MOD 11 - water management during MPPS outages

It is entirely inappropriate for mine waste discharges to enter any watercourse which is a tributory to a drinking water catchment. In this case, the water catchment for the Sydney region (Lake Burragorang) will be affected by any discharges which make their way into the Cox's River. It is essential that miner operators find other methods of dealing with disposal of waste products, even if this entails greater costs. To do otherwise, is to shift the real costs on to the community, and this is entirely unacceptable.

I strongly oppose Centennial Coal’s plans to dump its toxic wastewater into a reservoir at the headwaters of Sydney’s drinking water catchment.

I am familiar with this beautiful and ecologically sensitive part of our Greater Blue Mountains World Heritage Area that will be affected if Centennial is allowed to pursue its destructive scheme.

If this first proposal is approved, it would result in a huge increase in pollution, heavy metal and salinity load into the environment. Higher salinity means lower oxygen, which reduces food for platypus.

Centennial should be required to treat mine water to ensure that any discharge fully removes contaminants like heavy metals, salt and brine and deliver the zero release system they proposed when the water treatment plant was approved.

Of course the contamination caused by this discharge will affect not only the river systems in the Greater Blue Mountains region but ultimately Sydney’s water supply. The approval of this proposal could indeed have very far reaching consequences.

Centennial has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region. Clearly Centennial should not be allowed to self-monitor the level of contaminants released.

Further, the government should commission a public inquiry into mine wastewater produced by Centennial’s underground coal mines in the Gardens of Stone region.

To whom it may concern,

I am writing to strongly object to the recent Centenial Coal proposal.
I am deeply concerned about the impact the disposal of waste water into the Thompson’s creek reservoir. This is part of the catchment for Warragamba Dam, one of the most important sources of drinking water in Sydney. The pollution of this water will affect millions of people.
More so, this water will travel though World Heritage listed National Park, putting further at risk important species such a platypus, along with the status for our National Park.
We live in incredible ecosystem, that holds significant diversity while filtering water and air for the many inhabitants in the mountains and further afield through our Sydney.
This is our life support system. Why would we threaten it?
I ask that this proposal is rejected and further that there is a requirement for Coal mining and power stations to up their act in environmental protection and rehabilitation.

Sincerely,
Sarah Daniel.

I am opposed to this proposal and am concerned that the health of Sydney’s drinking water and the ecological value of the Greater Blue Mountains World Heritage Area and wildlife such as the platypus will be compromised should this proposal be approved.
Water experts have previously warned that blending or dilution of dirty water with treated water will exacerbate, rather than address, pollution of the Sydney drinking water catchment due to the increase in pollution load
Two previous applications from Centennial seeking to discharge megalitres of mine waste into Wangcol Creek were withdrawn, and this ‘dilute and discharge’ approach would be far worse as it involves far more polluted water.
If this first proposal is approved, it would result in a huge increase in pollution, heavy metal and salinity load into the receiving environment. Higher salinity means lower oxygen, which reduces food for platypus. Elecro-receptors on their bill locate prey, however salinity disrupts these, they can’t find food and starve to death. Since Mount Piper power station may remain open until the early 2040s, Centennial is seeking permission to dilute and discharge water from Thompsons Creek Reservoir during scheduled offline maintenance periods for the lifetime of the water treatment plant. This could mean up to or around 15 years of huge volumes of dirty water discharge for up to 111 days at a time.
Centennial should be required to treat mine water to ensure that any discharge fully removes contaminants like heavy metals, salt and brine and deliver the zero release system they proposed when the water treatment plant was approved. Anything less threatens the safety of Sydney’s drinking water supply and water dependent ecosystems, including endangered and threatened species.
If Centennial is unable to do this, Springvale mine must be closed and alternative coal supplies found for Mount Piper power station.
It is not good enough for Centennial to self-monitor the level of contaminants as they have proposed. Centennial has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region.
There is no ‘plan B’ to divert mine water if monitoring reveals higher than expected salinity levels.
The planning department must require Centennial to significantly reduce the mining intensity at its underground coal mines to protect the natural environment and to reduce the volume of wastewater sent to Mount Piper power station.
The government should commission a public inquiry into mine wastewater produced by Centennial’s underground coal mines in the Gardens of Stone region .
I find it startling that any project to release polluted waters into the Sydney's drinking catchment headwaters is even being considered. Members of the public can be fined $14,000 for walking in catchment areas but corporations feel they can apply for a licence to discharge actual pollutants into the headwaters feeding eventually to Warragamba dam.

