When these plumbing flood rules apply

General. The provisions contained herein are applicable to the construction of all new plumbing systems, renovations and major alterations, additions or reconstruction of existing plumbing systems within the special flood hazard area as delineated on the Flood Boundary and Floodway Maps and Flood Insurance Rate Maps, and any amendments by the Federal Emergency Management Agency, on file with the Department of Public Works, County of Kaua'i.These provisions shall also apply to development drainage facilities outside the special flood hazard areas which are determined to be within a floodway area or a flood fringe area in accordance with Article 1, Chapter 15, of the Kaua'i County Code 1987, as amended.Existing Plumbing Systems, Any plumbing system thereof which was lawful before the effective date of the ordinance codified in this Article but which is not in conformity with the provisions of this Article may be continued subject to the provisions of Kaua'i County Code 1987, as amended.Exemptions. The provisions contained herein shall not apply:To plumbing systems serving buildings and structures exempted from the special flood hazard area provisions under Article 1, Chapter 15, Kaua'i County Code 1987, as amended.To plumbing systems serving building and structures which have been granted a Flood Hazard Variance under provisions of Article 1, Chapter 15, Kaua'i County Code 1987, as amended.