Cool we were not sure, we found them just under the weeds and top surface.

You could take a stick and poke in the roots (very shallow) and the worms were sticking
with their butts hanging out, so there along with castings were tiny balls. Not one was
found more than 1 inch below soil and even then it was more like a soft weedy root area
that these were in.

Now I am incubating them I feel like a chicken farmer