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NIOSH Program Area:

Radiation Dose Reconstruction

 

Oak Ridge National Laboratory (ORNL/X-10)
(Site Profile/Docket Number 023)

Location: Oak Ridge, Tennessee

Also Known As: Clinton Laboratories

Site Profile

  1. Introduction
    (Approved August 11, 2004)
    this document in PDF PDF 38 KB (7 pages)


  2. Site Description
    (Revised August 17, 2007)
    this document in PDF PDF 939 KB (79 pages)

    Revision Includes: Initiated to add Attributions and Annotations section. Added references and made editorial changes. Incorporates formal internal review comments.


  3. Occupational Medical Dose
    (Revised October 1, 2007)
    this document in PDF PDF 282 KB (29 pages)

    Revision Includes: Initiated to include Attribution and Annotation section. Incorporates formal internal review comments most of which were editorial and pertained to more than the added Attributions and Annotations section. Table 3-6 had the factor of two removed that was applied to the organ dose values for the ovaries, testes, and uterus. Incorporates formal NIOSH review comments.


  4. Occupational Environmental Dose
    (Approved May 7, 2004)
    this document in PDF PDF 244 KB (41 pages)


  5. Occupational Internal Dose
    (February 8, 2013)
    this document in PDF PDF 1 MB (73 pages)

    Revision Includes: Adds new SEC designation to Section 5.1.3 and incorporates definitions and directions for dose reconstruction for claims that are excluded from the 1943 through July 31, 1955, Special Exposure Cohort. Removed Section 5.4 and Attachment B from the text and Table of Contents. Incorporates formal internal and NIOSH review comments.


  6. Occupational External Dose
    (Revised September 10, 2007)
    this document in PDF PDF 1 MB (92 pages)

    Revision Includes: Initiated to include Attributions and Annotations, Purpose, and Scope sections, and additional references. Made editorial changes. Incorporates formal internal and NIOSH review comments.

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Technical Information Bulletins (TIBs)

  • External Coworker Dosimetry Data for the X-10 Site
    (Revised November 7, 2006)
    this document in PDF PDF 208 KB (12 pages)

    Document Number: ORAUT-OTIB-0021 Rev-01

    About this Document: Establishes the technical basis to provide information to allow Dose Reconstructors (Health Physicists) to assign doses to workers at the X-10 site who have no or limited monitoring data, based on site coworker data.

    Revision Includes: Approved Revision 01 due to release of ORAUT-OTIB-0052, Rev. 00. Per new document requirements, added a table of contents. This revision results in an increase in assigned dose and a PER is required. This revision also documents minor corrections to Table 2 that do not require a PER.

  • Internal Dosimetry Coworker Data for X-10
    (Revised May 5, 2014)
    this document in PDF PDF 649 KB (37 pages)

    Document Number: ORAUT-OTIB-0034 Rev-03

    About this Document: Establishes the technical basis to assign X-10 internal doses based on coworker bioassay data.

    Revision Includes: Removes the inclusion of the Pilot Plant in Section 4.3.5 and Section 5.2, 1st bullet. Updates references. Incorporates formal internal and NIOSH review comments.

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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.

At the current time, no PERs or PEPs specific to Oak Ridge National Laboratory (ORNL/X-10) have been developed. However, we have developed PERs and PEPs that pertain to multiple sites. To view all PERs and PEPs that have been developed, please refer to the Program Evaluation Reports (PERs) and Program Evaluation Plans (PEPs) page.

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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 Oak Ridge National Laboratory (ORNL/X-10):

  • 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)

  • November 9, 2004
    Meeting with Knoxville Building and Construction Trades Council, AFL-CIO

    Final Minutes
    this document in PDF PDF 32 KB (5 pages)

  • November 8, 2004
    Meeting with Oak Ridge National Laboratory Atomic Trades and Labor Council

    Final Minutes
    this document in PDF PDF 39 KB (7 pages)

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Advisory Board Work Group on Oak Ridge National Laboratory (ORNL/X-10)

This Work Group is responsible for reviewing the ORNL Site Profile, the SEC petition from ORNL petitioners, the NIOSH Evaluation Reports responding to the petition, and the SC&A Review of the ORNL Site Profile, considering issues raised by the Board's contractor (SC&A), 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. The Work Group should strive to develop a recommendation to the Board on whether an additional class from ORNL should be added to the SEC.

  • Work Group Members

    Genevieve S. Roessler, Ph.D. (Chair)
    R. William Field, Ph.D., M.S.
    Richard A. Lemen, Ph.D., M.S.P.H.
    Loretta R. Valerio

  • Meeting Information

    • No meetings have been announced at this time.

