On Mar 4, 5:59*pm, Molly Brown wrote:
I saw what looked like a septic tank cover right next to this very
expensive house built on a slab foundation. The house is on a hill and
the ground falls off right after where this cover is so the only place
the septic tank could possibly be, I would assume, is under the house.
Is this possible?

Very unlikely. If you have more dealings with it, you might
check with the local Health Dept.

And the local sewage haulers could well be able to describe
its system.