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SEMINFOUR Site Hazard Analysis other traffic control devices are available. Project vehicles will be parked in designated parking areas that do not impede facility traffic or obstruct vision. Project field personnel should be aware that vehicles and heavy equipment may be operated in areas adjacent to the subject sites. Vehicle operators will check carefully for nearby traffic before proceeding at a cautious pace on roadways. Care should be taken to ensure that trucks,equipment, and materials are placed so obstruction of local traffic is minimized. During work activities,it may become necessary to move equipment in order to accommodate traffic and site activities. Refer to SMS 032 on work zone traffic control. 4.1.9 Excavation Safety Guidelines (SMS 013 &034) Underground Service Alert(USA) (1-800-227-2600)will be contacted 2 working days prior to any type of excavation to ensure underground facilities are located and avoided(8 CCR 1541(b)(2) and SMS 034). An open excavation/trench may be present. Personnel are prohibited from entering any trench or excavation that is not appropriately protected.The excavation contractor has to provide a trained competent person in accordance with OSHA and state specific regulations. All URS personnel working on the Site will have Competent Person Training. Monitoring will be conducted to detect hazardous atmospheres or other hazardous conditions within the excavation.A competent person is required to certify the excavation to be stable if it is less than 5 feet in depth.All shoring for excavations greater than 4 feet in depth is required to be certified by a competent person.Personnel that observe an excavation condition believed to be unsafe shall immediately advise the SM of the unsafe condition.All walkways over the excavation/trench must meet OSHA and state specific requirements regarding load limits, railings,and construction materials. See URS SMS 13 for additional information.Employees are responsible for their own safety including recognizing and avoiding excavation hazards (SMS 013). Personnel that observe an excavation condition believed to be unsafe shall advise the backhoe operator of the unsafe condition.URS 2011 California Excavation Permit must be available at the site during field activities (Appendix E). ' In the event of a cave-in or the excavation becomes a threat,all personnel will be evacuated from the trench until the hazardous situation is properly controlled or eliminated.In the event Site personnel become trapped in the excavation,call the Fire Department at(209)464-4650.This predetermined evacuation area will be discussed in the tailgate safety meeting. 4.1.10 Portable Ladders (SMS 028) All personnel are responsible for inspecting ladders prior to use and the proper use of stepladders and straight and extension ladders as described in SMS 028. Document ladder safety use and inspection in the project safety log.URS employees that observe a condition believed to be unsafe shall advise the employee of the unsafe condition. H:\WPROCESS\25532\WORLDENTERPRISE\WELL DESTRUCTIONWTTACHMENT C WORLD ENTERPRISES HSP TG EDITS.DOC\18-NOV-11\\4-5