Skip directly to site content Skip directly to search


Español  Other Languages


Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
 Search
		×
			NIOSH
			NIOSH
				All CDC
				Submit
			For a full list of topics:A-Z Index
			Advanced Search
		Advanced Search


NIOSH Radiation Dose Reconstruction Program


Section Navigation
			
			CDC Home








alert icon
            Cybersecurity Modernization Initiative
                We are taking steps to continue to modernize and secure our data, applications, and systems. We completed the first phase and restored many of the functions put on pause in May 2021. Now that the first phase is complete, work will resume at a slower pace but will speed up as new systems and applications are brought online. For more information and updates, please visit our Cybersecurity Modernization Initiative web page.
								

				Ames Laboratory						Print
																Related Pages
										On This Page
			Special Exposure CohortWorker Outreach ActivitiesAdvisory Board Work GroupTechnical DocumentsAdvisory Board and NIOSH DiscussionsProgram Evaluation Plans and Reports (PEPs and PERs)Public CommentsDocument Archive
		
(Site Profile/Docket Number 079)
Location: Ames, Iowa
Also Known As: Iowa State University
Special Exposure Cohort Petition Information
The Special Exposure Cohort (SEC) is a unique category of employees established by the Act (42 CFR Part 83). Claims compensated under the SEC do not have to go through the dose reconstruction process. To qualify for compensation under the SEC, a covered employee must meet specific requirements (e.g., must have at least one of 22 “specified cancers,” and have worked for a specified time period at one of the SEC sites). Classes of employees and work sites can be considered for addition to the SEC through a NIOSH petition process. More information about the Special Exposure Cohort can be found on our Frequently Asked Questions page.
Open/Active SEC Petitions
There are currently no open/active SEC petitions from Ames Laboratory.
Class(es) Added to the SEC
**Ames Laboratory**–Department of Energy (DOE) employees or DOE contractor or subcontractor employees who worked at the Ames Laboratory in one or more of the following facilities/locations: Chemistry Annex 1 (also known as “the old women’s gymnasium” and “Little Ankeny”), Chemistry Annex 2, Chemistry Building (also known as “Gilman Hall”), Research Building, or the Metallurgical Building (also known as “Harley Wilhelm Hall”) from January 1, 1942 through December 31, 1954 for a number of work days aggregating at least 250 work days, or in combination with work days within the parameters (excluding aggregate work day requirements) established for one or more classes of employees in the SEC, and who were monitored or should have been monitored.
**Note:** This class was established from Petition 38
**Ames Laboratory**–Sheet metal workers, physical plant maintenance and associated support staff (including all maintenance shop personnel), and supervisory staff who were monitored or should have been monitored for potential internal radiation exposures associated with the maintenance and renovation activities of the thorium production areas in Wilhelm Hall (a.k.a. the Metallurgy Building or “Old” Metallurgy Building) at the Ames Laboratory from January 1, 1955, through December 31, 1970, 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 75
**Ames Laboratory**–All employees of the Department of Energy, its predecessor agencies, and its contractors and subcontractors who worked in any area of the Department of Energy facility at the Ames Laboratory from January 1, 1955 through December 31, 1960, 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 166
**Ames Laboratory**–All Department of Energy (DOE) employees, its predecessor agencies, and its contractors and subcontractors who worked in any area of the Ames Laboratory at Iowa State University during the period from August 13, 1942 through December 31, 1970, 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 classes of employees included in the Special Exposure Cohort.
**Note:** This class was established from Petition 185
**Ames Laboratory**–All employees of the Department of Energy, its predecessor agencies, and their contractors or subcontractors who worked in any area of the Ames Laboratory in Ames, Iowa, during the period from January 1, 1971, through December 31, 1989, 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 245
Petitions Qualified for Evaluation
Below is a list of the petitions that qualified for evaluation. Select a petition on the list to view the table for that particular petition.
