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Latin America Mercury Storage Project Inception Workshop PowerPoint Presentation
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Latin America Mercury Storage Project Inception Workshop

Latin America Mercury Storage Project Inception Workshop

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Latin America Mercury Storage Project Inception Workshop

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  1. Latin America Mercury StorageProject Inception Workshop April 22, 2009 Dennis M. Lynch, Environmental Protection Specialist Defense National Stockpile Center

  2. AGENDA • DNSC Mercury Inventory • DNSC Mercury Sales History • DNSC Mercury Stockpile Stewardship Program • Former Storage Method • Mercury Safety Initiatives – 2002 & 2007 • Reaching a Mercury Decision • Storage Preparations at Hawthorne Army Depot • Storage Costs • Transport to Nevada

  3. Defense National Stockpile CenterMercury Inventory • Commodity grade elemental mercury • 4, 436 metric tons stockpiled • Somerville, New Jersey 2, 617 MT • Warren, Ohio 1, 262 MT • New Haven, Indiana 557 MT • Safely stored for over 50 years • Sales discontinued in 1994 ISO 14001:2004 certificate

  4. Defense National Stockpile CenterMercury Sales History • DNSC sold more than 50,000 flasks of mercury during period 1979 – 1994. • Sales were suspended in 1994 after concerns were expressed by members of Congress and the US Environmental Protection Agency. • Mercury was sold to brokers and metals dealers, and was transferred as payment-in-kind for companies involved in upgrading other stockpile commodities.

  5. DNSC Mercury Stockpile Stewardship Program • The services of Oak Ridge National Laboratory (ORNL) obtained in 2007. • Very respected science and technology laboratory with a great mercury knowledge base. • ORNL’s research produced quality recommendations for the safe storage of elemental mercury for up to 40 years • Technology included ultrasonic testing, radiography, and flask weld inspections. • Developed a protocol for periodic drum inspections • Evaluated the expected integrity of the existing flasks over the extended storage period • Evaluated the expected integrity over over-pack drums over the extended storage period

  6. Former Storage Method

  7. Former Storage Method

  8. Mercury Safety Initiatives • Mercury Over-packing Project - 2002 • Over-packed 128,660 flasks • Cost = $20 per Flask versus $100 for re-flasking • Flasks inspected/cleaned • Epoxy-coated steel drums • Layered protection • Absorbent pads • Plastic liners • Half inch rubber gasket • Air & liquid tight/locking ring

  9. Mercury Safety Initiatives • Mercury Flask Inspection Project (Nevada) - 2007 • Inspected 128,660 flasks • Tightened 100 stoppers • Applied Lock-Tite to stoppers

  10. Reaching a Mercury Decision • 2001 – DNSC initiated an Environmental Impact Statement (EIS) • Evaluated alternatives for long-term management of the mercury • 2002 – Conducted visits to potential storage sites • Selected three for analysis in EIS • 2004 – Issued Final EIS • Determined no effective mercury treatment technology available • Identified preferred alternative – long term storage • 2004 – A Record of Decision reached for the EIS • Announced the decision to consolidate the mercury at one location • Did not identify specific location at that time

  11. Reaching a Mercury Decision • 2006 – Hawthorne Army Depot (Hawthorne, Nev.) was chosen as the consolidation site