PPR perimeter of the river Oudan and AFFLUENTS — Loire

This dataset describes any perimeter delimiting an area influenced by the presence of a PPR: the scope of risk exposure corresponds to the scope regulated by the approved RPP. This approved perimeter is a utility easement (PM1 for PPRNs). The boundaries thus defined are of an official nature and shall be effective from a defined date.本数据集涵盖所有用于划定受PPR存在影响的区域的边界：其中风险暴露范围与经核准的RPP所规范的范围完全一致。该经核准的边界属于公用役权（针对PPRNs对应PM1）。如此划定的边界具备官方属性，且将自指定日期起生效。