CHAIRMAN’S ADDRESS. XLVII. 
up to 50 million gallons per day, and when delivering that 
quantity, the cost per million gallons at Bankstown will 
be about the same as by the existing works; but to the 
higher levels of Stanmore, Ashfield, and Penshurst, which 
are depending on pumped water, the cost per million gallons 
would range from half to a quarter of what it is at present. 
If a separate fire service be laid throughout the city, the 
pressure would be sufficient to enable the water to be 
thrown over the highest buildings ever likely to be con- 
structed without the aid of fire engines. 
The Woronora Scheme.—Briefly the scheme is to con- 
struct a dam capable of impounding 7,500 million gallons, 
just below the junction of the Waratah rivulet with the 
Woronora river, the top water level being 510 feet 
above sea level. The catchment area above the dam 
is 29 square miles. The country being of a similar 
character to that of the Cataract, and with a rainfall 
at least equal to it, if not superior. Assuming the 
average rainfall to be only 50 inches per annum with 35% 
run off, the reservoir would be filled in 12 months. A steel 
pipe to be laid from the dam through a tunnel into George’s 
River valley, and thence along the flats of the Holdsworthy 
Hstate opposite Liverpool, crossing George’s River near 
its junction with Prospect Creek, and thence along the 
main road to Bankstown, which would be the main dis- 
tributing centre. To supplement the storage at Woronora 
and double the catchment area, a tunnel about 44 miles 
long can be constructed from the Woronora reservoir to the 
junction of O’Hare’s and Stokes’ Creek, where a second 
dam can be built impounding 2,000 million gallons, having 
atop water level of 654 feet above the sea level. The 
catchment area is 30 square miles, of similar country to 
that of the Woronora, and almost wholly unoccupied. 
Ultimately, when the city requires more water at high 
pressure than the scheme can afford, a tunnel about 34 
