The state has been working on the dam. Seismic retro fitting. Water level was lowered for this project. From reading on the Dept of Water Resources page, it doesn't take much of a drop to have a huge effect on this lake. 1584ft is listed as normal water level. At 1582 some ramps close, docks need to be moved, etc. I am guessing the water level isn't going up to normal any time soon.
Yes, the numbers for participants is dropping way down. Sad to see, but not going to get into all that. I think it would have been a fun venue to race at.