Petition 38 (Jan 1, 1942 to Dec 31, 1955)
	Petition 38
Steps in Petition Process:
Petition Details:Date Received
June 29, 2005Date Qualified for Evaluation
September 23, 2005Summary of Information in Petition
**Location:** Ames, Iowa
**Job Titles and/or Job Duties:** All scientists; production workers; technicians; salaried graduate students; physical plant workers; maintenance, administrative and support staff; and subcontracted workers
**Period of Employment:** January 1, 1942 through December 31, 1955
**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 petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.Copy of the Petition Received
June 29, 2005
(January 1, 1942 through December 31, 1955)
Part 1 [2.03 MB (45 pages)]
Part 2 [989 KB (45 pages)]
Part 3 [1.43 MB (50 pages)]
Part 4 [1.82 MB (55 pages)]
Part 5 [1.4 MB (45 pages)]
Part 6 [1.4 MB (45 pages)]
Part 7 [1.6 MB (50 pages)]
Part 8 [1.51 MB (55 pages)]Federal Register Notice Announcing that a Ames Laboratory SEC Petition has met the Minimum Qualifications for Review and Evaluation
October 17, 2005 [77 KB (1 page)]
(January 1, 1942 through December 31, 1955)SEC Petition Evaluation Report
April 10, 2006 [180 KB (35 pages)]
(January 1, 1942 through December 31, 1954)Evaluation Report Sent to the Advisory Board
April 10, 2006
(January 1, 1942 through December 31, 1954)Petition Discussed by the Advisory Board
The petition covering January 1, 1942, through December 31, 1954, was discussed during the June 15, 2006, Advisory Board meeting.
**Note:** Agendas and transcripts for Board meetings will be posted on the Advisory Board and Public Meetings page as soon as they become available.Advisory Board Recommendation on SEC Petition
July 5, 2006 [263 KB (2 pages)]
(January 1, 1942 through December 31, 1954)HHS Letters to Congress Regarding the SEC Petition
August 8, 2006 [259 KB (6 pages)]
(January 1, 1942 through December 31, 1954)HHS Designation/Determination of Additional Members to the SEC
**Designation:**
August 8, 2006 [166 KB (4 pages)]
(January 1, 1942 through December 31, 1954)
**Note:** A “designation” means that HHS is recommending a class be added to the SEC. A “determination” means that HHS is recommending a class **not** be added to the SEC.Federal Register Notice: Designation/Determination Regarding a Class of Employees for Addition to the Special Exposure Cohort
**Designation:**
September 7, 2006 [46 KB (1 page)]
(January 1, 1942 through December 31, 1954)
**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 7, 2006
(January 1, 1942 through December 31, 1954)
**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
September 22, 2006 [103 KB (2 pages)]
(January 1, 1942 through December 31, 1954)
**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
September 12, 2006 [43 KB (1 page)]
(January 1, 1942 through December 31, 1954)
**Note:** This only applies if the class is added to the SEC.Petition 75 (Jan 1, 1955 to Dec 31, 1970)
	Petition 75
Steps in Petition Process:
Petition Details:Date Received
October 23, 2006Date Qualified for Evaluation
January 30, 2007Summary of Information in Petition
**Location:** Ames, Iowa
**Job Titles and/or Job Duties:** All sheet metal workers, physical plant maintenance and associated support staff (includes all maintenance shop personnel) of Ames Laboratory and supervisory staff that may have been exposed to the maintenance and renovation activities of the thorium production areas in Wilhelm Hall (also known as the Metallurgy Building or ”Old” Metallurgy Building)
**Period of Employment:** January 1, 1955 through December 31, 1970
**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 petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.Copy of the Petition Received
October 23, 2006 [395 KB (10 pages)]
(January 1, 1955 through December 31, 1970)Federal Register Notice Announcing that a Ames Laboratory SEC Petition has met the Minimum Qualifications for Review and Evaluation
March 1, 2007 [45 KB (1 page)]
(January 1, 1955 through December 31, 1970)SEC Petition Evaluation Report
May 14, 2007 [228 KB (31 pages)]
(January 1, 1955 through December 31, 1970)Evaluation Report Sent to the Advisory Board
May 16, 2007
(January 1, 1955 through December 31, 1970)Petition Discussed by the Advisory Board
The petition covering January 1, 1955, through December 31, 1970, was discussed on July 18, 2007, during the Advisory Board’s regular meeting.
