Early last year, a box alarm was announced for a working structure fire. Due on the box were Ladder 5, Engine 7, Engine 6-1, Rescue 11, RIT 12. L5 was first due laying in from the hydrant. They attempted an exterior attack, but found their crosslays were jammed under the main. While L5 was working to get a line off, E7 arrived, placed (3) 1 3/4" handlines in service on the A, B, and C sides of the detached garage. While moving in aggressively, E7's crew was confronted w/ a large O2 tank. The tank gave way under the flames causing a huge explosion that was heard and felt nearly 5 miles away. The fire was knocked down in about 15 minutes. No injuries were reported. The structure was however a total loss.