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Jennifer Marohasy

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Snowy Hydro

How much water did Snowy Hydro release from Lake Eucumbene during the floods?

January 3, 2011 By jennifer

THE managing director of Snowy Hydro, Terry Charlton, denies that Snowy Hydro contributed to the devastating flooding along the Murrumbidgee in early December in which homes were destroyed and wheat fields drown.  He does, however, admit that until Wednesday, December 8, water was being released from Lake Eucumbene.  

Lake Eucumbene has the capacity to store the equivalent of nine Sydney Harbours and was at only 25 percent capacity. 

A chart, recently provided to me by a Snowy Hydro staff member,  shows the extent to which lake levels were falling early December.  

During just one 24 hour period, between 8th and 9th December, lakes levels fell six centimetres which is equivalent to 6,000 megalitres of water being released. 

That is a lot of water; enough water to provide all of Melbourne’s water needs for one week, or grow 5,000 tonnes of rice.  

And yet according to Mr Charlton no water was released from Lake Eucumbene during that 24 hour period.  

In The Australian newspaper on December 15, journalists Samantha Maiden and Lauren Wilson reported that Federal Water Minister Tony Burke and a spokeswoman for the NSW Office of Water also denied any water was release by Snowy Hydro except from overflowing lower storages because of excessive rainfall and flooding. 

The chart of lake levels and an operational plan for Snowy Hydro for December 9th, also provided to me by a staff member, however, indicate that very significant quantities of water were released from Lake Eucumbene.

The communities of the Riverina deserve to know the truth.  

Snowy Hydro must make public all the documentation that they hold on all water releases, and also all inflows, for Lake Eucumbene for November and December 2010.   Only then will we know the extent to which Snowy Hydro contributed to the flooding – or not.

***********

Previous posts on this issue can be found by scrolling down here: https://jennifermarohasy.com.dev.internet-thinking.com.au/blog/tag/snowy-hydro/

The comment thread on this blog post was closed at 12noon on January 05.  There will be more posts on this issue providing opportunity for more comment.

Filed Under: Good Causes, News, Opinion Tagged With: Floods, Snowy Hydro

Snowy Hydro Still in Denial: Ben Glover

December 22, 2010 By jennifer

SNOWY Hydro has denied playing a role in exacerbating this month’s devastating floods despite a leaked document which appears to show that the authority released almost 7000 megalitres from Eucumbene Dam on December 8 – causing water levels to rise to peaks of close to 10 metres downstream in the Murrumbidgee.

Any water release from Eucumbene, floods or no floods, has raised eyebrows among a number of farmers and politicians, specifically because it is just over 20 per cent full, and Riverina MP Michael McCormack has labelled it “a disgrace”.

“It’s totally ridiculous to think that any dam would be releasing water when it’s nowhere near its capacity,” Mr McCormack said. “It’s totally incomprehensible that this would happen.”

The document in question, obtained by The Daily Advertiser this week, maps the inflows and outflows from each of the major dams on December 8 and is known as an operational plan.

It was initially sourced from a Snowy Hydro staff member concerned with the disregard shown for communities downstream.

Snowy Hydro has since rejected the veracity of the document however, explaining that it was just a “forecast model”, which was changed so that the floods downstream could be mitigated for.

The company has refused however, to provide the actual operational plan for December 8, citing “commercial in confidence”.

Snowy Hydro’s role in the floods was last week called into question by a number of media outlets and on December 15, metropolitan newspapers reported Snowy Hydro CEO Terry Charlton’s claims that the authority had not released any water on December 8.

“What we did last week, because we anticipated the floods, is we stopped releasing anything on Wednesday,” Mr Charlton said.

“So we took as much as possible into storage to mitigate the floods.

“But by Thursday and Friday we didn’t have the capacity to store it because we were chockers.”
A spokesman for Snowy Hydro has this week maintained Mr Charlton’s defence.
“We’ve already commented on these assertions and we have nothing further to add to what was in the Sydney press last week,” the spokesman said.

Tumut mayor Trina Thomson lives near the river and very nearly had to evacuate her home during the peak of the floods. She has called for Snowy Hydro to make available any data that could paint a clearer picture as to why the floods got to the level they did.

“I’d appreciate some transparency considering we have a number of landholders impacted on by the recent flood,” Cr Thomson said. “I think there are some grey areas that have to be clarified.”

Member for Murrumbidgee Adrian Piccoli, Wagga MP Daryl Maguire and NSW Opposition spokeswoman for water Katrina Hodgkinson were also strong in their views that Snowy Hydro should release all relevant data, but the office of the NSW Water Minister, Phillip Costa, refused to buy into the debate, saying only that they “would not comment on hypotheticals”.

Instead they brushed the issue aside to be dealt with by the NSW Office of Water, which sent a generic statement.  “Snowy Hydro operates within the conditions of its operating licence
and the NSW Office of Water ensures compliance,” the statement said.

“In response to a recent five-year licence review, both Snowy Hydro and the NSW Office of Water have increased the amount of information on operations available on their websites.”