# I am opposed to this proposal as it is likely to adversely impact the health of Sydney’s drinking water and the ecological value of the Greater Blue Mountains World Heritage Area; wildlife such as the platypus will be severely compromised should this proposal be approved.
# The blending and/or dilution of dirty water with treated water does not seem to offer a solution to polluted water levels
# Centennial should be treating discharged mine water to remove heavy metal contaminants and the like, before discharge
# If Centennial cannot or will not action this water treatment, then Springvale should be closed
# Centennial should not be allowed to self-monitor discharge levels, as they have repeatedly breached standards in GBM region on numerous occasions
# It is unclear what Centennials plan will be, if testing shows excessive salinity levels
# A public enquiry should be commissioned into Centennials underground mine wastewater discharges in the Gardens of Stone region, and upon the effects on Sydney's drinking water.

Dear planning decision makers,
I write to notify my objection to the proposal by Springvale Coal PL to gain approval for Springvale Water Treatment Plant to discharge a mix of treated and semi-treated mining waste water and water from "dewatering" their coal mines into Thompson Creek during periods of time when the Mt Piper Power Station is not operating and therefore cannot take this mining waste water.
It is extremely concerning that this blended waste water is proposed for release into the Blue Mountains World Heritage area, which is home to a number of threatened species, in particular platypus, which obviously live in the rivers and creeks in the area.

There is a concern about the salt level in the water being discharged into this freshwater environment. Although Centennial Coal, which operates the mine, has undertaken to monitor the salinity levels in its blended waste water, it is my understanding that Centennial has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region (https://apps.epa.nsw.gov.au/prpoeoapp/) which indicates that they have a history of disregarding serious environmental concerns and cannot be trusted to self monitor. Additionally, there is no information about what they plan to do with this waste water, should it exceed the allowed salinity levels, suggesting they there is no other plan.

In addition, the level of heavy metals in this mining waste water is also a great concern. According to an article in Nature scientific journal "Toxic heavy metal ions contamination in water and their sustainable reduction by eco-friendly methods: isotherms, thermodynamics and kinetics study" (https://www.nature.com/articles/s41598-024-58061-3) the prevalence of heavy metal contamination of the environment, most notably from waste disposal, industrial manufacturing, and mining, is cause for serious concern for the health of humans and animals, as heavy metals don't break down and accumulate in the bodies of people and animals, leading to the possibility of heavy metal poisoning, affecting kidney, liver and skin and possibly also cancer. According to this article, heavy metal contaminant removal from the environment is both imperative and very expensive. This would suggest that any suggestion that heavy metals be discharged into the natural environment is completely unacceptable.

Accordingly, Centennial Coal should be required to treat mine water to ensure that any discharge fully removes contaminants like heavy metals, salt and brine and deliver the zero release system they proposed when the Springvale Water Treatment Plant was approved. Anything less threatens the safety of Sydney’s drinking water supply and water dependent ecosystems, including endangered and threatened species. If they cannot do this, they need to halt/significantly scale back operations until this can be guaranteed.

Lastly, there has been a powerful reminder recently of the consequences of allowing heavy industry to pursue commercial gain at the expense of the environment. The documentary "How to poison a planet" (https://www.stan.com.au/watch/revealed-how-to-poison-a-planet-2024), alongside the current Federal parliamentary inquiry into the release of PFOS chemicals into the waters of Jervis Bay (https://www.aph.gov.au/Parliamentary_Business/Committees/Senate/PFAS_per_and_polyfluoroalkyl_substances/PFAS), and the horrendous health and cultural outcomes for the Wreck Bay Aboriginal community (https://www.abc.net.au/news/2021-02-03/jervis-bay-aboriginal-community-lodges-pfas-class-action/13112626) show how detrimental these kinds of decisions to allow the pollution of the natural environment can be.

