Many are now aware of the danger presented by the restarting of the EXXON Torrance Refinery. This is happening so the sale to PBF Energy, Inc. can be completed. Exxon needs the cash and to dump the enormous potential for liability the refinery now presents.
What appears to still be hidden is the fact the formula for modified HF being used is proprietary and owned by Exxon. It has never been independently tested.
If a major rupture occurs Exxon and PBF can hide behind the formula's proprietary status. This tactic has always worked for the industry.
From the Wiki on HF:
"Hydrogen fluoride gas is an acute poison that may immediately and permanently damage lungs and the corneas of the eyes. Aqueous hydrofluoric acid is a contact-poison with the potential for deep, initially painless burns and ensuing tissue death. By interfering with body calcium metabolism, the concentrated acid may also cause systemic toxicity and eventual cardiac arrest and fatality, after contact with as little as 160 cm2 (25 square inches) of skin."