The aquifer under North Pole can be pressurized using purified electro-activated water from behind Moose Creek Dam. Properly designed aquifer pressurization will flush the sulfolane out to the Tanana where an ice-wall weir can trap most of the sulfolane for recovery.
The required equipment to do this will cost less than $180million installed. The cost of the energy to perform the cleanup will be cheap once we pull our heads out of our posterior orofice.