That means blast site.
But what do you do after your blast site blows up?
Berlin Grunewald threatened by fire and explosions – Berlin’s Grunewald has been shaken by explosions, triggering a fire that threatened to burn out of control. The site: A munitions storage facility in a tinder-dry forest.
Since 1950 this area in West Berlin has been used to store 25 metric tons of World War II ammunition and other explosive ordnance. Controlled blasts are carried out there twice a year.