You have no idea how many people come on this forum every year who have filled their pools with metal contaminated water and what a pain in the patootie it is to deal with the metals issues!!!!! Take some time and read through some of the posts in the metals section of the forum. Just something to think about. When you get to that point, you should probably do a bucket test to see what kind of water you have in that well before deciding to use it. More about that when you get to that point. For now, you have enough to deal with just getting the pool into commission.

Good luck!