Kernrechtsfrage
How should security-measure costs be allocated when several polluters caused oil overflows that may affect waters?
Extrahierter Entscheid
The authority must determine ex officio each polluter's share of responsibility and may seek reimbursement only in proportion to the responsibility attributed to each co-obligor in their internal relations.
Extrahierte Begründung
For violations of the water and environmental protection rules caused by a spill capable of altering waters, the authority must first address the polluter by conduct and then, subsidiarily, the polluter by situation. Cost reimbursement follows the internal apportionment of responsibility under the Civil Code rules on co-obligors.