Topics included in this safety video are:
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causes of fatalities,
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soil,
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causes of cave-ins,
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what is a trench,
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OSHA standards,
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what the competent person must do,
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inspections,
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hazardous atmospheres,
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water control,
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soil classification,
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manual testing,
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and the pocket penetrometer.
Producer: Safety Source Productions
Runtime: 29 minutes
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