I have never heard, read or taken care of a patient that got Acath. as you describe. The cases I've seen swimming in a pond with contacts in, Even then its relatively rare. I suspect you will have a hard time finding a normal eye that got Acath from tap water in their eye.
The answer is no different than when you posted a similar situation Sept 2019. Looking at some of your posts this is the least risk of infection you have posted.