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Soil Cleanup Planning

which they considered technically unsupportable, economically unsound,

and environmentally counterproductive. It recommended that the soil

veanup plans, which had been developed over the past 5 years and were

aver then being implemented, be reviewed again. !8
THE BAIR COMMITTEE

As a result of the unsigned position paper, ERDA convened a panel of

scientists at ERDA-NV on 15-17 August 1977 to review:
a, AEC recommendations for cleanup and rehabilitation of Enewetak

and, specifically, the criteria for plutonium (Pu-239) in soil.

b. Environmental and health implications and long-term monitoring
requirements for crater disposal of contaminated soil and debris on
Runit.
The panel was chaired by Dr. W. J. Bair of Battelle-Pacific Northwest
Laboratory and subsequently became known as the Bair Committee. It
included scientists from several disciplines. Two of the members had
attended the Marshall Island Workshop. Observers and guests included
most of the ERSP management, DNA’s Deputy Director for Operations,

Major General William E. Shedd, BG Tate; and Colonel Charles J. Treat,
USA. Field Command's Special Assistant for Enewetak Operations. !9

Briefings were presented by ERDA representatives on that agency’s
participation in developing the soil cleanup guidelines and the policy
decisions to which the unsigned position paper objected. DNA also
presented briefings on the implementation of the AEC guidelines in the

Environmental Impact Statement (EIS).2° During the course of these
briefings, several critical issues surfaced.

THE CRITERIA ISSUE
The AEC Task Group had recommended 400 pCi/g as a cleanup
criterion because it had been shown, conservatively, to be equivalent to
the maximum permissible concentration (MPC) in air for radiologically
unrestricted areas.2! Accordingly, a nonoccupationally exposed individual
could remain continuously in such concentrations and not exceed the
permissible radiation dose rate limits: 1.5 rem/yr to lung or 3 rem/yr to
bone. As is frequently done, the AEC Task Group introduced a factor of

ten safety margin and recommended 40 pCi/g as a criterion below which

no cleanup was required. The Task Group recommended a factor of two
only (safety margin) and dose limits for whole body.22 The corresponding
dose at 40 pCi/g thus would be 10 percent of that permitted for an

Select target paragraph3