The Boil Water Alert issued for Wellington and Geurie is still in place however reduced consumption is helping to stabilise and improve quality in the towns.
Reduced consumption in Wellington and Geurie is helping to meet Australian Drinking Water Guidelines and NSW Health standards.
The precautionary Boil Water Alert is a result of high turbidity caused by recent heavy rain and dust storms.
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Dubbo Regional Council infrastructure director Julian Geddes said latest test results on February 10, for Geurie had shown improvement of water quality at the town's treatment plant compared with last week.
"Current analysis and projections at the Wellington treatment indicate similar improvement in water quality for the town may be recorded in the next few days," he said.
"The co-operation of Geurie and Wellington residents in limiting their consumption during this precautionary Boil Water Alert is appreciated. It is helping Dubbo Regional Council treatment plants improve water quality as soon as possible."
Residents in Wellington and Geurie are asked to continue to observe the precautionary Boil Water Alert and check the Dubbo Regional Council website and social media for updates.
Water should be boiled if it's to be used for drinking, brushing teeth, preparing baby formula, making ice or washing fruit and vegetables.