Dan,
Thanks for posting; I couldn't get it to come up on the website.
Two practice holes are a nice thought, range looks big enough (though too narrow for my slice!), and if the designated fairways are really as wide as shown, would allow for multiple lines of play to some greens.
As for the water hazards, they may well be on a non-landfill area of the grounds. They're all in a line adjacent to the Tri-State. Perhaps that area was untouched.
This would be the third Hills course in the area, behind Stonewall Orchard, a decent layout with some cool holes, and the controversial 18th, which I like, and Bolingbrook, the muni on flood retention land with too much water (naturally) and too many holes I can't remember, which isn't good. Huge range, though, to go with the crazy-large clubhouse.