As of 9/25 I did not notice any water on switch back 23. I started at 5:15 am from trail camp so it is possible I missed the water due to it being frozen or too dark to see. Be cautious and fill up at trail camp to be sure you have sufficient water.
Summit was sunny as can be and at 9:45 am only a handful of others on the top. Still chilly though. Trip report will soon follow.