Here where I live (Tacoma WA Area) the city of Tacoma makes a product called "TAGRO" it's top soil that is made using recycled and sanitized "waste" I'll tell you what, it stinks to high hell for the first couple of weeks after laying it down, but everything grows like crazy in it. I'm actually surprised more cities have not done this. What's even better is that you can get it from the city for free and it runs out fast (no pun intended), you can even get a dumptruck load of it delivered for a nominal fee if you choose.