I purchased a catering dinner package (which came with tea, coffee, and lemonade) and full open bar - apparently neither of these included water. That was an additional $200.00.
Now I imagine some guys thinking "Ah, I don't want to fuck up ChexMaxs financial situation. I'll just drink water the whole night to save him some money!"
It's shocking how many restaurants try to get around this rule by refusing to designate a tap as being safe for drinking. A place near me got shut down a while ago for trying to pull this shit, because it revoked their license to serve alcohol on premises, and in turn caused a lot of shit with their lease, food safety ratings, etc.