Showing posts with label water security. Show all posts
Showing posts with label water security. Show all posts

Tuesday 15 October 2019

Water 101 in Australia: where catchment rainfall is 600mm per year or less a large in-river dam will not fill with water


Geraldine Doogue's ABC Radio Saturday Extra interview with Professor Quentin Grafton, water economist, ANU and UNESCO Chair in Water Economics and Transboundary Water Governance on why the political call for more large in-river dams is misguided and only creating problems for the future.

Prof. Grafton asserts that any dams built in an area where the rainfall is 600mm per year or less will not fill with water


Click on: 

https://abcmedia.akamaized.net/rn/podcast/2019/10/sea_20191005_0730.mp3 (14:42mins)

Annual Rainfall 

According to Water NSW published data:

Section of Maryland River, NSW
Google Earth

Maryland River catchment annual rainfall graph/plot is not available or does not exist.

Section of Aberfoyle River, NSW
Google Earth

Aberfoyle River catchment average annual rainfall was less than 600mm in six (6) out of last twenty-one (21) years and less than est. 670mm for another three (3) of those twenty-one years.

Section of the Mole River, NSW
Google Earth

Mole River catchment annual rainfall was less than 600mm in thirteeen (13) of the last eighteen (18) years.

Monday 7 October 2019

Groundwater plays a critical role for rivers worldwide and many aquifers are in trouble


National Geographic, 2 October 2019:

There’s more fresh water hidden below Earth’s surface in underground aquifers than any other source besides the ice sheets. That groundwater plays a critical role for rivers worldwide, from the San Pedro to the Ganges, keeping them running even when droughts bring their waters low. 

But in recent decades humans have pumped trillions of gallons out of those underground reservoirs. The result, says research published Wednesday in Nature, is a “slow desiccation” of thousands of river ecosystems worldwide. Already, somewhere between 15 and 21 percent of watersheds that experience groundwater extraction have slipped past a critical ecological threshold, the authors say—and by 2050, that number could skyrocket to somewhere between 40 and 79 percent. 

That means hundreds of rivers and streams around the world would become so water-stressed that their flora and fauna would hit a danger point, says Inge de Graaf, the lead author of the study and a hydrologist at the University of Freiburg. 

“We can really consider this ecological effect like a ticking time bomb,” she says. “If we pump the groundwater now, we don’t see the impacts until like 10 years further or even longer. So what we do right now will impact our environment for many years to come.” 

Groundwater holds up modern life 

The last undammed river in the U.S. Southwest, the San Pedro of southwestern Arizona, used to gush and roil. Birds chirped and splashed on its banks when they stopped by on their migrations. Rare fish swam in its pools. 

But in the 1940s, wells started to pop up in the nearby area, sucking clean, cool water out of the region’s underground aquifers

It turned out that a good portion of the water that flowed through the river came not from rain and upstream snowmelt, but from those underground sources. The more water that got pumped out of the aquifers, the less flowed into the river—and the wetlands, cottonwood stands, fauna, and rushing waters of the San Pedro all suffered. 

Groundwater is the hidden scaffold propping up much of modern life. Globally, about 40 percent of the food we grow is watered with liquid extracted from below Earth’s surface. 

But many of the aquifers from which this water is extracted took hundreds, or even tens of thousands of years to fill: The water inside may have percolated through cracks in the earth when giant ice sheets last covered New York City 20 thousand years ago. 

Much of that water is being removed much faster than it can be replenished. That has enormous potential consequences for people who want to drink water grow and crops in areas that don’t get enough rain. But far before those impacts emerge, the effects will—and in fact already have—hit rivers, streams, and the habitats around them. 

“Think of an aquifer like a bathtub full of water and sand,” explains Eloise Kendy, a freshwater scientist at the Nature Conservancy. Then, imagine running your finger lightly through the top of the sand, creating a little trail. That little trail fills up with water that percolates through the sand into the “stream.” 

