Nuclear Energy Ordinance
(NEO)

¹ In the pi­lot in­stall­a­tion, the be­ha­viour of waste, back­fill ma­ter­i­al and host rock must be mon­itored un­til the ex­piry of the mon­it­or­ing peri­od. Dur­ing mon­it­or­ing, data must be col­lec­ted in or­der to con­firm long-term safety with a view to clos­ure.

² The ob­tained find­ings must be trans­fer­able to the pro­cesses go­ing on in the main sec­tion. They form the basis for the de­cision on the clos­ure of the re­pos­it­ory.

³ The fol­low­ing prin­ciples must be ob­served in con­nec­tion with the design of the pi­lot sec­tion:

a.

The geo­lo­gic­al and hy­dro-geo­lo­gic­al con­di­tions must be com­par­able to those of the main sec­tion.

b.

The pi­lot sec­tion must be spa­tially and hy­draul­ic­ally sep­ar­ated from the main sec­tion.

c.

The con­struc­tion of the pi­lot sec­tion and the em­place­ment pro­ced­ure of waste and back­fill ma­ter­i­al must cor­res­pond to those of the main sec­tion.

d.

The pi­lot sec­tion must con­tain a small but rep­res­ent­at­ive quant­ity of waste.