(Added by Ordinance No. 147298, effective February 28, 1979.) The System Development Charge Sinking Fund is hereby created. Funds obtained from the issuance of General Obligation Bancroft Bonds issued pursuant to statute and authorized by the City Council for this purpose shall be placed in this Fund and expended only for payments duly authorized for construction or expansion of systems development. All proceeds from the collection of Bonded Assessments, realized from System Development Charge Assessments with respect to such General Obligation Bancroft Bonds are issued, shall be placed in the fund to be applied to the call and payment of General Obligation Bancroft Bonds pursuant to the call schedule set forth in the offer and as provided by statute.