Labor stops making wood but insists fracking can still be safe in SA's famous Limestone Coast
by PHILIP WHITE
For a moment Dirty Harry
was in my bedroom. That edge of slumber thing where dreams dance in and out of
wakefulness. There stood Clint, lightin' up a Lucky and blowin' the smoke off
his .44.
In his best 'make my day'
voice, he half-whispered:
"We believe that
fracking can be safely carried out, provided there are strict environmental
safeguards."
It was the South Australian Labor Premier Jay
Weatherill (above) coming outa the morning wireless. He was in Mount Gambier, the biggest town in South Australia's famous Limestone Coast wine region, for a
Country Cabinet community forum. Turned out that maybe 40 of the 300 citizens
who rocked up were outside the hall demonstrating against the petrochem
exploration and drilling that's been going down in their countryside. I
understand there were more questions along the same lines inside. Many of the
Limestone Coast winery people are very worried.
Their district contains the wine regions of Bordertown, Padthaway, Wrattonbully, Robe and Coonawarra.
There are lots of different sorts of subterranean water beneath the Limestone Coast. The caldera of the dormant Mount Gambier volcano contained four lakes until the region's greedy irrigators dried two of them out through their bores, lowering the region's water table over the last 40 years. These two, the Blue Lake and Valley Lake, remain.
The intricacies of soft or
shallower rock fracking and deep stratigraphic exploratory drill holes are
complex and disparate, but this took me back to the early 'seventies, when as
young Department of Mines and Energy missionaries, my boss and I took a display
caravan to the south-east - now called Limestone Coast - to explain to the
grape farmers that the days of haphazard, relatively shallow water-bore
drilling through the Coonawarra aquifers were over: bad water aquifers were
leaking into good water aquifers and things were in a mess.
Very tight regulation was
the new thing: permits were now required, and rigid guidelines set for drillers.
Penalties were imposed on
law-breakers. Extant bores, and their water, would be closely monitored; old broken
ones sealed and capped.
Under the enlightened
leadership of Premier Don Dunstan and equally astute Mines and Energy Minister
Hugh Hudson, South Australia suddenly led the world in underground water
conservation.
I'll never forget the
haughty disbelief, even disdain those wine blokes showed us. They were 100 per
cent blokes then; blazers, moleskins and striped shirt type blokes. Some of
them are still there. We were merely pesky gubmint interferists. But the
message gradually sank in over the many years, and now some of the winery
folks, and others, are experts at the local subterranean realities.
Today, government people
are adamant that fracking is not on the cards. Yet.
They correctly point out
that not even the energy explorers with approval to drill have applied to frack
anything, but it seems that while the cabinet has at some recent time been told
such things are more than possibly safe, the folks in the Limestone Coast Protection Alliance have been doing their groundwork. They're certainly not all
merely half-informed and feverish. Some appear to know a lot more than many key
government figures about the dangers, short-term and long, of drilling holes into
the Earth's crust.
Not to mention fracking in
naturally saline environments, like the ancient seabed limestones of their
region.
Typical Coonawarra soil profile: thin Terra rossa over calcrete and old seabed limestone, which is highly porous ... while the Coonawarra stuff is younger, the limestone of the Mallee and Limestone Coast is up to 35 million years of age and can retain much ancient marine salt, much of it many times more salty than today's ocean ... photo Milton Wordley
"We only support the
safe mining and exploitation of natural resources," the Premier had continued,
"so we would never let there be approvals for any processes that would
damage our precious natural resources - including our water resources - which
are such a crucial part of the South East economy.
"We'd insist on that
if ever there were to be an application to do such a thing here.
"But all there is at
the moment are propositions. There are no current applications which are live,
but when they are they'll be getting the strictest possible evaluation."
The Premier's timing
wasn't the best. Only the day before the Australian Greens had confidently
announced their Renew Australia policy, their detailed plan to limit
Australia's energy use to at least 90 per cent renewables within fifteen years.
If fracking were permitted
in the region, fifteen years should be enough time to show clearly the validity
of this government's stance.