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Advisory Board and NIOSH Comments and Discussion Papers on Oak Ridge National Laboratory (ORNL/X-10)

The documents listed under this section were prepared by the Advisory Board on Radiation and Worker Health (or their technical support contractor) or NIOSH. Some of the items listed below are working documents and were developed for discussion purposes only. The documents represent preliminary positions taken on technical issues. Draft, preliminary, interim, and white paper documents are not final positions unless specifically marked as such.

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

The most recent documents appear at the top of the list.

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Public Comments on Oak Ridge National Laboratory (ORNL/X-10) Documents

How to Submit Public Comments

Members of the public can provide comments on Oak Ridge National Laboratory (ORNL/X-10) documents. Comments should 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, 1090 Tusculum Avenue, Cincinnati, OH 45226. Please include the Site Profile/Docket Number (023) on all comments.

Comments Received:

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Special Exposure Cohort Petition Information for Oak Ridge National Laboratory (ORNL/X-10)


Open/Active SEC Petitions

Currently there are no open/active SEC petition(s) from Oak Ridge National Laboratory (ORNL/X-10).


Class(es) Added to the SEC

All employees of the Department of Energy, its predecessor agencies, and their contractors and subcontractors who worked in any area at the Oak Ridge National Laboratory (X-10) in Oak Ridge, Tennessee, from June 17, 1943, through July 31, 1955, for a number of work days aggregating at least 250 work days, occurring either solely under this employment, or in combination with work days within the parameters established for one or more other classes of employees in the Special Exposure Cohort

(Note: This class was established by Petition 189)


Classes Not Added to the SEC

Not applicable at this time.


SEC Petitions Not Qualifying for Evaluation

There were six additional petitions received but did not qualify for evaluation. Five petitions did not meet the minimum petition requirements for evaluation and the other petition was withdrawn by the petitioner.


Petitions Qualified for Evaluation

To date, one petition from Oak Ridge National Laboratory (ORNL/X-10) has qualified for evaluation. The left-hand column of the table below shows the various steps in the SEC petitioning process. The right-hand column of the table contains information related to the Oak Ridge National Laboratory (ORNL/X-10) petition.

Petition 189
Date Received

July 18, 2011

Date Qualified for Evaluation

October 11, 2011

Summary of Information in Petition

Job Titles and/or Job Duties: All contractor employees, subcontractor employees, and AEC employees who were monitored or should have been monitored for any of the various radionuclides and fission products present at the X10 Plant

Period of Employment: January 1, 1943 through December 31, 1952

Note: The information above is what qualified for evaluation. During our evaluation of whether dose reconstructions can adequately be completed for the above job titles and period of employment, information may cause NIOSH to change some the dates or job titles/duties. Therefore, as this petition proceeds through the SEC petitioning process and if an SEC class is proposed, the proposed class may not exactly match the above information.

Copy of the Petition Received

Oak Ridge National Laboratory (ORNL or X-10) SEC Petition
this document in PDF PDF 6.5 MB (267 pages)

Federal Register Notice Announcing that a Oak Ridge National Laboratory (ORNL/X-10) SEC Petition has met the Minimum Qualifications for Review and Evaluation

October 19, 2011
this document in PDF PDF 50 KB (1 page)

SEC Petition Evaluation Report

August 17, 2012
this document in PDF PDF 1.7 MB (131 pages)

Evaluation Report Sent to the Advisory Board

August 22, 2012

Petition Discussed by the Advisory Board

The Advisory Board discussed this petition on September 18, 2012, during its regular meeting.

Advisory Board Recommendation on SEC Petition

October 31, 2012
this document in PDF PDF 193 KB (2 pages)

HHS Letters to Congress Regarding the SEC Petition

December 7, 2012
this document in PDF PDF 273 KB (10 pages)

HHS Designation of Additional Members to the SEC

December 7, 2012
this document in PDF PDF 130 KB (5 pages)

Federal Register Notice: Designation/Determination Regarding a Class of Employees for Addition to the Special Exposure Cohort

December 28, 2012
this document in PDF PDF 76 KB (1 page)

Note: A "designation" will be published if there is a recommendation to add a class to the SEC. A "determination" will be published if there is a recommendation not to add a class to the SEC.

