62 © The Containment of Underground Nuclear Explosions
Figure 4-2—Controtlable and Uncontroilable Areas
Uncentroliable .
Controliable
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Nellis Air Farce Base La
range
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Sealetagalerie oo co lavetye 8
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rhe
a ve oe haaannnaby es
.
The controliabie area is the region within which remedial actions are considered feasible.
SOURCE: Modified from Environmental Protection Agency.
170 mR/year level. [f 0.17 mR/year (the maximum
extemal exposure allowed during a 12-month period
for an uncontrolled population) or moreis predicted
to fall outside the controllable area, the test will be
postponed. Within the predictions shown in tigur
4-3, the test could be conducted if EPA monito:
were prepared to be at each of the ranches. mine
and other populated areas within the dispersic