Wasn't there some contaminated Chinese sheetrock going around Florida years ago? 

if you don’t do a Phase 1 and contamination is found on your property, you could be liable for cleanup and possibly damages

@Pete Thomas, @Brandon Turner and @Sean Kuhn.I have to agree with Sean on this one.The use of bleach to disinfect mold contaminated areas is an old wives tale and is one that we in the Mold consulting community used to tell folks ... until we learned the truth.Look at the contents of the bleach you buy in the store.

Locally, we had a large commercial area contaminated with PCBs, and was taken by the city.

The government does this with everything they touch really, dip a toe in the water, contaminate the pond and insist the only way to fix it is if they're the only one's allowed in the pond. 

Hauling off and disposing of the contents was an entirely different step and would cost $900+, depending on if soil was found to be contaminated.  

This involves simple things like checking old phone books for business listed at the address, checking with various agencies regarding any known issues to more complicated such as understanding the type of soil under the property and topography to tell which way contamination is likely to flow.If the Phase 1 is 'clean', a Phase 2 is not generally needed.

These incidents like e-coli contamination have been traced back to organic sources, in some cases intentional (using manure for fertilizer) in others unintentional (water sources contaminated by runoff from feedlots).

Once you take title they can come after you regardless of your roll in the contamination.

(See WHY MOLDS KILL below)I will be the first to admit that baled hay and grass contaminated with Stachybotrys killed hundreds of horses and cattle in Europe and parts of Russia, many, many years ago.