There is an adjacent subterranean area near & adjacent to this, in the area of the Fylde that straddles the estuary of the River Eyre:this formerly contained Rocksalt deposits, (now I believe are empty caverns,) where formerly Brine was pumped, until the 1980's The stuff was pumped-out from the Stalmine Area across to 'ICI Thornton' on the West Bank of the Wyre Estuary at Thornton. Stalmine has seen frequent 'slumpings' of whole farms & fields since this extraction process began in the 19thC.
Empty Caverns . History of Major Collapses. Next to ( & possible overlapping by? Dunno ! a proposed Shale Gas Extraction Area? Alarm Bells SHOULD be ringing...
Under the Fylde is a layer of Sandstone.
This Sandstone is water-bearing rock.
In the 1970's, and since, the NWWA has sank numerous pumps into this mass to extract this 'Groundwater'. They have actually taken as much so as to shut-down quite a few of these, because the Ground Water level has been lowered to that crucial point of depth. "Uh, the Well's run dry".
How do we know that Fracking waste water will not find it's way into these now empty/ but still porous volumes of Sandstone & seep & pollute the Remaining Volumes of (still) Water Bearing Sandstone ?
Betcha bottom dollar Mr Francis Egan hasn't been called upon to answer these two (rather troubling,imo) concerns.
Anyone else know owt?
If I was a resident of the Stalmine area, I'd seriously consider relocation.
Why are you referring to Stalmine when the salt mine "slumpings" were at Preesall ? (Genuine question)