Questione giuridica chiave
Whether the public-law appeal was admissible against the cantonal judgment.
Decisione estratta
The appeal was admissible as a public-law complaint against a final cantonal decision applying autonomous cantonal and communal law.
Motivazione estratta
The Court held that the cantonal and communal rules retained autonomy despite Arts. 3a and 60a LEaux, but the remedy remained purely cassatory and had to be constitutionally motivated.