Does the Keurig one cup coffee maker have any aluminum parts?

In short, probably yes.

Since the water is stored mostly cold and heated up quickly when needed, like inexpensive drip coffee makers, the heating element probably uses an aluminum water line to transfer heat to the water.

I hope I'm wrong, but Keurig needs to quit avoiding the question and say that no aluminum comes in contact with the water if that is the case.

Just a note, although aluminum has been removed from nearly all food preparation, it is still present in at least three of the four most popular methods of making coffee. It is used in inexpensive drip style makers, espresso makers, and stove top mokka makers. The fastest growing way to make coffee is the Keurig. Please tell us that Keurig has corrected this oversight and does not use aluminum to heat their water. Obviously, the disposable cups have aluminum lids, like some single serving yogurts.