Schools that have a pretty high average PCAT like (UK and Utah) will have low failure rates. I've seen a couple pharmacy journal articles that show that PCAT score is one of the best methods of determining success.
University of Texas has an average PCAT of 77 for the current P1 class. I've been told that 7 have failed so far this school year and it looks like a few more will.
I know someone who went to Texas Tech a few years back, and he said that a couple would fail and a couple would just drop out here and there, but nothing like 10 in one year.