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NIOSH Program Area:

Radiation Dose Reconstruction

 

Hanford
(Site Profile/Docket Number 016)

Location: Richland, Washington

Also Known As: Hanford Engineer Works (HEW)

Site Profile

  1. Introduction
    (Revised March 2, 2010)
    this document in PDF PDF 92 KB (11 pages)

    Revision Includes: Incorporates changes due to revisions of the related Hanford technical basis documents. Updated references. Incorporates formal internal and NIOSH review comments.

  2. Site Description
    (Revised February 22, 2010)
    this document in PDF PDF 664 KB (92 pages)

    Page Change Revision Includes: NIOSH data collection and analysis information for several new radionuclides and the areas and facilities and periods during which they were used. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.

  3. Occupational Medical Dose
    (Revised January 7, 2010)
    this document in PDF PDF 426 KB (36 pages)

    Revision Includes: Revised to include the Oblique and Lordotic chest views; change in poor collimation assumption for early years x-ray dose data. Includes Attributions and Annotations section. Incorporates formal internal and NIOSH review comments. Changes some dose conversion factors for pre-1970 to conform to the project wide assumption of poor collimation for that time period. Adds organ dose for the Bucky PA chest performed at Hanford in the 1970s and 1980s. Adds skin dose for all projections and time periods. Constitutes a total rewrite of the document.

  4. Occupational Environmental Dose
    (Revised January 7, 2010)
    this document in PDF PDF 1 MB (58 pages)

    Revision Includes: Revision initiated to incorporate SEC information in the Acronyms and Abbreviations Section and on page 10 in new Section 4.1.3. Updated NIOSH required language. Adds changes to Table 4-3. Updated references on pages 20, 21, 23, 33, and 34 in Section 4.2 and 4.4 and in the Reference Section. Adds information on page 26 in Section 4.3.1 regarding Table 4-8 details. Adds details to page 30 in Section 4.3.3. Updates document owner information on page 33 in Section 4.4. Incorporates formal internal and NIOSH review comments. No sections were deleted.

  5. Occupational Internal Dose
    (Revised November 5, 2012)
    this document in PDF PDF 2 MB (163 pages)

    Revision Includes: Includes NIOSH-proposed SEC-00201 regarding U-233, highly enriched uranium (HEU), neptunium, and thorium, from July 1, 1972, through December 31, 1983. SEC statements added or changes made to Sections 5.1.2, 5.2.5, 5.2.9, 5.2.10, 5.2.11, 5.3.4, 5.6.1, 5.6.2, and Table 5-31. Unmonitored worker intakes for thorium, neptunium, and U-233 deleted from Table 5-31 and associated text. Corrected Table 5-17 to Th-228, and Attachment A number to 1.2 E-11 (the minus sign was missing). Reference for TBD-6000 updated. Incorporates formal internal and NIOSH review comments.

  6. Occupational External Dose
    (Revised January 7, 2010)
    this document in PDF PDF 4 MB (265 pages)

    Revision Includes: Revision initiated to incorporate neutron and photon measurement data collection and analysis of Hanford once-through cooling production reactors, 200 Area Plutonium Facilities, 300 Area and Miscellaneous Research Facilities with potential neutron exposure, and coworker analyses previously contained in ORAUT-OTIB-0030. Incorporated formal internal and NIOSH review comments. Constitutes a total rewrite of the document.

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Technical Information Bulletins (TIBs)

At the current time, there are no active TIBs for Hanford. To view all previous TIBs that have been developed for this site, please refer to the Previous Versions of Hanford Documents section of this page.

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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 5: Misinterpreted Application of the External Dose Factor for Hanford Dose Reconstructions
    this document in PDF PDF 85 KB (6 pages)

    Document Number: OCAS-PER-0005 Rev-00

    About this Document: Describes the evaluation of the programmatic effect of the misinterpreted application of the bias factor for Hanford Dose Reconstructions.

    Approved: June 9, 2006

    Summary: An error in interpretation and application of the bias factor information in the Hanford External Dose Reconstruction Technical Basis Document (1) resulted in an underestimate of the external dose for certain Hanford claims. Claims that were potentially affected by this error were identified and those that had not already been submitted to the Department of Labor were returned to the ORAU team for rework. The cases that had been submitted to DOL were reevaluated by removing the bias factor, thus developing a revised external dose. The probability of causation for each of the affected claims was recalculated. This evaluation found that although this error appeared upon discovery to be rather significant, there was no impact on compensation decisions made by the Department of Labor.


  • PER 29: Hanford TBD Revisions
    this document in PDF PDF 30 KB (4 pages)

    Document Number: OCAS-PER-0029 Rev-00

    About this Document: Document to determine which previously completed claims require evaluation for the effect of revising the Hanford TBD.

