SYDNEY WATEE SUPPLY BY GEAVITATIOI^. 45 



on to the intake at the mains, sxtcIi waters being further supple- 

 mented on their way thither by the head sources of the Waranora 

 Eiver. 



Thus I show means of obtaining storage ground equal to more 

 than 2,000 acres, with power of still further supplementing such 

 storage very considerably and to an almost unlimited extent 

 from the grand upper slopes behind BuUi, Wonona, Mt. Eliera, 

 and even Mt. Kembla, and for more than 20 miles southwards 

 .if required ; all which supplies can be made to enter the pro- 

 posed artificial lake at the Loddon swamps. All these waters, 

 even from the furthest point south and at the inlet of the Loddon 

 tunnel, would be within seven (7) miles of the intake of the high 

 delivery mains. I believe that with such splendid catchment 

 grounds, which would ever be supplied by nine (9) constantly 

 running streams and by the frequent freshes, that we should 

 secure water enough from thence alone for the full supply of 

 Sydney in all seasons. But by the sequel it will be shown that 

 the above-named supplies are not more than one half, or perhaps 

 more than a quarter of the waters that I propose to secure for 

 leading into Sydney when required. 



At this stage of my paper, I deem it to be desirable to state 

 that, having been over forty years uninterruptedly a resident in 

 this Colony, I have witnessed the most frightful droughts, some 

 of nearly three years duration ; I have repeatedly seen the 

 !N"epean Eiver, at the Cow-pasture or Camden Eiver bridge, 

 nearly dry. I have seen hundreds of water-carts in Sydney, filled 

 at the Ultimo estate waters of former days, at the cost of 3d. 

 per bucket prime cost ; and during the great drought of 1839 I 

 crossed the usually fine Murrumbidgee Eiver dry-footed, at the 

 ford above its junction vsdth the Tumut Eiver ; therefore, I hope 

 I may be trusted for not advancing any measure for a water 

 supply for Sydney that should not Fe safely ready to meet the 

 worst of such contingencies under such parallel circumstances 

 which may at any time recur. 



With such long experience before my mind, I cannot, therefore, 

 be satisfied v\T.th the running waters and immense storage 

 supplies of the before-named sources at the head of the Loddon, 

 the head of George's Eiver, and the head of the Waranora 

 Eivers ; we must have far more. In ordinary seasons we should 

 be able to deliver not less than about 3,000,000 gallons daily into 

 Sydney, from the head sources of Port' Hacking Eiver alone, and 

 this supply can practically be supplemented to almost any extent 

 by the surplus and over-flow waters which might be made to pass 

 the high delivery mains. The total amount from this united source 

 need not be less than 6,000,000 gallons daily. In order to eff"ect the 

 above-mentioned increase of supply from the more southern out- 

 lying country, I propose that we should avail ourselves still 



