As the on-scene leader, which of the following postfire actions should you take?

In the context of firefighting and managing postfire actions, being the on-scene leader involves performing crucial tasks to ensure safety and prevent any re-ignition of the fire. Choosing all of the options—testing for explosive gases, setting a reflash watch, and overhauling the fire—demonstrates a comprehensive approach to fire safety and incident management.

Testing for explosive gases is vital to assess whether the area contains hazardous materials that could lead to an explosion. After a fire, there can still be residual gases present that pose a danger to personnel and must be addressed before proceeding with further actions.

Setting a reflash watch is a preventative measure that involves monitoring the site for any signs of the fire reigniting. This ongoing vigilance is essential to ensure that the area remains safe after the initial fire has been extinguished, as there could be potential for hidden embers or hot spots that could flaring back to life.

Overhauling the fire is the process of physically inspecting and extinguishing remaining hotspots or smoldering materials. This critical step helps to ensure that the fire is completely out and minimizes the risk of re-ignition. Thoroughly checking all areas affected by the fire helps to prevent any resurgence or failure of containment.

Collectively