    Approved: December 18, 2007

    Summary: There were 1190 Hanford or PNNL claims completed prior to June 22, 2007, with a probability of Causation below 50%. The dose reconstruction methodology of each will be reviewed to determine if a new dose reconstruction is necessary to determine if the revisions increase the dose estimate. NIOSH will review these dose reconstructions to determine if they meet any of the criteria listed in the PER. NIOSH will provide DOL with the list of 1190 claims as well as a determination on each claim as to whether a new dose estimate is required. Documentation for each claim not requiring a new dose reconstruction will provide the basis for that determination.


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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 Hanford:

  • June 19, 2007 (6:00 p.m.)
    Meeting with Hanford Petitioners and Union representatives

    Final Minutes
    this document in PDF PDF 155 KB (21 pages)


  • June 19, 2007 (9:00 a.m.)
    Meeting with former Hanford workers to discuss Special Exposure Cohort Petition Number 50, 57, and 58

    Final Minutes
    this document in PDF PDF 243 KB (34 pages)


  • March 28, 2007 (5:00 p.m.)
    Meeting with former Hanford workers from the DuPont era, 1942 to 1946, in Richland, Washington

    Final Minutes
    this document in PDF PDF 75 KB (18 pages)


  • March 28, 2007 (12:30 p.m.)
    Meeting with former Hanford workers from the DuPont era, 1942 to 1946, in Richland, Washington

    Final Minutes
    this document in PDF PDF 79 KB (15 pages)


  • April 22, 2004
    Meeting with Paper, Allied-Industrial, Chemical and Energy Workers (PACE) Local #8-0369;
    Fluor Hanford-Hanford Guards Union Local #21

    Final Minutes
    this document in PDF PDF 49 KB (8 pages)


  • January 14, 2004
    Meeting with Hanford Atomic Metal Trades Council, AFL-CIO (HAMTC)

    Final Minutes
    this document in PDF PDF 79 KB (5 pages)

  • January 13, 2004
    Meeting with Central Washington Building and Construction Trades Council, AFL-CIO

    Final Minutes
    this document in PDF PDF 80 KB (5 pages)

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Advisory Board Work Group on Hanford

This Work Group is responsible for reviewing the Hanford site profile (as revised), the SEC petition(s) from Hanford petitioners, the NIOSH Evaluation Report of the petition, and the SC&A Review of the Hanford Site Profile. It is also responsible for considering issues raised by the Board's contractor (SC&A) concerning the site profile and the petition Evaluation Report, 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 a class should be added to the SEC.

  • Work Group Members
    James Malcolm Melius, M.D., Dr. P.H. (Chair)
    Bradley P. Clawson
    John W. Poston, Sr.
    Phillip Schofield
    Paul L. Ziemer, Ph.D.

  • Meeting Information

    • November 30, 2012
      Teleconference Meeting of the Advisory Board's Work Group on Hanford

      11:00 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 92 KB (1 page)

      Transcript
      this document in PDF PDF 292 KB (72 pages)

      Presentation:

      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

    • September 12, 2012
      Teleconference Meeting of the Advisory Board's Work Group on Hanford

      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 104 KB (1 page)

      Transcript
      this document in PDF PDF 312 KB (65 pages)

      Presentations:

      Discussion Papers:

      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.

    • August 17, 2011
      Teleconference Meeting of the Advisory Board's Work Group on Hanford

      3:00 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 14 KB (1 page)

      Transcript
      this document in PDF PDF 822 KB (46 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 6, 2008
      Teleconference meeting of the Advisory Board's Work Group on Hanford

      1:00 p.m. (Eastern time)

      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.

      The call will focus on the issue of SEC eligibility criteria.

      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 26, 2007
      Meeting of the Advisory Board's Work Group on Hanford Site Profile
      Cincinnati Airport Marriott
      2395 Progress Dr.
      Hebron, KY 41048
      (859) 586-0166

      10:00 a.m. to 2:30 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 1-866-643-6504. To be automatically connected to the meeting, you will need to enter the following participant code: 9448550.

      Agenda: This meeting has been scheduled to discuss the Hanford Site Profile.

      Transcript
      this document in PDF PDF 206 KB (144 pages)

    • December 1, 2006
      Work Group Meeting of the Advisory Board on Radiation and Worker Health
      Teleconference

      1:30 p.m. (Eastern Time)

      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 1-866-643-6504. To be automatically connected to the meeting, you will need to enter the following participant code: 9448550.

      Agenda: To discuss the Hanford site profile review.

      Transcript
      this document in PDF PDF 198 KB (105 pages)

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Advisory Board and NIOSH Comments and Discussion Papers on Hanford

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 Hanford Documents

How to Submit Comments

Members of the public can provide comments on Hanford 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 (016) on all comments.

Comments Received

No public comments have been received at this time.

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Special Exposure Cohort Petition Information for Hanford


Open/Active SEC Petitions

To date, there are no open/active SEC petitions from Hanford.

