In connection with each such investigation, report, and finding, the Secretary shall consult with the Secretary of Agriculture regarding participation in the proposed project by the Department of Agriculture under the authority of sections 590z–3 and 590z–4 of this title; and the Secretary shall also transmit to the President a report by the Secretary of Agriculture to the President on the participation, if any, proposed by the Department of Agriculture. The project shall be deemed authorized and may be undertaken pursuant to this subchapter if (1) the Secretary finds and certifies to the President that the project has engineering feasibility and that the water users probably can repay, in accordance with the requirements of section 590z–2 of this title an amount equal to or in excess of that part of the estimated cost allocated by him to irrigation to be met by expenditure of moneys appropriated pursuant to section 590z–10(1) of this title; and (2) the President has approved said report and findings and has found that services, labor, materials, easements, and other property, including money, for the construction of the project, should be made available to the Department of the Interior by the Works Projects Administration or other Federal agencies, to the extent found necessary by the Secretary to make up the difference between the estimated cost of project construction and (i) the part thereof to be met by expenditure of moneys appropriated pursuant to section 590z–10(1) of this title, together with (ii) such services, materials, money, easements, and other property as non-Federal agencies or parties have agreed to contribute and the Secretary has found acceptable under section 590z of this title.