For septic it all depends on the type of soil content and how fast the soil can absorb.

Driveways, storm pond , storm sewer, signage, fences, sidewalks, fire hydrants, fire suppression, external water/sewer/electric/fiber hookup,  internal utility runs, soil compaction, epa, flood zone, flood plain, natural water flow off property, hvac, etc.

(*Note: we waver on the slightly neurotic side when it comes to environmental health - I'm sure most people would be totally fine living in this county, plus our soil tests showed totally normal levels of heavy metal exposure.  

Of course that only works if there is tile underneath, you might get lucky!

So on one deal in Charleston I do all my due diligence which include architect soil and other items. only to have the title come back buggered up and we cant close I am out all that money.

The wall is to the living room, and this is a split level so underneath the living room is the lower living level or mechanical room, I think.

San Antonio is notorious for a little shifting because of the moisture differences in the ground underneath.  

If you look underneath the counter you can look at the miter can locks to see if they are still installed or broken, which would suggest someone strong yanked up on the counter and broke the particleboard cutouts.

Root zones can also not withstand fill (soil) being placed on them. 

A lot depends on how well the house was rehabbed and if preventative maintenance is done ...preventative termite treatments or making sure the soil is graded and gutters are clear and hvac/A/C serviced regularly.