Key Issues Report of the Porirua City Council - Environmental ...

is the subject of NoR3. It is noted that the NZTA submitted to this plan change
in relation to areas affected by TGP and therefore an appeal may have been
lodged in relation to the proposed zoning of this land subsequent to the writing
of this report.
4.34 In Appendix A to this report are what are considered to be the relevant
Objectives and Policies of the District Plan that are relevant to TGP. From
these provisions, it is considered that the key environmental effects relevant to
TGP can be identified. The Objectives and Policies identified are all operative
and, at the time of writing of this report, there were no plan changes proposing
to either amend these or introduce additional provisions.
Silt and Sediment Effects of Earthworks
4.35 The District Plan contains a number of Objectives and Policies which
specifically address the effects of earthworks. This includes:
• Policy C3.2.1 which seeks to protect and enhance the amenity and character
of the residential resource through amongst other methods defining the
nature and scale of activities such as earthworks.
• Policy C4.2.2 which seeks to protect the natural and physical environment
from silt run-off by the removal of vegetation and earthworks in the Rural
Zone;
• Policy C4A.3.6.1 which seeks to control the extent of earthworks in the
Judgeford Hills Zone to an appropriate level on stormwater, geotechnical
stability and amenity values;
• Policy C9.1.15 which seeks to recognise, protect and enhance the existing
ecological and landscape features of the Whitby Landscape Protection area,
including Duck Creek through amongst other methods the management of
earthworks;
• Policy C10.1.5 which applies to all areas of Porirua City which seeks to
manage the effects of activities likely to result in increased levels of silt runoff
that could either directly or indirectly enter the coastal marine area.
4.36 It is also considered that there are indirect references to the effects of
earthworks within the Objectives and Policies including:
• Policy C4B2.3 which seeks to ensure that adverse environmental effects of
activities within the Public Open Space and Recreation Zones, including on
the environmental quality of adjoining areas and water-bodies and the coast,
are avoided, remedied or mitigated.
4.37 Due to the undulating topography within Porirua City, earthworks are a
commonly occurring activity associated with the development of land. TGP is
another example of this, albeit at a far bigger scale than what typically occurs
with other developments. It is recognised that the volume of earthworks
identified to occur as part of TGP is a reflection of the length of the route, the
topography of the land covered and one of the objectives of the project to
provide an alternative strategic link for Wellington that improves network
security.
4.38 As can be seen above, there are a number of provisions within the District Pan
which seek to ensure that the effects of earthworks are appropriately managed
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