# The Private Water Supplies (Wales) Regulations 2017, Paragraph 11

Extent: E+W

If the gross alpha activity exceeds 0,1Bq/l or the gross beta activity exceeds 1,0Bq/l, analysis for specific radionuclides is required.

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Source: https://www.legislation.gov.uk/wsi/2017/1041/schedule/4/paragraph/11 (the official version)
Page: https://openlegislation.uk/private-water-supplies-wales-regulations-2017/schedule-4/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.