Pond Boss Forums Thread Like Summary - Well Size

How big of a well would be good for an 8 acrea pond 6-12 foot avg depth. Would be used to suppliment runoff. Thinking drought times in south east Texas near Houston Area.

I use a well for all 5 ponds in my area. The big ticket item, as esshup said, is knowing your evap rate from the closest station that records such data. In my case, the summer season ave is .38" a day, so in 1 acre.. so 10,182 gal a day, so 425 gal/hr, so 7-8 gal/min just to stay level considering no other loss such as leak, or terrestrial use. Mine pumps 36 gal/min but I allow a slight fluctuation of about 4-6". My well is also about 90' to water but I'm using 1.5hp in a 5" casing.
Highest efficiency is motor running solid, not a pressure system. To keep up with recovery I think you will need 40-60 gal/min to have the ability to play catch up, otherwise it will just be stable when running, you want to recover loss within a few days or you'll be spinning your wheels. Local well drillers can tell you about rates and HP for your depth.

Rod, I can add that info but variables are going to bring out the "It depends" statement here..
In 2021 I pumped 1,499,600 gal for .95 surface acres.
694 hours pumped at 7 cents per kwh, ave 788 per month = 55.16/month + service charge and taxes = 95$/month.
My well has been running since 2004, no well problems yet, but 2900$ to install well ready to run in 2004. Probably at least double that now.
Of the 694 hrs, it's random depending on if I need to do a draw down in a cell to seine.
Right now, for 2021, I averaged about 4-5 full days per month in the 7 months I will normally use water so about 250-280,000 gal per month.

Spoke to a few people in the area. A 4inch pipe with 5 HP will get you about 90 GPM. I think that would be sufficient for what I need. I really appreciate all the help.