I'll likely need pretreatment and storage!
I just had a 800ft well drilled. They then installed the PVC liner, and the water line to the house.
The driller said they reached water at 730ft, and went down to 800ft. 28G per hr, so very low, and told me to frac. So I fracked.
The fracking company said when they opened the well cap they saw water at 100' level. They then pressurized every 100'. They said they saw a pressure drop at 200', but nowhere else.
The pump has not been installed yet. So still have yet to do another flowrate test and water analysis. But they told me to expect very hard water. I know everything smelled of sulfur. Moreover, Neighbors have told me to expect significant seasonal changes to available water. Most of them have large cisterns and advised me to do so. Though they all have shallower wells (when their houses were built in the 60s, people only went 300-500ft. A few of them simply don't have wells, just a large enough cistern and truck in water monthly. Some of them have water treatment but still buy their drinking water, and use well water only for non-drinking use. This is the Colorado Rockies.
My fracker said if my water is at 100ft, then i have 1000G of storage just in the well. And assuming I improved the flowrate some, I can probably get away without a large cistern. 3000G would be recommended if my well was dry. My well service people also think that I don't need a cistern since I fracked, but we still don't know the post frac flowrate yet.
My driveway (where the well is) and the garage (where all the well equipment will be) both are just dirt right now. Will pour concrete at the end. But since we are excavating and grading still, it would be of almost no additional cost to dig a large hole somewhere in the garage for a cistern if I want. So that's why I'm thinking very seriously about adding one now. I guess now that I think about it, if I loose power my pumps wont work anyway so doesn't matter if I have clean water stored or pre treated water stored. i'll have no water either way! Maybe having a cistern as pre-treatment and storage makes sense. Would this pretreatment tank make my garage and house smell of rotten eggs?
The well company suggested a 300G holding tank after the well, because the well pump won't have enough flowrate for the house. I think then there would be another pressure tank and then softeners etc. I will ask them about installing a cistern (2500G seems like a common size?)
I imagine an under sink reverse osmosis unit for the kitchen might be nice.