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HEALTH AND SAFETY PLAN <br /> SAFETY STANDARDS <br /> CAL/OSHA safety rules and regulations we will follow fully and completely during this project. <br /> SITE CONDITIONS <br /> The work does not include excavation of refuse or contact with refuse; however, the work is in the <br /> vicinity of buried refuse and other materials. Potential hazards exist due to the presence of buried <br /> refuse, including those associated with landfill gas (LFG) and the refuse itself. Also,the work is <br /> in the vicinity of an oil pipeline, the location of which will be clearly marked prior to excavation. <br /> LANDFILL GAS <br /> When buried in a landfill, refuse and other organic material produces landfill gas (LFG). LGF is <br /> approximately 50 percent methane by volume and may contain other contaminants. Potential <br /> 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 LFG in air to <br /> below the OSHA safety limits of 0.5 percent methane (10 percent of the Lower Explosive Limit) <br /> usually reduces the concentration of trace components to below detection limits. <br /> LFG can move through soils, especially through sandy layers that exist at the site. Movement <br /> through soils can remove the odorous compounds of LFG, such that the LFG can be detected only <br /> with the proper test equipment. <br /> REFUSE <br /> Refuse will not be excavated in this investigation. The following is provided for completeness. <br /> The landfill contains household refuse, demolition debris,tree trimmings, and miscellaneous <br /> refuse. To the best knowledge of the County, hazardous materials have not been disposed at the <br /> site. However, some items that are currently defined as hazardous waste (paint, insecticides, etc.) <br /> may have been included in household waste disposed at the site. <br /> Phase 2 Investigation Solid Waste/Public Works <br /> Corral Hollow Sanitary Landfill Page 3 of 5 San Joaquin County—January 12,2006 <br />