**Note:** Agendas and transcripts for Board meetings will be posted on the Advisory Board and Public Meetings page as soon as they become available.Advisory Board Recommendation on SEC Petition
August 9, 2007 [89 KB (2 pages)]
(January 1, 1955 through December 31, 1970)HHS Letters to Congress Regarding the SEC Petition
September 12, 2007 [298 KB (6 pages)]
(January 1, 1955 through December 31, 1970)HHS Designation/Determination of Additional Members to the SEC
**Designation:**
September 12, 2007 [202 KB (4 pages)]
(January 1, 1955 through December 31, 1970)
**Note:** A “designation” means that HHS is recommending a class be added to the SEC. A “determination” means that HHS is recommending a class **not** be added to the SEC.Federal Register Notice: Designation/Determination Of a Class of Employees for Addition to the Special Exposure Cohort
**Designation:**
September 28, 2007 [77 KB (1 page)]
(January 1, 1955 through December 31, 1970)
**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
October 12, 2007
(January 1, 1955 through December 31, 1970)
**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
October 29, 2007 [82 KB (1 page)]
(January 1, 1955 through December 31, 1970)
**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
October 19, 2007 [20 KB (1 page)]
(January 1, 1955 through December 31, 1970)
**Note:** this only applies if the class is added to the SEC.Petition 166 (Jan 1, 1955 to Dec 31, 1960)
	Petition 166
Steps in Petition Process:
Petition Details:Date Received
February 12, 2010Date Qualified for Evaluation
March 26, 2010Summary of Information in Petition
**Location:** Ames, Iowa
**Job Titles and/or Job Duties:** Scientists, production workers, technicians, salaried graduate students, physical plant workers, administrative and support staff who worked in the Atomic Energy Commission and Department of Energy facilities on the Ames Laboratory Campus variably known as Annexes 1 and 2, Hot Canyon, Wilhelm Hall or Metallurgy Building, Spedding Hall, Research and Chemistry Buildings.
**Period of Employment:** January 1, 1955 through December 31, 1960
**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 petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.Copy of the Petition Received
February 12, 2010 [897 KB (29 pages)]
(January 1, 1955 through December 31, 1960)Federal Register Notice Announcing that an Ames Laboratory SEC Petition has met the Minimum Qualifications for Review and Evaluation
April 8, 2010 [71 KB (1 page)]
(January 1, 1955 through December 31, 1960)SEC Petition Evaluation Report
July 30, 2010 [457 KB (88 pages)]
(January 1, 1955 through December 31, 1960)Evaluation Report Sent to the Advisory Board
July 30, 2010
(January 1, 1955 through December 31, 1960)Petition Discussed by the Advisory Board
The petition covering January 1, 1955, through December 31, 1960, was discussed by the Advisory Board on August 11, 2010, during its regular meeting.