Update: This article is now available on the website of The Daily Advertiser: http://www.dailyadvertiser.com.au/news/local/news/general/snowy-hydro-under-fire-over-water-release/2032134.aspx 

**********

Ben Glover from The Daily Advertiser in Wagga Wagga is the only person to have asked me directly for a copy of the Operational Plan.   Staff at both The Australian and the Australian Financial Review are aware of the story, aware of the leaked document, but so far have not followed-up or indicated that if I sent them a copy of the Operational Plan they may be too busy to follow-up or are about to go on Christmas holidays and couldn’t study it until January 5.   Prolific commentator at this blog, Polyaulax, has not  followed-up by asking for a copy of the document by phone or email.

Filed Under: News, Opinion Tagged With: Floods, Murray River, Snowy Hydro

The Whole Truth: Water Deliberately Dumped into Flooded Area

December 16, 2010 By jennifer

SNOWY Hydro chief executive, Terry Charlton, recently confirmed that water was dumped into the already flooded Murray-Darling Basin, but said the authority had little choice (The Australian, December 15, 2010, page 7).   A real time operational diagram, however, tells a very different story.

Last Wednesday, Snowy Hydro could have sent water into Eucumbene dam.  At only 20 percent it had a storage capacity of a whopping 4 cubic kilometres of water.

Instead, the water managers set the trans-mountain tunnels so water was flowing away from Lake Eucumbene at over 80 cubic metres per second (6,912 megalitres for Wednesday).

Water was filling Talbingo and forcing releases from Jounama pondage into the already spilling Blowering Dam, threatening the township of Tumut and adding to the crisis along the Murrumbidgee River.

As if this wasn’t enough, the real time operational diagram for Wednesday December 8, 2010, shows that this water, drawn from Eucumbene, was also being used by Murray electricity generators pushing even more water directly into the Murray Darling Basin.

“Mr Charlton was incorrect in saying that generation was only from inflows below Eucumbene last Wednesday, although they were large at the time,” a source told me this morning.

“Why weren’t Mr Charlton’s water managers pushing the water back for storage into Eucumbene from the Tumut system,” he asked.

Tumut River residents were issued with urgent evacuation orders last Thursday after the increase in outflows.

Desperate farmers phoned Snowy Hydro last week asking why flood waters were being sent west, rather than east to Lake Eucumbene, given this dam was less than half full, but their calls were ignored.

The Snowy Mountains Scheme was built for the storage and diversion of water with hydropower generation as a by product.

Current and past employees claim that the current board and management are now driven almost exclusively by money.

“The management are setting the business up for sale when the NSW government changes next year,” said one source. “They want the balance sheet to look as good as possible so [we] are generating [power] like mad, even when electricity prices are low and irrespective of downstream impacts.”

Filed Under: News, Opinion Tagged With: Floods, Murray River, Snowy Hydro

Save Lake Eucumbene’s Frogs

December 16, 2010 By admin

ANGLERS fishing Lake Eucumbene in late October 2010 were pleased to see that the rising waters of the lake had created perfect spawning conditions for the frogs. 

Frogs were in abundance and their future was assured through this massive spawning event, or so we thought.

By early November the water in the lake ceased rising and began to fall, yet the State was in flood and the rains continued, how could this be? 

More importantly anglers watched as the frog spawn was left high and dry.  The baby tadpoles yet to hatch suffered a miserable death by dehydration.  Caring anglers scurried around the lake margin; lifting spawn blobs and putting them back into the water, only to see the whole miserable cycle continue as the waters relentlessly receded. 

How many frog larvae died we will never know, but the receding waters killed far more frogs than any number of trout possibly could – even the deadly chytrid fungus would have been hard pressed to match this slaughter.

For the whole of November an early December the rains fell, the State flooded but Lake Eucumbene continued to fall. 

[Read more…] about Save Lake Eucumbene’s Frogs

Filed Under: News, Opinion Tagged With: Snowy Hydro

City Deal That Led to Water Waste: Ross Tyson

December 15, 2010 By admin

“AN ARCHAIC agreement hatched in the air-conditioned suites of a Sydney office block has exposed the kind of chronic mismanagement at government level that is driving local farmers to the point of despair.

“The revelation this week that Snowy Hydro is sending millions of litres of water downstream every day into overflowing dams and flood-affected towns along the Murrumbidgee River has left irrigators dumbfounded.

Read more at Area News.

  [Read more…] about City Deal That Led to Water Waste: Ross Tyson

Filed Under: News, Opinion Tagged With: Floods, Murray River, Snowy Hydro

Government to Finally Act on Bureaucratic Flooding

December 15, 2010 By jennifer

FINALLY, last night, the NSW government agreed to change Snowy Hydro Licence conditions which required water to be released into the already swollen Murrumbidgee and Murray Rivers –exacerbating the current flood crisis.  

The article in today’s The Australian newspaper (page 7), indicating licence conditions will be changed, quotes Terry Charlton, CEO of Snowy Hydro, denying that recent flooding was exacerbated by licence conditions.

This comment from Mr Charlton is disingenuous, contradicts comment he made to me in a telephone conversation yesterday, and also comment he made to former employees of Snowy Hydro at a meeting in Cooma on November 25, 2010, that even though Blowering and Hume dams were spilling, Snowy Hydro still had to release water from Lake Eucumbene because of licence conditions.

Filed Under: News, Opinion Tagged With: Floods, Murray River, Snowy Hydro

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Jennifer Marohasy Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation. Read more

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