What is the minimum staffing level for utility-23?

What is the minimum staffing level for utility-23?

• A. 0
• B. 2
• C. 1
• D. 3

Answer: (C)

The minimum staffing level is the smallest number of people needed to operate and monitor utility-23 safely and effectively, including responding to alarms and performing essential tasks. If the system is designed to be monitored and controlled by a single qualified operator, one person on duty can handle normal monitoring, control actions, and routine checks, plus respond to alerts according to procedures. Zero staff would leave the system unmonitored, which is unsafe and non-compliant, while having more than one person exceeds the minimum required in normal operation. Therefore, the minimum staffing level is one.

The minimum staffing level is the smallest number of people needed to operate and monitor utility-23 safely and effectively, including responding to alarms and performing essential tasks. If the system is designed to be monitored and controlled by a single qualified operator, one person on duty can handle normal monitoring, control actions, and routine checks, plus respond to alerts according to procedures. Zero staff would leave the system unmonitored, which is unsafe and non-compliant, while having more than one person exceeds the minimum required in normal operation. Therefore, the minimum staffing level is one.