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NIOSH Program Area:

Radiation Dose Reconstruction

 

Oak Ridge Gaseous Diffusion Plant (K-25 Site)
(Site Profile/Docket Number 026)

Location: Oak Ridge, Tennessee

Also Known As: East Tennessee Technology Park (ETTP)

Site Profile

  1. Introduction
    (Revised May 4, 2006)
    this document in PDF PDF 94 KB (9 pages)

    Revision Includes: Incorporates introductory language and updates the document for biennial review. No further changes resulted as a result of formal internal review.

  2. Site Description
    (Revised October 4, 2006)
    this document in PDF PDF 128 KB (14 pages)

    Revision Includes: Revised the Introduction to include required language by NIOSH. Added Purpose and Scope sections. Deleted unnecessary Figure 2.1-1 in Section 2.2. Responded to Worker Outreach comments 22 and 24. No further changes occurred as a result of formal internal review. No changes were required due to the K25 Worker Outreach SPFPA and IGUA Worker Outreach meeting held on April 5, 2006 or K25 Worker Outreach PACE Local 5-288 and Pace International Union Worker Outreach meeting held on April 6, 2006. This revision results in no change to the assigned dose.


  3. Occupational Medical Dose
    (Revised March 28, 2013)
    this document in PDF PDF 225 KB (21 pages)

    Revision Includes: Updates doses according to site-specific information and recently revised ORAUT-OTIB-0006. Incorporates resolutions to Sanford Cohen & Associates comments. Also incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.

  4. Occupational Environmental Dose
    (Revised June 22, 2007)
    this document in PDF PDF 581 KB (22 pages)

    Revision Includes: Added Attributions and Annotations section. No further changes occurred as a result of formal internal and NIOSH review. This revision results in no change to the assigned dose and no PER is required.


  5. Occupational Internal Dose
    (Page Change Revision October 4, 2006)
    this document in PDF PDF 275 KB (24 pages)

    Page Change Revision Includes: Page change revision to update required language in the Introduction on page 5. Adds Purpose and Scope sections on pages 6 and 7. Incorporates Worker Outreach comments in on page 12 in Section 5.5 and page 14 in Section 5.6. Adds RU sentence on page 11 in Section 5.4. Adds two references to page 17. Incorporates NIOSH formal review comments. Incorporates internal formal review comments. Corrects dates on page 6 in Section 5.3 for consistency. Provides reference to Internal Dosimetry Coworker Data for K-25. This revision results in no change to the assigned dose.


  6. Occupational External Dose
    (Page Change Revision September 26, 2006)
    this document in PDF PDF 164 KB (24 pages)

    Page Change Revision Includes: Approved page change revision to add required language on pages 7 and 8 in Section 6.1. Changed wording on pages 11 and 15 in Sections 6.5.2.1 and 6.6 respectively. Tables 6-4 and 6-5 on pages 14, 15, and 16 in Sections 6.5.1 and 6.5.2 in Rev 00 have been replaced with Table 2 from ORAUT-OTIB-0026 Rev 00 PC-1. Added references on page 21 in Reference Section. This revision addresses comments from the K25 Worker Outreach SPFPA and IGUA Worker Outreach meeting held on April 5, 2006 or K25 Worker Outreach PACE Local 5-288 and Pace International Union Worker Outreach meeting held on April 6, 2006. All worker outreach comments were considered. In a number of comments, the information was already covered and no change to the document was made. Incorporates internal and NIOSH formal review comments. To address Worker Outreach comment PACE #48, Table 6-4 and 6-5 were replaced with Table 2 from ORAUT-OTIB-0026. No sections were deleted. This revision results in no change to the assigned dose.

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Technical Information Bulletins (TIBs)

  • External Coworker Dosimetry Data for the K-25 Site
    this document in PDF PDF 136 KB (11 pages)

    Document Number: ORAUT-OTIB-0026 Rev-00 PC-2

    About this Document: Establishes the technical basis to allow Dose Reconstructors (Health Physicists) to assign doses to certain workers at the K-25 site who have no or limited monitoring data, based on site coworker data.