“If you pump out just a little bit of water out of the bathtub, that stream is going to dry out, even though there’s plenty of water still left in the bathtub,” she says. "But as far as healthy rivers go, you’ve destroyed it. But because rivers don’t scream and shout, we don’t necessarily know that they’re in trouble.” 

Read the full article here.

Monday 30 September 2019

Water raiders drop the pretence and go for source of Clarence Valley's drinking water


Having degraded their own rivers and failed to adequately plan their own water security for times of drought, local governments in the Murray-Darling Basin are calling for damming and diversion of water from the Northern NSW Clarence River system.

Thus far the Maryland River and the Aberfoyle River have been identified as desirable options by these wannabee water raiders. 

This is the Clarence River Catchment.
via Blicks River Guardians

The Aberfolye River is shown in the left hand lower curve of the catchment boundary.

The river is approximately 115km in length with an annual average water flow of 19,482 ML.

The Aberfoyle River* empties into the Guy Fawkes River which in turn runs into the Boyd River which is a tributary of the Nymbodia River which itself is the greatest contributor of water to the Clarence River system and the source of at least 95 per cent of Clarence Valley drinking water.

The Nymboida River is also the source for water storage held in the 30,000Ml Shannon Creek side dam which supplies water security for a combined total of 128,198 residents (as well as local businesses and over 5 million tourists annually) in Clarence Valley and Coffs Harbour City local government areas.

Ten years ago the Nymboida was supplying water for a population of 95,000 - in forty years time it is conservatively expected to supply 220,000.


This proposal appears to be based on one of fourteen Clarence River diversion schemes 'desktop' investigated in the early 1980s - specifically a proposed dam on the Aberfoyle diverting water to either Happy Valley, Boorolong or Teatree creeks to feed the Gwydir River, or alternatively an Aberfoyle dam to feed the Gara River. 

Drawing more water from the Upper Nymboida sub-catchment will in all probability raise hydrological and environmental stress on the entire Nymboida River and, may result in water levels at the Nymboida Weir falling below the 225Ml/D low flow level pumping cutoff up to est. 80 per cent of the time.

At the time of writing the Nymboida flow was 200Ml/D.

Indeed, given that rainfall decline has been occurring in the Northern Rivers region for around five decades, any further decline in available river water to supply daily use and long-term water storage has the potential to see intractable water scarcity develop in Clarence Valley and Coffs Harbour City local government areas, as well as a sharp decline in the health of the Nymboida River.

The rest of eastern Australia needs to realise that the Clarence River system is not filled to the brim with harvestable water. The 500,000,000Ml of water annually discharging into the Pacific Ocean at the mouth of the Clarence River was a myth from the first time it was calculated.

Even Clarence Valley and Coffs Harbour City councils will have to curb their desire for continuous development, as they probably have less than twenty years of water security remaining even if the wall of Shannon Creek Dam were to be raised.

Since the Millennium Drought Clarence Valley households have been on permanent low level water use restrictions as a precautionary measure, but as this current drought** may indicate that severe drought is no longer an anomaly but an everyday fact of life, we may be facing a higher level of permanent water restrictions very soon. 

Note

The Devils Chimney in the Aberfoyle River gorge was declared an Aboriginal Place on 8 August 1980. It is protected under under Section 90 of the NSW National Parks & Wildlife Act 1974 and can not be damaged, defaced or destroyed without the consent of the NPW Director-General. Unfortunately the NSW Berejiklian Government does allow for damage and destruction of such sites.

