There shall be created in the authorizing ordinance a statutory lien upon any such system or project and the appurtenances and extensions thereto so to be purchased, constructed, improved, enlarged, extended or repaired to and in favor of the holders of the bonds and each of them and to and in favor of the holders of the coupons of the bonds and each of them; provided, however, that when a borrower purchases, constructs, improves, enlarges, extends or repairs any system or project named in Section 6-21-50 such statutory lien may be created and declared to be upon the whole of such combined system or project with appurtenances and extensions thereto, if the governing body so determines.
S.C. Code § 6-21-330