; or (ii) of any additional information necessary for the Secretary to approve the request to conduct an evaluation. (3) Operational changes An operational change referred to in paragraph (2)(A) may include— (A) changes to seasonal pool levels; (B) modifying releases from the project; and (C) other changes included in the written request submitted under that paragraph that enhance the usage of the project to facilitate production of non-Federal hydropower, consistent with authorized project purposes. (4) Cost-share The eligible non-Federal interest shall pay 100 percent of the costs associated with an evaluation under this subsection, including the costs to prepare the report under paragraph (6). (5) Deadline The Secretary shall complete an evaluation under this subsection by the date that is not later than 1 year after the date on which the Secretary begins the evaluation. (6) Report On completion of an evaluation under this subsection, the Secretary shall submit to the Committee on Environment and Public Works of the Senate and the Committee on Transportation and Infrastructure of the House of Representatives a report on the effects of the operational changes proposed by the non-Federal interest and examined in the evaluation on the authorized purposes of the project, including a description of any negative impacts of the proposed operational changes on the authorized purposes of the project. (7) Savings provision Nothing in this subsection— (A) affects, modifies, or changes the authorized purposes of a Corps of Engineers project