# The River Mersey (Mersey Gateway Bridge) Order 2011, Paragraph 9

Extent: E+W+S

(1) The undertaker shall not in the course of constructing any specified work or protective work or otherwise in connection with such works do or permit anything which may result in the deposit of any polluting materials on, in or over the Canals and shall take such steps as the engineer may reasonably require to avoid or make good any breach of its obligations under this paragraph.
(2) Nothing in article 14 (discharge of water) shall authorise the undertaker to discharge (directly or indirectly) surface drainage water into the Canals save that with the written consent of MSCC the undertaker may discharge water directly into the Ship Canal only.
(3) The undertaker shall not in the course of constructing any specified work or protective work or otherwise in connection with such works do or permit anything which may result in the deposit of any other materials in the Canals and shall take such steps as the engineer may reasonably require to avoid or make good any breach of its obligations under this paragraph save that with the written consent of MSCC the undertaker may deposit any other materials into the Ship Canal only.
(4) Any consent of MSCC required under this paragraph shall not be unreasonably withheld or delayed and may be given subject to such terms and conditions as MSCC may reasonably require including—
(a) in the case of a discharge of water into the Ship Canal, concerning the reimbursement by the undertaker of expenses incurred by MSCC in disposing of the water so discharged, being expenses which MSCC would not have incurred but for the discharge;
(b) in the case of a deposit of any other materials, so as to ensure that the use of the Ship Canal is not obstructed or rendered less safe and the reimbursement by the undertaker of additional expenses incurred by MSCC in dredging the Ship Canal, being expenses which MSCC would not have incurred but for the deposit of other materials.

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Source: https://www.legislation.gov.uk/uksi/2011/41/schedule/10/paragraph/9 (the official version)
Page: https://openlegislation.uk/river-mersey-mersey-gateway-bridge-order-2011/schedule-10/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.