I therefore urge you to refuse the Springvale Water Treatment Facility modification to its development approval.
Jenny Long

I am writing as representative of the 'Lane Cove coal and gas watch' We were set up in 2013-14, because of the community concern for massive coal mining in our drinking water catchment.
We have brought to the attention of the planning department the dangers of continually allowing coal mining in our water catchment because of the harm it does to world heritage upland swamps , by draining them of water, and even worse the threat to the millions who rely on Sydney's drinking water.
Every time Springvale has acquired permission to continue mining, it has been with the proviso that they treat any water returned into catchment streams. This has never been adhered to.
Once the contaminants are in the water it is extremely difficult to get rid of them.
Centennial coal has just relied on the goodwill of the government or the people of NSW to bail them out continually, while lying about their ability to treat the water adequately.
Water is a much more precious redource than coal and we should not allw it to be contaminated further.
Even if it can be cleaned up (which is doubtful) it should not fall upon the taxpayers of NSW to bail out a foreign owned company yet again.

Opposition to the Proposal SSD-7592: Centennial Coal Modification 11

*Introduction
I strongly oppose this proposal, as it poses a significant risk to the health and integrity of Sydney’s drinking water supply and the ecological value of the Greater Blue Mountains World Heritage Area. If approved, this plan would compromise vital ecosystems and endanger wildlife, including the platypus, by introducing a dangerous increase in pollution levels.

Experts in water management have previously warned that attempting to blend or dilute polluted water with treated water does not solve the issue—it exacerbates it. This method leads to an overall increase in the total pollutant load within Sydney’s drinking water catchment, further degrading water quality. Rather than mitigating contamination, this practice would allow harmful substances to accumulate at alarming rates, endangering both human health and fragile ecosystems.

Centennial has a troubling history with similar proposals. In the past, the company submitted two applications seeking permission to discharge large volumes of mine waste into Wangcol Creek—both were ultimately withdrawn. The current “dilute and discharge” method being proposed is even more concerning, as it involves significantly larger volumes of highly polluted water, worsening the long-term damage to the region’s water systems.

*Protecting Sydney’s Drinking Water and the Greater Blue Mountains World Heritage Area
If the proposal proceeds, it will introduce a dramatic increase in pollution, including high concentrations of heavy metals and salinity, into the surrounding environment. Increased salinity is particularly dangerous for aquatic ecosystems. Elevated salinity reduces dissolved oxygen levels in the water, depleting essential food sources for sensitive species such as the platypus. This monotreme relies on electroreceptors in its bill to locate prey, but heightened salinity disrupts these receptors, leaving them unable to hunt effectively. As a result, platypuses in the area could face starvation, leading to a sharp decline in their already vulnerable population.

Additionally, Centennial’s long-term intentions for this water treatment method raise significant concerns. Given that Mount Piper Power Station may continue operating until the early 2040s, Centennial is seeking approval to regularly dilute and discharge polluted water from Thompsons Creek Reservoir during scheduled offline maintenance periods. This practice could continue for as long as 15 years, allowing vast amounts of contaminated water to be released for up to 111 days at a time. Such an extended period of degradation would cause irreversible harm to the region’s waterways and ecosystems.

*Centennial Must Be Held Accountable for Proper Water Treatment
Centennial must be required to fully treat all mine water before any discharge occurs. This means ensuring complete removal of harmful contaminants, including heavy metals, salts, and brine, in order to uphold the environmental protections that were originally promised when the water treatment plant was approved. A failure to meet these standards directly threatens both Sydney’s drinking water supply and the health of water-dependent ecosystems, including numerous endangered and threatened species.

If Centennial is unable or unwilling to meet these essential water treatment requirements, then the only viable course of action is to shut down the Springvale mine and secure alternative coal supplies for Mount Piper Power Station. Continuing to operate under unsafe conditions is unacceptable and places the region’s water security in jeopardy.

*Lack of Transparency and Environmental Violations
Centennial’s proposal to self-monitor contamination levels is entirely inadequate and raises serious concerns about accountability. The company has a well-documented track record of environmental breaches, having violated its environmental license more than 1,400 times across seven coal mine sites in the Greater Blue Mountains region. Given this history of noncompliance, allowing Centennial to regulate itself would be reckless and irresponsible.

Furthermore, there is currently no contingency plan—no “Plan B”—to divert mine water if monitoring reveals higher-than-expected salinity levels. This lack of foresight and preparedness further underscores the risks associated with approving this proposal.