Classes Added to the SEC

  • Employees of the Department of Energy (DOE), its predecessor agencies, or DOE contractors or subcontractors who were monitored or should have been monitored for internal radiological exposures while working at the Hanford Engineer Works in: the 300 Area fuel fabrication and research facilities from October 1, 1943 through August 31, 1946; the 200 Area plutonium separation facilities from November 1, 1944 through August 31, 1946; or the 100 B, D, and F reactor areas from September 1, 1944 through August 31, 1946; for a number of work days aggregating at least 250 work days 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 from Petition 57)


  • Employees of the Department of Energy (DOE), its predecessor agencies, and DOE contractors or subcontractors who worked from September 1, 1946 through December 31, 1961 in the 300 area, or January 1, 1949 through December 31, 1968 in the 200 areas (East and West) at the Hanford Nuclear Reservation in Richland, Washington, 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 from Petition 57)


  • All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors who worked at the Hanford site in Richland, Washington, from October 1, 1943 through June 30, 1972, 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 included in the Special Exposure Cohort.

    (Note: This class was established from Petition 152)


  • All employees of the Department of Energy, its predecessor agencies, and their contractors and subcontractors who worked at the Hanford Engineer Works in Richland, Washington, from July 1, 1972, through December 31, 1983, 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 included in the Special Exposure Cohort.

    (Note: This class was established from Petition 201)


Classes Not Added to the SEC

  • All personnel who were internally monitored (urine or fecal), who worked at the Plutonium Finishing Plant in the 200 Area at the Hanford site, from January 1, 1987, through December 31, 1989

    (Note: This class was established from Petition 155)


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 was withdrawn by the petitioner.


Petitions Qualified for Evaluation

To date, six petitions from Hanford have qualified for evaluation. Below you will find a table for each petition. The left-hand column of the tables below shows the various steps in the SEC petitioning process. The right-hand column of the tables contain information related to the specific Hanford petition.

Below is a list of the petitions that qualified for evaluation. Select a petition on the list to view to the table for that particular petition.

  • Petition 50 (January 1943 through September 1, 1946, and December 1944 through September 1, 1946 timeframe qualified for evaluation)--This petition was merged with Petition 57. Therefore, the specific table for Petition 50 contains limited information. Please refer to Petition 57 for detailed information on this petition.

  • Petition 57 (January 2, 1942 through December 31, 1990 timeframe qualified for evaluation)

  • Petition 78 (April 25, 1967 through February 1, 1971 timeframe qualified for evaluation)--This petition was merged with Petition 57. Therefore, the specific table for Petition 78 contains limited information. Please refer to Petition 57 for detailed information on this petition.

  • Petition 152 (October 1, 1943 through June 30, 1972 timeframe qualified for evaluation)

  • Petition 155 (January 1, 1987 through December 31, 1989 timeframe qualified for evaluation)

  • Petition 201 (July 1, 1972 to December 31, 1983 timeframe qualified for evaluation)

Petition 50
Date Received

January 12, 2006

Date Qualified for Evaluation

November 9, 2006

Summary of Information in Petition

Job Titles and/or Job Duties: All former Dupont Production workers in the 100 area and 300 area from January 1943 through September 1, 1946, and all 200 area production workers and all Guards and construction workers from December 1944 through September 1, 1946.

Period of Employment: see above

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

Part 1
Pages 1-64
this document in PDF PDF 1.3 MB (64 pages)

Pages 65-127
this document in PDF PDF 2.6 MB (63 pages)

Part 2
Pages 1-74
this document in PDF PDF 3.3 MB (74 pages)

Pages 75-149
this document in PDF PDF 4.3 MB (75 pages)

Pages 150-222
this document in PDF PDF 3.0 MB (73 pages)

Part 3
this document in PDF PDF 938 KB (25 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

January 19, 2007
this document in PDF PDF 81 KB (1 page)

SEC Petition Evaluation Report

Please see Petition 57.

Evaluation Report Sent to the Advisory Board

Please see Petition 57.

Petition Discussed by the Advisory Board

Please see Petition 57.

Advisory Board Recommendation on SEC Petition

Please see Petition 57.

HHS Letters to Congress Regarding the SEC Petition

Please see Petition 57.

HHS Designation of Additional Members to the SEC

Please see Petition 57.

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

Please see Petition 57.

Effective Date for the SEC Class

Please see Petition 57.

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

Please see Petition 57.

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

Please see Petition 57.


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Petition 57
Note: Two classes of employees were added to the SEC from Petition 57.
Date Received

March 13, 2006

Date Qualified for Evaluation

November 21, 2006

Summary of Information in Petition

Job Titles and/or Job Duties: All employees

Period of Employment: January 2, 1942 through December 31, 1990

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

Part 1
this document in PDF PDF 1.8 MB (45 pages)

Part 2
this document in PDF PDF 2.8 MB (86 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

December 8, 2006
this document in PDF PDF 78 KB (1 page)

SEC Petition Evaluation Report

Revised March 31, 2008
this document in PDF PDF 557 KB (110 pages)

Evaluation Report Sent to the Advisory Board

May 29, 2007

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board during its regular meeting on July 19, 2007; October 4, 2007; and April 8, 2008.

