Based in the Fire Headquarters in Watertown Square, the Watertown Fire Department responds to more than 4,000 calls a year. Among its fleet, run out of three stations, are three fire engines, two ladders and two ambulances. Fire Headquarters, or Station One, is home to Engine One, Engine Four, Ladder One and C2, the command vehicle; it also has a rescue boat. Fire officials conduct fire inspections throughout Watertown.