LXXXII. REVIEW OF WATER CONSERVATION IN N.S.W. 
Oreeks, so that the bulk of its flow is really spilled over 
the country. The works constructed up to the present 
time are:—A weir in the river with a cutting into Booberoi 
Creek, a cutting into Lake Cudgellico for storing flood water 
in the lake, the effective capacity being 1,000 million cubic — 
feet, a weir in the river and a cutting into the Willandra 
Creek, this supplies the country between the Lachlan and 
the Darling. A very limited amount of irrigation only is 
practicable from the Lachlan, and thei olated areas which 
are irrigable are too small to justify the construction of 
gravitation canals. 
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The Lachlan frequently stops running in dry seasons. 
The flow below Booligal ceased some 14 months ago and is 
still now dry, there has been no flow past Hillston for the 
last 12 months. It is proposed to conserve the supply by 
means of a series of low weirs in the river, these will form 
pumping pools for the limited amount of irrigation which 
can be practised. When the demand for water has increased, 
a storage could also be constructed at the head of the river, 
and its water could be used to replenish the pools. The 
site for the storage has keen surveyed below the junction 
of the Abercrombie River, its capacity is 12,000 million 
cubic feet. 
The Bogan River has an effective catchment of 5,000 
square miles. The fall in the channel decreases from 15 
inches per mile at Dandaloo to 12 inches per mile at the 
Darling. The channel is wide and shallow, and runs only 
at long intervals. It is doubtful if there is sufficient water 
available for any irrigation beyond small gardens or orchards 
for household purposes. Proposals are in hand for the con- 
struction of weirs in the river channel, this is the only 
means of conserving water on this river. | 
The Darling River has an effective catchment of 105,000 
square miles. The fallin the channel decreases from about 
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