... System Revenue Refunding Bonds, Series 2015A. The bonds will be sold the week of March 16 via negotiation. Security: Series 2015 and the outstanding bonds: payable from a first-lien pledge on the net revenues of the water system (the system); series 2007 and 2008 bonds: additionally secured by impact fees. Purpose: To refund a portion of the system's series 2007 bonds and pay costs of issuance. Final Maturity: Sept. 1, 2043....