A. All new or replacement water supply and sanitary sewage systems shall be designed to minimize or eliminate infiltration of floodwaters into the system and discharge from systems into floodwaters.

B. On-site waste disposal systems shall not be installed wholly or partially in a regulatory floodway, erosion setback, or as established by ADEQ, whichever is most restrictive.

C. On-site waste disposal systems shall be located to avoid impairment to them or contamination from them during flooding. ((O)21-06, 11/17/2021; (O)17-04, 04/05/2017; (O)05-35, 10/05/2005)