engineered checklist alone is going to cost to find out if they would allow ( depends on soil) Do you know how many feet down is the water? 

Make sure washer has drain pan underneath in case washer fails.6.

If it has been more than two years and I believe it has you might have to start from scratch with all of the required engineering, soils analysis, foundations designs etc, . etc.

@Matt G. a plumbing issue underneath and possibly termites but the termites have now been ruled out.

As others have mentioned, Texas is notorious for foundation issues due to soil conditions and high property taxes which can be mitigated by knowing what you're doing and being close by.

However, I can take you to my daughters gym and show you 15 toddlers laughing their diapers off running underneath it while their parents lift it up and let if slowly fall on their heads.

I'm really underneath about 5k but my cap rate is -2%.

So I don't know if there is like a foot of concrete above the ground or if there is a concrete base and something else underneath.

Maybe put soil on everything so the broken cement surface and the dirt area is covered with the new soil.

I'm eliminating a carpeted area that was soiled by a pet.