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6. Workers should wash hands prior to eating, drinking, smoking, or changing <br /> ® clothes. <br /> ® 1_ LANDFILL SAFETY PROCEDURES <br /> ® 1 . As a general safety rule, LFG work should be performed by a team composed <br /> ® of a minimum of two people. In situations where hazards are minimal, and <br /> ® where it is necessary to allow an individual to work alone, another responsible <br /> ® individual must be aware of the lone workers task and scheduled time of <br /> completion/return, and if possible should monitor the individuals progress. <br /> 2. When working on (or within 1 ,000 feet of) an active or completed solid waste <br /> landfilled area, workers should be alert to the-existence of (or potential for) <br /> hazardous conditions,'e.g.; the presence of LFG.."A distance of 1,000 feet is <br /> used by some authorities as the maximum distance that LFG will migrate under <br /> average conditions. Migration distance, however, may be greater through <br /> underground conduits, in favorable subsurface soil conditions, or where surface <br /> conditions interfere with normal surface venting. <br /> Hazards that might occur could be one or more of the following: <br /> a. Fires may start spontaneously from exposed and/or decomposing waste. <br /> b. Fires and explosions in confined or enclosed spaces from the presence of <br /> methane gas. <br /> c. Landfill gases may cause oxygen deficiency in underground trenches, vaults, <br /> conduits, and structures. <br /> d. Hydrogen sulfide (H2S) may be present. H2S is a colorless, toxic, very <br /> flammable gas which, in low concentrations, has an offensive odor <br /> described as that of rotten eggs. H2S, however, quickly numbs the <br /> olfactory senses so that reliance upon the sense of smell can lead to a very <br /> dangerous condition and even cause virtually instant death. <br /> e. Sudden subsidence or collapse of the landfill surface during activities such <br /> as drilling. <br /> 3. A confined space is defined as a space where existing ventilation is insufficient <br /> to remove dangerous air contamination and/or where there is an oxygen <br /> deficiency, and where ready access/egress to escape, provide aid, or to remove <br /> a disabled employee is difficult. Work in confined spaces is normally governed <br /> by strict procedural regulations, so check local codes. <br /> 1: 13 <br />