Right, I live in North Texas (DFW area) in a house that was built in
1983.

Today my wife noticed some black spots on a kitchen cabinet shelf.
Upon further investigation, the deepest, most unreachable part of
those shelves were black with mold. Since these shelves are right next
to the dishwasher, I next looked under the dishwasher and my worst
fears were true. There must be a slow or small leak somewhere in the
dishwasher plumbing, since there was a lake of water under there. This
water never seeped onto the floor, since the tiles on the floor seem
to form a small barrier that allows the water to spread under the
cupboards, but there never was enough water to complete fill that
hollow and spread over onto the floor.

So now I have several questions.

Can spraying bleach cure this or am I looking at replacing (at best)
the shelves that seem to be some form of particle board or 9at worst)
the entire set of kitchen cabinets?

How the heck do I get the dishwasher out of there and how do I look
under the dishwasher to find the leaking plumbing? All my tugging on
the dishwasher doesn't seem to move it and I'm afraid I might twist or
break something (nothing feels very strong) if I pull too hard.

For those familiar with the mold issues a few years back here in North
Texas, I guess I'm SOL as far as my insurance picking up a part of the
tab? I'll call my agent tomorrow, but I thought I'd ask here in case
someone has some experience.

Thanks