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d. Coordination with Facility Operation <br /> County facilities will be in operation during maintenance work. Contractor <br /> shall not inhibit or obstruct facility operations. Contractor's representative <br /> shall list employees of the Contractor on site each working day at each <br /> facility's scale house. <br /> e. Smoking Privileges <br /> Smoking will be allowed only in Contractor's vehicles when located in an area <br /> not subject to fire. Smoking materials will be contained within the vehicles. <br /> Throwing burning materials, such as cigarettes, from the vehicles will result in <br /> revoking smoking privileges for all Contractor employees. <br /> f. Responsibility For Safety <br /> Contractor is solely and wholly responsible for the safety of Contractor's <br /> workers. Contractor shall follow OSHA safety standards. <br /> Work is anticipated to involve contact with refuse and landfill gas. The work of <br /> this contract includes excavation of refuse or contact with refuse. Other work <br /> is in the vicinity of buried garbage and other materials in the sanitary landfills. <br /> Potential hazards exist due to the presence of these buried materials, <br /> including those associated with landfill gas (LFG) and the refuse itself. <br /> 3. Landfill Gas <br /> When buried in a landfill, refuse and other organic material produces LFG. LFG is <br /> approximately 50 percent methane by volume and may contain other <br /> contaminants. Potential hazards associated with LFG are due to: <br /> a. Oxygen deficiency <br /> b. Combustible characteristics of LFG <br /> c. Potential for hydrogen sulfide in LFG <br /> Potential hazards include: <br /> • Fire <br /> • Explosion <br /> •Asphyxiation <br /> LFG may also contain trace concentrations of organic compounds. Some of <br /> these compounds are known to be hazardous in high concentrations or may <br /> have carcinogenic potential. When present in LFG, such compounds are usually <br /> in the parts-per-million or parts-per-billion range. Dilution of LFG in air to below <br /> the Occupational Safety and Health Administration (OSHA) safety limits of 1.25 <br /> percent methane (25 percent of the Lower Explosive Limit) usually reduces the <br /> concentration of trace components to below detection limits. <br /> FH-LFG Well Installation GX-2A 3 Revised 6-14-11 <br />