As the years passed, the nuclear testing program ended.

Other

programs took its place, adding their changes to the Atoll's environmente-new structures, topographical features, etc.--some of these over
the pre-existing nuclear test structures.
In 1973, 15 years after the last nuclear detonation, the Atoll is
quite different from what it was prior to the testing program.

It is

significantly dirferent from what it was when the program ended.

This

environment, now somewhat reclaimed by nature and changed by man, was
investigated for the precleanup survey.

Recent information and experience with similar problems were considered from previous radiological surveys, the cleanup of Bikini Atoll,
and very cursory surveys of Eniwetok Atoll in July 1971 and May 1972.
Considering the historical situation outlined above, the purpose of the

precleanup survey and the need for information which would be required to
evaluate the present conditions, a comprehensive approach was taken to
the soil and terrestrial radiation survey problem.
The resulting soil collection plan was developed by 0. D. T. Lynch,

Jr., AEC/NV, with the generous and able assistance of Drs. Richard
Gilbert and Lee Eberhart, Batelle Northwest (BNW).

It was reviewed by

Drs. Seymour, Held, Nelson, Welanda, and Shell of the University of
Washington and Mr. Tommy MecrawypoD/iml.) The field effort was executed

by Mr. O. D. T. Lynch, Jr., AEC/NV, and Dr. Paul H. Gudikson, LLL Health
and Safety, Livermore, with the assistance of Messrs. Charles F. Costa
and William E. Moore of the Environmental Protection Agency (EPA), Las
Vegas, and monitors from EPA and Eberline Instrument Corporation, Santa
Fe.

Thermoluminescent Dosimeters (TLD) were fielded under the direction

Select target paragraph3