There are many
unanswered questions around the Port Stanvac Desalination plant
Alternatives to the Desalination plant.
What work has been done to investigate the
use of aquifers in the sourcing and storage of water for Adelaide?
Has an integrated State plan setting out
alternative projects, including stormwater recovery, been prepared and
costed as part of the decision making process?
Impacts of the Desalination plant.
Operation of the Plant/Infrastructure
How much will the plant cost and how will it
Where will power come from?
If not from a renewable source, will
off-peak power be used?
What is power consumption per mega litre?
Where will water enter the distribution
If water is generated over winter, where
will it be stored?
Does the Government have any performance
evaluation criteria documented and available for public scrutiny?
Who will pay for remediation of the Port
Stanvac site and what is the cost estimate
What other chemicals will be used to treat
the water such as anti-scalants, how much will be discharged, and what
is the maximum spill risk and discharge from these chemicals?
What is the projected cost per k/l from
this plant and what is the energy cost and amount in that figure?
Has any study of the effects of Desal at
Penneshaw (where is best to ask for) been done?
Does concentrated brine from Desal plants
have any detrimental effect on local sea life especially squid eggs?
Will any dilution or brine mixing be
carried out during low tidal changes ‘dodge tides’?
What have been the case studies
considered internationally in regard to siting a plant of this type in a
closed gulf environment and what have been the environmental failures in
What hydrocarbons are at risk of
disturbance and intake from the waters surrounding Port Stanvac and what
is their impact on the plant and human health?
What is the biomass component of the
intake water and how will this be disposed off?
of decision process.
Which individuals decided to build a
desalination plant on this site?
The report Waterproofing Adelaide
released in October 2003 was a 20-year plan that mentioned desalination
only once – ‘benefits are potentially unlimited but involve a very
high power requirement’. Has this view changed? When and why did it
change? Whose view is it?
What organisations provided advice on
this matter and what are their declared commercial interests and
conflicts of interest?
As United Water have been given a 15.5
year contract “to manage, maintain and operate the city's water and
wastewater assets … [the largest water management contract in
Australia]” what sort of profits will be going to them?
of Gulf for stormwater/waste water.
How much will the government spend on
stormwater capture, storage and treatment?
It is known that stormwater is causing
significant damage to the gulf including the loss of 50% of the
seagrasses between West Beach and Brighton. What is the timetable and
budget to stop this discharge?
What has the funding of alternative
technologies such as bioremediation of waste and stormwater been over
the past 10 years?
Why can only 20GL of stormwater be
recovered as stated in the waterproofing Adelaide Plan, and what is the
cost of that water?