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Controlling drainage

Drainage is further controlled by means of 20-30m wide horizontal benches between every 100m of sloped rehabilitation land. This reduces the likelihood of rainwater running off in torrents.

Small rock walls called ‘rills’ are constructed around the rehabilitation area to stop runoff from the mine washing away the topsoil or killing the grass.

Image courtesy of Tyson Stelzer and Ensham Resources.

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