** The NSW DPI Clarence Valley Drought Map as of 24 September 2019:

CDI = Combined Drought Indicator. RI = Rainfall Index. SWI = Soil Water Index. PGI = Pasture Growth Index. DDI = Drought Direction Index
Data current to 24/9/2019 (AEST)

Saturday 21 September 2019

Quote of the Week


"NSW is experiencing one of the most severe droughts on record, with the Central West, Far West and North West regions the worst affected to date. There have been extreme low inflows (the amount of water entering the river and its storages) – the past six months have seen the lowest recorded inflows in history. ..... Without imminent inflows, the lack of water will continue to impact water quality and the riverine environment, while curtailing agricultural production."  [WaterNSW, Regional Drought Information, August 2019]

Sunday 15 September 2019

Good grief! Its 2002 meets 2007 in the Northern Rivers region during 2019


Clarence Valley Independent, letter to the Editor,11 September 2019:

Ed,
Good grief! Its 2002 meets 2007 in the Northern Rivers region right now.
This month we learned that there was an approx. 40 degree Celsius sudden warming in the upper atmosphere over Antarctica which will extend the current eastern Australia drought into the foreseeable future. With the Bureau of Meteorology stating that the last time a similar event occurred was in 2002 when the country experienced one of its driest years on record.
Readers might recall that 2002 was smack bang in the middle of the millennium drought. A drought which at one point saw the Orara River cease to run and at another, the Nymboida Weir unable to do more than supply two weeks of drinking water for the Clarence Valley before the pumps would no longer be able to draw any water up at all.
Last month we discovered that wannabee water raiders from the Murray-Darling Basin were back with another bid to divert water from the Clarence River system so that they could get a larger, less expensive dam built to order and, these four local councils – one in NSW and three in Queensland – can then undertake the intended expansion of their their urban and industry footprints.
Just as in 2007 they come at a time when the Clarence Valley is in drought and water flow in the upper reaches of the Clarence River is low, demanding we supply irrigation and drinking water – this time for an additional est. 236,984 people.
And just as in 2007 the media reports that at least one of the councils has already been talking with the federal Minister for Water Resources about their cross-border water diversion scheme and is pursuing a meeting in Canberra [The Chronicle, 3 September 2019, p.5 ].
The only difference between 2002, 2007 and 2019 is that the Clarence Valley acted on the lessons learnt between 1996 and 2010. Something Tenterfield, Toowoomba, Southern Downs and Western Downs failed to do.
Clarence Valley and Coffs Harbour City expanded their original water sharing arrangement by building the Shannon Creek Dam to future proof as much as is possible the water supply for a est. combined total population of 128,198 people.
Now these four Murray-Darling Basin councils want the Clarence River system to supply water for a new total combined population of 365,182 people.
I wonder if now is the time to remind those politicians who may be thinking of supporting this push to build a 20,000 to 30,000 megalitre dam and pipeline that, the last time an attempt was made to grab Clarence water willy nilly, Clarence Valley communities helped bring down a federal government.
Judith M. Melville, Yamba

Friday 13 September 2019

Water raiders want Clarence Valley communities to be "grown-up" and just let them go ahead and degrade the upper Clarence River water flow


This was Toowooba Regional Council in 2018 and the Clarence Valley's response.......

The Daily Examiner, 24 April 2018

This is Toowoomba Regional Council in 2019......

The Chronicle, 10 September 2019:

TOOWOOMBA Mayor Paul Antonio has called on his New South Wales colleagues to be part of a “grown-up discussion” over long-term water strategies, including a pipeline from the Clarence River.
Cr Antonio’s comments come amid a push-back from the Grafton community over discussions to connect the bountiful Clarence system to struggling areas in the Southern and Western Downs to combat the effects of drought.
Clarence Valley Mayor Jim Simmons said last week he was adamant no headwaters would be leaving the system in the near future, even as the multi-council water allocation plan collects speed.
But Cr Antonio said it was important that all options were explored to ensure the east coast of Australia was well-supplied.
“I think we’ve got to be grown up and have a discussion around that,” he said.
“The Maryland river system has a 21,000ML yield, would take a fraction of water from the Clarence, but make a profound difference.
“We need the state governments in Queensland and New South Wales to facilitate a conversation around water strategies, and I’m having some robust discussions with the mayor of Tenterfield (Peter Petty) at the moment about it.”
The council endorsed a motion early last year to investigate a pipeline from the Clarence River, and the Southern Downs Regional Council made a similar commitment late last week.
Cr Antonio said continuous consultations over water would become the reality for councils and state governments in the near future.
“Water is the new currency, water is the limiting factor in population growth and food production in this area and many other areas,” he said.
“Now is the time to reflect on where we are and put strategies in place and it will lift this nation and make it more productive.”

