The drought affected city of Toowoomba may be forced to take millions of litres from Brisbane's water supply via a yet-to-be-used pipeline.
Toowoomba's three dams were at 35.7 per cent on Thursday – the lowest level since before the 2011 floods.
When the level falls below 40 per cent, the Regional Council is permitted to take water from Wivenhoe Dam – the main reservoir for Brisbane and Ipswich – via brand new $187 million Toowoomba Pipeline.
The city council hasn’t pulled the lever on the 38-kilometre pipe in the nine years since being laid, but discussion on how to proceed will begin next week.