Matthew Reed wrote:
That was really how my OP started - I was looking for advice on cleaning out
my well and thereby getting some additional depth by just cleaning the junk
out of the bottom. I'm not sure how to do this, or if it's even feasible
given that the wall casing is a 2" metal pipe.

I might suggest posting on the misc.rural usenet group. They tend to
have a lot of "well-meaning" people there.