    Page Change Revision: November 15, 2006

    Page Change Revision Includes: Approved page change revision due to release of OTIB-0052. Updates required language on page 4 in Section 1.0. Lists ORAUT-OTIB-0052 Rev 00 as a reference on page 6 in Section 5.0. Removes Section 8.0 on page 10, changes title and inserts on page 11. No further changes occurred as a result of formal internal and NIOSH review. No sections were deleted. This revision results in an increase in assigned dose and a PER is required.

  • Internal Dosimetry Coworker Data for K-25
    this document in PDF PDF 246 KB (19 pages)

    Document Number: ORAUT-OTIB-0035 Rev-00 PC-1

    About this Document: Establishes the technical basis for assignment of K-25 internal doses based on coworker bioassay data.

    Page Change Revision: July 21, 2006

    Page Change Revision Includes: Approved page change revision to add updated language to Section 1.0 on pages 5 and 6. Details were added to page 6 in Section 2.0. The date in Section 5.1 and in Table 5.1 on page 8 was changed from 1948 to 1945. Attachment C, Estimate of Intake Rates for 1945-1947 was added to pages 18 and 19. Incorporates internal and NIOSH formal review comments on pages 6, 7, 8, and 9 in Sections 2.0, 4.0, 5.1, and 5.2 respectively. No sections were deleted.

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Reports

  • External Exposure to Technetium-99 at the Gaseous Diffusion Plants
    this document in PDF PDF 112 KB (11 pages)

    Document Number: ORAUT-RPRT-0059 Rev-00

    About this Document: New document initiated for evaluation of external dose from 99Tc at the Oak Ridge Gaseous Diffusion Plant (K-25), Paducah Gaseous Diffusion Plant, and Portsmouth Gaseous Diffusion Plant.

    Effective date: February 7, 2012

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Program Evaluation Reports (PERs) and Program Evaluation Plans (PEPs)

NIOSH is committed to applying the best available science in dose reconstructions. In keeping with this commitment, completed cases with probabilities of causation less than 50% are reviewed as relevant new information becomes available. The results of these reviews are described in a Program Evaluation Report (PER). The PER details the effect, if any, of the new information on the completed dose reconstruction. If it appears that the new information may result in an increase in dose for a completed dose reconstruction with a probability of causation of less than 50%, NIOSH is committed to working with the Department of Labor to reopen and rework the dose reconstruction, as appropriate. A Program Evaluation Plan (PEP) describes plans for evaluating specific program details or issues.

  • PER 11: K-25 TBD and TIB Revisions
    this document in PDF PDF 17 KB (2 pages)

    Document Number: OCAS-PER-0011 Rev-00

    About this Document: New document to determine which previously completed claims require a new dose reconstruction as a result of changes to the K-25 dose reconstruction methods.

    Approved: September 26, 2007

    Summary: There were 432 claims completed by NIOSH between 11/24/2004 and 8/31/2006 that resulted in a POC less than 50%. This does not include claims that may have been submitted in that time frame but subsequently returned to NIOSH for any reason. All these claims will be reviewed by NIOSH to determine if external co-worker data was used. NIOSH will request that DOL return those claims completed before 5/21/2005 determined to have been completed using external co-worker data. NIOSH will also request the return of those claims completed with external co-worker data between 5/21/2005 and 8/31/2006 if they are deemed a Construction Trades worker. DOL will be provided with documentation for the remaining claims indicating the claim did not meet these criteria.


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Worker Outreach Activities

Based on a recommendation from the Advisory Board to provide workers and site experts with opportunities to participate in developing the technical documents used in dose reconstruction, NIOSH established a Worker Outreach Program.

At Worker Outreach Meetings, current and former DOE and AWE employees have opportunities to obtain information about Site Profiles, Technical Basis Documents, and Technical Information Bulletins, and to provide information for consideration and possible use in dose reconstruction. This process is valuable to ensure that the technical documents used in dose reconstruction contain correct and useful information.

