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NIOSH Program Area:

Radiation Dose Reconstruction

 

Paducah Gaseous Diffusion Plant
(Site Profile/Docket Number 030)

Location: Paducah, Kentucky

Site Profile

  1. Introduction
    (Revised August 23, 2012)
    this document in PDF PDF 74 KB (9 pages)

    Revision Includes: Added reference ORAUT-OTIB-0079. Revised the description of the Occupational Medical Dose technical basis document. Added information to indicate that coworker studies are now included in the Internal and External technical basis documents. No changes occurred as a result of formal internal and NIOSH review. Constitutes a total rewrite of the document.


  2. Site Description
    (Revised August 22, 2012)
    this document in PDF PDF 814 KB (24 pages)

    Revision Includes: Corrected references to yellowcake throughout the document. Section 2.1.2, added SEC discussion. Section 2.2, added brief overview of current site status. Revised Figure 2.2. Removed Tables 2-1 and 2-4, necessary information is provided in Sections 2.4.1 through 2.4.12. Removed Tables 2-2 and 2-3 because they were not used to perform dose reconstruction. Clarified CIP/CUP campaign dates throughout document. Section 2.3, paragraph 5, added - Activities in support of the cascade as well as other plant support activities continue in Building C-400. Section 2.4.1 and 2.4.2, changed 1999 to present. Section 2.4.4, paragraph 3, changed enrichment to UF6 reduction and metal production. Section 2.4.4, deleted connecting and disconnecting UF6 tails cylinders and handling tails as UF6, was not appropriate in this section. Section 2.4.7, paragraph 2, corrected wording changed reassembling to disassembling. Section 2.4.8, deleted Cascade operations 19531964, 19691970, and 19721976, was not appropriate in this section. Section 2.4.9, paragraph 1, changed converters to fluidized beds. Added Section 2.4.12, Building C-746B. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.


  3. Occupational Medical Dose
    (Revised August 23, 2012)
    this document in PDF PDF 279 KB (21 pages)

    Revision Includes: Adds assignment of dose from lumbar spine X-rays. Incorporates all site specific information found into dose assessments. Added skin doses from all procedures and periods. Added ORAUT-OTIB-0079 Rev 00 reference. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.


  4. Occupational Environmental Dose
    (Revised August 24, 2012)
    this document in PDF PDF 1.7 MB (36 pages)

    Revision Includes: Addresses SC&A concerns about the document as identified in SC&A-TR-TASK1-0016, Review of the NIOSH Site Profile for the Paducah Gaseous Diffusion Plant. Wording was revised throughout the document to add clarity. Figure 4-5 was added to show onsite air monitoring locations. The external dose equivalent rates in Table 4-6 have been revised based on available historical data. Guidance provided in ORAUT-PROC-0060 has been added. Acronyms and Abbreviations, References, and Glossary Sections have been updated. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.


  5. Occupational Internal Dose
    (Revised August 24, 2012)
    this document in PDF PDF 406 KB (45 pages)

    Revision Includes: Added SEC language. Added dates to Table 5-1 for C-720 Maintenance. Clarified column titles in Tables 5-2 and 5-2a. Updated references. Deleted previous Table 5-3 (not used in dose reconstruction). Revised Table numbers. Revised in vitro measurement in Table 5-3 for 1952 1988 period from 5 g/L to 0.005 mg/L. Moved reporting formats and codes to Attachment A. Added Attachment B, Internal Dosimetry Coworker Data for PGDP (formerly ORAUT-OTIB-0037 Rev 00). Added the option for dose reconstructors to use the 95th-percentile intake rate in Attachment B. Added Attachment C to provide dose reconstructors a general idea of the types of job categories, work activities, and work locations for which internal dose assignment might be necessary. Added Section 5.4.5, Assessment of Intake for Unmonitored Employees. Moved Table 5-8, A History of Significant Events, to Attachment C. Incorporates formal NIOSH review comments. Constitutes a total rewrite of the document.


  6. Occupational External Dose
    (Revised August 24, 2012)
    this document in PDF PDF 919 KB (48 pages)

    Revision Includes: Addresses SC&A concerns about the document as identified in SC&A-TR-TASK1-0016, Review of the NIOSH Site Profile for the Paducah Gaseous Diffusion Plant. Wording was revised throughout the document to add clarity. Acronyms and Abbreviations, References, and Glossary Sections have been updated. Table 6-1 has been revised to change four-element film to two-element film from 1953 through July 1, 1960, and to add an annual badge exchange option beginning in 1989. Building start dates in Table 6-3 have been clarified. Guidance for assigning neutron dose has been revised. Guidance for 99Tc exposure has been added as Attachment A. Guidance for coworker dose assignment based on ORAUT-OTIB-0031 has been incorporated into this TBD as Attachment B. The application of Construction Trade Worker doses has been added. Guidance for skin dose assignment based on ORAUT-OTIB-0017 has been incorporated into this TBD as Attachment C. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.

