Is all of the water loss from evaporation or transpiration? i.e. no water loss from leaks in the pond?
Somebody please check my math.
If all water loss is from evaporation, then this is applicable for August (for an average year).
325,851 ÷ 12 = 27,154 x 4 = 108,617 x 8 = 868,936 ÷ 30 = 28,964 ÷ 24 = 1,206 ÷ 60 = 20.1 gpm if run 24/7.
Only way to be sure about the water loss is to stick a yardstick in the BOW and measure vertical drop over a few months and compare it to the evaporation rates for that area.
Not sure what all your numbers are. A 1/4" loss per day for one acre comes out to 6788.5 gallons. Multiply that by 8 acres comes out to 54308 gallons per day. Divide that by 1440 minutes per day comes out to a 37.7 GPM loss.
The well will have to be provide more that 37.7 gpm to maintain the water level. If you lose a 1/2" per day you would need to double it. I don't know if it is ok to run a well 24/7 so you might want to oversize the well and only run it partially throughout the day. Talk to your well driller about that.
