Lake or streambed alteration agreements: limitation on mitigation measures: environment.

Existing law prohibits an entity from substantially diverting or obstructing the natural flow of, or substantially changing or using any material from the bed, channel, or bank of, any river, stream, or lake, or from depositing certain material where it may pass into any river, stream, or lake, without first notifying the Department of Fish and Wildlife of that activity, and entering into a lake or streambed alteration agreement if the department determines that the activity may substantially adversely affect an existing fish or wildlife resource. Existing law requires a final agreement to include reasonable measures necessary to protect the fish or wildlife resource.