BOLD - Issue 3: Jan/Feb BOLD - Issue 3: Jan/Feb | Page 13

Behind the Scenes :

Toowoomba Region water supply

The drinking water for Toowoomba and the surrounding towns of Oakey , Jondaryan , Haden , Crows Nest , Highfields , Kingsthorpe , Gowrie Junction , Meringandan , Westbrook and Goombungee is currently supplied by three local dams , Cooby , Perseverance and Cressbrook , a growing number of bores and the Wivenhoe Dam pipeline .
The pipeline from Wivenhoe Dam ( SEQWater ) provides security of supply when the rainfall in our dam catchments is insufficient to maintain supply to meet the region ’ s growing needs .
The Perseverance Dam tower line shaft .

Fast facts :

• Toowoomba Region ’ s Perseverance Dam built in 1965 has the longest continuous shaft in the Southern Hemisphere . It ’ s estimated to have pumped 48.6 billion litres – that ’ s approximately 19,440 Olympic-size swimming pools since the ‘ 80s . Its total catchment size is 110km 2 with 30,140 ML of storage available
Communication conduit at Perseverance Dam .
• Cooby Dam ’ s total catchment area is 159km 2 and maximum available storage is 21,166 ML ( megalitres )
• Cressbrook Dam is the largest and newest of the three water supply dams with a total catchment area of 320km 2 and a full water supply useable capacity of 78,847 ML .
For more info on your water supply , visit www . tr . qld . gov . au / watersupply or find out more about our water education tours and visits by calling 131 872 .
The two pump discharge valves manifolding into a common rising main at Perseverance Dam .
BOLD . www . tr . qld . gov . au / bold
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