I never recall the library summer reading programs dictating what the kids should read. When I was growing up, they did award prizes based upon number of books read, so the kids reading the longer, more complex books would never win. Now they track time spent reading, and the awards are more individual goal awards (but your kiddo would clearly win everything they offer if she reads three hours a day).

Do you have to go to that particular library? We happen to live close to the county line, and a library in the next county is much closer to us than our own municipal library. There is an easy way in our state (PA) to sign up so that you can use any library in the state - don't know if it works that way where you are.