Clarence Valley Independent, 4 September 2019:

In a video on SDRC’s Facebook site, the [Southern Downs Regional Council] mayor says “we have letters of support from Toowoomba regional Council and Paul Antonio, mayor of Toowoomba, [who is] also the chair of the Darling Downs South West Queensland Council of Mayors”.
Mr Antonio said in his letter: “As chair of Darling Downs South West Queensland Council of Mayors … I write to give the strongest of support to your council’s submission to the Australian Infrastructure Audit regarding long-term water security on the Darling Downs and NSW Border Ranges.”
Mr Antonio referred to a “crisis meeting” held among each of the councils on May 16.
“It was agreed we will work together to spread resources through planning to interconnect our [water] supplies….” he writes.
“New sources of water can include diversion from the headwaters of the Clarence River basin, via the Maryland River, and access to recycled water from Brisbane.
“Both these options require major investment well beyond the means of the councils involved.
“They also will take a merging of political wills across all three levels of government.
“Nothing short of a visionary, nation-building initiative led by the Commonwealth will solve the problem.
This is a Clarence Valley resident's response in 2019.....

The Mayor of Toowoomba, Paul Antonio, claims to want "grown-up discussions" concerning a proposal to dam and divert Clarence River system water across the border into southern Queensland.

Yet strangely he has not been adult enough himself to notify Clarence Valley Council of this proposal or enter into dialogue with this council which represents the majority of people and communities living along the length of this NSW river system.

What Cr. Antonio also forgets or just chooses to ignore when touting his "nation building initiative" is that there in a legislated, carefully considered water sharing plan already in place - the Water Sharing Plan for the Clarence River Unregulated and Alluvial Water Sources 2016.

This plan covers the Maryland River and specifies the limits to granting water access licences, as well as limits to the maximum amount of water which can be drawn off this river which is set out as 995 ML/yr.

It also specifies when extraction should cease due to low flows; "Water must not be taken when the height of the water in Maryland River passing through the culvert pipes over the Rivertree Road near the southern boundary of portion 33, Parish of Reid, County of Buller, is less than or equal to 50 mm."

The plan defines the constraints on harvestable water rights as those set out in Water Management Act 2000 - Sect 53 & 54. This state act blocks supplying "any other land" with water that has been captured by landholders on the Maryland River.

Additionally, the plan limits the water extraction licence pool to an upper limit of 990 share components.

This water sharing plan was not something that was created without "grown-up discussions". Because NSW stakeholders recognized that our rivers are markedly variable and there is significant competition for water (especially in dry times). So there had to be an evidence-based balance between the needs of users and the need for a sustainable environmental flow in this particular Clarence River tributary.

Because without a genuine environmental flow entering the Clarence River at the confluence of the Maryland and Clarence Rivers, the upper Clarence River would overtime become a degraded waterway.

Cr. Antonio is talking of building an in-river dam and, as the proposed amount of water to be held back from entering the Clarence River under this water raiding scheme is actually 55.5% of the average annual flow of the Maryland River and an est. 57% of its unallocated annual flow, it is hard to see how environmental flows below this proposed dam wall can be reliably met.

Especially given there are existing landholder water entitlements in the Rivertree region on which local farmers depend as they come to grips with changing rainfall patterns.

This Queensland local government councillor is yet to demonstrate that he has any understanding of the interconnective nature of hydrological processes at work along the more than 380 km length of the Clarence River from its headwaters to coastal estuary mouth.

Cr. Antonio appears to see the Clarence River system in terms of the potential for economic growth in his own region -  failing to see the very real aesthetic, cultural, social, environmental and economic values it holds for the people of the Clarence Valley.