Below are the Worker Outreach Activities for the K-25 Site:

  • April 6, 2005
    Meeting with PACE Local 5-288 and International Unions

    Final Minutes
    this document in PDF PDF 45 KB (10 pages)

  • April 5, 2005
    Meeting with Security, Police, and Fire Professionals of America; International Guards Union of America

    Final Minutes
    this document in PDF PDF 58 KB (9 pages)

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Advisory Board Work Group on K-25, Paducah, and Portsmouth (Gaseous Diffusion Plants/GDPs)

This Work Group is responsible for reviewing the Site Profiles for K-25, Paducah, and Portsmouth, and the SC&A reviews of these Site Profiles. It is also responsible for considering issues raised by the Board's contractor (SC&A) concerning the Site Profiles, and for assisting NIOSH and SC&A in the resolution of such issues. The Work Group may recommend to the Board changes in the Site Profile as appropriate.

  • Work Group Members

    Phillip Schofield (Chair)
    Henry A. Anderson, M.D.
    Josie Beach

  • Meeting Information

    • December 7, 2012
      Teleconference Meeting of the Advisory Board's Work Group on Oak Ridge Gaseous Diffusion Plant (K-25), Paducah Gaseous Diffusion Plant, and Portsmouth Gaseous Diffusion Plant

      1:00 p.m. (Eastern time)

      This meeting is open to the public, but without a public comment period. Teleconference call access is available for this meeting and it is limited only by the number of ports available. To access the meeting via the teleconference call access, you must dial 1-866-659-0537. To be automatically connected to the meeting, you will need to enter the following participant code: 9933701.

      Agenda
      this document in PDF PDF 93 KB (1 page)

      Transcript
      this document in PDF PDF 325 KB (94 pages)

      Discussion Papers:

      SC&A: K-25 Site, Oak Ridge Gaseous Diffusion Plant Issues Matrix
      (October 8, 2012)
      this document in PDF PDF 261 KB (12 pages)

      SC&A: Paducah Gaseous Diffusion Plant Issues Matrix
      (October 8, 2012)
      this document in PDF PDF 368 KB (16 pages)

      SC&A: Draft Site Profile Issues matrix for Portsmouth
      (October 8, 2012)
      this document in PDF PDF 290 KB (9 pages)

    • July 6, 2011
      Meeting of the Advisory Board's Work Group on K-25, Paducah, and Portsmouth (Gaseous Diffusion Plants/GDP)

      Cincinnati Airport Marriott
      2395 Progress Dr.
      Hebron, KY 41048
      (859) 586-0166

      9:00 a.m. (Eastern time)

      This meeting is open to the public, but without a public comment period. Teleconference call access is available for this meeting and it is limited only by the number of ports available. To access the meeting via the teleconference call access, you must dial 1-866-659-0537. To be automatically connected to the meeting, you will need to enter the following participant code: 9933701.

      Agenda
      this document in PDF PDF 38 KB (1 page)

      Transcript
      this document in PDF PDF 582 KB (217 pages)

      Please note that as part of the procedures and processes of the Advisory Board's Work Groups, several kinds of pre-decisional documents may be developed. These documents, which can include white papers, matrices, working drafts, etc., are distributed among the Work Group members as research and background tools to facilitate discussion and deliberation. The discussions during the above meeting may cover a pre-decisional document. Because these types of documents are pre-decisional in nature, may contain sensitive information, and may change over time, they are not posted on our Web site. These finalized, reviewed and redacted pre-decisional documents are also available to other interested parties through an appropriate Freedom of Information Act request. Requests for documents not in the public domain should be submitted to the CDC/ATSDR Freedom of Information Act Office at foiarequests@cdc.gov.

    • March 3, 2011--POSTPONED
      Note: This meeting was postponed and will be rescheduled at a later date.

      Meeting of the Advisory Board's Work Group on K-25, Paducah, and Portsmouth (Gaseous Diffusion Plants/GDPs)

      Cincinnati Airport Marriott
      2395 Progress Dr.
      Hebron, KY 41048
      (859) 586-0166

      9:00 a.m. (Eastern time)

      This meeting is open to the public, but without a public comment period. Teleconference call access is available for this meeting and it is limited only by the number of ports available. To access the meeting via the teleconference call access, you must dial 1-866-659-0537. To be automatically connected to the meeting, you will need to enter the following participant code: 9933701.

