Mole, chipmunks

Looks like a lot of moisture in that area, is it lower than the rest of the area. Rain pushing dirt up in a pile, maybe

I definitely have chipmunks…I see them all the time. But the hole is filled with dirt, so he couldn’t be coming and going from there.

Don’t know enough about moles. Maybe?? Will have to read up on them.

The area is actually a little higher than the rest of the house.

From the pic it looks like a corner block with a 4" gap between it and the next CMU. Those would most likely be stem walls in a garage, meaning about 4"-8" of the CMU would be sticking above the slab on the inside. You may not see it if it was converted and walls/floor built to cover them. So if that is a gap for some reason, if you could stick your head underneath the hole you would see the underside of the wood sill plate for the wall. So if that is what it looks like in the pic, 2 scenarios I can think of:

- the wood is wet from the sand sitting in it, so you have bugs/termites and an opossum/skunk or something is digging the sand away to get at the food;

- there is a hole in the wood sill plate and a critter is returning every year to have babies up inside your wall.