(Added by Ordinance No. 160515 effective Mar. 28, 1988.)  The Sewer System Debt Redemption Fund is hereby made a part of the Code of the City of Portland, Oregon, for the receipt and expenditure of monies associated with the retirement of debt incurred by the sewer system.  Money in the Sewer System Debt Redemption Fund may be commingled with other City money for investment purposes.