Nope. Been in there dozens of times. Those are outliers! Vis usually about 2-3ft on a great day.
Been there hundreds of times. Never seen 2-3 foot vis, and you know that I know what that is from the railroad bridge!
Yes, there were a few months a couple of years ago when we cancelled our photography workshop for an algae bloom, but that was the outlier. Usually very reasonable vis for training, we had 50 divers for our Intro to Northeast Diving program this season.
The video I posted was also shot in the east end, which does tend to be better vis. But it's typically around 10-20 in most of the quarry.
Here's something from earlier this year, when our team was training for our wreck photogrammetry project, and kicking up a lot of silt on the trolley.