Waste Canister Delivery Port 84-D-21 was a garbage launcher in Desrini District that suffered a massive failure. It normally launched its regularly scheduled payload of industrial refuse sealed in a shielded container. The projectile came into contact with a sizable obstruction, causing it to shred apart within the launcher barrel. As a result, the entire cannon assembly collapsed and four surrounding city blocks were wiped out. The canister itself contained 115 metric tons of concentrated industrial waste, including hyperbaride run-off, tricorrinium hexifluorine and destabilized hrucium.