2020 Health Physics Society Midyear Meeting & ExhibitionMPM-B
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| Chair(s): Bruce Watson |
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MPM-B.1 14:00 Overview Of The U.S. NRC Reactor Decommissioning Program Challenges and Issues. Watson Bruce A*, NRC bruce.watson@nrc.gov
Since 2013, eight (8) power reactors have permanently shutdown and eight (8) more have announced they will be permanently ceasing operations by 2025. There 23 reactors in decommissioning status, new business models requiring license transfers have significantly increased the number of plants in active decommissioning. In order to meet the expanded work in the decommissioning area, NRC is addressing the challenges and emergent issues to remain ahead of changing work scope. This presentation will provide an oversight of the U.S. Nuclear Regulatory Commission’s programmatic activities to adjust to the new power reactor decommissioning and preparations for future plant shutdowns. |
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MPM-B.2 14:15 Lessons Learned On The La Crosse Boiling Water Reactor Decommissioning Project. Giebel Stephen J*, NRC; Doell Marlayna, NRC; Fedors Randall, NRC; Parks Leah, NRC; Quintero Jessie, NRC; Watson Bruce, NRC stephen.giebel@nrc.gov
The lessons learned from the La Crosse Boiling Water Reactor Decommissioning Project, in Genoa, Wisconsin, will be presented. The methods used to facilitate safe decommissioning of the facility, the technical and health physics issues addressed, and the unique and unexpected challenges faced during the project will be discussed. This will include the evaluation of alternative decommissioning approaches from those routinely discussed in NRC decommissioning guidance documents. The NRC staff’s experience and lessons learned at La Crosse should be of value to other reactor decommissioning projects and decommissioning projects in general. |
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MPM-B.3 14:30 Humboldt Bay Power Plant Unit 3 Lessons Learned. Clements John*, NRC; Evans Robert, NRC; Hickman John, NRC; Watson Bruce , NRC john.clements@nrc.gov
The regulator’s view of decommissioning of Humboldt Bay Power Plant Unit 3 will be presented. The technical and health physics issues and unique unexpected challenges will be discussed. The experience and lessons learned should be of value to other decommissioning projects in general. |
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MPM-B.4 14:45 Zion Nuclear Power Station Lessons Learned. Clements John*, NRC; Edwards Rhex, NRC; Lin Bill, NRC; Hickman John , NRC; Watson Bruce, NRC john.clements@nrc.gov
The regulator’s view of decommissioning of Zion Nuclear Power Station will be presented. The technical and health physics issues and unique unexpected challenges will be discussed. The experience and lessons learned should be of value to other decommissioning projects in general. |
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MPM-B.5 15:00 Hematite Decommissioning Lessons Learned: A Regulatory Perspective. Chapman Gregory*, NRC; Smith James, NRC; LaFranzo Michael, NRC; Parks Leah, NRC; Guo Lifeng, NRC; Koenick Stephen, NRC gregory.chapman@nrc.gov
The Hematite, Missouri fuel fabrication facility achieved NRC license termination in late 2018. The decommissioning process was drawn out and complex as the site originally began operations in 1956 and involved contracts for multiple entities before ceasing operations in 2001. The site began decommissioning related operations shortly thereafter although the NRC approval of the decommissioning plan didn’t occur until 2011. Decommissioning involved multiple media including surface and subsurface soils, on-site disposal areas, contaminated structures and equipment, and contaminated groundwater. The decommissioning process encountered multiple difficulties that were addressed including a tiered soil criteria (specified by depth interval below ground surface), reuse and accounting for low-level contaminated soil, and submittal of a piece-meal final status survey report. There were also significant difficulties encountered during the final status survey process including inconsistent scanning of open land areas, poor isolation of survey units and reuse soil stockpiles, backfilling of excavations at risk, and application of statistical analysis when applying “tiered criteria.” This presentation will discuss the difficulties encountered from a regulatory perspective and how these issues were addressed allowing the site to achieve license termination. |
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MPM-B.6 15:15 GE Vallecitos Nuclear Center Radiological Surveys. Huffert Anthony*, NRC; Anderson Stephanie , NRC; Steely Chris, NRC; Parrott Jack, NRC; Watson Bruce, NRC anthony.huffert@nrc.gov
The regulators view of two partial site release surveys of lands and operational surveys at reactor buildings in SAFSTOR will be presented. The technical and health physics issues and unique unexpected challenges will be discussed. The experience and lessons learned should be of value to other decommissioning projects in general. |