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How close can you dig to a marked utility with a machine?

  1. Within 12 inches of the mark

  2. 18 inches to either side of the mark

  3. 2 feet from the mark

  4. Directly over the mark with caution

The correct answer is: 18 inches to either side of the mark

The correct answer is based on regulations concerning safety when working near underground utilities. When a marked utility is identified, it is important to maintain a safe distance to prevent damage to the utility lines and avoid hazardous situations. The appropriate distance of 18 inches to either side of the mark helps ensure that the excavating machinery does not encroach upon the vicinity of the utility. This safety buffer allows personnel to work without the risk of hitting or damaging the utility, which could result in service disruptions, environmental hazards, injuries, or fatalities. The other options suggest either a distance that is too close to the marked utility or imply unsafe practices, such as digging directly over the mark, which increases the risk of encountering the utility and potentially causing harm or damage. Thus, maintaining an 18-inch distance enhances safety practices in excavation around utilities.