Note: the agenda and transcripts from this meeting are available on the Advisory Board and Public Meetings page.

Advisory Board Recommendation on SEC Petition

August 9, 2007
(October 1, 1943 through August 31, 1946)
this document in PDF PDF 81 KB (2 pages)

April 30, 2008
(September 1, 1946 through December 31, 1968)
this document in PDF PDF 477 KB (2 pages)

HHS Letters to Congress Regarding the SEC Petition

September 12, 2007
(October 1, 1943 through August 31, 1946)
this document in PDF PDF 297 KB (6 pages)

May 30, 2008
(September 1, 1946 through December 31, 1968)
this document in PDF PDF 81 KB (7 pages)

HHS Designation of Additional Members to the SEC

September 28, 2007
October 1, 1943 through August 31, 1946)
this document in PDF PDF 77 KB (1 page)

July 1, 2008
September 1, 1946 through December 31, 1968)
this document in PDF PDF 82 KB (1 page)

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

September 28, 2007
(October 1, 1943 through August 31, 1946)
this document in PDF PDF 77 KB (1 page)

July 1, 2008
September 1, 1946 through December 31, 1968
this document in PDF PDF 82 KB (1 page)

Effective Date for the SEC Class

October 12, 2007
(October 1, 1943 through August 31, 1946)

June 29, 2008
(September 1, 1946 through December 31, 1968)

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

October 29, 2007
(October 1, 1943 through August 31, 1946)
this document in PDF PDF 101 KB (2 pages)

July 18, 2008
(September 1, 1946 through December 31, 1968)
this document in PDF PDF 44 KB (2 pages)

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

October 19, 2007
(October 1, 1943 through August 31, 1946

this document in PDF PDF 20 KB (1 page)

July 2, 2008
(September 1, 1946 through December 31, 1968)
this document in PDF PDF 29 KB (2 pages)


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Petition 78
Date Received

November 7, 2006

Date Qualified for Evaluation

February 27, 2007

Summary of Information in Petition

Job Titles and/or Job Duties: All roving maintenance carpenters and apprentice carpenters who worked in the 100, 200, 300, and 400 Areas

Period of Employment: April 25, 1967 through February 1, 1971

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

Hanford SEC Petition for April 25, 1967 through February 1, 1971
this document in PDF PDF 2.5 MB (67 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

March 1, 2007
(April 25, 1967 through February 1, 1971)
this document in PDF PDF 48 KB (1 page)

SEC Petition Evaluation Report

Please see Petition 57.

Evaluation Report Sent to the Advisory Board

Please see Petition 57.

Petition Discussed by the Advisory Board

Please see Petition 57.

Advisory Board Recommendation on SEC Petition

Please see Petition 57.

HHS Letters to Congress Regarding the SEC Petition

Please see Petition 57.

HHS Designation of Additional Members to the SEC

Please see Petition 57.

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

Please see Petition 57.

Effective Date for the SEC Class

Please see Petition 57.

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

Please see Petition 57.

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

Please see Petition 57.


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Petition 152
Date Received

September 8, 2009

Date Qualified for Evaluation

September 8, 2009

Summary of Information in Petition

Job Titles and/or Job Duties: All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors

Period of Employment: October 1, 1943 through June 30, 1972

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

Hanford SEC Petition for October 1, 1943 through June 30, 1972
this document in PDF PDF 150 KB (2 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

October 1, 2009
this document in PDF PDF 76 KB (2 pages)

SEC Petition Evaluation Report

September 28, 2009
this document in PDF PDF 352 KB (41 pages)

Evaluation Report Sent to the Advisory Board

October 9, 2009

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board on October 20, 2009, during its regular meeting.

Note: the agenda and transcripts from this meeting are available on the Advisory Board and Public Meetings page.

Advisory Board Recommendation on SEC Petition

November 16, 2009
this document in PDF PDF 31 KB (2 pages)

HHS Letters to Congress Regarding the SEC Petition

December 10, 2009
this document in PDF PDF 68 KB (10 pages)

HHS Designation of Additional Members to the SEC

December 10, 2009
this document in PDF PDF 38 KB (5 pages)

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

December 30, 2009
this document in PDF PDF 51 KB (1 page)

Effective Date for the SEC Class

January 9, 2010

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

January 21, 2010
this document in PDF PDF 66 KB (1 page)

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

January 12, 2010)
this document in PDF PDF 61 KB (1 page)


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Petition 155 (January 1, 1987 through December 31, 1989)
Date Received

November 10, 2009

Date Qualified for Evaluation

April 29, 2010

Summary of Information in Petition

Location: Richland, Washington

Job Titles and/or Job Duties: All personnel who were internally monitored (urine or fecal), who worked at the Plutonium Finishing Plant in the 200 Area

Period of Employment: January 1, 1987 through December 31, 1989

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

Hanford SEC Petition (January 1, 1987 through December 31, 1989)
this document in PDF PDF 1.2 MB KB (36 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

May 6, 2010
this document in PDF PDF 67 KB (1 page)

SEC Petition Evaluation Report

Approved April 29, 2011
this document in PDF PDF 259 KB (58 pages)

Evaluation Report Sent to the Advisory Board

May 16, 2011

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board on May 25, 2011, August 24, 2011, September 18, 2012, and December 11, 2012, during its regular meetings.

