Re: Disposal of Radioactive Waste

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#103

From: Fred McGalliard
Date: Mon, 15 May 2000 00:00

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indigo wrote:
...
> Some years ago I walked in a salt mine which geologically had not been
> infiltrated by groundwater since the Triassic period or >100 million years.
> The frequency of transfer of water into that salt formation is
> <1:100,000,000 per year.  How can anyone say that there are no areas where
> there is an extremely low chance of groundwater contamination? 

Also, ground water, as such, does not travel through solid rock, and
will not travel very far below the surface at all. Drill a shaft, or let
the disposal unit drill it' own shaft, down to about 3-4 miles, and
ground water is not a likely problem. I thought the most interesting
disposal schemes involved injection into the subduction zone. The
material comes back then promptly after a few hundred thousand years or
so, thoroughly mixed with the rest of the molten lava.

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From: Fred McGalliard <frederick.b.mcgalliard@boeing.com>
Subject: Re: Disposal of Radioactive Waste
Date: 2000/05/15
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