Strange things happen down
in that crust. The Premier's measured optimism brought to mind one of the region's
first deep stratigraphic bores, Caroline No. 1, which was drilled in 1966-67 in
the hope of finding oil or gas. Alliance Oil had been granted a permit to drill
into the promising Otway Basin, on a dead-end road in an out-of-sight spot in
the forest 12 kilometres south-east of Mount Gambier.
At 2,500 metres, they hit
paydirt. Or gas. There was whoopin' and hollerin' until they discovered the
stuff gushing up their hole wouldn't burn. Instead, it extinguished flame,
along with the drillers' eureka glee. It was CO2: carbon dioxide. Since then,
the well has produced an average of 65 tonnes of CO2 per day. Sometimes she
gushes more than 100 tonnes.
While it's all sold
profitably by Air Liquide Australia, which is listed on the Paris stock
exchange, that's just one hole releasing all that CO2, eventually to the
atmosphere, without even having to burn petrochem of any sort. So far, that hole drilled by hopeful oilers has given us 1,000,000 tonnes of CO2.
Lots of surprises can be
encountered down there in the crust.
But winemakers, and not
just the Limestone Coast crew, have similarly pressing issues to address, and as
far as we know, these are much closer to the surface.
Take the government's
contentious sale of the pine forests of the Limestone Coast. While Premier
Weatherill pointed out that the "forestry and forest products sector is
now employing more people than it was four years ago when people were
predicting dire consequences as a consquence of the sale," those forests are
a major source of the countless millions of trellis posts we see in vineyards
all over Australia.
These posts are sometimes treated
with creosote, which is downright poisonous, but most often with copper
chromated arsenate (CCA), which is worse.
'Minimal' pruning in Coonawarra ... mainly done mechanically, and much cheaper than hand pruning, it leaves all that messy wood in the foliage crown ... this hosts many bugs and moulds, making more fungicides and pesticides necessary ... these vines are trellised on copper chromated arsenate posts from the local forests which Labor recently sold.
In the region in which I
live, McLaren Vale, there were about 7,500 hectares of vines last year. At an
average of 600 posts per hectare, we have somewhere around 4.5 million posts.
These wear out, harvesting machines break them, new ones are required for new
plantings, old ones pulled out and stacked. Apart from a few new vineyards using stinking
creosote, like Treasury Wine Estates seems to prefer in some locations, as in
their newer Coonawarra and McLaren Vale vineyards, these posts are largely CCA
treated.
There are about 140,000
hectares of vineyards in Australia.That makes something like 84 million of
these bloody posts. In the ground. Only the Devil knows how many old uprooted
ones are stacked to rot, and where.
In its Environment
Protection Agency Guidelines (2004), the same government which grew many of these
posts in the Limestone Coast forests clearly states "an economically and
environmentally sound disposal technology for large quantities of CCA waste
timber is not available in South Australia at this time."
Pine forest on the Limestone Coast: a field group examining rehabilitation trials after harvesting ... photo PIRSA
As far as my research
reveals this is till the case. You're not permitted to burn them or bury them. You're
not supposed to let them get wet. But they're stockpiled in vineyards all over
Australia. Piled up out the back somewhere: behind the shed or where the old
fridges and washing machines go to die. They're given away for folks to use in
their veggie gardens, even used for playground construction. They get chipped
and used to stop the growth of plants. They go into landfill.
So there's an important
environmental issue that the Limestone Coast, as a prime source of the stuff,
must address the same as every other wine region in Australia, as consumers of
these things.
So far, it seems to be
largely an above-ground problem. Nobody that I know of has properly researched
what happens when this poison goes undergound, into the water the concerned
citizens of the Limestone Coast are increasingly keen to protect and preserve.
"This is one of the
great food and wine districts," Premier Weatherill said in Mount Gambier.
"Not only of the nation, but of the world. And of course the traditional
strengths of the pastoral industry. And
the forestry and forest products sector ... there's a rosy future for the South
East and we want to find ways in whch we can continue to assist this community
to grow."
Dirty Harry might have to
get a lot damn tougher.
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