Note: the agenda and transcripts from these meetings are available on the Advisory Board and Public Meetings page.

Advisory Board Recommendation on SEC Petition

January 31, 2013
this document in PDF PDF 32 KB (1 page)

HHS Letters to Congress Regarding the SEC Petition

March 6, 2013
this document in PDF PDF 66 KB (9 pages)

HHS Determination Concerning a Petition for Employees from Hanford

March 6, 2013
this document in PDF PDF 39 KB (4 pages)

Federal Register Notice: Determination Concerning a Petition to Add a Class of Employees to the Special Exposure Cohort

March 26, 2013
this document in PDF PDF 73 KB (1 page)

Effective Date for the SEC Class

Not available at this time.
(Note: this only applies if the class is added to the SEC.)

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

Not available at this time.
(Note: this only applies if the class is added to the SEC.)

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

Not available at this time.
(Note: this only applies if the class is added to the SEC.)

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Petition 201 (July 1, 1972 to December 31, 1983)
Date Received

May 3, 2012

Date Qualified for Evaluation

May 8, 2012

Summary of Information in Petition

Job Titles and/or Job Duties: All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors

Period of Employment: July 1, 1972 to December 31, 1983

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

Hanford Petition
this document in PDF PDF 268 KB (3 pages)

Federal Register Notice Announcing that a Hanford SEC Petition has met the Minimum Qualifications for Review and Evaluation

May 18, 2012
this document in PDF PDF 80 KB (1 page)

SEC Petition Evaluation Report

June 1, 2012
this document in PDF PDF 600 KB (48 pages)

Evaluation Report Sent to the Advisory Board

June 4, 2012

Petition Discussed by the Advisory Board

The petition was discussed by the Advisory Board on June 19, 2012, during its regular meeting.

Note: the agenda from this meeting is available on the Advisory Board and Public Meetings page.

Advisory Board Recommendation on SEC Petition

July 27, 2012
this document in PDF PDF 299 KB (2 pages)

HHS Letters to Congress Regarding the SEC Petition

August 23, 2012
this document in PDF PDF 678 KB (10 pages)

HHS Designation of Additional Members to the SEC

August 23, 2012
this document in PDF PDF 139 KB (5 pages)

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

September 20, 2012
this document in PDF PDF 74 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

September 22, 2012

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

October 3, 2012
this document in PDF PDF 98 KB (2 pages)

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

September 28, 2012
this document in PDF PDF 40 KB (1 page)

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Previous Versions of Hanford Documents

  • Site Profile: Introduction section

    • Revised May 23, 2007
      this document in PDF PDF 82 KB (10 pages)

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

    • Revised August 30, 2006
      this document in PDF PDF 113 KB (10 pages)

      Revision Includes: Revised as a result of biennial review. Constitutes a total rewrite of the document. Incorporates formal internal and NIOSH review comments. This revision results in no change to the assigned dose.

    • Revised January 9, 2004
      this document in PDF PDF 44 KB (7 pages)

      Revision Includes: Revised to add page headers, correct editorials, acronyms and to change references to TBD to Site Profile where applicable.

    • Approved November 7, 2003
      this document in PDF PDF 40 KB (7 pages)

  • Site Profile: Site Description section

    • Page Change Revision May 17, 2007
      this document in PDF PDF 477 KB (46 pages)

      Page Change Revision Includes: Added two paragraphs required by the Office of General Counsel on page 7. Made additional changes resulting from the comments received at the NIOSH/PACE discussion in Richland, WA on April 22, 2004. These include the sentence on page 11 regarding the 137Cs and 90Sr recovery operations, the date change from 1979 to 1978 (page 12), the addition of one paragraph on page 14, section 2.3.5, discussing the ventilation problems in Building 303-L, and the two deletions on page 32.

    • Page Change Revision December 29, 2004
      this document in PDF PDF 399 KB (39 pages)

      Page Change Revision Includes: Added two paragraphs required by the Office of General Counsel on page 7. Made additional changes resulting from the comments received at the NIOSH/PACE discussion in Richland, WA on April 22, 2004. These include the sentence on page 11 regarding the 137Cs and 90Sr recovery operations, the date change from 1979 to 1978 (page 12), the addition of one paragraph on page 14, section 2.3.5, discussing the ventilation problems in Building 303-L, and the two deletions on page 32.

