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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