ORAU TEAM Dose Reconstruction Project for NIOSH Oak Ridge Associated Universities I Dade Moeller & Associates I MJW Corporation Page 1 of 152 Document Title: Document Number: ORAUT-TKBS-0057 Revision: 00 PC-1 Site Profile for the West Valley Demonstration Project Effective Date: 08/17/2007 Type of Document TBD Supersedes: Revision 00 Subject Expert(s): Robert E. Burns, Jr. Site Expert(s): N/A Approval: Signature on File Approval Date: 08/14/2007 Jackson R. Ellis, Document Owner Concurrence: Signature on File Concurrence Date: 08/06/2007 John M. Byrne, Task 3 Manager Concurrence: Signature on File Concurrence Date: 08/06/2007 Edward F. Maher, Task 5 Manager Concurrence: Signature on File Concurrence Date: 08/15/2007 Kate Kimpan, Project Director Approval: Brant A. Ulsh Signature on File for Approval Date: 08/17/2007 James W. Neton, Associate Director for Science New Total Rewrite Revision Page Change FOR DOCUMENTS MARKED AS A TOTAL REWRITE, REVISION, OR PAGE CHANGE, REPLACE THE PRIOR REVISION AND DISCARD / DESTROY ALL COPIES OF THE PRIOR REVISION. Document No. ORAUT-TKBS-0057 Revision No. 00 PC-1 Effective Date: 08/17/2007 Page 2 of 152 PUBLICATION RECORD EFFECTIVE REVISION DATE NUMBER DESCRIPTION 06/22/2007 00 New approved Site Profile for the West Valley Demonstration Project. Incorporates formal internal and NIOSH review comments. There is an increase in assigned dose and a PER is required. Training required: As determined by the Task Manager. Initiated by Robert E. Burns, Jr. Approval: Signature on File___________________________ ___05/31/2007 Robert E. Burns, Jr., Document Owner Signature on File___________________________ ___05/31/2007 John M. Byrne, Task 3 Manager Signature on File____________________________ __06/01/2007 Edward F. Maher, Task 5 Manager Signature on File________ ________________ 05/31/2007 Kate Kimpan, Project Director Brant A. Ulsh Signature on File for ______________ _ 06/22/2007 James W. Neton, Associate Director for Science 08/17/2007 00 PC-1 Approved page change revision initiated to assign new document owner and to correct PER statement from Rev 00. No PER was required because Task 5 evaluation determined previously worked cases would not be adversely impacted (no compensability change) by the Rev 00 issuance of this TBD. No changes were needed as a result of formal internal and NIOSH review. Training required: As determined by the Task Manager. Initiated by Jackson R. Ellis. Document No. ORAUT-TKBS-0057 Revision No. 00 Effective Date: 06/22/2007 Page 3 of 152 TABLE OF CONTENTS SECTION TITLE PAGE Acronyms and Abbreviations ................................................................................................................13 1.0 Introduction ...............................................................................................................................17 1.1 Purpose ........................................................................................................................ 18 1.2 Scope ........................................................................................................................... 18 2.0 Site Description .........................................................................................................................18 2.1 Site History ................................................................................................................... 18 2.2 Reprocessing Plant Operations Era, 1965 to 1973 ...................................................... 20 2.2.1 Plant and Process Description .......................................................................20 2.2.2 Radiation Protection Program ........................................................................21 2.2.3 Special Considerations for the Operations Era ..............................................22 2.2.4 Chronic Sources of Personnel Exposures ......................................................23 2.2.4.1 Plant Ventilation Systems ..................................................................23 2.2.4.2 Acid Recovery System ......................................................................24 2.2.4.3 Fuel Receiving and Storage Facility ..................................................25 2.2.5 Miscellaneous Sources of Personnel Exposures ...........................................25 2.2.6 Personnel Exposures Associated with Specific Tasks or Duties .............................................................................................................26 2.2.6.1 Maintenance Workers ........................................................................26 2.2.6.2 Operations .........................................................................................30 2.2.6.3 Ventilation System Filter Changeouts ...............................................31 2.2.6.4 Overall Workforce .............................................................................35 2.3 Reprocessing Plant Residual Radiation Era, 1974 to February 25, 1982 ............................................................................................................................. 38 2.4 Reprocessing Plant DOE Era, February 26, 1982, to present ..................................... 41 2.5 State-Licensed (Commercial) Waste Disposal Area, 1963 to 1983 ............................. 44 2.6 High-Level Waste Disposal Area, 1966 to present ...................................................... 46 2.7 Isotopic Information for Plant Areas ............................................................................. 47 2.7.1 Operations and Residual Radiation Eras, 1966 to February 25, 1982 .........................................................................................................47 2.7.2 DOE Era, February 26, 1982, to present ........................................................49 3.0 Occupational Medical Dose ......................................................................................................50 4.0 Occupational Environmental Dose ............................................................................................51 4.1 Inhalation and submersion Dose .................................................................................. 52 4.1.1 Stack Releases ..............................................................................................52 4.1.1.1 Particulates .......................................................................................52 4.1.1.2 Krypton-85 ........................................................................................54 4.1.1.3 Iodine-131 .........................................................................................54 4.1.1.4 Tritium ...............................................................................................55 4.1.2 Ground Level Releases ..................................................................................56 4.2 Ambient Dose ............................................................................................................... 57 4.3 Summary of Exposures from Environmental Sources ................................................. 58 5.0 Internal Dosimetry .....................................................................................................................59 Document No. ORAUT-TKBS-0057 Revision No. 00 Effective Date: 06/22/2007 Page 4 of 152 5.1 Internal Dose Control Program .................................................................................... 59 5.1.1 Operations and Residual Radiation Eras 1966 – February 25, 1982 .........................................................................................................59 5.1.1.1 Nasal Swabs .....................................................................................60 5.1.1.2 Chest Counter ...................................................................................60 5.1.2 DOE Era February 26, 1982 – present ...........................................................60 5.2 Bioassay program ........................................................................................................ 61 5.2.1 Operations and Residual Radiation Eras 1966 – February 25, 1982 .........................................................................................................61 5.2.1.1 Bioassay Records .............................................................................63 5.2.2 DOE Era February 26, 1982 - present ............................................................63 5.2.2.1 Routine Bioassay ..............................................................................63 5.2.2.2 Special Bioassay ...............................................................................64 5.2.3 Summary ........................................................................................................64 5.3 In Vitro Analyses .......................................................................................................... 65 5.3.1 Operations and Residual Radiation Eras 1966 – February 25, 1982 .........................................................................................................65 5.3.2 DOE Era February 26, 1982 - present ............................................................68 5.4 In Vivo Analyses ........................................................................................................... 69 5.4.1 Operations and Residual Radiation Eras .......................................................69 5.4.1.1 Chest Counter ...................................................................................69