I'm thinking the Governing Body in their end of the world short sightedness and rush to get out of Dodge and move to the boonies bought the property without a in depth soil testing and that some time after they bought the property and while developing it they found the contamination which was then reported to the Environmental Agency in 2012.
They probably knew the potential for it being polluted property but chose to keep a blind eye to this potential and hoped that no contamination would be found and for this reason they did not do a thorough soil testing.
This seems to be a pattern with them buying property around the world. They are looking for quick fixes and cheap real estate which they can latter sell when the lawsuits start mounting up in one country after another. They are in a rush to get money and make profits$$$$ and so they are acting very carelessly with the Lord's money so to speak.
I expect from this point on carelessness to even increase as they grasp a financial straws to save them from going down for the 3rd time.