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United States
Atomic Energy Comission
Washington, De Ce
July 18, 1952
Mr. Seth Woodruff
Las Vegas Operations Office
Mercury, Nevada
20833
Dear Seth:
This will confirm Colonel Hartgering's letter to you of
25 June 1952, in which the permissible radiation dosage for
the roll-up operations was specified as 3 roentgens, gamma
only, for a ten-week period and with areas showing greater
than 10 milliroentgens per hour being found as contaminated
and requiring presence of a monitor for film badges and the
other accessories for work in contaminated areas,
Sincerely yours,
/sf/
John
John C. Bugher, M.D. we
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Director, Division of, © 9 9 oe. *
Biology & Medicine °
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