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Technical Information Bulletins (TIBs)

  • Internal Dosimetry Coworker Data Paducah Gaseous Diffusion Plant

    Document Number: ORAUT-OTIB-0037 Rev-00

    Note: This document was canceled. There is no longer a need to keep information in this stand-alone document. The information about methods contained in this document has been incorporated into ORAUT-TKBS-0019-5 Rev 03, Paducah Gaseous Diffusion Plant - Occupational Internal Dose. Previous versions of this document are located on this page under the Previous Versions of Paducah Gaseous Diffusion Plant Documents section.


  • External Coworker Dosimetry Data Paducah Gaseous Diffusion Plant

    Document Number: ORAUT-OTIB-0031 Rev-00 PC-2

    Note: This document was canceled. There is no longer a need to keep information in this stand-alone document. The information about the methods contained in this document has been incorporated into ORAUT-TKBS-0019-6 Rev 04, Paducah Gaseous Diffusion Plant - Occupational External Dose. Previous versions of this document are located on this page under the Previous Versions of Paducah Gaseous Diffusion Plant Documents section.

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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.

Program Evaluation Report: Evaluation of the Impact of Changes to the Isotopic Ratios in for the Paducah Gaseous Diffusion Plant
this document in PDF PDF 23 KB (3 pages)

Document Number: OCAS-PER-0013 Rev-00

About this Document: This document provides a list of previously completed claims that are potentially affected by a revision to the Paducah isotopic ratios.

Approved: August 13, 2007

Summary: An initial selection of claims was based on the following search criteria:

1. Probability of Causation (POC) less than 50%
2. Dose Reconstructions completed prior to November 7, 2006.

These criteria were used to produce a list of 734 potentially affected claims. NIOSH will provide this list to DOL and request these claims be returned for a new dose reconstruction. The new dose reconstruction will be completed using all the current methodology which will account for any other changes affecting these claims.

Program Evaluation Plan: Evaluation of the Impact of Changes to the Isotopic Ratios in for the Paducah Gaseous Diffusion Plant
this document in PDF PDF 20 KB (2 pages)

Document Number: OCAS-PEP-0013 Rev-00

About this Document: October 25, 2006, Revision 01 of ORAUT-TKBS-0019-5, Occupational Internal Dose was issued as part of the biennial review process. During the biennial revision of this TBD section, the information provided in existing document was evaluated to ensure that the published isotopic ratios for transuranic (TRU) radionuclides meet the criteria of providing either an accurate or maximum dose estimate. The results of the evaluation indicated that the current ratios did not meet that goal. Information provided in existing references (particularly PACE and the University of Utah, 2000; BJC, 2000), as well as that found in a new reference was assessed with the result that new TRU isotopic ratios were developed and are included in the TBD as Tables 5-2 and 5-2a in the revised document.

On November 7, 2006 Revision 01 of ORAUT-TKBS-0019-4, Occupational Environmental Dose was issued. A revaluation of the source data for ORAUT-TKBS-0019-5 led to a revision to the TRU isotopic ratios (relative to uranium) for estimating dose from these radionuclides. In addition, the authors have been able to categorize these ratios according to specific processes and periods as described below in conjunction with ORAUT-TKBS-0019-5.

Approved: March 21, 2007


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Miscellaneous Documents

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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 Paducah Gaseous Diffusion Plant:

  • December 8, 2009
    Meeting with Western Kentucky Building and Construction Trades Council, Paducah, Kentucky

    Final minutes
    this document in PDF PDF 55 KB (5 pages)

  • December 7, 2009
    Meeting with United Steelworkers of America (USW) Local 550, Paducah, Kentucky

    Final minutes
    this document in PDF PDF 87 KB (14 pages)

  • February 11, 2005
    Meeting with Western Kentucky Building and Construction Trades Council

    Final minutes
    this document in PDF PDF 35 KB (6 pages)

  • February 10, 2005
    Meeting with PACE Local 5-550 and SPFPA Local 111

    Final minutes
    this document in PDF PDF 57 KB (12 pages)

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

This Work Group is responsible for reviewing the Site Profiles for Paducah, K-25, 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 Paducah, K-25, 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 Paducah, K-25, 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.

      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 Paducah, K-25, 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.

