Appendix C - Code Assessment

Flood Hazard Overlay Code



Excavation and filling for operational works only occur      Filling, other than accessways:                            The proposed development does not involve, and will
where they:                                                                                                             not consequently require, filling or excavation works.

a)   result in the protection, rehabilitation and repair     a)   does not extend more than the equivalent of 3
     of ecologically important areas, watercourses,               metres around the main building, measured from
     drainage lines and wetlands;                                 the outer walls of the building;
b)   do not adversely impact on the overall hydrology,       b)   is limited to a maximum of 500m2; and
     hydraulics and flood capacity of a waterway;
                                                             c)   does not impact on the local drainage of adjoining
c)   do not directly, indirectly or cumulatively cause            properties.
     adverse impacts external to the site;
d)   do not cause increased flooding, which adversely
     affects the safety or use of any land upstream or
     downstream;
e)   do not cause ponding of water on the site or nearby
     land;
f)   do not result in a reduction in flood storage
     capacity;
g)   do not adversely affect the flow of water in any
     overland flow path; and
h)   do not adversely affect the privacy or visual amenity
     of surrounding property.

Editor’s Note— The Earthworks Code sets out further
requirements for earthworks.
Hazardous materials
PO11                                                         AO11.1                                                     AO11.1 – Not Applicable
Development ensures that public safety and the               Materials manufactured or stored on site are not
environment are not adversely affected by avoiding the       hazardous or noxious, or do not comprise materials that
release of hazardous materials into flood waters and the
                                                             may cause a detrimental effect on the environment if
environment.
                                                             discharged in a flood event.

                                                             OR

                                                             AO11.2
                                                             If a DFE is adopted, structures used for the manufacture
                                                             or storage of hazardous material are located above