10 CFR §60.72

1. (a)DOE shall maintain records of construction of the geologic repository operations area in a manner that ensures their useability for future generations in accordance with § 60.51(a)(2).
2. (b)The records required under paragraph (a) shall include at least the following:
   1. (1)Surveys of the underground facility excavations, shafts, and boreholes referenced to readily identifiable surface features or monuments;
   2. (2)A description of the materials encountered;
   3. (3)Geologic maps and geologic cross sections;
   4. (4)Locations and amount of seepage;
   5. (5)Details of equipment, methods, progress, and sequence of work;
   6. (6)Construction problems;
   7. (7)Anomalous conditions encountered;
   8. (8)Instrument locations, readings, and analysis;
   9. (9)Location and description of structural support systems;
   10. (10)Location and description of dewatering systems; and
   11. (11)Details, methods of emplacement, and location of seals used.