Frank wrote:

On 3/4/2011 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?

Tanks aren't that big and could be a few feet beneath cover. Actual
tank cover is below cover you see. Doubt tank is beneath house as a
very old tank could collapse. Drain fields could be any where. I've
got neighbors that pump uphill to their fields.

Pump chambers are also not uncommon with city sewers as well if the
house is located lower than the sewer main.