All service charges shall be deposited in the Surface Water Management Fund which fund is hereby created to be used only for the purpose of paying all or any part of the cost and expense of providing surface water management services, or to pay or secure the payment of all or any portion of any issue of general obligation or revenue bond issued for that purpose. Monies in the fund not needed for immediate expenditure shall be invested for the benefit of the Surface Water Management Fund but sufficient funds shall be transferred no later than the end of the fiscal year in which they were first appropriated for capital projects appropriated in the surface and stormwater management construction fund. The program’s funds balances and other financial resources will be invested conservatively to match strong security of principal with market rates of return. For investment purposes, the Finance Director is hereby designated the Fund Manager. (Ord. 37-02 § 2 (9.08.110))