Charity is considering removing some of the water and there is also concern over the sediment on the canal floor
When sodium cyanide leaked into a Walsall canal this month, leading to major incident being declared and miles of the waterway closed off, the Canal & River Trust was working in uncharted territory.
The charity is used to fighting pollution in the waterways that crisscross the country, but this type of chemical – and the extreme risk to public health that came with it – was not something it had tackled before.
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