Nuclear Energy Ordinance
(NEO)

¹ When clos­ing a deep geo­lo­gic­al re­pos­it­ory, its own­er must back­fill all ex­cav­a­tions of the re­pos­it­ory and seal the sec­tions rel­ev­ant for long-term safety and se­cur­ity.

² The clos­ure pro­ject must de­scribe the fol­low­ing as­pects in par­tic­u­lar:

a.

the back­filling and seal­ing of the ac­cesses to the dis­pos­al areas;

b.

the trans­form­a­tion of the pi­lot sec­tion in­to a state suit­able for long-term safety;

c.

the back­filling and seal­ing of the ac­cesses to the re­pos­it­ory;

d.

the as­sur­ance of long-term safety.

³ When clos­ing the re­pos­it­ory, the own­er must in par­tic­u­lar en­sure:

a.

that no in­ad­miss­ible re­lease of ra­di­o­nuc­lides takes place via the back­filled ac­cesses;

b.

that the sep­ar­a­tion of wa­ter-con­duct­ing rock lay­ers ex­ist­ing pri­or to the con­struc­tion of the deep geo­lo­gic­al re­pos­it­ory is re­stored over the long-term;

c.

that the mark­ing of the deep geo­lo­gic­al re­pos­it­ory is per­man­ent.