If you decided environmental engineering at University of Alabama, besides full tuition scholarship (Presidential) you would receive $2500/year engineering scholarship. Both are automatic based on your stats if you apply in time during the fall by the deadline.
This new facility on UA’s campus may interest you in the areas you want to study:
http://www.tuscaloosanews.com/article/20150524/NEWS/150529815/1291?p=3&tc=pg
“University of Alabama houses hub for water science”