List 1 of rivers and water bodies (environment code L214-17) of the department of Orne.

An Ecological Continuity Classification corresponds to all or part of a course or channel identified in a stop taken by the Basin Coordinating Prefect pursuant to Article L.214-17 of the Environmental Code. The classification into list 1 (1° of § I of Article L. 214-17 of the Environmental Code) is intended to protect certain rivers from degradation and allows a long-term preservation objective to be displayed. They cancel, replace, and complete the classification as reserved rivers under the 1919 Act. List 2 (2° of § 1 of Article L. 214-17 of the Environmental Code), annuls, replaces and completes the concept of ‘rivers classified’ under L. 432-6 of the Environmental Code, must make it possible to ensure that existing works are quickly compatible with the objectives of ecological continuity. The founding regulatory text of an Ecological Continuity Classification is the classification decree signed by the Basin Coordinating Prefect in accordance with the procedure laid down in Article R.214-10 of the Environmental Code providing for departmental consultation of classification projects before validation by the Basin Coordinating Prefect. The classification of rivers in respect of the crossing of migrants is carried out under 2° (list 2) of Article L.214-17-I of the Environmental Code for the criterion “courses for which it is necessary to ensure the circulation of migratory fish (amphihalins or not)”.