As designed, the vessel was to be equipped with radar, echo sounder, radio, and daytime accommodation for the off-duty shift.

[1] The fireboat is equipped with: Built in Owen Sound, Ontario by Russel Brothers Limited with a modified Tugboat hull.

[2] William Lyon Mackenzie operates 12 months a year, providing emergency services within Toronto Harbour and the adjacent waters of Lake Ontario.

William Lyon Mackenzie does duty during the Canadian International Air Show, using its spray to make a very visible visual point of reference at the centre of the display area.

[4] William Lyon Mackenzie was called upon to give the newly commissioned tugboat Iron Guppy a ceremonial shower when she joined PortsToronto's fleet, on July 23, 2016.