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Public Information Booklet
hazardous wastes will typically be directed to landfill. Recycling will be pursued where
possible. All hazardous materials will be recorded, tracked, segregated from other waste
streams and stored in suitable containers. Hazardous wastes will be disposed of via
existing, approved hazardous waste reception facilities.
Waste water management
Waste water management will be designed to minimise the risk of any environmental
harm and where possible, re-use and recycle of waste water streams. Discharges to
freshwater bodies will be limited to standard rainfall runoff from non-contaminated areas
of the facility, for example offices and accommodation blocks, which may drain to natural,
existing water channels within the lease site and exit to the sea. This discharge poses
negligible if any environmental risk.
The LNG plant will be designed and operated to ensure that all spills and leaks are
contained (within a bunded area) and contaminated storm water captured to ensure that
there will be no impacts on the quality of the groundwater. Examples of bunding include
concrete curbing and drainage systems around equipment and large linings covering the
ground and around storage tanks which will hold the full volume of the storage tank.
Collected waste water including which may include treated sewage and grey water,
rainfall runoff from potentially contaminated and non-contaminated areas, machinery
wash down water and the brine waste water from desalination processes will be treated
to a high standard. This treated waste water will be discharged to sea in a controlled
manner and tested to meet stringent water quality standards consistent with Australian
guidelines before being discharged at an appropriate location. The exact discharge
location will be based on an environmental impact assessment to help determine the best
location for any outfall to minimise any risk of environmental impact. However it is
anticipated that the outfall would be located 2 to 3 kilometres (1.2 to 1.9 miles) offshore.
An outfall is specifically designed to maximise the amount of mixing so that the water is
the same as background levels within tens of metres of where it is put back into the
ocean due to the high quality water treatment that will be used.
The management of waste water will be subject to an Environmental Impact Assessment
and approval by the government via the Strategic Assessment process.
Question ñ If there are any bilge and/or oil spills, how will these be managed?
There are laws in place which detail the standard to which vessels and facilities are to be
designed and maintained to minimise the risk of spills.
To prevent spills, measures will be in place for all activities on vessels and for land based
facilities during the construction and operation phases. This includes the use of leak
detection equipment, procedures for refuelling and transfers. For onshore, and on the
jetties, bunding is used to contain spills. Examples of bunding include concrete curbing
and drainage systems around equipment and large linings covering the ground and
around storage tanks which will hold the full volume of the storage tank.
All vessels that enter the port will be compliant with the International Maritime
Organisation requirements. The condensate (light oil) tankers and LNG carriers will be
double hulled to minimise the risk of a spill even in the unlikely event of grounding.
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