Thought this was thread worthy given the general interest in this topic in the past. Wake declined to provide info to AP for their report.
http://bigstory.ap.org/article/573063197fa744ed832eeb7217b3d1b9/ap-exclusive-schools-ease-athlete-penalties-marijuana
http://bigstory.ap.org/article/573063197fa744ed832eeb7217b3d1b9/ap-exclusive-schools-ease-athlete-penalties-marijuana