!
so as to leave no store of water in
the valley
where the
are
that portion of pipes are laid, the gaugings therefore practically those of the dry weather flow of the subsoil waters.
15.
During
the whole time.
continuous pumping
تریج ام لا
going
or
the water rose to the surface a few
feet higher up termination
being
20
of
the
valley
than the
the pipes, the sand.
compact
as to prevent the
water flowing sufficiently rapid to materially reduce its level beyond the actual point of its collection.
More water would probably
16.
a limited period by the drains up the
be obtained for further extending
valley but such extension must be done with caution or the store of underground water in the upper
portion of
the
valley
will be drawn
on to such an extent during the
early part of
the
dry
555
as to
materially diminish the flow of water towards the latter part of it.
17. the valley
The dam constructed across
on the
valley at C is founded
practically impervious stratum under.
the sand and
lying
February
in t
Loo
was completed
Eate to materially
waker
but it will
affect the flow of underground
to the sea this.
doubtless
play
year
atr
important part in
the future specially at the commence.
ment
of
the
dry
seasorv.
field of Drainage Area.
Considering
"the several
points referred to in the foregoinge
of opinion that
average dry
during
season these works
be relied on to give.
may
a minimum
supply of 100,000 gallons of water per
dieur.
Quality of Water. _
early
19.
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