Water: Pollution
The question
To ask the Secretary of State for Environment, Food and Rural Affairs, what plans his Department has to update its policy guidance on metal mine pollution to reflect the primary risk from sediment contamination in river channels and floodplains.
Answered by Emma Hardy
There is no specific policy guidance on metal mine pollution. The Environment Agency (EA) considers the primary risk from abandoned metal mines to be pollution of rivers and estuaries, with around 1,500km of rivers polluted by metals. The government has a long-term statutory target to halve the length of rivers polluted by six target substances from abandoned metal mines by 31 December 2038. The six target substances which pose the greatest threat to, or via the aquatic environment are cadmium, lead, nickel, zinc, copper, and arsenic.
Through the Water and Abandoned Metal Mines Programme - a partnership between Defra, the EA and the Coal Authority - government is taking action to develop mine water treatment schemes and diffuse interventions to prevent metals from abandoned metal mines and metal mine waste heaps from entering local river systems.
Where contamination from abandoned metal mines impacts land rather than water then this is covered by the Government’s policy on land contamination including the Land Contamination Risk Management Framework which sets out the approach on how to assess and manage risks from land contamination and the statutory contaminated land regime (Part 2A of the Environment Act 1990, supporting Regulations and Statutory Guidance).
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