Boreholes - Thornley and Deaf Hill

The Coal Authority (client) is an executive non-departmental public body, sponsored by the Department for Energy Security and Net Zero and our mission is to make a better future for people and the environment in mining areas.

Invitation

The Coal Authority invites you to tender for the drilling of a mine water monitoring borehole(s) to assess rising mine water on the surrounding environment at sites at Thornley and Deaf Hill. A review of the mine water block by the Coal Authority in 2020 highlighted the potential for elevated mine water levels at Thornely & Deaf Hill sites. Elevated mine water levels could pose a risk to the drinking water aquifers that overlie the mine workings.

Therefore, the Coal Authority intend to construct a borehole to intersect flooded underground workings. The borehole is to allow monitoring of mine water levels that are thought to be representative of the area.

This tender will be operated through our procurement portal Inbye with details on how to use in additional information.