**Note:** Agendas and transcripts for Board meetings will be posted on the Advisory Board and Public Meetings page as soon as they become available.Advisory Board Recommendation on SEC Petition
September 1, 2010 [48 KB (2 pages)]
(January 1, 1955 through December 31, 1960)HHS Letters to Congress Regarding the SEC Petition
October 6, 2010 [107 KB (10 pages)]
(January 1, 1955 through December 31, 1960)HHS Designation/Determination of Additional Members to the SEC
**Designation:**
October 6, 2010 [38 KB (5 pages)]
(January 1, 1955 through December 31, 1960)
**Note:** A “designation” means that HHS is recommending a class be added to the SEC. A “determination” means that HHS is recommending a class **not** be added to the SEC.Federal Register Notice: Designation Regarding a Class of Employees for Addition to the Special Exposure Cohort
**Designation:**
October 21, 2010 [48 KB (1 page)]
(January 1, 1955 through December 31, 1960)
**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
November 5, 2010
(January 1, 1955 through December 31, 1960)
**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
December 1, 2010 [52 KB (1 page)]
(January 1, 1955 through December 31, 1960)
**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
November 8, 2010 [29 KB (1 page)]
(January 1, 1955 through December 31, 1960)
**Note:** This only applies if the class is added to the SEC.Petition 185 (Aug 13, 1942 to Dec 31, 1970)
	Petition 185
Steps in Petition Process:
Petition Details:Date Received
April 7, 2011Date Qualified for Evaluation
June 13, 2011Summary of Information in Petition
**Location:** Ames, Iowa
**Job Titles and/or Job Duties:** All Department of Energy (DOE) employees, its predecessor agencies, and its contractors and subcontractors who worked in any area of the DOE facility
**Period of Employment:** January 1, 1942 through December 31, 1970
**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 petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.Copy of the Petition Received
April 7, 2011 [146 KB (2 pages)]
(January 1, 1942 through December 31, 1970)Federal Register Notice Announcing that a Ames Laboratory SEC Petition has met the Minimum Qualifications for Review and Evaluation
April 25, 2011 [80 KB (1 page)]
(January 1, 1942 through December 31, 1970)SEC Petition Evaluation Report
Revised July 14, 2011, Rev. 1 [375 KB (49 pages)]
(August 13, 1942 through December 31, 1970); Corrects the start date to match the Manhattan Engineering District start dateEvaluation Report Sent to the Advisory Board
July 14, 2011 (Revision 1)
(August 13, 1942 through December 31, 1970)Petition Discussed by the Advisory Board
The Advisory Board discussed the petition on August 25, 2011, during its regular meeting. The Advisory Board previously discussed the petition via teleconference on July 11, 2011.
**Note:** Agendas and transcripts for Board meetings will be posted on the Advisory Board and Public Meetings page as soon as they become available.Advisory Board Recommendation on SEC Petition
September 14, 2011 [48 KB (2 pages)]
(August 13, 1942 through December 31, 1970)HHS Letters to Congress Regarding the SEC Petition
October 18, 2011 [104 KB (10 pages)]
(August 13, 1942 through December 31, 1970)HHS Designation/Determination of Additional Members to the SEC
**Designation:**
October 18, 2011 [42 KB (5 pages)]
(August 13, 1942 through December 31, 1970)
**Note:** A “designation” means that HHS is recommending a class be added to the SEC. A “determination” means that HHS is recommending a class **not** be added to the SEC.Federal Register Notice: Designation/Determination Of a Class of Employees for Addition to the Special Exposure Cohort
**Designation:**
November 4, 2011 [51 KB (1 page)]
(August 13, 1942 through December 31, 1970)
**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
November 17, 2011
(August 13, 1942 through December 31, 1970)
**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
November 28, 2011 [170 KB (1 page)]
(August 13, 1942 through December 31, 1970)
**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
November 17, 2011 [29 KB (1 page)]
(August 13, 1942 through December 31, 1970)
**Note:** This only applies if the class is added to the SEC.Petition 245 (Jan 1, 1971 to Dec 31, 1989)
	Petition 245
Steps in Petition Process:
Petition Details:Date Received
November 30, 2017Date Qualified for Evaluation
December 6, 2017Summary of Information in Petition
**Location:** Ames, Iowa
**Job Titles and/or Job Duties:** All employees of the Department of Energy, its predecessor agencies, and their contractors and subcontractors
**Period of Employment:** January 1, 1971 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 petition process and if an SEC class is proposed, the proposed class may not exactly match the above information.Copy of the Petition Received
November 30, 2017 [2 MB (3 pages)]
(January 1, 1971 through December 31, 1989)Federal Register Notice Announcing that a Ames Laboratory SEC Petition has met the Minimum Qualifications for Review and Evaluation
December 26, 2017 [76 KB (1 page)]
(January 1, 1971 through December 31, 1989)SEC Petition Evaluation Report
November 30, 2017 [555 KB (41 pages)]
(January 1, 1971 through December 31, 1989)Evaluation Report Sent to the Advisory Board
December 4, 2017
(January 1, 1971 through December 31, 1989)Petition Discussed by the Advisory Board
The Advisory Board discussed the petition on December 13, 2017, during its regular meeting.
