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device may also be in the form of a barrier that quickly stops the machine when any part of the operator's body contacts the barrier. The barrier may be a bar, a rod, a wire, or an electric -eye beam extended across the danger zone. • General -Lockout, blocking, or equivalent measures shall be employed to ensure that systems and equipment that need to be deactivated (to do the planned service) are not reactivated at inopportune times. 4.2 ELECTRICAL HAZARDS Types)/Source: • Underground Utilities • Overhead Power Lines • Electric Tools/Generators Qualified Exposure Risk: Moderate Primary "Control": • Procedural: (Review as-builts and contact Dig Alert, as described herein) 4.2.1 Underground Utilities Hazard: Contact with electrical current can cause shock, electrical burns, and/ or be instantly fatal. If the heavy equipment makes contact with electrical wires, it may or may not be insulated from the ground by the tires of the carrier. Under either circumstance, the human body, if it simultaneously comes in contact with the equipment and the ground, will provide a conductor of the electricity to the ground. Controls : Demarcate all trenching locati ons, first. Contact Dig Alert (811) 2- 14 days prior to work and review as -built plans before performing any excavation activity. It is advised that a private utility locator be contacted to supplement Dig Alert's demarcations, especially when the project is on private property. Soil intrusive work shall not proceed until all locating activities have been completed and fully documented in the site records. The initial site safety orientation meeting for all personnel on-site shall include a review of the underground utility locations and the location of the site map, showing the position of any underground utility lines. The site safety orientation shall include a site walkover of each marked utility or line. COSTERA WASTE &ENVIRONMENTAL, INC. ZZ MAY 4, 2021