Contact-handled Transuranic Mixed Waste

“Contact-handled transuranic mixed waste” means transuranic mixed waste with a surface dose rate not greater than 200 millirem per hour. [Pub. L. 102-579 (1992)]

Remote-handled Transuranic Mixed Waste

“Remote-handled transuranic mixed waste” means transuranic mixed waste with a surface dose rate of 200 millirem per hour or greater. For WIPP, the surface dose rate shall not exceed 1,000 rems per hour. [Pub. L. 102-579 (1992)]


“Facility” or “permitted facility” means the Waste Isolation Pilot Plant (WIPP) owned by the DOE and located approximately twenty six (26) miles east of Carlsbad, New Mexico, EPA I.D. Number NM4890139088. The WIPP facility comprises the entire complex within the WIPP Site Boundary as specified in the WIPP Land Withdrawal Act of 1992, Pub. L. 102-579 (1992), including all contiguous land, and structures, other appurtenances, and improvements on the Permittees' land, used for management, storage, or disposal of TRU mixed waste.


“Permittees” means the United States Department of Energy (DOE), an agency of the Federal government, and the owner and co-operator of the WIPP facility; and Washington TRU Solutions LLC, Management and Operating Contractor (MOC), the co-operator of the WIPP facility. References to actions taken by “the Permittees” indicate actions that may be taken by either co-Permittee.


“Secretary” means the Secretary of the New Mexico Environment Department (NMED), or designee.

TRU Waste

“TRU Waste” means waste containing more than 100 nanocuries of alpha-emitting transuranic isotopes per gram of waste, with half-lives greater than 20 years, except for (A) high-level radioactive waste; (B) waste that the DOE Secretary has determined, with the concurrence of the EPA Administrator, does not need the degree of isolation required by the disposal regulations; or (C) waste that the Nuclear Regulatory Commission has approved for disposal on a case-by-case basis in accordance with part 61 of title 10, Code of Federal Regulations. [Pub. L. 102-579 (1992)]

TRU Mixed Waste

“TRU Mixed Waste” means TRU waste that is also a hazardous waste as defined by the HWA and NMAC (incorporating 40 CFR §261.3).

Contact Handled Packages

“Contact Handled Packages” means TRUPACT-II, HalfPACT, and TRUPACT-III shipping containers and their contents.

Remote-Handled Package

“Remote-Handled Package” means RH-TRU 72-B shipping container and its contents.

Containment Pallet

“Containment pallet” means a device capable of holding a minimum of one 55-gallon drum, or 85-gallon drum, or 100-gallon drum or a standard waste box, or a ten-drum overpack and that has internal containment for up to ten percent of the volume of the containers on the containment pallet.

Waste Characterization

“Waste characterization” or “characterization” means the activities performed by or on behalf of the waste generator/storage sites (sites) to obtain information used by the Permittees to satisfy the general waste analysis requirements of NMAC (incorporating 40 CFR §264.13(a)). Characterization occurs before waste containers have been certified for disposal at WIPP.

Waste Confirmation

“Waste confirmation” or “confirmation” means the activities performed by the Permittees or the co-Permittee DOE, pursuant to Permit Attachment C7 (TRU Waste Confirmation), to satisfy the requirements specified in Section 310 of Pub. L. 108-447. Confirmation occurs after waste containers have been certified for disposal at WIPP.

Substantial Barrier

“Substantial barrier” means salt or other non-combustible material installed between the waste face and the bulkhead to protect the waste from events such as ground movement or vehicle impacts. The substantial barrier incorporates the chain link and brattice cloth room closure specified in Permit Attachment A2.


“Bulkhead” means a steel structure, with flexible flashing, that is used to block ventilation as specified in Permit Attachment A2 (Geologic Repository).

Explosion-Isolation Wall

“Explosion-isolation wall” means the 12-foot wall intended as an explosion isolation device that is part of the approved panel-closure system specified in Permit Attachment G1 (Detailed Design Report for an Operation Phase Panel Closure System).

Filled Panel

“Filled panel” means an Underground Hazardous Waste Disposal Unit specified in Permit Part 4 that will no longer receive waste for emplacement.

Internal Container

“Internal container” means a container inside the outermost container examined during radiography or visual examination (VE). Drum liners, liner bags, plastic bags used for contamination control, capillary-type labware, and debris not designed to hold liquid at the time of original waste packaging are not internal containers.

Observable Liquid

“Observable liquid” means liquid that is observable using radiography or VE as specified in Permit Attachment C (Waste Analysis Plan).