Kernrechtsfrage
Whether the appellants had standing under Art. 89 BGG to challenge the sludge disposal plan
Extrahierter Entscheid
The appellants were not sufficiently affected in a legally protected interest or in important public interests to bring the appeal.
Extrahierte Begründung
They acted as public bodies performing public tasks; the dispute concerned implementation of a cantonal disposal concept and mainly economic consequences. Such interests were too weak and not comparable to private-law affectedness.