I'm in IL (Rockford). I called the rockford waste company and they told me I was able to put the mud in the dumpster as long as I dried it out first.
That being said I've been trying to dry my mud in the corner of the parking lot near the dumpster and apparently a neighbor called the EPA saying it smelled and they were over there looking at it this morning. Neighbors house is pretty far away and I can't smell it so hopefully nothing comes of it.