East Lake hatches of Callibaetis are doing well. Fish are in shallow at times for the hatch, or cruise banks looking for damsels and terrestrials (Ants, Beetles and Hoppers) but a lot of the best fish are feeding in deeper areas on Balanced leeches and Chironomids. August is a prime month to hang an all red Chironomid Blood Worm under an indicator at 15 to 20 feet. 
Olive and Chrome Chironomids are your best pupal colors now, but have black and red at the ready and from a #12 to a #18. Especially the Red in the #18 as it is a staple East Lake size for late summer.