[mykalberta]

The "pond" they talk about is just some glycol on the ground. They dont keep them in "ponds" incase someone is worred about some wayward ducks landing in a tailing pond of glycol.

I dont know how YYC does their deicing, whether right at the gate or at remote deicing pads or at a facility like YYZ has.

Either way it wouldnt have been much of a pond. Most likey some of the more anal retentive airlines asked for some deicing for some early morning flights as it wouldnt be needed for any other this time of year.