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Managing the catchment

WaterNSW protects the health of the catchments to ensure reliable, quality drinking water is available for the 4.5 million people of Sydney and the Illawarra, Blue Mountains, Southern Highlands, Goulburn and Shoalhaven regions.

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Development in the catchment

Every year there is a range of new residential, commercial and agricultural development and activities in Greater Sydney’s drinking water catchment.

Houses in the catchment

Mining is a significant community issue and an important focus for WaterNSW. There is a long history of coal mining in the Sydney drinking water catchments and, in recent years, coal seam gas has been an emerging issue.

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Living in the catchment

Greater Sydney's drinking water catchment is home to over 200,000 residents enjoying a range of beautiful and diverse landscapes, towns and communities.

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Your local catchment

Find out more about local catchment areas.

Warragamba catchments
Wednesday 26 April
2,475,389 ML
2,581,749 ML
10,456 ML
1,494 ML
-7,755 ML
Wednesday 26 April