Stop work. Have subcontractors shut down heavy equipment(if in operation). • If subcontractor employees are working in a trench and/or excavation, have them exit the trench/excavation immediately. Do not use or do any activity that could be a source of ignition (smoking, cutting, or welding). While Working Inside Buildings or Structures: • Drop: Drop down to the floor • Cover: Take cover under a sturdy desk, table, or other furniture. If that is not possible, seek cover against an interior wall and protect your head and neck with your arms. Avoid danger spots located near windows, hanging objects, mirrors, or tall furniture. • Hold: If you take cover under a sturdy piece of furniture, hold on to it and be prepared to move with it. Hold the position until the shaking stops and it is safe to move. • DO NOT USE ELEVATORS. WALK, DO NOT RUN, and keep noise to a minimum. DO NOT PUSH or crowd. Use handrails in stairwells and move to the inside (most continuous handrail) if you encounter emergency personnel. Move to the designated muster point area, unless otherwise instructed. Check doors for heat before opening. 5175.0001S102/HSP Site-Specific Health and Safety Plan I ROUX 120