Mine water block factsheets

Mine water blocks are a set of flooded collieries which are interconnected and exhibit a continuous gradient of water level across their area.



Mine water blocks can be completely isolated from neighbours, typically separated by very wide unworked pillars of coal or faulted zones.

There may also be hydraulic connections between neighbouring blocks which do not permit sufficient flows for the water levels to equalise.

These mine water block factsheets can be used to consider mining and groundwater constraints when designing appropriate sustainable drainage systems (SuDS).

Details of the contouring methodology, and any data limitations, is provided in the mine water block factsheet and should be considered during site specific assessments.

Published 14 November 2018