What should be done with liquid LP-gas in a container that is to be abandoned underground?

The correct action regarding liquid LP-gas in a container that is to be abandoned underground is to remove the liquid from the container. This is essential for safety reasons, as leaving LP-gas in an underground container poses significant risks. If the container were to leak or if any pressure built up within it, it could create a hazardous situation that involves fire or explosion risks.

Removing the liquid ensures that no flammable gas is left in the container, thereby mitigating the potential for accidents or environmental contamination. Abandoning a container with gas still inside not only creates safety hazards but could also lead to compliance issues with local regulations governing hazardous materials. Safe practices dictate that any LP-gas should be properly evacuated and disposed of according to applicable standards before abandoning the container underground.