**Note:** Agendas and transcripts for Board meetings will be posted on the Advisory Board and Public Meetings page as soon as they become available.Advisory Board Recommendation on SEC Petition
December 29, 2017 [87 KB (2 pages)]
(January 1, 1971 through December 31, 1989)HHS Letters to Congress Regarding the SEC Petition
February 1, 2018 [194 KB (13 pages)]
(January 1, 1971 through December 31, 1989)HHS Designation/Determination of Additional Members to the SEC
**Designation:**
February 1, 2018 [112 KB (5 pages)]
(January 1, 1971 through December 31, 1989)
**Note:** A “designation” means that HHS is recommending a class be added to the SEC. A “determination” means that HHS is recommending a class **not** be added to the SEC.Federal Register Notice: Designation/Determination Of a Class of Employees for Addition to the Special Exposure Cohort
**Designation:**
February 9, 2018 [57 KB (1 pages)](January 1, 1971 through December 31, 1989)
**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
March 3, 2018
(January 1, 1971 through December 31, 1989)
**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
March 15, 2018 [105 KB (1 page)]
(January 1, 1971 through December 31, 1989)
**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
March 5, 2018 [66 KB (1 page)]
(January 1, 1971 through December 31, 1989)
**Note:** This only applies if the class is added to the SEC.
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.
Worker Outreach Activities for the Ames Laboratory:
No activities are scheduled at this time.
Advisory Board Work Group on Ames Laboratory
This Work Group is responsible for a review of the Ames Laboratory Site Profile and a review of the Site Profile by the Board’s contractor (SC&A). The Work Group shall consider issues identified by SC&A concerning the Site Profile and shall assist 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:**
David Kotelchuck, Ph.D., M.P.H., C.I.H. (Chair)
Victoria A. Cassano, M.D., M.P.H.
Bradley P. Clawson
Genevieve S. Roessler, Ph.D.
Loretta R. Valerio
**Meeting Information:**
No meetings have been scheduled at this timeTechnical Documents
If the energy employee’s personal radiation information is incomplete, NIOSH will use other sources to estimate the radiation dose. This may involve using technical documents called Site Profiles, Technical Basis Documents, and Technical Information Bulletins.
Site Profile
Site Profile for Ames Laboratory [3 MB (78 pages)]
            Revised September 18, 2023
**Revision Includes:** Revision initiated to incorporate SEC-00245. Section 1.3 edited to update partial dose reconstruction information and to introduce SEC-00245. Section 4.4 deleted per SEC. Section 5.1.1.4 deleted. Section 5.2 edited to remove thorium intakes prior to 1990 per SEC. Section 5.3.1 updated to present improved example tritium bioassay records. Section 5.3.2 edited to start tritium exposures in 1990 per SEC. Section 5.3.3 deleted to remove tritium unmonitored exposures per SEC. Sections 5.4.1 and 5.4.2 revised to remove fission product intakes per SEC. Summary table edited to incorporate revisions and deletions discussed above. Section 6.3.1 was edited to remove unmonitored doses prior to 1955 per SEC. Section 6.4 edited to extend exposure to organ dose factor to 1985, in line with NVLAP certification. Section 7 was updated to assign A&A citations to current project personnel. Brought into compliance with ORAUT-PROC-0031 as specified during discussions with NIOSH. Section 4.5 updated to include uranium intakes based on residual contamination and subsequent reduction per Battelle-TBD-6000 and ORAUT-OTIB-0070. Thorium ingestion intakes added based on NUREG/CR 6755. Incorporates additional formal NIOSH review comments. Sections 4.1 and 5.1 edited to incorporate environmental uranium intakes as documented in NIOSH Response to SC&A Review of the Ames Site Profile Document Regarding Uranium Internal Exposures white paper. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of a focused revision.
