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Residential and Retirement Living
water consumption
In our Residential business, water is
typically used by civil and landscape
contractors during site development
and construction. This includes water
for site dust management, road laying
and landscape watering. Our preference
is to use non-potable water for these
processes, but when this is not available,
or too expensive, potable water is used.
While potable water used on our projects
is typically sourced from reticulated
potable water supplies provided by
local water authorities, non-potable
water may be supplied via a reticulated
recycled water supply or sourced from
water runoff captured on-site in basins
or water tanks, or extracted from rivers
under licence agreement with state or
local governments.
Our water consumption also includes
project site and sales offices that use
potable water and apartment projects
that typically access municipal or city
water suppliers for construction usage.
The sustainability policies of our
Residential and Retirement Living
businesses include requirements for water
management and conservation such as
the need to:
• Complete a general assessment of
environmental conditions including
contamination, water and ground
water, and heritage,
• Apply water-sensitive urban design
principles to the public domain,
• Minimise irrigation using potable
water in the public domain or for
water features,
• Install water-efficiency fixtures and
fittings for our built dwellings.
This year we have made substantial
improvements to our water data collection
and analysis processes, which has
resulted in a substantial variation to the
results when compared to FY09. We
have not included FY09 data in this report
because of these variations.
Over the past 12 months we have
provided training to data owners and we
have improved our methods for collecting
the data, which has increased the
accuracy of the data. This, together with
the separation of our water use and our
contractors’ water use, has contributed
to a greater understanding of where water
is being used in our business and where
we can reduce our usage. Over the next
12 months we will continue to refine our
data collection processes and we aim to
trial water-efficiency targets for relevant
projects in FY11.
Residential and Retirement Living water metrics
Water consumption (kL)
Total
FY10
Potable
FY10
Non-potable
FY10
Residential 55,464 5,429 50,035
Retirement Living 1,948 1,648 300
Contractors – Residential 15,483,025 432,850 15,050,175
Contractors – Retirement Living 104,357 104,168 189
Total 15,644,794 544,094 15,100,699
Boundary: Residential Communities, Apartments and Retirement Living water
consumption results are provided by collecting and collating water use from invoices.
Where invoices are unavailable or extend across financial years, estimates are
provided for the relevant periods. Water consumption by contractors operating on our
development sites is compiled using invoice data and estimates, supplied by contractors
through monthly Health, Safety and Environment reports. Data has been reported
for 98 per cent of properties this year. These figures are based on a combination of
contractor estimates and invoice data.
Stockland Corporate Responsibility & Sustainability Report June 2010
87