Open AccessTechnical Basis for the Determination that Current Characterization Data and Processes are Sufficient to Ensure Safe Storage and to Design Waste Disposal
Author(s) -
B.C. Simpson
Publication year - 1999
Language(s) - English
Resource type - Reports
DOI - 10.2172/797679
Subject(s) - milestone , plan (archaeology) , closure (psychology) , process (computing) , sample (material) , engineering , sampling (signal processing) , hazard , risk analysis (engineering) , construction engineering , waste management , computer science , business , chemistry , archaeology , filter (signal processing) , chromatography , organic chemistry , economics , electrical engineering , market economy , history , operating system
This document presents the technical basis for closure of Defense Nuclear Facilities Safety Board (DNFSB) Recommendation 93-5 Implementation Plan milestone 5.6.3.13, ''Core sample all tanks by 2002'' (DOE-RL 1996). The milestone was based on the need for characterization data to ensure safe storage of the waste, to operate the tanks safely, and to plan and implement retrieval and processing of the waste. Sufficient tank characterization data have been obtained to ensure that existing controls are adequate for safe storage of the waste in the 177 waste tanks at the Hanford Site. In addition, a process has been developed, executed, and institutionalized to systemically identify information needs, to integrate and prioritize the needs, and to reliably obtain and analyze the associated samples. This document provides a technical case that the remaining 45 incompletely sampled tanks no longer require sampling to support the intent of the Implementation Plan milestone. Sufficient data have been obtained to close the Unreviewed Safety Questions (USQs), and to ensure that existing hazard controls are adequate and appropriately applied. However, in the future, additional characterization of tanks at the site will be required to support identified information needs. Closure of this milestone allows sampling and analytical data to be obtained in a manner that is consistent with the integrated priority process