Effective Date for the SEC Class

January 6, 2013

Federal Register Notice: Final Effect of Designation of a Class of Employees for Addition to the Special Exposure Cohort

January 17, 2013
this document in PDF PDF 75 KB (1 page)

Letter to DOL Regarding the Addition of a New Class of Employees to the SEC

January 7, 2013
this document in PDF PDF 96 KB (1 page)

Back to Top of SEC Section

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Previous Versions of Oak Ridge National Laboratory (ORNL/X-10) Documents


ORNL/X-10 Site Profile
  • Section 2: Site Description

    • Revised August 30, 2006
      this document in PDF PDF 1.4 MB (80 pages)

      Revision Includes: Constitutes a total rewrite as a result of biennial review. Text was revised to reflect recent construction and other site changes. In addition, the revision added guidance in Section 2.2.55 that maintenance workers should be evaluated using coworker data when appropriate, in response to comments received from the Worker Outreach Meeting with the Oak Ridge Atomic Trades and Labor Council on November 8, 2004. No further changes occurred as a result of internal formal review. Incorporates NIOSH formal review comments. This revision results in no change to the assigned dose.


    • Approved November 14, 2003
      this document in PDF PDF 849 KB (66 pages)


  • Section 3: Occupational Medical Dose section

    • Page Change Revision July 21, 2006
      this document in PDF PDF 230 KB (27 pages)

      Page Change Revision Includes: Approved page change revision initiated to incorporate recent direction from NIOSH to include details for the definition of a DOE facility on page 5 in Section 3.1. Adds Purpose and Scope sections on page 6. Revised to delete the uterus as a surrogate organ to the ovaries on page 15 in Section 3.5 and on page 24 in Table 3-7 in Section 3.4. Makes corrections in Table 3-5 on pages 20 and 21 and in Table 3-6 on pages 22 and 23 in Section 3.6. Incorporates NIOSH formal review comments. No sections were deleted.


    • Revised October 29, 2004
      this document in PDF PDF 224 KB (26 pages)

      Revision Includes: Revised to remove 25% timing error correction from ESE and organ dose values from PA chest exams between 1964 and 1990.


    • Site Profile: Occupational Medical Dose section
      Approved April 20, 2004
      this document in PDF PDF 226 KB (27 pages)

  • Section 5: Occupational Internal Dose

    • Revised October 1, 2007
      this document in PDF PDF 2 MB (74 pages)

      Revision Includes: Initiated to include Attributions and Annotations, Purpose and Scope sections. Revised Section 5.4. Made editorial changes. No further changes occurred as a result of formal internal review. Incorporates formal NIOSH review comments.


    • Page Change Revision May 30, 2006
      this document in PDF PDF 1 MB (70 pages)

      Page Change Revision Includes: Update required language in the Introduction on page 8 in Section 5.1. Adds Section 5.4 on pages 28 and 29 on using air monitoring data to assign best estimates of internal dose for unmonitored ORNL workers during the 1944-1947 period. Makes reference changes on pages 30 and 32 in the Reference Section. Adds Attachment 5B, on pages 67, 68, 69, and 70, which gives the technical justification for this protocol. No changes occurred as a result of internal formal review. Incorporates NIOSH formal review comments. No sections were deleted.


    • Approved June 29, 2004
      this document in PDF PDF 887 KB (64 pages)

  • Section 6: Occupational External Dose

Technical Information Bulletins (TIBs)
  • Technical Information Bulletin: External Coworker Dosimetry Data for the X-10 Site
    (Approved December 29, 2004)
    this document in PDF PDF 76 KB (8 pages)

    Document Number: ORAUT-OTIB-0021 Rev-00

  • Internal Dosimetry Coworker Data for X-10

    • Revised January 21, 2014
      this document in PDF PDF 606 KB (37 pages)

      Document Number: ORAUT-OTIB-0034 Rev-02

      About this Document: Establishes the technical basis to assign X-10 internal doses based on coworker bioassay data.

      Revision Includes: Revision to modify Sections 4.3.5, 5.1, and 5.2 to reference OTIB-0054 rather than provide fission products ratios based on environmental monitoring records. Clarification added that Type S strontium should only be applied if exposure to strontium titanate is assumed. In addition, guidance on when to assign the 95th percentile intake rates was added.

    • Revised April 23, 2013
      this document in PDF PDF 618 KB (39 pages)

      Document Number: ORAUT-OTIB-0034 Rev-01

      About this Document: Establishes the technical basis to assign X-10 internal doses based on coworker bioassay data.

      Revision Includes: Plutonium modeling updated to include best estimate intakes for Type S material. 95th-percentile intakes added for all nuclides. Attachment A data tables expanded to include information on the number of samples and employees used in the statistical analysis.

    • Approved December 13, 2005
      this document in PDF PDF 581 KB (29 pages)

      Document Number: ORAUT-OTIB-0034 Rev-00

      About this Document: Establishes the technical basis to assign X-10 internal doses based on coworker bioassay data.

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Page last updated: May 16, 2014
Page last reviewed: August 25, 2014
Content Source: National Institute for Occupational Safety and Health (NIOSH) Division of Compensation Analysis and Support