[Baz]

Most wells do not "go bad" so doesn't make any sense to destroy it. At some point someone may want to try using it again. It certainly doesn't pose any threat to the planet, as long as it remains capped.

I had forgotten about the height codes, so that explains that part of it. IIRC the code here is 24" above grade and must have a back flow prevention valve installed.

I also forgot that wells are usually marked on surveys....so there's another potential resource for identification purposes.