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Paragraph 1

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

Subject to the following provisions of this Schedule, the criteria for the classification BW1 are that –

(a)

at least 95 per cent of samples of the waters taken and tested in accordance with Schedule 2 must conform to the parametric values specified in Schedule 3;

(b)

no sample of the waters taken in accordance with Schedule 2 which when tested for compliance with the phenols parameter by the absorption method or with the transparency parameter fails to comply shall have a value which deviates from the relevant parametric value for that parameter specified in Schedule 3 by more than 50 per cent;

(c)

consecutive samples of the waters taken in accordance with Schedule 2 at statistically suitable intervals shall not when tested deviate from the relevant parametric values specified in Schedule 3.