# The Surface Waters (Abstraction for Drinking Water) (Classification) Regulations (Northern Ireland) 1996, Regulation 5: Guideline values and no deterioration principle

Extent: N.I.
Status: prospective

In discharging its pollution control functions in relation to any waters classified under these Regulations, the Department shall—
(a) endeavour to respect the guideline values specified in column G of Schedule 1 for waters of the relevant class;
(b) act in accordance with the principle that implementation of measures taken pursuant to Directive 75/440/EEC may under no circumstances lead directly or indirectly to deterioration of the current quality of surface water.

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Source: https://www.legislation.gov.uk/nisr/1996/603/regulation/5 (the official version)
Page: https://openlegislation.uk/surface-waters-abstraction-for-drinking-water-classification-regulations-northern-ireland-1996/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.