# The Sizewell C (Nuclear Generating Station) Order 2022, Paragraph 21: During construction, operation and maintenance


Except for activities taking place below MHWS, concrete and cement mixing and washing areas must be contained and sited at least 10 metres from any watercourse or surface water drain to minimise the risk of runoff entering a watercourse.

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Source: https://www.legislation.gov.uk/uksi/2022/853/schedule/21/paragraph/21 (the official version)
Page: https://openlegislation.uk/sizewell-c-nuclear-generating-station-order-2022/schedule-21/paragraph-21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.