    • Approved October 2, 2003
      this document in PDF PDF 357 KB (38 pages)

  • Site Profile: Occupational Medical Dose section

  • Site Profile: Occupational Environmental Dose section

    • Revised June 5, 2007
      this document in PDF PDF 1.4 MB (56 pages)

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

    • Approved October 15, 2003
      this document in PDF PDF 413 KB (33 pages)

      Attachment A
      this document in PDF PDF 3 MB (96 pages)

  • Site Profile: Occupational Internal Dose section

    • Occupational Internal Dose
      this document in PDF PDF 2 MB (163 pages)
      (Revised October 20, 2010)

      Revision Includes: Revision to make corrections to GSDs and 95th percentile intake rates in Attachment C (coworker study) for all radionuclides (plutonium, uranium, strontium-90, promethium-137, zinc-65, sodium-24, cesium-137). Incorporates formal internal and NIOSH review comments.

    • Revised January 7, 2010
      this document in PDF PDF 2 MB (164 pages)

      Revision Includes: Revision to add new SEC statement in Section 5.1. All references to OTIB-039 were removed. OTIB-039 was added as Attachment C. All mention of assigning intakes for unmonitored workers for Np, Po-210, or thorium were removed. Attachment A was split with REX codes becoming a new Attachment B and tolerance limits remaining as Attachment A. Table 5-1 on bioassay codes were moved to Attachment B. Text on records missing in REX was added to Section 5.2. In Section 5.2.1, text was added on change in bioassay frequency circa 1960. Text on history of Am exposure and start of bioassay was added in Section 5.2.2. Text on history of Cm exposure was added to Section 5.2.3. Text on history of tritium exposure and discussion of metal tritides and OBT was added to Section 5.2.4. Added new information on sensitivity in 1950. In Table 5-10, a new footnote b on reporting level in 1964 was added. In Table 5-14, there was a change in MDA for the period 9/1964 through 1973. More explanatory text was added to the footnotes. Additional history of 233U exposure and bioassay method in 1970 was added to Section 5.2.5. Updated impurity concentrations in the 233U and added new Tables 5-16 and 5-17 on impurities. In Section 5.2.8, Information was added in regard to 147Pm urinalysis development in 1962. Added MDA information on urinalysis 1963-64. In vivo counting for 147Pm was mentioned. In Section 5.2.9, historical material was removed. New information was referenced in the Hanford Site Description. Added information on 1948 Po-210 urinalysis procedure and statement about monitoring in 1954. Text was added to Section 5.2.10 on purity of Np. Added information about urinalysis method in 1960. Text was added to Section 5.2.11 on thorium urinalysis method circa 1955. Text was removed in Section 5.3.4 on historical exposure to thorium. New information was referenced in the Hanford Site Description. Buildings were added to Table 5-26. Mentioned early thorium urinalysis procedure circa 1955 and first whole body counting 1962-63. New intake guidance for alpha-emitters in tank farm mixtures was added to Section 5.4.1. In Section 5.5.2, removed instructions to DRs concerning uncertainty. In Section 5.6, added reference to OTIB-54 for fission product intakes. Corrected operating dates for the Fast Flux Test Facility. Mentioned that routine thyroid counts extended into the 1950s. In Table 5-30, added new intake values for tritium for 1955 and discussed reason in the text. Added statements on the tritium bioassay analysis as discussed in Attachment C. Added guidance for unmonitored worker intakes of 233U in Z Plant. Added new guidance for many of the specific buildings and added some new buildings to the list. Updated Table 5-31 to reflect new guidance in the text. Updated Attributions and References sections to reflect changes in the text. Incorporates formal internal and NIOSH review comments. Provides additional guidance for assigning intakes for exotic radionuclides to unmonitored workers in Section 5.6. Constitutes a total rewrite of the document.

    • Revised June 22, 2007
      this document in PDF PDF 821 KB (89 pages)

