Question

To ask the Secretary of State for Energy and Climate Change, over what period of time, at what time intervals, at which depths and for which substances he plans to monitor wells abandoned after use for high volume hydraulic fracturing.

The aim of the current regulatory framework is that wells are made safe so that they can be decommissioned with no need for on-going attention. In the UK very few instances are known of problems with decommissioned wells, and none of significant pollution caused by decommissioned wells.

There is, however, a case for further quality assurance, with some period of monitoring post-decommissioning. We are discussing suitable arrangements with regulators and industry. As regards monitoring of the site restoration, this is a matter for the planning authority.

In the 2014 Autumn Statement, the Government announced £31 million funding for a world-leading facility for research, technology and monitoring of the subsurface that will provide openly available data for academia, industry and regulators. The independent research will provide an evidence base for better regulation and to reassure the public that subsurface developments can be safe.