He does not take into consideration that the Clarence River system already supplies the water needs of 128,198 residents in the Clarence Valley and Coffs Harbour City local government areas and, that this river underpins two regional economies which together were worth an estimated $5.58 billion in 2018. [See Clarence Valley Council Economic Profile and Coffs Harbour City Council Economic Profile]

One might suspect that Cr. Antonio (who will presumably be seeking re-election in a little over five months) views this water diversion proposal solely through the narrow lens of his own political and personal financial ambitions.

Background

2. ABC News, 7 December 2018:

A southern Queensland Mayor has been fined nearly $15,000 after he was found to have engaged in misconduct in his dealings with the Melbourne-to-Brisbane Inland Railway project.
In an interview with the ABC in 2017, Councillor Paul Antonio, who owns a gravel quarry near Millmerran on the route chosen by the Federal Government, conceded he stood to benefit from the inland rail project.
The ABC revealed, Cr Antonio personally paid $4,900 to have an alternate route for the project investigated, which took the line to the very edge of his quarry.
Cr Antonio told the ABC he paid for the map to find an alternative that did not go through prime agricultural land in Millmerran, to help affected farmers.
After initially telling the ABC he gave the map only to one Millmerran farmer, he later conceded he provided the map to former industry minister Ian MacFarlane, who is now the chief executive of the Queensland Resources Council, and the Federal Member for Groom, John McVeigh.
The matter was referred to the Local Government Regional Conduct Review Panel in April 2018 after a complaint was made by a fellow councillor and a member of the public.
The panel decided the complaint of misconduct was sustained.....
Cr Antonio was fined $14.360.50, ordered to undergo counselling, make an admission of error, and apologise at the next council meeting.
The panel also recommended the Local Government Department's chief executive officer monitor Cr Antonio for compliance with the Local Government Act.....

Wednesday 11 September 2019

Northern NSW likely to remain in drought for the foreseeable future


With the Clarence Valley hinterland in drought and water in the upper reaches of the Clarence River system already low, the following article is not good news for valley communities.

Indeed if the comparison with 2002 holds, then there is a possibility that freshwater entering the tidal pool just below the Lilydale gauge will eventually fall from around the current 286 megalitres daily (less than 10% of historical est. average daily flow) to around 50 megalitres a day.

ABC News, 6 September 2019: 

A rare event that took place 30 kilometres above the South Pole last week is expected to impact upon Australia's rainfall outlook. 

The upper atmosphere above Antarctica warmed by as much as 40 degrees Celsius in the course of a few days — and it is continuing to warm. 

This rare phenomenon, known as sudden stratospheric warming (SSW), could deepen one of the worst droughts in Australian history. 

The Bureau of Meteorology's Harry Hendon warned of dry weather ahead. "We will typically see conditions across most of Australia, but primarily concentrated in the eastern part of Australia, become warmer and drier through spring and into early summer," Dr Hendon said. 

SSW is rare in the southern hemisphere with only one major event ever identified, in 2002 — one of Australia's driest years on record.... 

Sudden stratospheric warming over Antarctica causes westerly winds south of Australia to track further north, a pattern meteorologists refer to as a 'negative SAM'. In spring and summer, this negative SAM pattern brings warmer, drier air into southern Queensland and New South Wales. 

"Unfortunately, these are areas already in drought," said a lead author of the BOM's spring climate outlook, Andrew Watkins. 

Dr Watkins said cooler than normal water in the Indian Ocean, a phenomenon meteorologists call a 'positive IOD', has led to a lack of moisture drifting over the continent. 

"This has certainly been a big factor in why winter has been so dry in virtually all of Australia," he said. 

"On top of that, we have the likelihood of prolonged periods of negative SAM, which also brings drier conditions to New South Wales and southern Queensland. 

"So it's a bit of a double whammy in those locations." Dr Watkins said the impact of the SSW may be felt in Australia through to the end of the year. 

