62 © The Containment of Underground Nuclear Explosions Figure 4-2—Controilabie and Uncontroilable Areas Pe RSS sho. tr empty Te : Controllable --——-Nellis Air Force Base range L L -— 7 4 ~ res er Hig BER gt re 24 at a lif wee Ae 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