(A) Eighty percent (80%) of the retained amounts, together with interest earned thereon, shall be used solely for the eligible cost of the expansion or reconstruction of treatment works associated with the project and necessary to meet the requirements of the Federal Act and the State of Illinois.
(B) (1) The City of Mt. Vernon, prior to commitment of the retained amounts, shall obtain written approval of the Federal Environmental Protection Agency for any expansion or reconstruction.
(2) The remainder of the retained amounts may be used for such expenditures as the City deems appropriate.
(Prior Code, Art. 16, § 16.7(u))