You should drink beer instead. As long as it's a beer with low ABV (5% or lower I think) it still hydrates you. Although to be honest, I'm kind of having a hard time finding great beers under 5% ABV that are readily available.
Although if I recall correctly you're at the University of Texas so you'd be in Austin regularly which means you have access to Austin Beerwork's Einhorn which clocks in at 3.5% ABV and as a Berliner Weisse will be refreshing, light and slightly sour (although it seems to only be available during the summer and likely only from the taphouse/by filling a growler).