62 © The Containment of Underground Nuclear Explosions
Figure 4-2—Controilabie and Uncontroilable Areas
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The controilabie area is the region within which remedial actions are considered feasible.
SOURCE: Modified from Environmental Protection Agency.
170 mR/year level. ff 0.17 mR/year (the maximum
postponed. Within the predictions shown in figure
for an uncontrolled population) or moreis predicted
to fail outside the controllable area, the test will be
were prepared to be at each of the ranches. mines.
and other populated areas within the dispersion
external exposure allowed during a 1 2-month period
4-3, the test could be conducted if EPA monitors