Master Plan 2009 - Sydney Airport

fire services. Over the planning period, increased
development over the site will require additional or
upgrading of pumps and increased storage in both
the International and Domestic precincts.
Limited infrastructure exists in the Southern
sectors of the airport. As development occurs
in these sectors, supply infrastructure will be
installed.
A number of options are currently being
investigated to meet increasing demand. Sydney
Airport is finalising an Integrated Water Cycle
Management Strategy Study for a range of water
conservation and reuse options. The Strategy
is expected to include a recycled water scheme
consisting of Recycled Water Treatment Plants to
mine sewage from the International and Domestic
Precincts to supply non-potable water demands
around the Airport. Initially, the scheme is
proposed to supply the International Terminal for
toilet flushing, irrigation and cooling tower makeup
water. Ultimately, the Domestic precinct and
southern sectors will be supplied with recycled
water from a second Recycled Water Treatment
Plant that is proposed in the South-east sector.
Groundwater extraction was investigated as a
supplementary source for the proposed recycled
water supply but is not considered environmentally
appropriate or suitable at this time.
Sydney Airport is currently reassessing the
required potable water infrastructure upgrades in
the light of changes to future development and
the proposed recycled water supply. Options
being investigated include upgrades to pumps and
increased storage in both the International and
Domestic precincts, potable ring main connections
between sectors, and additional Sydney Water
connection points. The potential ring main
connections would improve security of supply to
both the International precinct and the southern
sectors.
Sydney Airport has invested in a remote water
monitoring system to assist in the management
of its water reticulation network to manage water
use and provide early leak detection in both the
International and Domestic Precincts. This system
is expected to be continually expanded over
time to include a wider network and all tenanted
areas. Valuable data and feedback of water
efficiency measures implemented to reduce water
consumption can then be obtained. As the system
expands over time new ideas and technology will
be explored to assist both SACL and tenants to
minimise water consumption and maximise water
use efficiency.
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9.5.3 Sewerage
Two sewerage networks currently operate at
Sydney Airport in the Domestic and International
precincts. These systems both involve gravity
mains servicing the developed areas feeding into
deep sewer pump stations. These pump stations
feed into the SWSOOS, which traverses the site.
As demand grows in these sectors, there will be a
need to augment the existing gravity mains, and to
increase the capacity of the existing sewer pump
stations and rising mains. Analysis undertaken by
SACL’s consultants indicate that the SWSOOS will
be able to accept the increased demand.
Developments in the South-east and South
South-east sectors require the installation of new
sewerage infrastructure reticulation networks.
9.5.4 Gas
Gas is supplied to facilities in the International and
Domestic precincts. The airport is well supplied
with a major high pressure gas main located along
the perimeter. This main is expected to be capable
of meeting demand over the planning period.
9.5.5 Stormwater
Extensive stormwater systems exist in the
Domestic and International precincts. In these
precincts, most of the areas that are expected
to be developed during the planning period
are already paved and served by stormwater
networks. These networks may require local
modifications as developments proceed.
Development of additional aircraft parking
positions at the Northern Pond area is likely to
require implementation of an integrated domestic
area stormwater strategy. This strategy may
involve the provision of various landside on-site
detention systems to control stormwater discharge
to the Northern Pond.
The South-east, South south-east and Southwest
sectors currently have minimal stormwater
infrastructure. Developments in these areas may
require the installation of additional stormwater
systems.
SACL has recently installed several Gross Pollutant
Traps and flame traps on major stormwater
outlets and are also implementing the following
development controls on new development to
mitigate any impacts on the stormwater systems:
• Roof water harvesting from new buildings
(SACL-owned) where a recycled water supply
is not available; and