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Explanatory Note

(This note is not part of the Regulations)

These Regulations prescribe a system for classifying the quality of inland waters according to their suitability for abstraction for supply as drinking water, in implementation of Directive 75/440/EEC (quality required of surface water intended for the abstraction of drinking water). They provide mandatory values for classifications DW1, DW2 and DW3 in Schedule 1 to the Regulations and guideline values for those classifications in Schedule 2 to the Regulations.

The Regulations also incorporate the methods of measurement and frequency of sampling and analysis for those values, laid down in Directive 79/869/EEC (methods of measurement and frequencies of sampling and analysis of surface water intended for the abstraction of drinking water).

These Regulations, together with regulation 23 of the Water Supply (Water Quality) (Scotland) Regulations 1990, complete the implementation of Directives 75/440/EEC and 79/869/EEC for Scotland.

A compliance cost assessment of the effect that these Regulations would have on the cost of business is available from the Water Services Unit, Water Team, The Scottish Office, Victoria Quay, Edinburgh, EH6 6QQ.