Reservoir Trouble

I've been fishing this lake for a long time now and just got into bass fishing a few years ago. I started this year out great. in the spring i caught a couple 4 pounders. as soon as summer hit ive been decreasing in the number and size of bass i catch. lately, ive been very frustrated as i havent caught much at all. this is a shallow lake, like 8 feet at most. i need some advice on where i can locate some fish. 

if you are unable to see the  pic of it, on google maps, find burgess lake please! 

any questions ask me, ill answer for you to help me please

thanks