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Metal Moratorium Break Out Session

The Metal Moratorium Breakout Session addressed crucial topics surrounding the release of materials, including the DOE O 458.1, measurement protocols from SLAC, JLAB, and LBNL, as well as alternative disposal methods for contaminatedPCBs. Key discussions emphasized the need for a technical standard to ensure consistency across facilities, the MARSSIM/MARSAME approach, and the establishment of authorized limits for release. The session aimed to develop field measurement methodologies and benchmarks to facilitate the unrestricted release of metals while addressing regulatory requirements.

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Metal Moratorium Break Out Session

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  1. Metal Moratorium Break Out Session • Presentations: • Andy Wallo: DOE, discussion of status of DOE O 458.1, IFB • James Liu: SLAC Measurement Protocols • IFB, field instruments and surface survey , proxy, PK, MDA < ANSI SLS • Keith Welch: Material Release Protocols JLAB • TBD available, also for liquids and solids • Bob Fairchild: LBNL Metals Moratorium • IFB; if destined for disposal, material is held on-site pending transfer to local landfill • Don Gregory: Release of Materials at ORNL • Activation calculation and/or PK, NaI and Pancake survey • Authorized Limits process for samples • Steve Butala: ANL, An Alternative Disposal Method for Activated PCB Capacitors • Used RESRAD and PK to establish authorized limits and release PCB-laden transformers as hazardous, rather than mixed, waste • Discussions: • Develop a DOE Technical Standard to ensure consistent approach across the complex • MARSAME approach with ANSI levels • Site specific technical bases based on AOI and PK

  2. Metal Moratorium Break Out Session • Endorsement of IFB for release of materials • Materials that are IFB are not subject to further regulatory requirements • Need to have technical basis to support unrestricted release of metals: • Process knowledge • Define field measurement methods • Quantify MDAs for isotopes of interest • ∑i(MDAi / SLi)  1 • Consideration of MARSSIM/MARSAME methodology • Decision at Site Office level

  3. Questionnaire on Measurement protocols • Release criteria • IFB, specific activity levels lower than ANSI SLs • Field instruments • NaI, plastic scintillators for volumetric • Field measurement methods • Direct scan, discrete points, detecting "proxy" isotopes • Graded approach for measurement • PK, or 100% surveys • MARSSIM/MARSAME considerations • Additional verification measurements • Several labs have portal gate monitors • Field gamma spectroscopy, analytic sampling when warranted • Record management • Some labs have a release permit/authorization/form • Impact to each site from metal moratorium

  4. ASW 2010 Workshop Expected Outcome • Goal: Consistent measurement protocols to support unrestricted release of concrete and metals • Questionnaire on Measurement protocols • Discussions of issues, show-stoppers and problems, and solutions that are expected or have occurred in the material release process of each lab • Deliverable: Benchmark report

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