Over time, erosion of the banks of the river was causing metal rich sediment from the former Whitesike and Bentyfield mines to enter the burn, causing pollution. The £380,000 project, delivered over 12 weeks by Tyne Rivers Trust, saw stone that had collapsed into the river, along with imported stone, used to rebuild embankments originally installed by miners in the 1800s. This will reduce sediment containing very high concentrations of metals such as lead, cadmium and zinc from entering the river.

https://www.miragenews.com/uk-gov-completes-project-to-curb-metal-pollution-1071615/

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