1. 8/18/2010Robert Fairchild LBNL Metals Moratorium Robert Fairchild Lawrence Berkeley National Lab Radiation Protection Group ASW-2010 Metals Moratorium Breakout Session

2. 8/18/2010Robert Fairchild Moratorium vs. Suspension Moratorium (known rad-added) Suspension (possible rad-added)

3. 8/18/2010Robert Fairchild July 13, 2000 Suspension Letter No detectable contamination using appropriate commercially available monitoring equipment and approved procedures. Maintain records on releases, such that records are easily accessible to members of the public. Must seek local public participation before resuming unrestricted release into recycling.

4. 8/18/2010Robert Fairchild July 2000 Suspension FAQ from Office of Environmental Policy and Guidance, Air, Water and Air Division. Defines recycle as melting and production of new product from metal Does not apply to: o Release of material (including public sale) if reused for intended purpose (machine tool example in Q/A #s 4, 6) o Non-metals o Recycle and reuse within DOE complex or transfer to individuals licensed to use such material, but not with intent to recycle (Q/A #16, 17) o Property released prior to July 13, 2000 o Metals in light bulbs, batteries, etc. (Q/A #14) o Rebar in concrete (Q/A #19) May dispose of metals at an offsite disposal facility if the metals meet release criteria (Q/A #11)

5. 8/18/2010Robert Fairchild January 19, 2001 Suspension Letter Update Clearly define areas that can potentially contaminate materials and equipment Clearly define release criteria, including measurement and survey protocols Ensure released materials meet DOE release criteria Better inform and involve the public Include release program information in the annual site environmental report

6. 8/18/2010Robert Fairchild LBNL Implementation Implementation Agreement between BSO and LBNL (August 9, 2000) Agreement emphasized potential for contamination, not dose rate in area (e.g. Contamination Area vs. Radiation Area) o All Controlled Areas at accelerators where metals may have become activated o Contamination Areas o Metals stored in other areas that may have been removed from accelerator Controlled Areas and not previously released (e.g. stored in Radioactive Materials Area). Use existing radiological clearance procedure (implements DOE O5400.5), modification required to address Suspension requirements. Did not account for information in the July 2000 FAQ

7. 8/18/2010Robert Fairchild Implementation Agreement between BSO and LBNL revised (April 22, 2005) Accounted for information in FAQ Better defined accelerator Controlled Areas where activation is possible and required specific boundaries to be identified during any demolition project. Excluded rebar and other embedded metals in concrete as long as they meet release criteria. Reviewed and updated in 2008

8. 8/18/2010Robert Fairchild EH&S Procedure 708, Survey of Potentially Contaminated Materials and Equipment for Unrestricted Release Survey with 1x1 NaI or equivalent for potential activation (assumes self shielding for alpha/beta If thin item (e.g. target foil), also survey with alpha/beta probe (e.g. Ludlums 43-89) Swipes/samples as necessary/appropriate

9. 8/18/2010Robert Fairchild Release Criteria No distinguishable count rate increase above background with NaI. This is left up to the RCT to decide if they believe they discern an increase above background. Below surface contamination limits (5400.5)

10. 8/18/2010Robert Fairchild Control of Released Material Tagged with Radiological Release (green) tag. Metals suspension materials have label stating that the materials have been surveyed and found to be free of radioactivity, but are subject to the suspension. If destined for disposal, material is held in a closed-top and locked roll-off container pending transfer to local landfill.

11. 8/18/2010Robert Fairchild Disposition Sent to excess equipment to be reused within DOE or sold (rare) Buried at local sanitary landfill o Landfill contract prohibits reclaiming of materials for recycling o Landfill provides certificate of burial for each load of metal

12. 8/18/2010Robert Fairchild QUESTIONS?