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Anheuser-Busch/Arch Road <br /> Site Safety Plan <br /> February 11, 1992 <br /> 4.2 Site Tasks <br /> The field tasks at this , site- may include: ` <br /> ♦ Monitoring well installation <br /> ♦ Well development' <br /> ♦ Groundwater sampling <br /> ♦ Excavation/trenching <br /> 4.3 Job Task Hazards <br /> 4.3. 1 All Field Tasks: 'The" following hazards may be encountered. <br /> ♦ Slippery -Surfaces: <br /> All employees must wear ANSI approved work boots with steel <br /> toe protection. Skid proof. soles are highly recommended. <br /> Organic Vapors: <br /> The inhalation of volatile organic vapors during all <br /> operations can pose a potential health hazard. Hazard <br /> reduction procedures include monitoring the ambient air with <br /> a PID and/or FID and' use of Personal Protective Equipment <br /> indicated on Table II. Workers should stand upwind of the <br /> source of' contamination whenever possible. If ambient air <br /> levels in the breathing zone exceed 50 ppm, half face <br /> respirators equipped'' withorganic vapor cartridges must be <br /> worn. If ambient air levels in the breathing zone exceed <br /> 100 ppm, full face respirators equipped with organic vapor <br /> cartridges must be worn. <br /> ♦ Flammable Vapors: <br /> Presence of flammable vapors can pose a potential fire <br /> hazard and health hazard. ' Hazard reduction procedures <br /> include monitoring the ambient air with an Oz/LEL meter. If <br /> the LEL reading exceeds 20%, leave .the site immediately and <br /> contact the fire department. <br /> ♦ Oxygen: <br /> Atmospheres that contain a level of oxygen greater than 23% <br /> .; 6 <br />