AIR POLLUTION: EPA proposes tougher standards for waste storage, treatment facilities Amanda Peterka, E&E reporter Published: Wednesday, July 2, 2014 U.S. EPA is proposing to tighten air standards for facilities that store and treat wastes, used oil and used solvents. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.