Joe,
Congrats on your new pond!
I would definitely follow the advice of esshup and Sunil above.
The good news is that your evaporative losses should slow considerably going into winter.
I would also work on getting some more groundcover vegetation going on your bare soil. When you finally do get a big rain next spring, you do NOT want your clay banks eroding down into your pond - and stealing some of your pond depth as the material settles into your deepest spots.
