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SM HEALTH & SAFE'T'Y PLAN 5.2.6 Sunburn Hazards Skin exposure to ultraviolet radiation can result in sunburn. Use long-sleeved shirts, hats, and sunscreen to protect against sunburn. 5.2.7 Drilling Hazards Drilling hazards include noise, heavy equipment operation, rotative/moving parts, and trip/fall hazards. Non-drilling personnel should stay away from the area around the borehole during drilling. Hard hats and safety glasses shall be wom by all personnel within 30 feet of the raised mast of an operating drill rig. All personnel will be instructed as to the location of the "kill switch" on the drill rig. 5.2.8 Trench/Excavation Hazards OSHA requires that in all excavations, workers exposed to potential cave-ins must be protected by sloping or benching the sides of the excavation, or placing a shield between the side of the excavation and the work area. Any excavation 4 feet deep or deeper must have adequate means of access/egress and must be tested by a competent person for oxygen deficiency or hazardous atmosphere before anyone enters. Entry into excavations/trenches 5 feet deep or deeper requires an OSHA permit and compliance with OSHA regulations for trenching and excavation. During the work for this project, no one will enter trenches/excavations deeper than 4 feet. If soil is not inherently stable at this depth, appropriate protective measures (sloping, shoring, etc.) will be used. Care will be taken when sampling the excavation area from above to be sure the ground is stable and not undercut. NOTE: If entry into trenches/excavations greater than 4 feet deep is required, contact PHSO prior to entry. 5.2.9 Confined Space A confined space is any space a person can bodily ender that has limited egress and is not designed for continuous human occupancy. Confined spaces can pose many potential hazards including hazardous atmosphere, poor natural ventilation, engulfment, entrapment, and restricted entry for rescue purposes. All confined spaces must be considered immediately dangerous to life or health unless proven otherwise. If entry into a confined space is required, the PHSO must be consulted and a confined space entry plan prepared and followed prior to anyone entering the space. 5.2.10 Heavy Equipment Personnel working on site in the vicinity of operating equipment should maintain safe distances from the equipment to avoid contact with moving equipment parts such as backhoe/excavator arms and buckets (be aware of swing radius), tires, tracks, etc. Be sure heavy equipment operators can see you or know where you are. 5.2.11 'Traffic Hazards None. 1:1PROJEC'n6741.000\6741-07.doc 9