Fracking comes to China

While we procrastine and debate the advantages and disadvantages of fracking here in the UK, China  charges ahead.
From an horizon scanning and a supplier risk assessment perspective what should we be considering.
Fracking opponents are concerned about gas leaking into the water table to waste water being dumped into rivers.
While the current fracking projects are being managed by majors such as Shell, the danger is that a flood of non-oil major operators eager to participate in the boom will create problems.
Supplier auditing and supplier quality assurance programs need to be alert to these risks, but other than waiting until problems emerge, what is it realistic for food businesses to do?