CHAIRMAN:

Paul L. Ziemer, Ph.D.
Lafayette, Indiana

MEMBERS:

Bradley P. Clawson
Rexburg, Idaho

Michael H. Gibson
Franklin, Ohio

Mark A. Griffon
Salem, New Hampshire

James E. Lockey, M.D.
Cincinnati, Ohio

James M. Melius, M.D., Ph.D.
Albany, New York

Wanda I. Munn
Richland, Washington

John W. Poston, Sr., Ph.D.
College Station, Texas

Robert W. Presley
Clinton, Tennessee

Genevieve S. Roessler, Ph.D.

Elysian, Minnesota

STAFF:
EXECUTIVE SECRETARY:

Lewis V. Wade, Ph.D
Washington, DC

COMMITTEE MANAGEMENT :

LaShawn D. Shields
Atlanta, Georgia

ADVISORY BOARD ON RADIATION AND WORKER HEALTH
4676 Columbia Parkway, MS: He
Cincinnati, Ohio 45226 CEI Pa
(613) 533-6825 VED NIOSH-op

January 2, 2007

The Honorable Michael O. Leavitt
Secretary of Health and Human Services
Department of Health and Human Services
200 Independence Avenue, S.W.
Washington, DC 20201

Dear Mr. Secretary:

The Advisory Board on Radiation and Worker Health (The Board) has
evaluated SEC Petition-00067 concerning workers at the Allied Chemical
Corporation plant in Metropolis, Illinois under the statutory requirements
established by EEOICPA and incorporated into 42 CFR Sec. 83.13 and 42
CFR Sec. 83.14. The Board respectfully recommends a Special Exposure
Cohort (SEC) be accorded to all Atomic Weapons Employees who were
monitored, or should have been monitored for exposure to ionizing
radiation, while working at Allied Chemical Corporation plant in
Metropolis, Illinois for a number of work days aggregating at least 250
work days during the period of January 1, 1959 through December 31,
1976, or in combination with work days within the parameters established
for one or more other classes of employees included in the SEC. The
Board notes that although NIOSH found that they were unable to
completely reconstruct radiation doses for these employees, they believe
that they are able to reconstruct external dose and components of the
internal dose (that from uranium), and therefore individuals with non-
presumptive cancers may be considered for partial dose reconstructions.

This recommendation is based on the following factors:

e People working in the Allied Chemical Corporation plant in
Metropolis, Illinois were exposed to radiation while working on the
conversion of uranium ore concentrates to uranium hexafluoride. In
reviewing the available monitoring and other data for these
operations, NIOSH found that it did not have access to sufficient
information, including personnel dosimetry, workplace monitoring
data, or sufficient process and radiological source information, that
would allow it to estimate with sufficient accuracy the internal doses
to non-uranium radionuclides for the time period from January 1,
1959 through December 31, 1976. The Board concurs with this
determination.


The Honorable Michael O. Leavitt January 2, 2007

e NIOSH determined that health may have been endangered for the workers exposed to radiation
in the Allied Chemical Corporation plant in Metropolis, Illinois within the time period in
question. The Board concurs with this determination.

Enclosed is supporting documentation from the recent Advisory Board Meeting held in Naperville,
Illinois where this special exposure cohort was discussed. If any of these items are unavailable at this
time, they will follow shortly.
Sincerely,
Zz ee
Paul L. Ziemer, Ph.D.
Chairman

Enc.