If a contractor has a shield with pumps for removing water from an excavation, can he proceed to place employees in it?

The correct answer indicates that a contractor can proceed to place employees in an excavation shield that includes pumps for water removal, provided all safety requirements and precautions are adhered to. The presence of pumps means that the risk of water accumulation, which can lead to cave-ins and other hazards, is being actively managed.

In excavations, water can pose serious risks, including destabilizing the sides of the trench and creating hazardous working conditions. The use of a shield designed for protection along with an effective drainage system allows for safer work environments. However, it's crucial to ensure that the pumps are operational and functioning correctly to handle potential water ingress throughout the duration of the work.

While safety measures are essential in all excavation scenarios, the existence of a shield with proper pump systems satisfies the primary concerns for employee safety in this context. If all safety guidelines and regulations – including inspections, appropriate training, and monitoring of conditions – are followed, employees can work safely within the shielded area.