# The Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015, Paragraph 2


In order to determine how to classify surface water bodies designated as heavily modified or artificial in accordance with paragraph 1, the Department must —
(a) determine whether or not all practicable mitigation has been taken to improve the modified or artificial hydromorphological characteristics of the surface water body other than that which would have a significant adverse impact on:
(i) the use served by the modified or artificial characteristics; or
(ii) the wider environment.
(b) estimate representative values of indicators of the condition of the relevant biological and physicochemical quality elements from monitoring or modelling results. The indicators shall include:
(i) indicators of the biological quality elements which are not sensitive to the artificial or heavily modified characteristics of the water body;
(ii) the concentrations of those specific pollutants likely to be in the surface water body in quantities that could cause a failure of a specific pollutant standard; and
(iii) the values for those other physicochemical quality elements at risk of being so altered as to be failing a physicochemical standard.
(c) compare the values of the indicators estimated from monitoring or modelling with the applicable standards in Schedule 1 of these Regulations.

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Source: https://www.legislation.gov.uk/nisr/2015/351/schedule/2/part/3/paragraph/2 (the official version)
Page: https://openlegislation.uk/water-framework-directive-classification-priority-substances-and-shellfish-waters-regulations-northern-ireland-2015/schedule-2/part-3/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.