      Revision Includes: Initiated to revise or add information in Section 5. Section 5.1: updated tolerance air concentrations and assigned intakes for 1944-48; added summary of Ikenberry report on thyroid monitoring 1945-46; added fission product intakes for 1947. Section 5.2: added statement on types of urinalysis kits normally used. Section 5.2.1: added information about pure 238Pu work in 325 Bldg.; added statement to use 5-yr-old Pu mixture for years prior to 1951. Section 5.2.2: added statement about 241Am recovery operation in PFP in 1960-70s. Section 5.2.3: added stated about 244Cm recovery in 325 Bldg. Section 5.2.5: added statement about work with 37% enriched U; changed period for 4 ėg/L reporting level to 1974; increased Pu-239 contaminant level in RU to 0.8 nCi/gU; added information about U-233 production. Section 5.2.8: added information about promethium use. Section 5.2.10: added information about neptunium urinalyses. Section 5.2.11: added information about thorium urinalyses and 35S urinalyses. Revised or added information to Section 5 tables. Introduction: added new boilerplate. all table numbers were reformatted. Section 5.1: removed reliance on air samples and referenced co-worker study (OTIB-0039), Section 5.2: added statement on types of urinalysis kits normally used. Sec. 5.2.1: added info. about pure Pu-238 work in 325 Bldg.; added statement to use fresh Pu for 1944-49 and 5-yr-old Pu mixture for 1950-54. Sec. 5.2.2: added statement about Am-241 recovery operation in PFP in 1960-70s. Sec. 5.2.3: added statement about Cm-244 recovery in 325 Bldg. Sec. 5.2.4: added information about tritium in the 400 Area drinking water. Sec. 5.2.5: Table 5-13: raised Pu-alpha contamination level to 0.8 nCi/gU; added statement about work with 37% enriched U; changed period for 4 ėg/L reporting level to 1974; added information about U-233 production. Sec. 5.2.8: added some info. about promethium use. Sec. 5.2.9: removed discussion about background levels of Po-210. Sec. 5.2.10: added some info. about neptunium urinalyses. Sec. 5.2.11: added info. about thorium urinalyses and S-35 urinalyses. Sec. 5.3.1: revised Table 5.3.1-1 (5-22) to clarify MDAs, decision levels and reporting levels. Sec. 5.3.4: totally new section on thorium exposure and thorium monitoring. Sec. 5.4: replaced the old mixture rules with use of Table 5.7-2 (5-25); Sec. 5.6.2: (chronic intakes) deleted entire section. Sec. 5.7 (now 5.6): added information about tritium in the 400 area drinking water; added reference to OTIB-0039 and revised Table 5-25 accordingly. Moved old Appendix D into this document as Attachment A; took out all the tables on chronic intakes. Constitutes a total rewrite of the document. Incorporates NIOSH formal review comments. Many grammatical and format changes throughout. Table 5-12: removed the uranium specific activity data for DU and natural U; added statement to use IMBA defaults to footnote a. Section 5.3.4: added table showing buildings with thorium exposure; added text and table explaining adjustment factors for whole body measurements of Th-232 and associated intakes; added thoron doses for workers processing thorium in 3722 and 3732 bldgs. Section 5.6: clarified possible absorption types for Pu and U in the specific-facilities section; added thoron to Table 5-30; revised tritium intakes for unmonitored workers due a coworker analysis of tritium doses. New Tables 5-27 and 5-28 providing Th-232 intakes based on whole body counting at long times after end of chronic intakes. Section 5.3.4: revised thoron WLMs, removed reference to thoron dose with a reference to TIB-011, clarified use of OTIB-0039 for unmonitored thorium intakes. Section 5.6: removed references to 6- mrem tritium dose and stayed with intake values; clarified how the tritium intake values were determined for the 1955-60, 1970-71, and 1973-83 time periods; corrected a math error resulting in slightly increased intakes for 1984, 85, and 86. Includes Attributions and Annotations and additional references. Incorporates formal internal review comments for Attributions and Annotations section.

      Attachment D: Occupational Internal Dose for Monitored Workers
      this document in PDF PDF 193 KB (23 pages)

    • Revised November 24, 2004
      this document in PDF PDF 532 KB (57 pages)

      Revision Includes: Major revision to discuss historical limits and tolerance dose; discussion of separations plant (1944 -46) and 231-Z (1945-46); clarified intakes in the 300 area uranium fabrication and the laundry facilities; expanded information on 241Am and 241Am MDAs for 1946 and 1967-6/1969; Added section 5.2.4.1 on assignment of tritium doses; added table 5.2.5-5 (MDAs for non-routine uranium excreta analyses); revised table 5.2.6-1 (routine fission product urinalysis detection levels); added discussion of 214Bi and 208Tl in whole body counting (section 5.3.1); expanded section 5.7 on unmonitored workers to provide additional discussion, tables and instructions to dose reconstructors for specific areas on the site; included listing of references; plus corrected miscellaneous typos, and table number changes.

    • Approved October 15, 2003
      this document in PDF PDF 433 KB (46 pages)

  • Site Profile: Occupational External Dose section

    • Revised June 5, 2007
      this document in PDF PDF 1.5 MB (102 pages)

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

    • Revised November 21, 2006
      this document in PDF PDF 906 KB (91 pages)

      Revision Includes: Revision incorporate SC&A comments and responses to claimant concerns. Constitutes a total rewrite of document. Incorporates internal and NIOSH formal review comments. This revision results in no change to the assigned dose and no PER is required.

    • Page Change Revision October 5, 2006
      this document in PDF PDF 805 KB (80 pages)

      Page Change Revision Includes: Adds updated required language on page 8 in Section 6.1. Adds Purpose Section (6.1.1) and Scope Section (6.1.2) to page 9. Makes reference to ORAUT-OTIB-0017 on page 10 in Section 6.2 for guidance to be used. Adds two references to pages 56 and 58 in Reference Section. No changes occurred as a result formal internal review. Incorporates NIOSH formal review comments. This revision results in no change to the assigned dose.