      An agenda will be provided at a later date.

      Please note that as part of the procedures and processes of the Advisory Board's Work Groups, several kinds of pre-decisional documents may be developed. These documents, which can include white papers, matrices, working drafts, etc., are distributed among the Work Group members as research and background tools to facilitate discussion and deliberation. The discussions during the above meeting may cover a pre-decisional document. Because these types of documents are pre-decisional in nature, may contain sensitive information, and may change over time, they are not posted on our Web site. These finalized, reviewed and redacted pre-decisional documents are also available to other interested parties through an appropriate Freedom of Information Act request. Requests for documents not in the public domain should be submitted to the CDC/ATSDR Freedom of Information Act Office at foiarequests@cdc.gov.

    • December 1, 2010
      Meeting of the Advisory Board's Work Group on K-25, Paducah, and Portsmouth (Gaseous Diffusion Plants/GDP)

      Cincinnati Airport Marriott
      2395 Progress Dr.
      Hebron, KY 41048
      (859) 586-0166

      9:00 a.m. (Eastern time)

      This meeting is open to the public, but without a public comment period. Teleconference call access is available for this meeting and it is limited only by the number of ports available. To access the meeting via the teleconference call access, you must dial 1-866-659-0537. To be automatically connected to the meeting, you will need to enter the following participant code: 9933701.

      Agenda
      this document in PDF PDF 713 KB (272 pages)

      Please note that as part of the procedures and processes of the Advisory Board's Work Groups, several kinds of pre-decisional documents may be developed. These documents, which can include white papers, matrices, working drafts, etc., are distributed among the Work Group members as research and background tools to facilitate discussion and deliberation. The discussions during the above meeting may cover a pre-decisional document. Because these types of documents are pre-decisional in nature, may contain sensitive information, and may change over time, they are not posted on our Web site. These finalized, reviewed and redacted pre-decisional documents are also available to other interested parties through an appropriate Freedom of Information Act request. Requests for documents not in the public domain should be submitted to the CDC/ATSDR Freedom of Information Act Office at foiarequests@cdc.gov.

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Advisory Board and NIOSH Comments and Discussion Papers on K-25

The Oak Ridge Gaseous Diffusion Plant (K-25) discussion papers listed below are working documents prepared by NIOSH or its contractor for use in discussions with the Advisory Board on Radiation and Worker Health or its Working Groups or Subcommittees. Draft, preliminary, interim, and white paper documents are not final NIOSH or Advisory Board (or their technical support and review contractors) positions unless specifically marked as such. These documents represent preliminary positions taken on technical issues prepared by NIOSH or its contractor.

The discussion papers have been reviewed to identify and redact any information that is protected by the Privacy Act 5 USC 552a and have been cleared for distribution.

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Public Comments on K-25 Documents

How to Submit Comments
Comments on K-25 Site documents can be submitted to the NIOSH Docket Officer electronically by e-mail at NIOCINDOCKET@cdc.gov or printed comments can be mailed to NIOSH Docket Office, Robert A. Taft Laboratories, MS-C34, 4676 Columbia Parkway, Cincinnati, OH 45226. Please include the Site Profile/Docket Number (026) on all comments.

Comments Received
  • No comments have been received at this time.

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Special Exposure Cohort Petition Information for K-25 Site

  • SEC Petitions Not Qualifying for Evaluation

    One petition was received, but was later closed because the class was already established by The Act. Two additional petitions were received, but did not meet requirements to qualify for evaluation.


  • Class Added to the SEC

    • Gaseous Diffusion Plants--employees who worked at least 250 days before February 1, 1992, at a gaseous diffusion plant in Paducah, Kentucky; Portsmouth, Ohio; or Oak Ridge, Tennessee and who were or could have been monitored in those jobs using dosimetry badges

      Note: The SEC was established by The Act. The K-25 Site was one of the classes that Congress included when The Act was signed.

