Kernrechtsfrage
Whether the appeal against the cantonal return order was admissible as an interim decision under Art. 93 BGG
Extrahierter Entscheid
The return order was an interim decision; neither irreparable harm nor an immediate final decision saving substantial evidence-taking was shown.
Extrahierte Begründung
The challenged ruling did not finally determine any duty to prepare or finance remediation. The alleged disadvantages were mainly delay and additional effort, which are insufficient. The remaining inquiries concerned only a narrow border area and did not justify immediate federal review.