Lake Moondarra Capacity

Friday 22 March 2019 – 85.3%


Lake Julius Capacity

Friday 22 March 2019 – 98.5%


 Blue Green Algae Level

Blue Green Algae Level - Low

Level: Medium Date Sampled: 11 March 2019

 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 +


How much water does Mount Isa use?

In February 2015, approximately 16.9 mega litres (or 16.9 million litres) of water is being used on average each day in Mount Isa. This equates to approximately 600 litres per person per day.

This water usage is considerably higher than the same time last year. In February 2014, approximately 11.4 mega litres (or 11.4 million litres) of water was used on average in Mount Isa each day. This equates to approximately 400 litres per person per day.

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What are blue-green algae?

Blue-green algae are naturally occurring bacteria found in rivers, lakes, soil, tree trunks and other places. In certain weather conditions, particularly involving long periods of hot dry weather, the blue-green algae “blooms” and there is a significant increase in the blue-green algae cell population. The recent local bloom has resulted in unprecedented levels of blue-green algae in Clear Water Lagoon, Lake Moondarra and Lake Julius.

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Why was a water levy imposed?

The levy, in place during 2014-15 financial year, was a matter for Mount Isa City Council. As per the Mount Isa Water Board’s contract with Council, the essential major expense associated with implementing the emergency leased filtration system was passed on at cost price.

As part of negotiations for new equipment in 2015, the Mount Isa Water Board has negotiated with the supplier to secure a substantial reduction in charges effective 1 February 2015 for the current filtration system. The cost was now been reduced from $250,000 per month to $10,000 per month, saving Council $1.19 million in the 2014-15 financial year which was been rebated to rate payers.

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Does the Mount Isa Water Board make a profit?

The Mount Isa Water Board has made a profit in most years and has consequently paid taxes and dividends to the State Government.

From the time the Mount Isa Water Board was commercialised in 2000 until 2011–12, all dividends and taxes were passed on by the State Government to Mount Isa City Council, amounting to $28 million poured back into the Mount Isa community over that period.

Current State Government policy is that Mount Isa City Council will receive 50% of the total dividends and taxes generated by the Mount Isa Water Board in a financial year (July to June). However, this is conditional upon the Mount Isa Water Board making a profit for the year.

Provided MIWB makes a profit, the receipt of dividends and tax by Mount Isa City Council offset a significantly proportion of the cost of water charges.

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How does the Mount Isa Water Board supply the water?

The Mount Isa Water Board has a network of pump stations, pipelines and power distribution systems from Lake Julius to Lake Moondarra to Mount Isa. The Mount Isa Water Board supplies the major customers’ storage tanks with bulk water when the tank levels drop below a certain point.

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