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Threshold Limit Deelues for Noise <br /> Time Period Duration per Da Sound Level dBA <br /> Hours 24 80 <br /> 16 82 <br /> 8 85 <br /> 4 88 <br /> 2 91 <br /> 1 94 <br /> Where noise levels may exceed these values, workers shall wear hearing <br /> protection designed to reduce harmful sound levels. <br /> AIRBORNE PARTICULATE DUSTS AND MISTS <br /> Airborne dusts shall be controlled using a water mist along roadways and <br /> wherever necessary to prevent migration of potentially toxic dust from <br /> leaving the site. <br /> HOWEVER, DUST SHALL BE CONTROLLED USING THE MINIMUM WATER <br /> NECESSARY TO PREVENT DUST MIGRATION. AT NO TIME SHALL WATER <br /> FROM THE SITE BE ALLOWED TO RUNOFF TO ADJACENT AREAS OR <br /> ACCUMULATE TO FORM POOLS OR PONDS . <br /> ACTIVITY HAZARD ANALYSIS <br /> TASK POTENTIAL HAZARD PRECAUTIONARY MEASURES <br /> 1.Site Setup a.Slips, trips & • Prevent soil from becoming too <br /> falls wet if possible <br /> • Wear non-skid boots <br /> • Keelo site free of excess debris <br /> b.Injury from Train all employees in site <br /> equipment & tools safety <br /> •Electrical injury • Train employees in the use of <br /> -Mechanical injury all tools and equipment <br /> • Maintain equipment and tools in <br /> proper condition according to <br /> manufacturers specifications <br /> • A11 electrical equipment shall <br /> be GFCI e ipped. <br /> Site Safety 6 Health Plan Rev./1.0 25 <br /> October 20, 1997 <br />