(a) Any new water system and the replacement, repair or changes to an existing water system shall have sufficient structural strength and be so assembled as to prevent any infiltration or siphoning of foreign waters into the system at external hydraulic pressures, equivalent to a vertical column of water extending from the lowest elevation point of the system to the regulatory flood protection elevation.
(b) Any installation, repair or change to any portion of the water system must be approved by the Lucas County Inspection Department.