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Previous Versions of K-25 Site Documents

  • Site Profile: Introduction
    Approved January 6, 2004
    this document in PDF PDF 31 KB (5 pages)


  • Site Profile: Site Description
    Approved January 12, 2004
    this document in PDF PDF 110 KB (14 pages)


  • Site Profile: Occupational Medical Dose

    • Page Change Revision November 7, 2006
      this document in PDF PDF 116 KB (13 pages)

      Page Change Revision Includes: Approved page change revision to update required language on pages 4 and 5 in Section 3.1. Updates acronyms and abbreviations on page 3. Adds a Purpose Section and a Scope Section on page 5. No sections were deleted. No further changes occurred as a result of formal internal review. No changes required to this document due to Worker Outreach comments. This revision results in no change to the assigned dose and no PER is required.

    • Approved June 29, 2004
      this document in PDF PDF 91 KB (12 pages)


  • Site Profile: Occupational Environmental Dose

    • Page Change Revision September 26, 2006
      this document in PDF PDF 425 KB (21 pages)

      Page Change Revision Includes: Approved page change revision to include new standard language on page 6 in Section 4.1. Adds reference to page 13 in Reference Section. No sections were deleted. No changes occurred as a result of internal formal review.

      OCAS comment was addressed. No changes were required due to the K25 Worker Outreach SPFPA and IGUA Worker Outreach meeting held on April 5, 2006 or K25 Worker Outreach PACE Local 5-288 and Pace International Union Worker Outreach meeting held on April 6, 2006. However, the document previously addressed the following comments:

      From K25 Worker Outreach SPFPA and IGUA Worker Outreach meetings April 5, 2006-Response to Comment #30: Atmospheric releases are addressed in Section 4.2.1.

      From K25 Worker Outreach PACE Local 5-288 and Pace International Union Worker Outreach comments April 6, 2006-Response to Comment #4: Fires are discussed in the reference "DOE (U.S. Department of Energy), 2000b, Independent Investigation of the East Tennessee Technology Park." Response to Comment #33: Atmospheric releases of Uranium and other radioactive materials are addressed in Section 4.2.1. Response to Comment #45: Because of the known limitations of air monitoring environmental intakes are calculated based on releases of materials; this is discussed in Section 4.2. Response to Comment #46: As documented in Section 4.3.1, neutron exposures were not reported for environmental results until 2003.

      This revision results in no change to the assigned dose.


    • Approved December 29, 2004
      this document in PDF PDF 400 KB (19 pages)


  • Site Profile: Occupational Internal Dose

    • Revised January 6, 2006
      this document in PDF PDF 252 KB (24 pages)

      Revision Includes: Incorporates recent direction from NIOSH to include DOL review comments in the Introduction. Incorporates information on bioassay codes provided by Task 5 in sections 5.3.2 and 5.4.2; adds Attachments A, B, C. Deletes reference to Y-12 bioassay program from section 5.3.


    • Approved December 21, 2004
      this document in PDF PDF 165 KB (20 pages)


  • Site Profile: Occupational External Dose
    (Approved November 24, 2004)
    this document in PDF PDF 204 KB (24 pages)



  • Technical Information Bulletin: External Coworker Dosimetry Data for the K-25 Site

    • Revised July 29, 2005
      this document in PDF PDF 122 KB (10 pages)

      Document Number: ORAUT-OTIB-0026 Rev-00 PC-1

      Revision Includes: Page change incorporates recent direction from NIOSH regarding the calculation and use of coworker doses to pages 7, 8, 9, and 10. Text was modified in Sections 6.0 and 7.0. No sections were deleted.

    • Approved May 31, 2005
      this document in PDF PDF 125 KB (10 pages)

      Document Number: ORAUT-OTIB-0026 Rev-00


  • Technical Information Bulletin: Internal Dosimetry Coworker Data for K-25
    Approved August 9, 2005
    this document in PDF PDF 224 KB (15 pages)

    Document Number: ORAUT-OTIB-0035 Rev-00

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Page last updated: April 30, 2013
Page last reviewed: August 10, 2013
Content Source: National Institute for Occupational Safety and Health (NIOSH) Division of Compensation Analysis and Support