By Brett Lackey For Daily Mail Australia
Published: 08:23 GMT, 15 February 2020 | Updated: 08:26 GMT, 15 February 2020
Sydney's largest dam was cut off from the water network on Monday amid fears it was too contaminated after heavy rains disturbed mud and bushfire ash.
The move was only revealed today when the dam was reconnected because the water was deemed safe.
After last weekend, sediment, ash, and debris from 320,000 hectares of burnt bushland was seen floating on the surface of the water near the dam wall - prompting the switch to use water from Prospect Reservoir.
There were also fears fire retardant could have washed into the water catchment.
NSW Water Minister Melinda Pavey confirmed the dam was cut off. 'We just wanted to let things settle,' she said.
Drinking water in Sydney is once again being drawn from Warragamba Dam (pictured) less than a week after authorities cut the supply over fears of contaminated water
'Ongoing monitoring results confirmed confidence in the quality of water available from Warragamba,' a Water NSW spokesperson said (stock image)
The dam, which holds 80 per cent of Sydney's water, was reconnected on Saturday.
'Ongoing monitoring results confirmed confidence in the quality of water available from Warragamba,' a Water NSW spokesperson told the ABC.