*Urgent Need for Government Oversight
To protect the natural environment and reduce wastewater contamination, the Department of Planning must require Centennial to significantly scale back the mining intensity of its underground coal operations. This is the only way to minimize the volume of wastewater being discharged into the region’s waterways and mitigate further environmental degradation.

Additionally, the government must commission a public inquiry into Centennial’s wastewater management practices. A thorough investigation is needed to assess the full impact of wastewater discharge from Centennial’s underground coal mines in the Gardens of Stone region. Transparency, accountability, and proper regulatory oversight are essential to ensure that Sydney’s drinking water and the surrounding ecosystems remain safe for future generations.

*Conclusion
This proposal is unacceptable and must be rejected. The health of Sydney’s water supply and the ecological integrity of the Greater Blue Mountains World Heritage Area cannot be sacrificed for short sighted industrial convenience.

I strongly oppose this proposal Centennial Coal Modification 11 to SSD-7592 (MOD 11) and have a major concern that the health of Sydney’s drinking water and the ecological value of the Greater Blue Mountains World Heritage Area and wildlife such as the platypus will be compromised should this proposal be approved.
Water experts have previously warned that blending or dilution of dirty water with treated water will exacerbate, rather than address, pollution of the Sydney drinking water catchment as overall load of pollutants will drastically rise[1].
Two previous applications from Centennial seeking to discharge megalitres of mine waste into Wangcol Creek were withdrawn, and this ‘dilute and discharge’ approach would be far worse as it involves far more polluted water.
If this first proposal is approved, it would result in a huge increase in pollution, heavy metal and salinity load into the receiving environment. Higher salinity means lower oxygen, which reduces food for platypus. Elecro-receptors on their bill locate prey, however salinity disrupts these, they can’t find food and starve to death.
As Mount Piper power station may remain open until the early 2040s, Centennial is seeking permission to dilute and discharge water from Thompsons Creek Reservoir during scheduled offline maintenance periods for the lifetime of the water treatment plant. This could mean up to or around 15 years of huge volumes of dirty water discharge for up to 111 days at a time.
Centennial should be required to treat mine water to ensure that any discharge fully removes contaminants like heavy metals, salt and brine and deliver the zero release system they proposed when the water treatment plant was approved. Anything less threatens the safety of Sydney’s drinking water supply and water dependent ecosystems, including endangered and threatened species.
If Centennial is unable to do this, Springvale mine must be closed and alternative coal supplies found for Mount Piper power station.
It is not good enough for Centennial to self-monitor the level of contaminants as they have proposed. Centennial has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region[2].
There is no ‘plan B’ to divert mine water if monitoring reveals higher than expected salinity levels.
The planning department must require Centennial to significantly reduce the mining intensity at its underground coal mines to protect the natural environment and to reduce the volume of wastewater sent to Mount Piper power station.
The government should commission a public inquiry into mine wastewater produced by Centennial’s underground coal mines in the Gardens of Stone region.
Sincerely,
AnneMaree McLaughlin
9 Emmaville St Orange NSW 2800

Please refer to attachment

I strongly oppose this proposal and have a major concern that the health of Sydney’s drinking water and the ecological value of the Greater Blue Mountains World Heritage Area and wildlife such as the platypus will be compromised should this proposal be approved.
Water experts have previously warned that blending or dilution of dirty water with treated water will exacerbate, rather than address, pollution of the Sydney drinking water catchment as overall load of pollutants will drastically rise[1].
Two previous applications from Centennial seeking to discharge megalitres of mine waste into Wangcol Creek were withdrawn, and this ‘dilute and discharge’ approach would be far worse as it involves far more polluted water.
If this first proposal is approved, it would result in a huge increase in pollution, heavy metal and salinity load into the receiving environment. Higher salinity means lower oxygen, which reduces food for platypus. Elecro-receptors on their bill locate prey, however salinity disrupts these, they can’t find food and starve to death.
As Mount Piper power station may remain open until the early 2040s, Centennial is seeking permission to dilute and discharge water from Thompsons Creek Reservoir during scheduled offline maintenance periods for the lifetime of the water treatment plant. This could mean up to or around 15 years of huge volumes of dirty water discharge for up to 111 days at a time.
Centennial should be required to treat mine water to ensure that any discharge fully removes contaminants like heavy metals, salt and brine and deliver the zero release system they proposed when the water treatment plant was approved. Anything less threatens the safety of Sydney’s drinking water supply and water dependent ecosystems, including endangered and threatened species.
If Centennial is unable to do this, Springvale mine must be closed and alternative coal supplies found for Mount Piper power station.
It is not good enough for Centennial to self-monitor the level of contaminants as they have proposed. Centennial has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region[2].
There is no ‘plan B’ to divert mine water if monitoring reveals higher than expected salinity levels.
The planning department must require Centennial to significantly reduce the mining intensity at its underground coal mines to protect the natural environment and to reduce the volume of wastewater sent to Mount Piper power station.
The government should commission a public inquiry into mine wastewater produced by Centennial’s underground coal mines in the Gardens of Stone region.
Sincerely, Robert McLaughlin

