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rrcun uuiw uy:40nI u ,yla7a4]oGa .� Lead is toxic by ingestion, inhalation, eye and dermal contact. A cumulative poison. Blood levels above 0.05% are chronic. Chronic poisoning can result in abdominal pain, constrictions, gingival lead line, wristdrop and colic. Target organs are the central nervous system, kidneys and blood. Exposure Routes: Inhalation, Ingestion, Dermal Contact Exposure Limits: OSHA pFL-= 0.05 Mg/m3 ACGIH TLV=0.1 MS1m3 4.2 Physical Hazards Physical Hazards are inherently present during field operations. Physical hazards present at the project site will include the mechanical hazards and noise exposure associated with the operation of heavy equipment, slip-trip-fall hazards associated with operations conducted in a field environment, and skeletal-musculature injury hazards resulting from work-performed outdoors. The typical physical hazards present on the site and methods to prevent injury due to these hazards are described below: Heavy Equipment Operation The safety hazards associated with the operation of heavy equipment can be effectively elated by the employee if a constant awareness of these hazards is maintained. Constant visual or verbal contact with the equipment operator will facilitate such awareness. Slip-Trip - Fall Hazards While it is difficult to prevent slip-trip-fill hazards, risk of injury will be minimized by implementing proper site control measures, such as: daily safety meeting, proper footwear and by keeping the work area free of obstructions. Lifting Hazards Feld operations often require that heavy physical labor tasks be performed. All employees will be instructed in proper lifting techniques. Additionally, employees will be instructed to not attempt to lift large or heavy objects without assistance. Tool and Equipment Hazards Safety hazards present during the use of tools and equipment are generally associated with improper tool handling and inadequate maintenance, Management of these heaards involve rigorous maintenance of tools and equipment and effective training of employees in the proper use of these tools. Open Excavation Open excavations may be present during the remedial actions at the project site. Excavations will be maintained in compliance with appropriate OSHA regulations for confined space. Nevertheless, constant employee safety awareness while working near excavations will lessen the associated hazards. Shored Excavations In the event of the excavated areas being unstable and/or greater than five feet in depth where personnel must enter the space to perform construction acdvities, shoring will be installed.