Something many people don’t realize about the Great Lakes is that the water is NOT there free for anyone to take.
The Great Lakes Compact strictly controls how the water is distributed. Very simply put, except in very rare instances, GL water is only approved for use within the GL Basin/watershed.
I knew about this many, many years ago when Greater Chicago had a massive population/development explosion to the south and Illinois & Indiana communities in and near the Kankakee River watershed started eying Lake Michigan for supplemental water supplies.
That proposal got smacked down very quickly.
I just did a quick search and found that the Compact was updated and renewed in 2008.

edited to add “not” in the first sentence.