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Usually fairly fresh water is used for hydraulic fracturing and about half of it is produced back. Most of the rest appears to be trapped by capillary forces in the nano-pores of the shale systems. So, how much is available for polluting and what is the composition of the contaminants you are worried about? Is the contaminant transport by convection or by diffusion?
How deep are the oil and gas shale? What is the maximum depth of fresh water in your area? Does the government in your area require casing and cement, as in most of the world?
CQ de W5ALT
Walt Fair, Jr., P. E. Comport Computing Specializing in Technical Engineering Software
The outback of South Australia is evil - pure and simple - seems a match made in heaven.
It uses good water for to help fracking and will pollute and contaminate ground water reserves.
And there is the nub of the matter - there is no water in SA, so f'all will happen. Or we could just leave it all there for when the Chinese take over. They wont care about a little bit of enviro-damage.
And the local greenies will build a protest camp and every bogan without a job or a worthless BA in arse scratching will turn up...
Typical when it comes to progress in this country.
I don't speak Idiot - please talk slowly and clearly
Recently Micheal Dell has said that the company is morphing into a services firm to compete more with IBM, rather than take on Lenovo and its hardware. This would be a major de-emphasis on the PC. Dell PCs would still be sold, but not headlined.
It appears Dell is now trying to privatize. Marketing the company to private equity investors.
Rumors are that Microsoft may be interested in a stake ($3 billion is being mentioned).
My predictions (If Microsoft does in fact buy a big chunk of Dell):
Within a year or two the hardware business is spun-off to Microsoft completely.
Microsoft branded PC's are born.
Microsoft stores pop-up near every Apple store.
One or two of the big PC makers abandon ship completely or switch to Chromebooks (or similar).
Linux zealots claim yet again that this is their time to shine. Market share rises from 1.35% to 1.36%.
Most of the hardcore Microsoft zealots / Apple haters here at CP rave about how wonderful it is to get hardware and software from the same source.
Government is not reason; it is not eloquent; it is force. Like fire, it is a dangerous servant and a fearful master. ~ George Washington