      Transcript
      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 General Steel Industries (GSI)

The Paducah Gaseous Diffusion Plant 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 Paducah Gaseous Diffusion Plant Documents

How to Submit Comments
Comments on Paducah Gaseous Diffusion Plant 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, 1090 Tusculum Avenue, Cincinnati, OH 45226. Please include the Site Profile/Docket Number (030) on all comments.

Comments Received

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Special Exposure Cohort Petition Information for Paducah Gaseous Diffusion Plant

  • SEC Petitions Not Qualifying for Evaluation
    In addition to the petition listed below, an additional petition was received but did not qualify for evaluation because it did not meet the minimum petition requirements.


  • 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 Paducah Gaseous Diffusion Plant was one of the classes that Congress included when The Act was signed.

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Previous Versions of Paducah Gaseous Diffusion Plant Documents

  • Site Profile: Introduction

    • Revised April 2, 2007
      this document in PDF PDF 104 KB (8 pages)

      Page Change Revision Includes: Incorporates Attributions and Annotations Section 1.3 and updates the References section. Constitutes a total rewrite of the document. 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 and no PER is required.


    • Page Change Revision August 30, 2006)
      this document in PDF PDF 70 KB (6 pages)

      Page Change Revision Includes: Approved page change revision to review against Worker Outreach comments and periodic revision. Updates required language on page 4 in Section 1.0. No sections were deleted. No further changes occurred as a result of internal formal review. This revision results in no change to the assigned dose.

    • Approved September 9, 2004
      this document in PDF PDF 78 KB (6 pages)

  • Site Profile: Site Description

    • Revised May 8, 2007
      this document in PDF PDF 221 KB (31 pages)

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


    • Revised August 21, 2006
      this document in PDF PDF 442 KB (29 pages)

      Revision Includes: This revision addresses comment #2 from the meeting with United Steelworkers Local 5-550 (formerly PACE) and SPFPA Local 111 held on 02/10/2005. This revision results in no change to the assigned dose.


    • Approved May 7, 2004
      this document in PDF PDF 222 KB (23 pages)

  • Site Profile: Occupational Medical Dose

    • Revised June 18, 2007
      this document in PDF PDF 180 KB (20 pages)

      Revision Includes: Initiated to add Attribution and Annotations Section. Constitutes a total rewrite of the document. Incorporates formal internal and NIOSH review comments. This revision results in no change to the assigned dose and no PER is required.


    • Revised September 26, 2006
      this document in PDF PDF 231 KB (22 pages)

      Revision Includes: Revised as a result of biennial review. Constitutes a total rewrite of the document. Incorporates internal formal review comments. Incorporates NIOSH formal review comments. This revision results in a reduction in assigned dose.


    • Approved February 5, 2004
      this document in PDF PDF 186 KB (20 pages)

  • Site Profile: Occupational Environmental Dose

    • Revised April 23, 2007
      this document in PDF PDF 959 KB (33 pages)

      Revision Includes: Incorporates Attributions and Annotations section. Rearranged tables and corrected the List of Tables. Constitutes a total rewrite of the document. Incorporates formal internal review comments. This revision results in no change to the assigned dose and no PER is required.

    • Revised November 7, 2006
      this document in PDF PDF 943 KB (31 pages)

      Revision Includes: Approved Revision 01 initiated to address comments from earlier unresolved comments received on TBD. Constitutes a total rewrite of document. Incorporates additional information obtained through additional data capture for the Paducah Gaseous Diffusion Plant. This revision to addresses the Worker Outreach comment: "The use of the Site Profile is redundant and does not help claimants in any way. The Site Profile only represents incorrect, inaccurate, and incomplete information provided by DOE" This revision involved researching documents to provide a revision which ensured that the most correct, accurate, and complete information available was used. Text was added or modified in sections 4.1, 4.2, 4.3, 4.4,and in the Acronyms and Abbreviations, References, and Glossary. No sections were deleted. Incorporates internal, NIOSH and DOL formal review comments. This revision results in an increase in assigned dose and a PER is required. The increase in assigned dose is based on the revision to Table 4-2 that adds transuranic exposures in the environment.

    • Approved August 24, 2004
      this document in PDF PDF 527 KB (22 pages)

  • Site Profile: Occupational Internal Dose

    • Revised April 4, 2007
      this document in PDF PDF 344 KB (25 pages)

      Revision Includes: Incorporates Attributions and Annotations section and improved reference citations in the text. 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.