"These sudden stratospheric warming events and the patterns that we see from them can go from September [to] October, sometimes persisting through to January," he said. 

Dr Hendon said he was gratified the Bureau of Meteorology's computer models were able to predict the event. 

"In 2002 we didn't even know about it until after it happened, and we didn't know if we would ever be able to predict it," he said. "It's exciting for us now that we have predictive capability that we didn't have in 2002."

NSW Department of Primary Industries, Combined Drought Indicator:

BACKGROUND

Bureau of Meteorology, 29 August 2019, media release, excerpt: 

FAST FACTS NEW SOUTH WALES 

Spring outlook shows: 

 • Daytime temperatures are likely to be warmer than average across the entire state. Overnight temperatures are also likely to be warmer than average across most of the state, with the highest likelihood in the north. 

• A higher likelihood of drier than average conditions in the coming three months across most of the state. 

Preliminary winter summary shows: 

 • Temperatures in New South Wales have been above average. Daytime temperatures are likely to rank among the warmest 10 winters on record. 

• Rainfall has been below average. 

• Likely to be among Sydney's three warmest winters on record for daytime temperatures, while rainfall was close to average.

Monday 9 September 2019

Let’s keep Queensland water raiders proposed Kia Ora Dam and pipeline a figment of their fevered imagination


If ever their was an example of a shared delusional disorder it is the belief that the Clarence River system has spare capacity to sustainably water share with the Murray-Darling Basin......

The Chronicle, 4 September 2019, p.16, excerpt: 


Southern Downs: The Southern Downs Regional Council has endorsed and will submit to Infrastructure Australia a list of five key infrastructure projects which support the future infrastructure challenges and opportunities facing the Southern Downs. 

The council resolved at the August general meeting to submit the following projects for consideration: 

Pipeline diversion of water from the Clarence River in NSW to Tenterfield, Southern Downs, Western Downs and Toowoomba...... [my yellow highlighting]


The Chronicle, 3 September 2019, p.5, excerpt: 

It comes as the council [Toowoomba Regional Council] starts confidential discussions around long-term water strategies, which could include new pipelines from northern New South Wales or even a new dam within the region. 

Water and waste chair Cr Nancy Sommerfield said she had been in constant discussions with Water Resources Minister David Littleproud about a new pipeline from the Clarence River in NSW. 

“The Clarence River is something I’m looking to talk about – there’s been a lot of work done on that, and I’m going to Canberra to speak with the minister soon,” she said. 

“I really do like the idea of getting water from the Clarence, because it also solves issues for the Southern Downs.”  [my yellow highlighting]


The Daily Examiner, letter to the editor, 4 September 2019:
Let’s keep Kia Ora Dam a figment of imagination
It comes as no surprise that all four councils currently calling for the damming and diversion of water from the Clarence River system at Maryland River are themselves part of the Murray-Darling Basin group of councils.
It also comes as no surprise that three of these councils are in southern Queensland.
Just like Clarence Valley Council and its predecessors, these four councils have known for decades that they faced a future where diminishing regional water resources and increasing demand would make reliable water supply an issue for local governments.

However, unlike Clarence Valley Council and its local communities, these councils did not attempt to future proof their water supplies until it became a matter of urgency for their own communities.