The proposal by Centennial Coal to release treated and/or untreated water into waterways that feed into the catchment area for the Sydney water supply must be given the most serious consideration. Centennial Coal must be required to treat mine water to ensure that the process removes any and all contaminants, and delivers the zero release system they proposed when the water treatment plant was approved. Anything less threatens the safety of Sydney’s drinking water supply and water dependent ecosystems, including endangered and threatened species. If Centennial is unable to do this, Springvale mine must be closed and an alternative coal supply for the Mount Piper power station arranged. Centennial must not be allowed to self-monitor the level of contaminants as it has been found to have breached its environmental licence more than 1400 times across 7 coal mine sites in the Greater Blue Mountains region. The government should commission a public inquiry into mine wastewater produced by Centennial’s underground coal mines in the Gardens of Stone region with a view to force Centennial's full compliance with its obligations.

My name is Thomas Ebersoll. I am operating holiday cabins at Newnes near Lithgow and I am a member of Lithgow Environment Group (LEG). Over many years LEG has monitored and documented breaches by Centennial which damaged our environment - the local flora, fauna, water and aquifers. That record is appalling and the present application for modification MOD11 represents another desperate attempt to patch up a broken ‘Modus Operandi’ (a method of operation or pattern of criminal behavior so distinctive that separate crimes or wrongful conduct are recognized as the work of the same person - or in this case a corporation).
The idea to store “blended water” in Thompsons Creek Dam without a Mine Waste Storage Limit will release still toxic and highly saline mine waste water into Sydney’s water catchment whenever the dam overflows. Centennial’s environmental record leaves me with no confidence that they will manage this waste water responsibly.
This MOD 11 is unacceptable and the department should reject this application.
I fully support the detailed submissions by Lithgow Environment Group, Nature Conservation Council and Nature Australia.

Thank your for the opportunity to make a submission for this project.
Please see attached my submission.

As a Sydney resident, I strongly oppose Centennial’s proposal to dump mine wastewater into Sydney’s drinking water catchment. This reckless plan threatens water security, public health, and fragile ecosystems.

Centennial’s mining has already destroyed aquifers in the Gardens of Stone Conservation Area, draining groundwater and drying out endangered peat swamps. Now, they want to discharge up to 42 million litres per day of mine wastewater—some of it untreated—into Thompsons Creek Reservoir, which flows into the Coxs River and Warragamba Dam. This means pollutants, heavy metals, and high salinity in our drinking water.

Water experts warn that blending dirty water with treated water doesn’t fix pollution—it makes it worse. Platypuses, which rely on electro-receptors to find food, will starve as salinity rises. Centennial has racked up over 1,400 environmental breaches—self-monitoring is not an option.

Sydney’s drinking water isn’t a dumping ground. If Centennial can’t fully treat its wastewater, it shouldn’t be mining. Reject this proposal. Demand a zero-release solution.

