Toowoomba region water supply - dams and bores

Cooby dam

The Toowoomba region utilises drinking water from many different sources.  We provide information about the water supply for individual areas.

Toowoomba bulk water supply

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. Check current dam levels and the related documents for consumption and rainfall details.

Bores have been drilled into the Great Artesian Basin and the water transferred as required into Cooby Dam to supplement supplies when needed.

We have three large dams that provide some of the water supply for the Toowoomba region. These dams are Cooby Dam, Cressbrook Dam and Perseverance Dam.

Cooby 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. The storage statistics of Cooby Dam are as follows:

  • total catchment area = 159 km2
  • storage area = 306 ha (full supply)
  • maximum available storage = 21,166 ML
  • dead storage = 1,462 ML
  • full water supply useable capacity = 19,703 ML
  • full water supply level at spillway = RL482.2 AHD
  • depth (overflow - dead water level) = 12.5 m


Cooby Dam's lowest useable storage volume was recorded at 8% in January 2010. Following the rains of January 2011, Cooby Dam's storage volume reached 100%.Two brochures on Cooby Dam are available. These are the Cooby Dam general information brochure and the Cooby Dam self guiding walk brochure including a historical background and details on the dam wall, spillway, destratification unit, intake tower and pump station. For further information or if you require a copy of the brochures, contact us.

Cressbrook Dam

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. The storage statistics of Cressbrook Dam are as follows:

  • total catchment area = 320 km2 (including Perseverance)
  • storage area = 517 ha (full supply)
  • maximum available storage = 81,842 ML
  • dead storage = 2,995 ML
  • full water supply useable capacity = 78,847 ML
  • full water supply level at spillway = RL 280.00 AHD
  • depth (overflow - dead water level) = 34.0 m

Cressbrook Dam was first pumped in November 1988 when it reached 67% of its full capacity. Since 1988, it has had an average useable storage volume of 71.8% of its full capacity. The dam's lowest storage volume on record was 7.5% in February 2010.

Perseverance Dam

Perseverance Dam is the second largest, 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. The storage statistics of Perseverance Dam are as follows:

  • total catchment area = 110 km2
  • storage area = 250 ha (full supply)
  • maximum available storage = 30,140 ML
  • dead storage = 3,207 ML
  • full water supply useable capacity = 26,893 ML
  • full water supply level at spillway = RL 446.08 AHD
  • depth (overflow - dead water level) = 23.1 m

Perseverance Dam filled immediately on completion and has an average storage level of about 80%.

Wivenhoe Dam

The Wivenhoe pipeline, operational in 2010, ensures that the local water infrastructure keeps pace with the needs of the community. 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 surface water storages of Cooby, Perseverance and Cressbrook Dams and water from bores in and around Toowoomba have been able to adequately supply a population of up to 125,000 and associated businesses and industry. The pressure of the population growth of Toowoomba and surrounding areas within the region combined with a prolonged drought led to the Toowoomba bulk water supply dropping to just below 8% capacity in early 2010.Pipeline facts: 

  • 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.
  • cost: $187 million.
  • built by: LinkWater Projects and fully operational by January 2010.

Clifton water supply

Clifton's water supply consists of two water supply schemes, serviced by bores which supply the communities of Clifton and Nobby. 

Clifton provides water services to a population of almost 3000 through over 700 connections.

Crows Nest & Highfields water supply

Crows Nest's and Highfield's water supply consists of six water supply schemes which are all serviced with water supplied by the Toowoomba bulk water supply of Cressbrook and Perseverance Dams. Water is supplied to the communities of Blue Mountain Heights, Highfields, Hampton, Crows Nest and Perseverance.

Crows Nest and Highfields provide water services to a population of around 10,500 through almost 4000 connections.

Permanent conservation measures water restrictions with a target of 200 litres of water per person per day were introduced for all residences and businesses connected to the Toowoomba Bulk Water Supply and to the town water supplies within the Crows Nest Service area.

Treatment plants

The Crows Nest water treatment plant is a rapid sand filtration system which was completed in 1998. The plant was later improved to treat water affected by blue green algae using a Granulated Activated Carbon (GAC) filter. The Hampton water treatment plant was completed in 2004.

