We summited yesterday (8/6) and had to negotiate several water crossings. I never had to put my foot in more than a quarter inch of water.
There is always the possibility of slipping and falling into the water (as mentioned), so be prepared for that. Be careful and you should be fine.
Note that when we were coming down the water through the switchbacks was flowing well. Some filled up with water there. I avoided it by walking on rocks.
Also, you cross no snow/ice unless you are wanting to (go off trail).