U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
(a) Qualifying condition. The site shall be located such that the geohydrologic setting of the site will (1) be compatible with the activities required for repository construction, operation, and closure; (2) not compromise the intended functions of the shaft liners and seals; and (3) permit the requirements specified in § 960.5-1(a)(3) to be met.
(b) Favorable conditions. (1) Absence of aquifers between the host rock and the land surface.
(2) Absence of surface-water systems that could potentially cause flooding of the repository.
(3) Availability of the water required for repository construction, operation, and closure.
(c) Potentially adverse condition. Ground-water conditions that could require complex engineering measures that are beyond reasonably available technology for repository construction, operation, and closure.
(d) Disqualifying condition. A site shall be disqualified if, based on expected ground-water conditions, it is likely that engineering measures that are beyond reasonably available technology will be required for exploratory-shaft construction or for repository construction, operation, or closure.