No Storm Water Management Permit shall be required for any existing use of natural channels within the City for such beneficial purposes as are approved by the Office of the State Engineer for the State of Utah, nor any water rights established by the State Engineer or by any court of competent jurisdiction. No provision contained in this Title shall be construed to interfere with or permit the use, allocation or reallocation of water rights, or of any culinary water collection or distribution system, or waters and facilities used in connection with such rights or systems.