BTW not all well caps are visible above ground. Ours is completely buried UNDERground as we learned the hard way one winter.
When the pump motor on the well died -- we could NOT find the well cap and it was January -- meaning a snow-covered backyard.
We knew approximately where the well was located-- but we ended up having a lot of the backyard plowed and then DUG UP to find the well.
We live in a large, one level, rambling country house, and in our case, the pipes leading into the house were UNDER the deck that runs along the entire back of our house -- so there was just no real way to discover where that well cap was!
They had metal detectors etc. and tried to pinpoint the location before they started digging for it -- no luck. There was no way to find it except to do a lot of digging.
It turned out to be right in front of the deck outside the MBR. I'm lucky that the well didn't end up being under the deck! The previous owners who'd completely renovated the house and added the MBR and the deck -- could have just as easily ended up making the deck a foot wider and we'd never have found it!
Now it is clearly marked on a map the plumber made for us.
We were just lucky that the people we'd bought from even had a vague idea where the well was or we'd probably have had to excavate the entire property!
