Woman watering tree

Water is one of our most precious resources. There is a finite supply of fresh water and unfortunately even when it rains, it doesn't mean that our dam and groundwater levels will increase unless the water actually falls in our catchment areas. 

To ensure long term water security it's really important we all do our bit and become smarter with our water use. 

 

Current water supply sources

Our main water supply sources are:

  1. Dams: We have three dams - Cressbrook, Cooby and Perseverance. More information about these can be found in the sliders below.
  2. Bores: We have 47 bore stations. Bores access groundwater and contribute approximately 20-30% of our water supply.
  3. 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. Once the capacity of Cressbrook dam falls below 40% we can start using water from Wivenhoe Dam.

Cooby Dam is the oldest of the city's three water supply dams, constructed during the period 1938-41. This dam is located about 17 km north of Toowoomba on Cooby Creek, a tributary of Condamine River.

Storage statistics

  • Total catchment area = 159 km2
  • Storage area = 306 ha (full supply)
  • Maximum available storage = 21,166 ML
  • Dead storage = 1,462 ML
  • Approximate evaporation = 5.2 mm/day
  • Full water supply useable capacity = 19,703 ML
  • Depth (overflow - dead water level) = 12.5 m

Old video footage of the Cooby Dam construction has recently been found. It's a fascinating peak into what life was like in the construction field 80 years ago.

Cressbrook Dam is the largest and newest of the city's three water supply dams. The dam is located on Cressbrook Creek approximately 10 km downstream of Perseverance Dam. The construction of the dam was commenced in 1981 and was completed in 1983.

Storage statistics

  • Total catchment area = 320 km2 (including Perseverance)
  • Storage area = 517 ha (full supply)
  • Maximum available storage = 81,842 ML
  • Dead storage = 2,995 ML
  • Approximate evaporation = 5.4 mm/day
  • Full water supply useable capacity = 78,847 ML
  • Depth (overflow - dead water level) = 34.0 m

Perseverance Dam is the second largest dam in terms of storage capacity, and the second oldest storage dam of the city's three water supply dams. Construction of this dam commenced in 1962 and was completed in 1965. This dam is located approximately 35 km northeast of Toowoomba on Perseverance Creek, which is a tributary of Cressbrook Creek. 

Storage statistics

  • Total catchment area = 110 km2
  • Storage area = 250 ha (full supply)
  • Maximum available storage = 30,140 ML
  • Dead storage = 3,207 ML
  • Approximate evaporation = 4.1 mm/day
  • Full water supply useable capacity = 26,893 ML
  • Depth (overflow - dead water level) = 23.1 m

The Wivenhoe pipeline, operational in 2010, ensures that the local water infrastructure keeps pace with the needs of the community. When utilised, the water from Wivenhoe Dam is lifted more than 200 metres to Cressbrook Dam and then has to be lifted another 425 metres to be treated and ready for use in homes and businesses over 600 metres above its source.

The three dams (Cooby, Cressbrook and Perseverance) and bores in the Toowoomba Region have been able to adequately supply a population of up to 125 000, businesses and industries, but the continuing population growth may mean water will need to be drawn from Wivenhoe Dam in the future.

Pipeline details

  • Length: 38 kilometres from Wivenhoe Dam to Cressbrook Dam.
  • Capacity to deliver water: 14,200 megalitres per year with an ultimate capacity of 18,000 megalitres per year.
  • Pump stations: two pump stations at Wivenhoe Dam and an advanced electronic system to ensure remote operation.
  • Built by: LinkWater Projects and fully operational by January 2010.

More information about the Wivenhoe pipeline can be found on our Wivenhoe pipeline FAQs page.

 

Water supply sources for your area

As you travel around the Toowoomba region, the water you use comes from many different sources and the water conservation levels will fluctuate depending on the water demand for the area.

For information about water pricing and charges refer to the Water rates & charges article.

Cambooya water supply zone map.

  • Water supplied by bores and the Cecil Plains Weir.
  • Services a population of 269 through 164 connections.
  • Water restrictions apply.

Cecil Plains water supply zone map.

Clifton water supply zone map.

Greenmount water supply zone map.

Haden water supply zone map.

Kulpi water supply zone map.

  • Water supplied by bores and the Cecil Plains Weir.
  • Services a population of 1548 through 791 connections.
  • Water restrictions apply.

Millmerran water supply zone map.

Nobby water supply zone map.

Pittsworth water supply zone map.

  • This is the largest system in the Toowoomba Region.
  • This system primarily sources water Cressbrook, Perseverance and Cooby Dams. Additionally, limited backup supply is provided by Wivenhoe Dam. The Toowoomba City area is also supplemented by local groundwater bores.
  • A pipeline from Wivenhoe Dam to Cressbrook Dam provides security to this system. Once the capacity of Cressbrook dam falls below 40% we can start using water from Wivenhoe Dam. 
  • Water restrictions apply.

Toowoomba bulk water supply zone map.

Vale View water supply zone map.

  • This system primarily sources water from Boondooma Dam. Intermittent supply is provided by Ted Pukallus Weir.
  • Services a population of 940 through 508 connections.
  • Water restrictions apply.

Yarraman water supply zone map.

 

Water vision 2050

Water security for the long term has been a focus for many years and remains a key priority. Working with the State and Federal Governments and our neighbouring councils, we have a water vision that will guide our planning and activities in the next thirty years. We call this the Water Vision 2050.

The Water Vision 2050 Report (9Mb PDF) provides an overview of the Toowoomba Region water supply system, the challenges faced and opportunities available. Importantly, it outlines options to ensure our current and future water supply issues are met. Water Vision 2050 serves as our water security strategy and is scheduled to be routinely updated and added to as planning continues.