[f5fstop]

More likely cause, if there is one, is the tires. Switch them and see if the pull goes to the other side.
However, if there is a slight pull to the right, the alignment shop maybe compensating for a left road crown.

Now, in regard to the runway. Are you sure there is no crown to one side or the other? If no crown, water will pool on the concrete. It might be a slight crown, but I would think there is one to help water runoff.