US Codex
C.F.R.
Browse by date

View an earlier version

Latest
Current
1 year ago
Sep 3, 2025
5 years ago
Sep 3, 2021
Browse all versions by date
Notes

10 C.F.R. §§ 960.5-2-8–960.5-2-11

4 sections in range

§960.5-2-8. Surface characteristics.

10 C.F.R. § 960.5-2-8

(a)
Qualifying condition. The site shall be located such that, considering the surface characteristics and conditions of the site and surrounding area, including surface-water systems and the terrain, the requirements specified in § 960.5-1(a)(3) can be met during repository siting, construction, operation, and closure.
(b)
Favorable conditions.
(1)
Generally flat terrain.
(2)
Generally well-drained terrain.
(c)
Potentially adverse condition. Surface characteristics that could lead to the flooding of surface or underground facilities by the occupancy and modification of flood plains, the failure of existing or planned man-made surface-water impoundments, or the failure of engineered components of the repository.
Notes, amendments, and revision history

Authority

Authority: 42 U.S.C. 2011 et seq., 42 U.S.C. 7101 et seq., 42 U.S.C. 10101 et seq.

Source

Source: 49 FR 47752, Dec. 6, 1984, unless otherwise noted.

§960.5-2-9. Rock characteristics.

10 C.F.R. § 960.5-2-9

(a)
Qualifying condition. The site shall be located such that (1) the thickness and lateral extent and the characteristics and composition of the host rock will be suitable for accommodation of the underground facility; (2) repository construction, operation, and closure will not cause undue hazard to personnel; and (3) the requirements specified in § 960.5-1(a)(3) can be met.
(b)
Favorable conditions.
(1)
A host rock that is sufficiently thick and laterally extensive to allow significant flexibility in selecting the depth, configuration, and location of the underground facility.
(2)
A host rock with characteristics that would require minimal or no artificial support for underground openings to ensure safe repository construction, operation, and closure.
(c)
Potentially adverse conditions.
(1)
A host rock that is suitable for repository construction, operation, and closure, but is so thin or laterally restricted that little flexibility is available for selecting the depth, configuration, or location of an underground facility.
(2)
In situ characteristics and conditions that could require engineering measures beyond reasonably available technology in the construction of the shafts and underground facility.
(3)
Geomechanical properties that could necessitate extensive maintenance of the underground openings during repository operation and closure.
(4)
Potential for such phenomena as thermally induced fracturing, the hydration and dehydration of mineral components, or other physical, chemical, or radiation-related phenomena that could lead to safety hazards or difficulty in retrieval during repository operation.
(5)
Existing faults, shear zones, pressurized brine pockets, dissolution effects, or other stratigraphic or structural features that could compromise the safety of repository personnel because of water inflow or construction problems.
(d)
Disqualifying condition. The site shall be disqualified if the rock characteristics are such that the activities associated with repository construction, operation, or closure are predicted to cause significant risk to the health and safety of personnel, taking into account mitigating measures that use reasonably available technology.
Notes, amendments, and revision history

Authority

Authority: 42 U.S.C. 2011 et seq., 42 U.S.C. 7101 et seq., 42 U.S.C. 10101 et seq.

Source

Source: 49 FR 47752, Dec. 6, 1984, unless otherwise noted.

§960.5-2-10. Hydrology.

10 C.F.R. § 960.5-2-10

(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.
Notes, amendments, and revision history

Authority

Authority: 42 U.S.C. 2011 et seq., 42 U.S.C. 7101 et seq., 42 U.S.C. 10101 et seq.

Source

Source: 49 FR 47752, Dec. 6, 1984, unless otherwise noted.

§960.5-2-11. Tectonics.

10 C.F.R. § 960.5-2-11

(a)
Qualifying Conditions. The site shall be located in a geologic setting in which any projected effects of expected tectonic phenomena or igneous activity on repository construction, operation, or closure will be such that the requirements specified in § 960.5-1(a)(3) can be met.
(b)
Favorable Condition. The nature and rates of faulting, if any, within the geologic setting are such that the magnitude and intensity of the associated seismicity are significantly less than those generally allowable for the construction and operation of nuclear facilities.
(c)
Potentially Adverse Conditions.
(1)
Evidence of active faulting within the geologic setting.
(2)
Historical earthquakes or past man-induced seismicity that, if either were to recur, could produce ground motion at the site in excess of reasonable design limits.
(3)
Evidence, based on correlations of earthquakes with tectonic processes and features, (e.g., faults) within the geologic setting, that the magnitude of earthquakes at the site during repository construction, operation, and closure may be larger then predicted from historical seismicity.
(d)
Disqualifying Condition. A site shall be disqualified if, based on the expected nature and rates of fault movement or other ground motion, 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.
Notes, amendments, and revision history

Authority

Authority: 42 U.S.C. 2011 et seq., 42 U.S.C. 7101 et seq., 42 U.S.C. 10101 et seq.

Source

Source: 49 FR 47752, Dec. 6, 1984, unless otherwise noted.