MSU's policy is a suspension for 50% of the season for a 2nd failed test, a full season for a 3rd, and dismissal for a 4th. So yeah, I don't think there's much doubt this is a 2nd positive drug test for someone.
UM has substantially beefed up what was one of the most lenient policies in the SEC. Their new policy is suspension for 25% of remaining games for a 2nd offense and dismissal for a 3rd.