The Highfields water treatment plant was decommissioned at the end of 2012. The Highfields area with its expanding population is now supplied with high quality treated water by a direct pipeline from Mt Kynoch Water Treatment Plant.

Goombungee water supply

Goombungee's water supply consists of the seven water supply schemes of Goombungee, Gowrie Junction, Meringandan West, Kingsthorpe, Yarraman, Jondaryan and Kulpi. The communities of Goombungee, Gowrie Junction, Meringandan West, Kingsthorpe and Jondaryan are serviced with water supplied by the Toowoomba bulk water supply of Cressbrook, Perseverance and Cooby dams and bores. Goombungee is also supplied with water from Goombungee Dam. Kulpi is serviced by a bore and Yarraman is supplied with water from the Ted Pukallus Weir.

Goombungee provides water services to a population of over 6,700 through almost 2,500 connections.

For all residences and businesses connected to the town water supplies within the Goombungee Service area, permanent conservation measures apply to town water usage with a target of 200 litres of water per person per day. For those properties connected to the Yarraman supply, level one water restrictions apply.

Greenmount water supply

Greenmount's water supply consists of five water supply schemes which are all serviced by bores. They supply the communities of Greenmount, Cambooya, Wyreema, Hodgson Vale and Vale View.

Greenmount provides water services to an approximate population of 4,400 through over 1,500 connections.

From December 11, 2010, permanent conservation measures water restrictions with a target of 200 litres of water per person per day were introduced for all residences and businesses connected to the town water supplies within the Greenmount Service area.

Millmerran water supply

Millmerran's water supply consists of two water supply schemes which are serviced by bores and the Cecil Plains Weir on the Condamine River. They supply the communities of Millmerran and Cecil Plains.

Millmerran provides water services to a population of around 1500 through over 900 connections. 

Oakey water supply

Oakey's water supply basically consists of two water supply schemes. The first scheme, 'central', supplies communities including Oakey, Jondaryan and Gowrie Mountain. The second scheme, 'eastern', services Cotswold Hills, Torrington, Glenvale and Westbrook.

Oakey provides water services to a population of around 10,000 through almost 4000 connections. Oakey and Jondaryan are supplied by the Toowoomba/Oakey bulk water pipeline.

Permanent conservation measures water restrictions with a target of 200 litres of water per person per day were introduced for all residences and businesses connected to the Toowoomba bulk water supply and to the town water supplies within the Oakey area. 

Pittsworth water supply

Pittsworth's water supply consists of three water supply schemes, serviced by bores including a Great Artesian Basin bore. Water is supplied to the communities of Pittsworth, Southbrook and Brookstead.

Pittsworth provides water services to a population of around 3,800 through over 1,300 connections.

 

For information about water pricing and charges refer to Payments, self-service & laws > Payments & rates > Rates & charges information > Water rates & charges

 

Clean, safe water supply

A clean, sustainable water supply is vital for our health and one of the most important issues facing the region. The provision of a safe and secure water supply is one of the main responsibilities of council, as is the treatment of wastewater to environmentally safe standards.

Along with council, the community is also responsible for a dependable water supply by ensuring water is used wisely and effectively. This minimises excessive water use and the environmental impacts of water shortages, as well as postponing the need for investment in further water supply infrastructure.

The responsibility to provide a safe and secure water supply is supported by consistent management of water demand, including:

  • Water use education
  • Business engagement
  • Statutory measures
  • Sustainable water restrictions.

We are committed to:

  • providing our residential and business customers with a permanent and reliable water supply
  • maintaining continuous high-quality water supply services to these customers
  • providing all our connected customers with a reliable, safe sewerage collection and environmentally compliant disposal service

To achieve this commitment, we have set several Water and Wastewater Customer Service Key Performance Indicators (KPIs) as required by the regulator (Department of Energy and Water Supply), together with realistic targets for meeting these standards.  These performance indicators will be used to measure our performance each year and will be publicly reported against annually and reviewed on a regular basis.

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