Our First Half-Century: A Review of Queensland Progress Based Upon Official InformationQueensland
History
Our First Half-Century: A Review of Queensland Progress Based Upon Official Information
Queensland
Queensland -- History
Two official pages of the 1893 report are devoted to the "misuse
of water," a member of Parliament having already objected to the
application of the word "waste" to water allowed to flow unchecked
from bores. The aggregate capacity of the ten Government bores then
flowing was 5,000,000 gallons daily, all measured; while of the 137
private wells the flow was estimated at 100,000,000 gallons daily.
This total of 105,000,000 gallons would be equivalent to a rainfall
of 29 in. on 91 square miles of country. This was the rate of average
rainfall on the assumed outcrop of water-bearing country that supplied
the artesian area. And it had to be remembered that a part of this
rainfall of 29 in. had to be carried off by streams as well as by
evaporation, and therefore did not sink into the water-bearing strata
of the arid west. As to the extent of the outcrop, it was estimated
not to exceed one-eighth of a mile, with a total length of 1,600
miles, which meant a total supply of 200 square miles of water-bearing
outcrop area.[a] Arguing on these and other grounds, the report
contends that the falling off of the yield of many bores affords proof
that, wherever the supply comes from, the outflow already exceeds the
inflow. The Engineer can only regard as wasted two-thirds of the water
that now flows from the artesian bores in Queensland; indeed, adopting
the language of an American, "the waste is a crime against the
well-owner and against the State."
[Footnote a: For fuller particulars see Hydraulic Engineer's
Report for 1893, pages 5 and 6.]
CONTROL OF FLOW NECESSARY.
The Hydraulic Engineer adds that while he cannot assert that the
artesian flow is being exhausted, he yet holds that the flow ought to
be controlled by legislative action.[b]
[Footnote b: On this passage the Hydraulic Engineer notes
that, in 1891, a bill was introduced into Parliament by Sir
Thomas McIlwraith for controlling the artesian water supply,
and passed through the Assembly, but was rejected by the
Council. Since then no action in that direction has been
taken.]
IRRIGATION BY BORES.
The same report contains an interesting article on irrigation.
It points out that at the beginning of 1892 there were only 200
irrigators among the land cultivators of the colony, and that the area
irrigated was only 5,000 acres. It was believed that in the last year
the amount of land so fertilised had largely increased. Many of the
plants and distributing apparatus were of a most primitive kind.
"Some are expensive, others badly erected, and not a few are of a type
ill-adapted to the object in view."
Public-domain text, read in full here on John Shaqi.
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