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Whilst the operations above-described in progress, a large number of prickings with Norton tubes (1971) in all) were made all over the site of the dam, the result of which was
to confirm the information obtained from N° 2 Well and the borings formerly taken. They showed he presince of a hard layer presumed to be rock,
archage depth of about 40 feet
at an aver
entire area.
over the
3
as
The information obtained from No. 7 Well creates serious doubts as to the reliability of that derived from Ne 2 and operations are now in progress to verify the latter as completely possible. It is of course possible that Me 3 Wilk has penetrated some hole in the rock, which, if it resembles that appearing in the bed of the stream higher up the valley, must be of a very rugged and irregular character.
Attention has been turned to the worth a sites, marked N 2 and 3 on the accompanying plan, and operations are in progress at both of these, but it will be some time before they be reported upon.
results
As it appeared obvious from the recen!
Can
of
the trial works that a lengthened period must exxpse before a scheme for the low- -level dam could be definitely prepared, submitte and carried out, it became neces
necessary to consider what could be done by way of a scheme which.
would
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