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Catchments

Catchments

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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.

HCS cover
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

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
95.8
Tuesday 28 March
2.4
2,472,194 ML
2,581,749 ML
4,462 ML
638 ML
56,817 ML
Tuesday 28 March