It’s time to stop burning volatile propellants at Salt Lake Valley rocket facility, groups say

For decades, potentially explosive waste has been burned in the open in the western part of the Salt Lake Valley, starting with dynamite and now unspent rocket propellant produced by defense contractor Northrop Grumman and its subsidiary ATK Launch Systems.Now, several groups are asking the Utah Department of Environmental Quality to put an end to the practice, citing well-established alternatives for processing such reactive wastes with far less emissions.“Why on earth, in this day and ag