CX-020795: Pad Installations at TRA-1710 and TRA- 605

In 2012, Idaho National Laboratory (INL) proposed to move the low-level radioactive waste (LLW) stored on the pad at building Test Rector Area (TRA)-617 to the smaller TRA-1710 Radioactive Materials Storage Area at the Advanced Test Reactor (ATR) Complex and no longer use TRA-617 (see environmental checklist [EC] INL-12-032). However, INL still stores LLW at the TRA-617 pad which is currently scheduled for decommissioning and demolition and needs to be replaced. The proposed action paves two locations to meet this need. The project constructs a 75' x 80' asphalt pad surrounded by a 6' chain link fence east of TRA-605 and adds an unfenced 50' x 102' (5,100 ft2) asphalt pad adjacent to TRA-1710. The total area of new pavement is about 11,100 ft2. The pads at 1710 and 605 are both managed as less than Haz Cat 3 Radiological Facilities. None of the pads are associated with any treatment, storage and disposal, or RCRA permits. The replacement areas will store LLW generated from current ATR Complex operations, and the amount of LLW stored at the new and modified locations is expected to be consistent with current operations.