In the Town where I live, there were 3 collieries. Vane Tempest, The Knack and Dawdon. A few years ago, there was a declaration that pumping of minewater would be discontinued, this I believe was overturned. If minewater was allowed to rise unchecked, then the heavy metals and toxins contained therein would eventually get into the water table and, because Dawdon was a coastal pit, into the sea itself. It is a legacy nonetheless, regardless of the pits being closed, that our children and grandchilren and generations after that, will be left to manage. Hopefully we will have a sane society, Socialism, that will make the managemant of environmental problems, based not on monetary considerations but on what is in the interests of mankind!