# The Urban Waste Water Treatment (Scotland) Regulations 1994, Paragraph 3

Extent: S

The minimum annual number of samples shall be determined according to the size of the treatment plant and be collected at regular intervals during the year:
– 2,000 to 9,999 p.e.:
12 samples during the first year; four samples in subsequent years, if it can be shown that the water during the first year complies with the provisions of these Regulations; if one sample of the four fails, 12 samples must be taken in the year that follows;
– 10,000 to 49,999 p.e.:
12 samples;
– 50,000 p.e. or over:
24 samples.

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Source: https://www.legislation.gov.uk/uksi/1994/2842/schedule/3/part/II/paragraph/3 (the official version)
Page: https://openlegislation.uk/urban-waste-water-treatment-scotland-regulations-1994/schedule-3/part-II/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.