This EIS evaluated the alternatives to and the impacts of construction of the Waste Isolation Pilot Plant for the long-term disposal of transuranic (TRU) waste.
The first supplement and associated documents, including the Mitigation Action Plan and Annual Reports, can be found here: https://energy.gov/nepa/eis-0026-s1-supplemental-environmental-impact-statement-waste-isolation-pilot-plant-wipp
The second supplement and associated documents can be found here: https://energy.gov/nepa/eis-0026-s2-waste-isolation-pilot-plant-disposal-phase-carlsbad-new-mexico