One could almost feel sorry for them until one realises that at least one of the Queensland councils has started to explore new dam and pipeline options in its own backyard.
So why this push to dam and divert water from the Clarence River system? Well, it seems the best option in the Southern Downs region is considered way too expensive by the council there.
One has to suspect that some bright spark on this council decided that if all three Queensland councils joined forces and included a NSW council for good measure they could get Commonwealth and NSW state funding for a dam twice the size with minimum cost to their own coffers.
In 2017 Southern Downs Regional Council even published the name of this proposed 20,000-30,000 megalitre dam to be sited in the Upper Clarence catchment – it’s called the “Kia Ora” dam.
To date these wannabee water raiders have apparently not even undertaken an up-to-date desktop study on the feasibility of this dam and pipeline proposal.
Yet still they call for a dam which has the potential to reduce the Maryland River below the dam wall to a trickle even after it recovers from the present drought, and the potential to place the Upper Clarence water supply and environmental water flows at greater risk.
It is interesting to note the Environmental Impact Statement for the proposed Emu Swamp Dam in southern Queensland mentions previous consideration of “Kia Ora” by Sinclair Knight Merz:
“The Kia Ora dam site on the Maryland River in NSW has been investigated (SKM 1997b, 2007c) but it is not considered to be a viable option. A preliminary analysis suggests that, at full development, the site might be able to provide the required water supplies.
However, more detailed yield assessments for other dam sites in the area have shown that these preliminary assessments have all over-estimated the available yield. It is likely that further work would demonstrate that even the indicated yield is not available.
This site also carries risks arising from the reliability of information that was available to be used in the assessment; the unknown foundations; the high dam wall; the unknown side-spillway foundations; cross-border water transfers and delays and costs arising from the inability of the SSC to use its legislated powers (eg for compulsory land acquisition) in NSW.”
It seems these four councils are not facing the reality of their situation as well as failing to recognise that the Clarence Valley already shares water with a much larger regional population to the south of its own borders and cannot safely increase its water sharing arrangements.
Judith M Melville,Yamba
The Daily Examiner, 3 September 2019, p.11: 


OUR SAY 
BILL NORTH Editor 

For communities such as Tenterfield Shire, whose very survival is quite possibly on the brink without a long-term water plan, tapping into nearby available resources could be what is required to keep crops in the ground and families from moving away. 

The difference between life and death. For the Toowoomba, Western Downs and Southern Downs councils in the northeastern pocket of the failing Murray-Darling Basin, growing populations coupled with water scarcity is a worrying conundrum. 

The headwaters of the Condamine River, which forms part of Australia’s longest river system with the Murray and Darling rivers, rise on Mt Superbus east of Warwick. Less than 50km away as the crow flies is the proposed Maryland Dam site on the Clarence River earmarked by the mayors of those four council areas as top priority in a list of projects to be presented to Infrastructure Australia. 

But as one reader exclaimed when they told me they saw the plans on Southern Downs Regional Council’s Facebook page yesterday morning: “You’ve got to be kidding me. It’s like going to the bank and saying ‘We’re going to rob your bank, watch out’.” 

Any plan to divert water from one system to another leaves a deficit – environmental and economic – where it came from in the first place. 

The Daily Examiner, letter to the editor, 3 September 2019, p.11, excerpt: 

Pipe Dream 

 I have just read this article with great concern and I hope Mayor Simmons and CVC are not waiting for these other councils to get in touch with them before they do something about their proposal to divert our precious Clarence River. 

No offence, but I think this decision is above your tier of government, so I would strongly advise that you take a more proactive stance on this issue. 

We have seen already the damage done by misguided water allocations in the past, (think Murray-Darling as an obvious example), probably half the reason these electorates are running out of water. 

 As I’m sure you are aware, we are in the midst of a severe drought, so this apparently small percentage of fresh water that we take out of the Clarence catchment would in real terms be most of the water currently going in, leaving very little to actually continue on to the sea. What a lot of people fail to realise is the Clarence is tidal to above Grafton. 

This excess fresh water, that we apparently have, mixes with salt water from the Pacific Ocean to form what is known as brackish water and is responsible for its own, very diverse, lifeforms. Ribbon grass, other plants, fish and a great deal of other lifeforms rely on this brackish water. It also carries sediment and nutrients vital to the bottom end of the river and the ocean to sustain life the whole way down.......

As a 55-year-old, third-generation born and bred Clarence Valley local, a surfer, fisherman and son of a professional fisherman, I have had a great love and association with the Clarence and the ocean and would hate to see it destroyed by narrow-minded bureaucrats. 

It would be nice to think it will continue in its present form for my children and theirs. 

Leigh Johnson, Tullymorgan