Good luck TGW1!
August evaporation rate in Texas >>> November evaporation rate in Texas, which should make this pumping much more efficient in helping your pond.
I don't know the particulars of your aquifer or your water well. Do you have a programmable on/off control on your well? (Or by hand if you live at pond location.)
I would be sure to give the pump and the aquifer some "resting" time. When you pull the producing water level all of the way down to the casing slots, it becomes more likely for bad things to happen to either your pump or your well bore.
P.S. I am still performing rain dances here in Kansas for our wheat and all of the trees I planted at the farm. Should I face towards Texas on my next few dances?