Old PC Equipment

I have recently upgraded some old pc’s in my organization and need a place to dispose of the old equipment. being a medium sized credit union, most places suggested to me by the EPA will not deal with the amount of expired equipment i have.

What does everyone else do in this situation? i could easily take it to the dumpster, but i would like to be environment friendly. most of the pc’s are old 486’s or p133’s…any suggestions?