Talk:Great Artesian Basin

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Remove strange link to http://www.hawthornfc.com.au/ at the head of the article.
Revise the article as the above mentioned strange link may be evidence of some vandalism. — Preceding unsigned comment added by 95.160.133.236 (talk) 16:50, 12 August 2015 (UTC)[reply]

Comments

8.7 million cubic metres of water sound way too low Gtoomey 01:21, 2 September 2005 (UTC)[reply]

Quote: It is the source of most of the water used in these areas. The basin is an important source of water for cattle raising. Whilst unsuitable for irrigation, it is adequate for stock and domestic usage (with treatment) and is thus vital to human activity. To tap it, bores are drilled down to a suitable rock layer, where the pressure of the water forces it up, mostly without pumping. Additionally, water at 98°C (208°F) from the basin is used to power a small 150 kW generator in Birdsville.

In 1983 there were close to 18 000 bores providing 1575 million litres of water. This included just under 2000 freely flowing bores and more than 9000 that required mechanical power to bring water to the surface.

I guess this means that of 11000 bores, 2000 don't use a pump and 9000 do use a pump. But the whole lot is unsourced anyway so who'se counting? 05:39, 28 March 2006 (UTC)

I disagree with the assertion that "nothing has been done". More than half the free flowing bores have been capped in recent years, and all should be capped and piped within the next ten years. This has cost hundreds of millions of dollars. Limitations on new drilling have been in place for decades. In general it appears the contributors to this article have no idea about what they are talking about when it comes to the management of the GAB, and also have little idea about the realities of sustainable groundwater management. If this were not the case, it would be reasonable to expect that there would be more than a simple one liner asserting that nothing has been done!

If it takes two million years for groundwater to enter Lake Eyre, please back that up with credible sources showing at least microscale piezometer readings of groundwater flow in that half of the basin. I can't take that measure of time seriously if a couple sentences ago it states "Because the sandstones are permeable, water gradually makes its way through the pores between the sand grains, flowing at a rate of one to five metres per year." Even at the lowest flow of one meter per year, that would require a distance of two thousand kilometers of travel through pores. —Preceding unsigned comment added by 75.155.222.153 (talk) 05:04, 1 March 2010 (UTC)[reply]

Exactly correct. if you take a look at a map of the basin you will see that the basin is 1,800km from east to west at its widest point. Added a academic journal reference for the age of the water.--GILDog (talk) 11:40, 1 March 2010 (UTC)[reply]

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