# The A1 Birtley to Coal House Development Consent Order 2021, Paragraph 8: Surface and foul water drainage

Extent: E+W+S

(1) Other than site clearance works carried out in terms of paragraph 16, no part of the authorised development is to commence until for that part written details of the surface and foul water drainage system, in substantial accordance with the mitigation measures set out in the REAC including means of pollution control, have been submitted and approved in writing by the Secretary of State following consultation with the relevant planning authority on matters related to its function.
(2) The written details required by sub-paragraph (1) shall include culvert design. Where possible, culverts will be designed to include natural beds (between 100mm and 200mm) to maintain and assist fish passage. To mitigate for potential downstream impacts and maintain passage along watercourses, baffles or similar structures shall be included within existing culverts.
(3) The surface and foul water drainage system must be constructed in accordance with the approved details, unless otherwise agreed in writing by the Secretary of State following consultation with the relevant planning authority on matters related to its function, provided that the Secretary of State is satisfied that any amendments to the approved details would not give rise to any materially new or materially different environmental effects in comparison with those reported in the environmental statement.

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Source: https://www.legislation.gov.uk/uksi/2021/74/schedule/2/paragraph/8 (the official version)
Page: https://openlegislation.uk/a1-birtley-to-coal-house-development-consent-order-2021/schedule-2/paragraph-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.