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U <br /> , 1 <br /> 3.2 PHYSICAL (SAFETY) HAZARDS AND CONTROLS (REFERENCE CHIM ID SOP HS-0) <br /> Hazard Engineering or Administrative Controls <br /> Flying debris/objects Provide shielding and PPE. <br /> Noise > 85 dBA Noise protection and monitoring required. <br /> Steep terrain/unstable surface Brace and shore equipment. <br /> Build-up of explosive gases Provide 20-]b A,B,C fire extinguisher and ventilation. <br /> Build-up of static electricity No spark sources within 50 feet of an excavation, heavy <br /> equipment, or UST removal. Ground as appropriate. <br /> Gas cylinders Make certain gas cylinders are properly anchored and <br /> chained. Keep cylinders away from ignition sources. <br /> High pressure hose rupture Check to see that fitting and pressurized lines are in good <br /> repair before using. <br /> i <br /> Electrical shock Make certain third wire is properly grounded. Do not tamper <br /> with electrical wiring unless qualified to do so. <br /> Suspended loads Work not permitted under suspended loads. <br /> Moving vehicles Backup alarm required for heavy equipment. Observer <br /> remains in contact with operator and signals safe backup. <br /> Personnel to remain outside of turning radius. Equipment <br /> that could fall or roll into the excavation shall be kept at least <br /> two (2) feet from the edge of the excavation, or retaining <br /> devices sufficient to prevent items from falling or rolling into <br /> the excavation will be used. <br /> Overhead electrical wires Heavy equipment (e.g., drill rig) to remain at least 15 feet <br /> from overhead powerline for powerlines of 50 kV or less. <br /> For each kV > 50, increase distance 1/2 foot. <br /> Buried utilities,drums, tanks, and so Locate buried utilities, drums, tanks, etc. prior to digging or <br /> forth drilling, and mark location. At least two(2) days prior to the <br /> start of any digging or excavation work, notify Regional <br /> Notification Center in the area involved and known owners of <br /> underground facilities in the area of the anticipated digging or <br /> excavation work. <br /> Slip; trip, fall hazards due to muddy Use wood pallets or similar devices in muddy work areas. <br /> work areas <br /> Back injury Use proper lifting techniques, or provide mechanical lifting <br /> aidS. <br /> Confined space entry Permit and safety plan required (reference C112M HILL SOP <br /> HS-17). <br /> Protruding objects Flag visible objects. <br /> 6 <br /> SF01001385F.WP5 <br />