    • Revised January 9, 2004
      this document in PDF PDF 779 KB (78 pages)

      Revision Includes: Revised to include the sections on neutrons and responses to DOL comments.

    • Approved October 20, 2003
      this document in PDF PDF 559 KB (68 pages)

  • Special Exposure Cohort: SEC Petition Evaluation Report for Hanford (Petition 57)
  • Technical Information Bulletin: External Coworker Dosimetry Data for the Hanford Site--CANCELED

    Note: This document has been canceled. There is no longer a need to keep this information in a stand-alone document. The information contained in this document has been incorporated into the Hanford External Technical Basis Document - ORAUT-TKBS-0006-6 Rev 04.

    • Page Change Revision November 7, 2006
      this document in PDF PDF 51 KB (10 pages)

      Document Number: ORAUT-OTIB-0030 Rev-00 PC-1

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

      Page Change Revision Includes: Page change revision due to release of ORAUT-OTIB-0052 Rev 00. Updates required language on page 3 in Section 1.0. Lists ORAUT-OTIB-0052 Rev 00 as a reference on page 5 in Section 5.0. Rewrites item 5 on page 7 in Section 7. Completes Section 8.0 on page 8. Adds Table 3 to page 10 in Section 8.0. Incorporates formal internal review comments. Per new document requirements, added a Table of Contents. This revision results in an increase in assigned dose and a PER is required.

    • Approved March 23, 2005
      this document in PDF PDF 39 KB (8 pages)

      Document Number: ORAUT-OTIB-0030 Rev-00

  • Technical Information Bulletin: Internal Dosimetry Coworker Data for the Hanford Site--CANCELED

    Note: There is no longer a need to keep this information in a stand-alone document. The information contained in this document has been incorporated into the Hanford Internal Technical Basis Document - ORAUT-TKBS-0006-5 Rev 03.

    • Revised October 1, 2007
      this document in PDF PDF 850 KB (55 pages)

      Document Number: ORAUT-OTIB-0039 Rev-01

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

      Revision Includes: Initiated to add Section 7.0, Attributions and Annotations and corresponding citations throughout the text. Also updated Sections 5.3, 5.3.1.2, 6.1 and Attachment A regarding Type S plutonium to provide best estimate intake values. Incorporates formal internal and NIOSH review comments.

    • Page Change Revision: January 31, 2007
      this document in PDF PDF 843 KB (55 pages)

      Document Number: ORAUT-OTIB-0039 Rev-00 PC-2

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

      Page Change Revision Includes: Approved page change revision. Revised to change thorium intakes based on assumption of equal "mass" as uranium; changed equilibrium conditions with progeny in the thorium chain based on new calculations and included statement of significance of Th-230 to be consistent with the current Hanford internal dosimetry TBD. Changes occurred on pages 33, 34, and 35. In Table 6-9 on page 35, in Section 6.7, corrected error in fission product intake in 1944-47 and adjusted I-131 intakes to be consistent with the Hanford Internal Dosimetry TBD. Made corrections to Table A-1 on page 38 in Attachment A. Incorporates internal and NIOSH formal review comments. The discussion and tables in Section 6.8 about radionuclides not measured in this study was removed. It is addressed in ORAUT-TKBS-0006-5. The pages affected by these changes are 23, 28, 30, and 32. This revision results in a reduction in assigned dose and no PER is required. No sections were deleted. Section 6.0: added Pu mixture statement consistent with Table in Section 5.1. Section 6.2: replaced sentence indicating all uranium exposure meant thorium exposure and referenced the Hanford internal dosimetry TBD for buildings and periods of thorium exposure. Clarified that thorium at PUREX would be Type M. In Table 6-4, corrected Type S intake for 1962-70 to 60.0 pCi/d; corrected PUREX type M intake to 0.957 based on type F. Added footnotes. Removed Table 6-5 on impurities in RU and referenced the TBD.

    • Page Change Revision January 6, 2006
      this document in PDF PDF 456 KB (54 pages)

      Document Number: ORAUT-OTIB-0039 Rev-00 PC-1

      Page Change Revision Includes: Corrects errors in units in Table 5-10 (page 27), Table 5-14 (page 28), Table 6-8 (page 33) and 6-10 (page 34). Corrects a value error in Table 6-9 (311.9 instead of 300 in the fifth column, page 33). Provides new guidance on how to assign radionuclides to unmonitored workers based on worker location, consistent with Hanford internal dosimetry TBD (Section 6.8, page 35). Corrects errors in Table 6-13 on page 36. No sections were deleted.

    • Approved October 28, 2005
      this document in PDF PDF 455 KB (54 pages)

      Document Number: ORAUT-OTIB-0039 Rev-00

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Page last updated: April 3, 2014
Page last reviewed: August 10, 2013
Content Source: National Institute for Occupational Safety and Health (NIOSH) Division of Compensation Analysis and Support