When notifying the Fire Department of an out of service standpipe system, which information is NOT required?

When notifying the Fire Department about an out-of-service standpipe system, the information that is not required pertains to the type of building materials used. This detail does not directly impact the urgency or response actions that the Fire Department must take regarding the standpipe's status.

What is essential, however, includes the location of the standpipe, as this allows emergency responders to quickly identify where the issue is. Additionally, providing the reason for the standpipe being out of service is crucial for understanding any potential hazards and the appropriate response needed. Lastly, giving an estimated time for repairs helps the Fire Department plan their operations accordingly, ensuring they are aware of when the system might be restored to service.

Therefore, the specific details about building materials are not relevant in the context of notifying the Fire Department, making that information unnecessary for their response.