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5.0 HEALTH AND SAFETY PLAN <br /> 5.1 SAFETY STANDARDS <br /> CAUOSHA safety rules and regulations we will follow fully and completely during <br /> this project. Personnel working near the construction area will be required to <br /> wear hard hats, safety glasses and safety vests. All personnel will be advised to <br /> avoid contact with refuse. <br /> 5.2 SITE CONDITIONS <br /> The work does not include excavation of refuse or contact with refuse; however, <br /> the work is in the vicinity of buried refuse and other materials. Potential hazards <br /> exist due to the presence of buried refuse, including those associated with landfill <br /> gas (LFG) and the refuse itself. Also, the work is in the vicinity of an oil pipeline, <br /> the location of which will be clearly marked prior to excavation. <br /> 5.3 LANDFILL GAS <br /> When buried in a landfill, refuse and other organic material produces landfill gas <br /> (LFG). LGF is approximately 50 percent methane by volume and may contain <br /> other contaminants. Potential hazards associated with LFG are due to: <br /> 1. Oxygen deficiency <br /> 2. Combustible characteristics of LFG <br /> 3. Potential for hydrogen sulfide in LFG <br /> Potential hazards include: <br /> 1. Fire <br /> 2. Explosion <br /> 3. Asphyxiation <br /> LFG may also contain trace concentrations of organic compounds. Dilution of <br /> LFG in air to below the OSHA safety limits of 0.5 percent methane (10 percent of <br /> the Lower Explosive Limit) usually reduces the concentration of trace <br /> components to below detection limits. <br /> LFG can move through soils, especially through sandy layers that exist at the <br /> site. Movement through soils can remove the odorous compounds of LFG, such <br /> that the LFG can be detected only with the proper test equipment. <br /> Work Plan—Soil Gas Monitoring Well Installation San Joaquin County <br /> Corral Hollow Sanitary Landfill Public Works Department <br /> Page 5 of 7 Solid Waste Division <br />