Advisory Board and NIOSH Discussions on Ames Laboratory
The Ames Laboratory 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.
NIOSH/DCAS: Evaluation Report for SEC-00245 Ames Laboratory 1971-1989 [247 KB (18 pages)]
            Presented at the December 13-14, 2017, Meeting of the Advisory Board on Radiation and Worker Health
SC&A Draft: SC&A’s Review of the NIOSH Document Issued March 3, 2016, Titled, *“Discussion of Ames Laboratory TBD Findings on External Dose”* [97 KB (12 pages)]
            Contract No. 211-2014-58081
            SCA-TR-2016-SP007, Rev. 0
            June 28, 2016
NIOSH/DCAS: Discussion of Ames Laboratory TBD Findings on External Dose [229 KB (16 pages)]
            Rev. 0, March 3, 2016
SC&A Draft: SC&A’s Review of the NIOSH Document Issued July 29, 2015, Titled, “NIOSH Response to SC&A Review of the Ames Site Profile Document Regarding Uranium Internal Exposure” [107 KB (14 pages)]
            Contract No. 211-2014-58081, Revision 0
            September 8, 2015
NIOSH/ORAU: NIOSH Response to SC&A Review of the Ames Site Profile Document Regarding Uranium Internal Exposures [286 KB (20 pages)]
            July 29, 2015
SC&A Draft: Review of the NIOSH Site Profile for the Ames Laboratory [7 MB (159 pages)]
            Contract No. 200-2009-28555
            SCA-TR-SP2013-0044, Revision 0
            August 14, 2013
SC&A Draft: A Preliminary Review of NIOSH’s Program Evaluation Report DCAS-PER-037, “Ames Laboratory TBD Revision” [119 KB (23 pages)]
            Contract No. 200-2004-03805
            SCA-TR-PR2013-0037, Rev. 0
            January 2, 2013Program Evaluation Plans (PEPs) and Program Evaluation Reports (PERs)
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.
DCAS-PER-037 Rev-0: Revision 3 of the Ames Laboratory Technical Basis Document (ORAU-TKBS-0055) [21 KB (3 pages)]July 17, 2012
**About this Document:** Revision 3 of the Ames Laboratory Technical Basis Document (ORAU-TKBS-0055) was issued on 1/3/2012. The previous version (revision 2) was issued on 1/14/2011. Revision 1 was issued 12/18/2009 and Revision 0 PC-1 was issued 8/20/2008. This PER considered the changes that were made between the current revision (revision 3) and all previous versions of the TBD.
**Summary:** For the 16 claims requiring further evaluation, dose was recalculated using all current dose reconstruction methods including the current version of the TBD. Only one claim resulted in a probability of causation greater than 50%. NIOSH will notify DOL of these results and request a return of the one case that would now be greater than 50%.Public Comments on Ames Laboratory Documents
How to Submit Comments
Comments on Ames Laboratory Documents can be submitted to the NIOSH Docket Officer electronically by email at nioshdocket@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 (079) on all comments.
Comments Received
At this time, no comments have been submitted.