Sincerely,

I oppose the Centennial Coal’s Modification 11 to SSD-7592 (MOD 11) - water management during MPPS outages

We need to eliminate, and/or minimise and adequately cleanse Centennial Coal’s waste mine water where over 50 ML/day of mine water discharged from its coal operations.
We need the EPA, or some other independent agency not associated with Centennial to work out how to stop the pollution.
NSW Planning Department (SSD 7592) development consent for the Springvale water treatment plant approves a zero-discharge system that allows mine waste storage in Thompsons Creek Reservoir.
I don’t believe Centennial Coal can maintain a zero-discharge, due to the increase in reduced power generation from Mt Piper and increase in outages. History shows EnergyAustralia NSW, Nov 2024, Water Access Licence and Approval Annual Compliance Report for Mt Piper Power Station (MPPS) contains data in Table 3-1, page 24 that reveals the total mine waste discharged to receiving waters from Thompsons Creek Reservoir for 2023/24 was 5,525ML (i.e. 5.525GL). Environment Protection Licence No. 13007 permitted an emergency release of 1,549.8ML in line with planning consent (SSD 7592). In 2023/24 Centennial discharged into Sydney's drinking water catchment 3,975ML (3.975GL) of inadequately treated mine water without planning consent or a pollution licence.
Again, we need a plan to stop the discharge of any untreated mine waste.
The background salinity of the upper Coxs River is 30EC and to protect drinking water and the World Heritage ARea this should be the discharge standard for mine water discharged.
The Centennial modification 11 proposes a 650EC salinity concentration standard for mine waste stored in Thompsons Ck Res; the 2015 Springvale mine consent set a 500EC standard for mine waste discharges. With no limit on mine waste transfers to Thompsons Ck Res, mine waste will continue to be discharged into the Warragamba catchment.
45% of Centennial’s waste produced by its coal mines was discharged to receiving waters last financial year, that's 5.25GL of 12.4GL of mine waste.
Mt Piper Power Station water licence (WAL 27428, condition MW5870-00001) requires mine waste to be used, unless unavailable.
EA compliance report, 2024, page 33, The 2023-24 total MPPS water usage was 10,885.9ML/yr and included 3,414.2ML taken from the Coxs River. The mine water that was discharged in 2023/24 fy (3,975ML), and not stored to be reused in the MPPS cooling towers, was apparently replaced by Coxs River water, contrary to EA's Water Licence.
At least 8,137ML of filtered mine water has been pumped to Thompsons Creek Reservoir and probably much more. 5,525ML in 2023/24 fy as indicated in the EA water compliance report and 2,612 ML as of 31 October 2021 (ref - Department of Planning and Environment, October 2022, Springvale Water Treatment Project MOD 8 | Assessment Report, pg 1). The approved storage limit of 5,760ML in the development consent for SSD 7592 has been exceeded by 2,377ML (>2GL).
With the amount of mine waste water, and more and more downtime at Mt Piper, it appears the system is not capable of handling the volume of waste water and needs to be scaled to treat all of the mine water. This is not a Mod for emergency/unforeseen circumstances, but a simple claim to allow Centennial Coal to continue the practice of polluting the environment if it deems it is required. This should not be the case, the MOD should not be allowed, and miner needs to respect the environment and clean all mine waste water to natural background levels.

The quality of Sydney drinking water is vital to the health of all human residents. Also under threat from this proposal are platypus and other native fauna.

I object to the project because of its impact on the water catchment. All of this to dig more coal out which will also create environmental problems on its own.

We do not want toxic mine waste going into our water systems and Sydney's water supplies.
Centennial discharged over five thousand million litres of inadequately treated pollution from Thompsons Creek Reservoir into Sydney’s drinking water catchment downstream. Most of these discharges were without a pollution licence or planning approval.
This proposal (called Springvale Water Treatment Plant Modification 11) will result in a continuation of large unauthorised discharges of toxic pollution being sent to Sydney's drinking water supplies till 2040. The straight forward argument that what happened last year will keep happening is credible.
We must have an EPA inquiry into Centennial Coal’s operations in the western Blue Mountains region to identify the most effective measures to eliminate, and/or minimise and adequately cleanse over 50 ML/day of mine water discharged from its coal operations.
The modification proposal must be refused consent as it may cause continuation of large unauthorised discharges of mine waste into Sydney’s drinking water catchment. The data in EnergyAustralia’s water licence compliance report of 2024 reveals that >5GL mine waste were released from Thompsons Creek Reservoir last financial year.

To whom it may concern,
Please find attached Wilderness Australia's submission to Springvale Water Treatment Plant, modification 11.
Yours sincerely,
Keith Muir