Whenever necessary to meet the requirements of the Federal Water Pollution Control Act [33 U.S.C. 1251 et seq.], the Secretary, in consultation with the Administrator of the Environmental Protection Agency, may remove and remediate, as part of operation and maintenance of a navigation project, contaminated sediments outside the boundaries of and adjacent to the navigation channel.
The Secretary may remove and remediate contaminated sediments from the navigable waters of the United States for the purpose of environmental enhancement and water quality improvement if such removal and remediation is requested by a non-Federal sponsor and the sponsor agrees to pay 35 percent of the cost of such removal and remediation.
The Secretary may only remove and remediate contaminated sediments under subsection (b) in accordance with a joint plan developed by the Secretary and interested Federal, State, and local government officials. Such plan must include an opportunity for public comment, a description of the work to be undertaken, the method to be used for dredged material disposal, the roles and responsibilities of the Secretary and non-Federal sponsors, and identification of sources of funding.
Costs of disposal of contaminated sediments removed under this section shall be a  shared as a cost of construction.
Notwithstanding section 1962d–5b of title 42, for any project carried out under this section, a non-Federal sponsor may include a nonprofit entity, with the consent of the affected local government.