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| <p>Facility/Building Number </p> |
| <p>Building 4501 Conversion Project / Building 4501</p> |
| <p>Category</p> |
| <p>2</p> |
| <p>Description of Building Operations</p> |
| <p>The mission of the Conversion Project is to extract uranium in the form of uranium hexafloride (UF6) absorbed on sodium floride (NaF) pellets and transform it into a chemically stable uranium oxide (U3O8) by replacing fluorine with oxygen. The process involved consists of uranium recovery and conversion. </p> |
| <p>However, the facility is currently only authorized to depressurize the NaF traps (which contain the UF6). No conversion is authorized.</p> |
| <p>Summary of Major Hazards</p> |
| <p>Radioactive materials (including fissionable material), radioactive surface contamination and radioactive waste. </p> |
| <p>Summary of Controls</p> |
| <p>Safety-significant structures, systems and components </p> |
| <p>Cell D, </p> |
| <p>Cell D differential pressure instrumentation, </p> |
| <p>Cell D desorb and cryostat heaters isolation circuit, </p> |
| <p>Cell D ventilation HEPA filter bank,</p> |
| <p>Process off-gas HEPA filter,</p> |
| <p>Fire watch established if a loaded NaF trap remains within Building 4501 during off-shift hours.</p> |
| <p>Administrative Control Program</p> |
| <p>Radiation Protection Program</p> |
| <p>Emergency Preparedness Program</p> |
| <p>Fire Protection Program</p> |
| <p>Quality Assurance Program</p> |
| <p>Configuration Management Program</p> |
| <p>Maintenance Program</p> |
| <p>Nuclear Criticality Safety Program</p> |
| <p>Materials Inventory Control</p> |
| <p>Procedures </p> |
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