Document Archive for Ames Laboratory
Site Profile for Ames Laboratory
Revised January 3, 2012 [1.1 MB (90 pages)]
**Revision Includes:** Revision initiated to include SEC-00185. Section 1.3.4 was added. Section 1.3 edited to update partial dose reconstruction information and to introduce new SEC. Sections 1.3.1 and 1.3.2 were edited to show inclusion of all workers in those SECs. Expansion of class was inserted in sections of the document as necessary. Section 5.4.1 edited to state environmental doses should be applied to certain Research Building workers. Battelle 2006a was updated to Battelle 2011 and Battelle 2006b was canceled and replaced with other references. Changes were made to several sections and tables in Sections 5.1 and 6.3. Section 6.3.1.2 was updated to reduce missed dose component of beta doses in Table 6-7. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.
Revised January 14, 2011 [968 KB (87 pages)]
**Revision Includes:** Incorporates SEC-00166. Section 1.3.3 and Table 1-3 added. Section 2.1.6 updated to note the end of hot cell operations in the Research Building. Paragraph added in Section 5.0 to discuss SEC-00166. Section 5.1.1.3 updated with internal intake information from SEC-00166. Table 5-4 and 5-8 updated with updated intake rates. Section 5.4.1 updated to remove statement that intakes from the Research Building hot cell would be negligible. Removed A&A point. Added SEC-00166 to the reference section as NIOSH 2010. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite of the document.
Revised December 18, 2009 [1 MB (96 pages)]
**Revision Includes:** Approved revision to add LAT chest doses for all periods, skin doses for various parts of the body, and an explanation of terminology. Sections 3.0 and 3.1 were modified as a result of these changes. Tables 3-1 through 3-6 were modified and Tables 3-7 and 3-8 were added. The definition of occupational medical dose was revised and three reference titles were changed. Wording in Section 6.2.1 about external uranium dose was modified. Revision made to add unmonitored doses prior to 1953. Section 6.2.1 reworded to remove OTIB-0004 discussion and add new methodology. Section 6.3.1 was modified to include two eras of unmonitored doses. Figure 6-2 was altered to reflect the new unmonitored dose methodology for doses prior to 1953. Table 5-1 was separated into three tables. Changes were made to Table 5-7 (now 5-8) to clarify and correct intake values. Wording was added to Section 1.3 to caution the Dose Reconstructor on when to label the DR as a partial DR. Incorporates formal internal and NIOSH review comments. Constitutes a total rewrite or the document.
Revised August 20, 2008 [1.8 MB (87 pages)]
**Page Change Revision Includes:** Approved page change revision made to include SEC-00075 on pages 10 and 11 in Section 1.3 where Sections 1.3.1, 1.3.2 and Table 1-2 were added. NIOSH required language was revised on pages 9 and 10 in Section 1.1. Added reference on page 74. Incorporates formal internal review comments. As a result of formal internal review, editorial changes were made on the following pages: 8 in Acronyms and Abbreviations Section; 11 (Table 1-2), 25 (Table 4- 1), 30 (Table 4-2), 32 (Table 4-6), 34 (Table 5-1), 36 (Table 5-2 and 5-3), 48 (Table 5-6), 51 (Table 6-1), in Sections 1.3, 4.2, 4.4, 4.7, 5.0, 5.1, 5.4, and 6.2. SEC changes occurred on pages 11 (Table 1-1), 32, 33, 37-39 (Table 5-4), 40, 41, 46 (Table 5-5), 49 (Table 5-7), 50, 57, 60, 61 (Table 6-4), 63 (Figure 6-2) in Sections 1.3, 4.7, 5.0, 5.1, 5.2, 5.3, 5.5, 6.1, and 6.3. Incorporates formal NIOSH review comments on page 2 (Publication Record), 30 (Table 4-2), 41, 48 (Table 5-6), and 74 in Sections 4.4, 5.2, 5.4, and Reference Section. References were updated on pages 10, 11, 19, 29, 30, 32, 33, 37, 40, 41, 46, 47, 50-52, 57-62, 64, 65, 70, 74-76 in Sections 1.3, 2.3, 4.4, 4.7, 5.0, 5.1, 5.2, 5.4, 6.1, 6.2, 6.3, 6.4, 7.0, and Reference Section. No sections were deleted.
