My D is a freshman there, and yes, there is a lot of partying. More than I’d probably like You will not lack for a social life if you are looking for it. if you join a sorority/fraternity there will be lots of mixers and formals.
Social life is better than I ever could have expected actually. O-week is insane; I went to a party on the first night. (O-Week is orientation week btw, you have no classes and basically just go to parties in collegetown)