While not all mine water is chemically suitable for fracking and a mine discharge has to be close enough to a well pad to make transport via truck or pipeline economical experts believe Pennsylvania has more than enough polluted mine water to meet the needs of the drilling industry.
Contaminated water has been abstracted and treated from the mine since 1992 following an drainage burst which caused visible pollution from mine water coloured orange by the high iron content.
They are encouraging drillers to use tainted coal mine water to hydraulically fracture gas wells in the Marcellus Shale formation, with the twin goals of diverting pollution from streams and rivers that now run orange with mine drainage and reducing the drillers' reliance on fresh sources of water.
Supt Phil Davies said though there was water in the mine, there was nothing preventing access.
Pumps are continuing to remove water from the mine and oxygen is being pumped in.
Richard Kasunic, a southwestern Pennsylvania Democrat who's co-sponsoring legislation to spur the use of mine water in fracking.
At Wheal Jane, the extra pump is part of efforts to help stop water from the mine overflowing and polluting the Carnon valley.
The legislation would remove what had been seen as a barrier for drillers wanting to use coal mine water: the state's Clean Streams Law.
The water from the mine is contaminated with a range of metals which, untreated, could impact on shellfish and other ecology in the Fal Estuary.
Each day, 300 million gallons of polluted mine water enters Pennsylvania streams and rivers, turning many of them into dead zones unable to support aquatic life.
The miner currently being treated in hospital had walked from the pit to tell rescuers of dragging and swimming through the water to the mine entrance.
Mr Thomas said water in any mine would be a risk but when the mine operator applies for a licence to work a particular reserve of coal, there is a national database with records showing where that seam had been worked before.
In fact, the mine design submitted to the Salvadoran authorities would set a new precedent for water protection for any gold mine in the Americas, including the United States.
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It also plans to supply an industrial park and homes in Nottinghamshire using water in a disused mine.
Contaminated water from an abandoned mine in mid Cornwall could spill into a nearby river if levels continue to rise, says the Environment Agency.
BBC: Concern contaminated Wheal Jane water may pollute river
The water from Wheal Jane mine is contaminated with a range of metals which, untreated, could impact on shellfish and other ecology in the Fal Estuary.
Walter Herrera, quality control and risk manager for the Chilean mining company GeoTech, has said his company was bringing a specialized device typically used for boring water holes to the mine.
Of course, there is a difference between your friends being paid to endorse products (as in the story of the fictional vodka) and marketing campaigns that successfully target your friends (as coconut water apparently has with mine).
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The skyrocketing price tag relates to infrastructure needed to deliver water and electricity to the mine.
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They say the mine will pollute water and force people off their land.
As excess water runs deeper into the mine it evaporates and forces dust to settle and above all lowers the temperature.
"The community does not want to use water that comes from the mine, even though it's treated and certified, " he said.
The company said the closure was necessitated by weak volcanic rock above the ore deposit which allowed water to flow into the mine.
Mine rescue teams confirmed that the four miners at Gleision Colliery were trapped by water after they broke into an area of old mine workings.
Contaminated water levels at a flooded disused mine in mid Cornwall have improved, the Environment Agency has said.
That project has met opposition by groups that say the mine will contaminate the local water supply.
Elsewhere, an extra pump has been brought in to help stop water from the old Wheal Jane tin mine overflowing.
"There is not a blockage issue in the mine, it is a water issue which we are currently trying to drain, " he said.
Water drilled from rock in a North American mine is among the oldest yet found on Earth, say scientists.
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