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SECTION 3 POTENTIAi. HAZA_EnS ------------------------------------------------------------------------------------------------------ If the object may be of questionable weight, assistance in lifting from a second person should be sought. Proper personal lifting techniques should be emphasized. Supervisors shall demonstrate the use of the legs rather than the back for lifting during the Tailgate Safety Meeting. Excavation Safety Procedures If excavation of contaminated soil to a depth greater than five feet occurs and entry by workers is needed, then safety precautions must be adhered to as specified in OSHA regulations. The Supervisor shall question the real need to enter a trench greater than three feet deep. Remote sampling and/or excavation equipment should be used where possible. As a minimum, the following rules shall be strictly observed: Excavations into which employees may be required to descend shall be sloped (1 -to-1), benched, or shored, if they are more than five feet in depth. Excavation spoils shall be placed no closer to the edge of the excavation than one excavation depth away. No employee will work adjacent to any excavation until a reasonable examination of same has been made,to determine that no conditions exist exposing them to injury from moving ground. Trees, boulders, overhead lines or cables, and other surface encumbrances located so as to create a hazard to employees involved in excavation or in the vicinity thereof at any time during operations will be removed or made safe before excavating is begun. Access methods, such as ladders, will be used to enter or exit the excavation. All shoring or sloping plans for excavations deeper than 20 feet will be designed and approved by a California Registered Engineer. If work involves a working sewer line or manhole or any other service for flammable or toxic gases, or with a possibility of oxygen-deficiency, tests will be made and recorded before entering the excavation.