>>1165904House trailer? It really depends on the type of person who lived in the trailer as to how contaminated the place is. Like did they work on cars and dump oil and anti-freeze nearby? With a raised bed you can all manner of perks, though it really depends on your area. Just don't make anything directly over a septic tank or its leach field.
Here's some general unsorted info I've copied from the Homegrowmen threads about raised beds. At the very least, it is a good start for your own research.
