Maybe the following links will help. Look for the word, domestic. Usually the easiest way, though, is to call a water well driller and ask. Water well drillers tend to be more quick and clear about providing the information to you than government websites (usually easier to do than it looks from the government info). ;-)
And the well driller will most likely be the one to do the whole permit process for you. That’s the way it’s done in here anyway.
https://www.idwr.idaho.gov/AboutIDWR/PDFs/Wells.pdf
http://www.idwr.idaho.gov/WaterManagement/WaterRights/WaterRightsEstablish.htm
Look around more. That was from a very quick search. And remember that the driller will answer your questions much easier and quicker besides likely doing the application for you (as is done here). Be sure to let the driller know your acreage and any other pertinent info. And when the driller shows up, other info will need to be conveyed to him (location/distance of septic system from well if any and maybe other info). Hope that helps.
Oh, and ground water rights, at least here, are separate and more lenient than surface water rights.