Rather than making blanket statements, here is the actual aquifer characteristics. https://www.michigan.gov/documents/deq/wrd-nestle-attach-5-a... which is of course much more nuanced, and interesting than "it rains a lot".

Okay,fine. Where in that report does it say that the amount of water Nestle is proposing to pump will make a significant impact on the aquifer?

Hint: nowhere.