I wonder if they will even bother flooding the old workings with a Sulfuric Acid and
Tap Water and Baking Soda solution to chemically foam the existing fire now and flood it with the resulting chemical reaction creating Carbon Dioxide????
The small amounts of sulfuric acid used are neutralized in the resulting chemical reaction
in the making of the fire fighting foam so its not a worry.
It could be the action that finally stops the fire from advancing.