Approved June 22, 2007 [1 MB (84 pages)]
Ames Laboratory SEC Petition Evaluation Report, Rev. 0 (January 1, 1942 through December 31, 1970) [332 KB (49 pages)]
            June 9, 2011
							
					
							Last Reviewed:  June 30, 2022						Source: 	National Institute for Occupational Safety and Health
					Facebook
        Twitter
        LinkedIn
        Syndicate homeRadiation Dose ReconstructionAbout DCASThe Act/EEOICPADose Reconstruction (DR)plus iconDataplus iconSourcesFormats & TypesSensitive DataWork History                            Phone CallData Search and Capture EffortsMethodsProductionTechnical Documents Used in Dose ReconstructionsProgram Evaluation Reports and PlansQuality Assurance and Quality ControlSupport ContractorSoftware (IMBA)RECA ClaimsProbability of Causationplus iconCalculating PCNews & UpdatesNIOSH-IREP SoftwareSpecial Exposure Cohortplus iconSubmit a PetitionCheck Petition Statusplus iconSEC Status TableGet HelpResidual ContaminationAdvisory Boardplus iconPublic MeetingsSubcommittee and Work GroupsSEC Petition RecommendationsTechnical Support for the Review of NIOSH Dose Reconstruction ProgramReports from the Advisory Board's Technical Support ContractorTechnical Review Summaries from the Technical Support ContractorProceduresCorrespondenceWork Site InformationPublications & ProductsProgram ReviewsReports to CongressPolicies, Procedures, and GuidelinesNIOSH Public DocketRelated Program LinksContact UsHELPplus iconHelp A – ZAccessibilityAcronymsFrequently Asked Questions (FAQs)plus iconThe ActCase ConcernsClaimant CorrespondenceConflict or BiasDose ReconstructionFreedom of Information Act (FOIA)National Defense Authorization ActNIOSH-IREPProbability of CausationResidual Contamination ReportResponsibilities under Subtitle B of EEOICPA (The Act)Special Exposure CohortTechnical DocumentsWork History Phone CallGlossary Follow NIOSH Facebook
Pinterest
Twitter
YouTube
 NIOSH Homepage NIOSH A-Z
Workplace Safety & Health Topics
Publications and Products
Programs
Contact NIOSH


About CDC
					Contact Us
					800-232-4636
 Facebook Twitter Instagram LinkedIn Youtube Pinterest Snapchat
 CONTACT CDC
				Contact Us
							Call 800-232-4636
							Email Us
			ABOUT CDC
				About CDC
							Jobs
							Funding
			POLICIES
				Accessibility
							External Links
							Privacy
							Policies
							No Fear Act
							FOIA
							OIG
							Nondiscrimination
							Vulnerability Disclosure Policy
			CONNECT WITH US
				Facebook
								Twitter
								Instagram
								LinkedIn
							Youtube
								Pinterest
								Snapchat
								Email
			LANGUAGES
				Español
							繁體中文
							Tiếng Việt
							한국어
							Tagalog
							Русский
							العربية
							Kreyòl Ayisyen
							Français
							Polski
							Português
							Italiano
							Deutsch
							日本語
							فارسی
							English


U.S. Department of Health & Human Services
			Accessibility
			External Links
			Privacy
			Policies
			No Fear Act
			FOIA
			Nondiscrimination
			OIG
			Vulnerability Disclosure Policy
			USA.gov


Exit Notification / Disclaimer Policy Close
 Links with this icon  indicate that you are leaving the CDC website. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
				Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
				You will be subject to the destination website's privacy policy when you follow the link.
				CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. Website Disclaimers
 Cancel Continue