Kernrechtsfrage
Whether the VBS had to bear 30% of the remediation costs for the shooting range site.
Extrahierter Entscheid
Yes. The Federal Court upheld the allocation of 30% to the VBS.
Extrahierte Begründung
Under Art. 32d USG, all identified polluters bear costs according to their contribution; the canton could estimate the military’s contribution on the basis of the most probable evidence, including troop presence and later documented shooting activity. The absence of exact proof for earlier decades did not trigger the residual-cost rule of Art. 32d(3) USG because all polluters were identified.