Questione giuridica chiave
Whether the federal appeal was admissible against the cantonal judgment ordering a preliminary investigation of a contaminated site.
Decisione estratta
The judgment was an interlocutory decision, not an end decision or appealable partial decision; the appeal was therefore admissible only under Article 93 BGG.
Motivazione estratta
The order on preliminary investigation did not finally determine remediation duty or costs; it merely served fact-finding for possible later measures.