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• <br /> Noise <br /> . Exposure to contaminated particulate matter while moving excavated soil <br /> • <br /> Possible contact with gas or power lines during excavating <br /> All personnel operating the heavy equipment must be very familiar with the equipment's <br /> A operating procedures and the safety precautions to be taken They must know how to shut <br /> the equipment off in case of an emergency <br /> Noise levels for heavy equipment operators may be expected to exceed 85 decibels on the <br /> • A-weighted scale Therefore, heavy equipment operators will wear disposable earplugs or <br /> earmuffs with a Noise Reduction Rating (NRR) of at least 25 decibels A hearing <br /> conservation program, in conformance with OSHA requirements, will be an effect <br /> • throughout the duration of the project <br /> Care will be used when moving excavated soil to avoid creating a dust An air purifying <br /> •10 <br /> respirator may be required while performing any operation where sufficient dust may be <br /> generated <br /> The Project Manager shall investigate all excavation areas for gas and power lines before <br /> • digging This includes contacting the Underground Service Alert organization at <br /> (800) 642-2444 No excavation will occur an any area where such lanes are found <br /> • Excavation workers are exposed to many hazards, but the chief hazard as danger of cave- <br /> ins Cal/OSHA requires that, in all excavations, employees exposed to potential cave-ins <br /> must be protected by sloping or benching the sides of the excavation, by supporting the <br /> • sides of the excavation, or by placing a shield between the side of the excavation and the <br /> work area <br /> The dimensions of the excavation at this site will be approximately 15 feet by 20 feet, with a <br /> 0 depth of up to 17 feet Entry will be made into the excavation occasionally to take soil <br /> rima is(ml s) Page 8 <br /> • AMERICAN <br />