It insists that the Chinese walls separating its traders and bankers are always impermeable.
The landfill sits on a natural foundation of London clay which is more or less impermeable.
Landfills without the benefit of a naturally impermeable layer use plastic liners and imported clay.
But we'd like them to be applied in a way that makes them practically impermeable.
He says the Bakken has a layer of nearly impermeable shale that sits above the oil-bearing reservoirs.
It is hard to see how any incumbent of Canterbury could cope with these contradictions, however impermeable his hide.
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Unemployed youth can only watch, debarred from jobs filled under impermeable patronage arrangements.
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The Star Wars plan, designed to build an impermeable umbrella over all 50 states, was the most ambitious version.
Fracking takes place thousands of feet below the water table, and fracking zones are typically separated from groundwater by fairly impermeable rocks.
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To begin with, the vertical depth separation between drinking water aquifers and reservoir targets for gas production is several thousand feet of impermeable rock.
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The impermeable membrane is a thick plastic that can contain leaks.
No system is completely impermeable, I think everyone would accept that.
The islands are isolated from their environment by an impermeable membrane which is laid all across the island, which makes it completely separated from the sea and the seabed.
Cement forms an extremely strong, effectively impermeable, seal from a thin slurry that can be pumped pretty easily anywhere, and is the ideal material for this purpose ( Cementing).
However, the shale rock containing natural gas is separated from underground water aquifers by impermeable layers of rock that do not allow any hydraulic fracturing fluids to migrate into underground water aquifers.
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The industry argues that this is highly unlikely, as the fraccing takes place a mile or more below drinking water aquifers and is separated from them by thick layers of impermeable rock.
Israeli law strictly forbids Israeli citizens from visiting the main Palestinian cities, but they can drive straight into Ramallah and Hebron without being challenged, while other cities, such as Jericho and Nablus, remain impermeable.
The Times of London still sits behind an all-but-impermeable paywall, erected a year ago, that has not only devastated web traffic but coincided with a major drop in print circulation as well.
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Gaby Mitchell, is set in rural Tennessee in the nineteen-thirties, and it looks a treat, down to the last button too much of a treat, perhaps, for what begins as a study of impermeable loneliness.
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