Lake Moondarra Capacity

Friday 20 October 2017 – 45.1%

 

Lake Julius Capacity

Friday 20 October 2017 – 80.5%

 Blue Gree Algae Level

Blue Green Algae Level - Low

Level: Medium Date Sampled: 18 July 2017

 Open Data

The Mount Isa Water Board is committed to the Queensland Government’s Open Data initiative. The Board has developed an Open Data Strategy detailing our data assessment processes and identifying data planned for release and the release schedule. The strategy reinforces our commitment to making a range of information available to the community. Learn More +

 FAQS

How does the Mount Isa Water Board treat blue-green algae?

Following a significant blue-green algae bloom in Clear Water Lagoon, Lake Moondarra and Lake Julius in late 2013, the Mount Isa Water Board installed a filtration plant as an interim measure to filter all water supplied to Mount Isa City Council customers. This filtration effectively removes all blue-green algae from the water before oxidation and then supplied to Mount Isa City Council. New, permanent micro-filtration treatment plant was introduced in March 2015 which provides an appropriate level of assurance of the quality of water supplied to Mount Isa City Council.

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How does Mount Isa’s water usage compare to other similar-sized regional cities?

In February 2015, Mount Isa’s average daily consumption was approximately 600 litres per person per day.

Based on this figure, Mount Isa’s average daily consumption per person is more than 200% higher than Brisbane (<200 litres per person per day).

Compared with other similar-sized outback mining centres, Mount Isa’s average daily water consumption per person is 50% higher than Kalgoorlie-Boulder (400 litres per person per day) and 62% higher than Broken Hill (370 litres per person per day).

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Who do I get my water from?

Mount Isa residential customers are supplied by Mount Isa City Council (who is supplied bulk water by the Mount Isa Water Board).

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What else does the Mount Isa Water Board do?

The Mount Isa Water Board is also the trustee for the R48 Water and Recreational Reserve, which includes the area surrounding Lake Moondarra. The Board operates and maintains the public facilities within the Reserve, mainly at Transport Bay, Blackrock and Warrina Park.

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How does the Mount Isa Water Board treat the water?

Historically, the water in Mount Isa has been treated using a natural filtration and treatment process in Clear Water Lagoon. However, in late 2013, a significant blue-green algae bloom caused the lagoon’s natural filtration process to fail. This resulted in the lagoon being unable to provide water of an appropriate quality for the Mount Isa community without subsequent filtration. As there was no likelihood that the algae bloom could be resolved within a suitable timeframe, the Mount Isa Water Board urgently sourced a filtration system as an interim measure to ensure the continued supply of clean water to Mount Isa City Council.

In 2015 the blue-green algae bloom in Clear Water Lagoon grew to be potentially the largest ever recorded in a Queensland water supply system, with more than 6 million cells per millilitre (recorded 3 March 2015). 10,000 cells per millilitre is considered normal and acceptable. New, permanent micro-filtration treatment equipment was introduced in March 2015, expanding on the capacity of the emergency plant and providing an appropriate standard of assurance to the quality of drinking water supplied to Mount Isa City Council.

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