; and (ii) submit to the non-Federal entity a report describing the results of the study under clause (i). (C) Remediation Before transferring any property to the non-Federal entity under this section, the Secretary shall comply with the applicable requirements of section 120(h) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 ( 42 U.S.C. 9620(h) ). (D) Refusal by non-Federal entity (i) In general On completion and review by the non-Federal entity of the study under subparagraph (B), the non-Federal entity may elect to refuse any conveyance or easement under paragraph (1) or (2) of subsection (b), respectively. (ii) Treatment An election under clause (i)— (I) shall be at the sole discretion of the non-Federal entity; (II) may be based on disapproval by the non-Federal entity of the environmental condition of a tract to be conveyed or subject to an easement; and (III) shall be made by the non-Federal entity by not later than the date that is 30 days after the date of submission of the report under subparagraph (B)(ii). (3) Reservation of rights The Secretary may reserve and retain from any conveyance under this section a right-of-way or any other right as the Secretary determines to be necessary for the operation and maintenance of the authorized Federal channel along the Ohio River. (4) Dredged material placement activities The Secretary shall— (A) notify and coordinate with the non-Federal entity and relevant stakeholders before carrying out any dredged material placement activities after the date of the conveyances under this section; and (B) in carrying out a dredged material placement activity under subparagraph (A), act in accordance with Engineer Manual EM 1110–2–5025 (or a subsequent version of that manual). (e) Treatment Completion of the conveyances under this section shall satisfy all obligations of the Secretary with respect to the property described in subsection (c)(1)(A) under— (1) section 306101 of title 54, United States Code