That sounds extreme, but many businesses weigh profits vs liability. For example, there are old industrial areas pretty much everywhere contaminated by all sort

That sounds extreme, but many businesses weigh profits vs liability. For example, there are old industrial areas pretty much everywhere contaminated by all sorts of toxic waste. There was a furniture refinishing business not far from here, and there's a huge groundwater plume of toxic solvents under me. So no wells for us, here.