review the services of the non-Federal interest or commercial entity to ensure that the services are consistent with the authorized purposes of the project concerned;

ensure that the non-Federal interest or commercial entity will indemnify the United States for, or has entered into an agreement approved by the Secretary to address, any adverse impact to the dam as a result of such services; and

require the non-Federal interest or commercial entity, prior to initiating the services and upon completion of the services, to conduct sediment surveys to determine the pre- and post-services sediment profile and sediment quality.