i was aware that blk want/need to mine williamson pit but i am not following closely enough to know when. from your comment i take it that blk are wanting to get in there soon?
if williamson pit is pumped dry and dumped (presumably) back on lake way how would this effect the production plans of so4 as they have to get brine for their ponds from other sources anyway? i say 'other sources' as there is no resources announced yet for brine from lake way, so i'm not sure where brine will come from i am just assuming that they have more than just williamson pit.