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Title: Radioactive Air Emissions Notice of Construction (NOC) for Characterization of the 224-T Facility Process Cells

Technical Report ·
DOI:https://doi.org/10.2172/806780· OSTI ID:806780

This document serves as a notice of construction (NOC) pursuant to the requirements of Washington Administrative Code (WAC) 246-247-060, and as a request for approval to construct pursuant to 40 Code of Federal Regulations (CFR) 61.07, for entering and characterizing the 224-T Facility process cells. The 224-T Facility is a small canyon building with six process cells separated from three levels of operating galleries by a 0.3-meter thick concrete wall. The original mission was to concentrate dilute solutions of plutonium received from the 221-T Plutonium Separation Facility from 1945 until 1956. Various shutdown activities were carried out including flushing the tanks and piping during the 1960s. During the second mission from 1975 to 1985, the operating gallery areas of the structure were converted into a storage area for plutonium-bearing scrap and liquids. The third and final mission converted the operating galleries for use as the 224-T Transuranic Waste Storage and Assay Facility (224-T TRUSAF). All stored waste from the gallery areas was removed in the late 1990s. The process cells were not considered part of the waste storage areas and were isolated from storage activities. The 224-T Facility has been excessed with no anticipated plans for further missions. The purpose of the characterization effort is to determine the condition and contents of the cells, tanks, and vessels. This information is needed to update the Facility's Authorization Basis, maintain appropriate managing practices, and ensure there is no potential threat to the public or environment. The information also will be used to establish operational criteria for the decontamination and decommissioning of this facility. Using the currently approved unit dose conversion factors in HNF-3602, the estimated potential total effective dose equivalent (TEDE) to the maximally exposed individual (MEI) resulting from the unabated, fugitive emissions from characterization of the 224-T process cells is 7.37 E-03 millirem per year.

Research Organization:
DOE-RL (US)
Sponsoring Organization:
USDOE Office of Environmental Management (EM) (US)
DOE Contract Number:
AC06-96RL13200
OSTI ID:
806780
Report Number(s):
DOE/RL-2001-19, Rev.0; TRN: US0301347
Resource Relation:
Other Information: PBD: 14 Mar 2001
Country of Publication:
United States
Language:
English