    • Page Change Revision January 31, 2007
      this document in PDF PDF 311 KB (24 pages)

      Page Change Revision Includes: Approved page change revision initiated to correct the title of Table 5-2 on page 10. Modified Table 5-4 on page 13 to consolidate the years of 1952-1998 onto the first line of the table. Added Table 5-2a to the List of Tables. Incorporates formal internal and NIOSH review comments. Includes changes to Table 5-2a (page 11). This revision results in no change to the assigned dose and no PER is required.

    • Revised October 25, 2006
      this document in PDF PDF 270 KB (24 pages)

      Revision Includes: This revision addresses the comment from the meeting with the United Steelworkers Local 5-550 and SPFPA Local 111 held on 2/10/2005. Constitutes a total rewrite of document. Incorporates recent direction from NIOSH to include DOL review comments on page 5. Revisions address corrective actions responding to OCAS assessment and internal review comments from Task 5. Changes were made at the end of Section 5.2. The original Table 5-3 has been deleted and replaced with an expansion of the original Table 5-4, which becomes Table 5-3. Table 5-2 has been updated to reflect new Table numbers. Incorporates internal and NIOSH formal review comments. This revision results in an increase in assigned dose and a PER is required.

    • Approved September 30, 2004
      this document in PDF PDF 246 KB (26 pages)


  • Site Profile: Occupational External Dose section

    • Revised April 4, 2007
      this document in PDF PDF 721 KB (34 pages)

      Revision Includes: Incorporates Attributions and Annotations section. Constitutes a total rewrite of the document. This revision results in no change to the assigned dose and no PER is required.

    • Revised August 30, 2006
      this document in PDF PDF 715 KB (33 pages)

      Revision Includes: Initiated to address comments from earlier unresolved comments received on TBD. Incorporates additional information obtained through additional data capture for the Paducah Gaseous Diffusion Plant. Incorporates revised standard language into Purpose section and adds a Scope section. This revision addresses comments from the Worker Outreach meeting with the United Steelworkers Local 5-550 and Security, Police, Fire Professionals of America Local 111 held on February 10, 2005. Constitutes a total rewrite of the document. This revision results in a reduction in assigned dose.


    • Revised March 29, 2005
      this document in PDF PDF 638 KB (25 pages)

      Revision Includes: Incorporates results of additional research and responses to outstanding comments, formal internal review, and NIOSH comments.

    • Approved August 24, 2004
      this document in PDF PDF 255 KB (27 pages)


  • Technical Information Bulletin: Internal Dosimetry Coworker Data for the Paducah Gaseous Diffusion Plant--CANCELED

    Note: This document was canceled. There is no longer a need to keep information in this stand-alone document. The information about methods contained in this document has been incorporated into ORAUT-TKBS-0019-5 Rev 03, Paducah Gaseous Diffusion Plant - Occupational Internal Dose.

    • Approved September 20, 2005
      this document in PDF PDF 191 KB (15 pages)

      Document Number: ORAUT-OTIB-0037 Rev-00

      About this Document: Establishes the technical basis for assignment of Paducah Gaseous Diffusion Plant internal doses based on coworker bioassay data.


  • Technical Information Bulletin: External Coworker Dosimetry Data Paducah Gaseous Diffusion Plant--CANCELED

    Note: This document was canceled. There is no longer a need to keep information in this stand-alone document. The information about the methods contained in this document has been incorporated into ORAUT-TKBS-0019-6 Rev 04, Paducah Gaseous Diffusion Plant - Occupational External Dose.

    • Page Change Revision November 7, 2006
      this document in PDF PDF 138 KB (12 pages)

      Document Number: ORAUT-OTIB-0031 Rev-00 PC-2

      Page Change Revision Includes: Page change revision due to release of ORAUT-OTIB- 0052 Rev 00. Updates required language on page 4 in Section 1.0. References ORAUT-OTIB-0052 Rev 00 on page 6 in Section 5.0. Completes Section 8.0 on page 9. Completes Table 3 title on page 11. No further changes occurred as a result of NIOSH formal review. This revision results in an increase in assigned dose and a PER is required.

    • Page Change Revision August 15, 2005
      this document in PDF PDF 125 KB (11 pages)

      Document Number: ORAUT-OTIB-0031 Rev-00 PC-1

      Page Change Revision Includes: Page change incorporates recent direction from NIOSH regarding the calculation and use of coworker doses to pages 8 and 10. Text was modified in Sections 7.0 and 8.0. No sections were deleted.

    • Approved May 19, 2005
      this document in PDF PDF 130 KB (11 pages)

      Document Number: ORAUT-OTIB-0031 Rev-00


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

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Page last updated: January 8, 2013
Page last reviewed: August 10, 2013
Content Source: National Institute for Occupational Safety and Health (NIOSH) Division of Compensation Analysis and Support