{
  "url": "https://openlegislation.uk/water-supply-water-quality-regulations-northern-ireland-2017/schedule-5/paragraph-1",
  "json_url": "https://openlegislation.uk/water-supply-water-quality-regulations-northern-ireland-2017/schedule-5/paragraph-1.json",
  "legislation": "nisr/2017/212",
  "legislation_title": "The Water Supply (Water Quality) Regulations (Northern Ireland) 2017",
  "legislation_url": "https://openlegislation.uk/water-supply-water-quality-regulations-northern-ireland-2017",
  "path": "schedule/5/paragraph/1",
  "kind": "paragraph",
  "number": "1",
  "heading": null,
  "text": "A water undertaker may use a screening strategy for gross alpha and gross beta to monitor for the parametric indicator value for indicative dose . The recommended screening value for gross alpha is 0.1Bq/l and for gross beta is 1.0Bq/l.\nIf the gross alpha activity exceeds 0.1Bq/l or the gross beta activity exceeds 1.0Bq/l, analysis for specific radionuclides is required.\nThe radionuclides to be measured must be based on all relevant information about likely sources of radioactivity.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "M",
      "label": "M1",
      "text": "Where appropriate gross beta activity may be replaced by residual beta activity after subtraction of the K-40 activity concentration."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2017/212/schedule/5/paragraph/1",
    "retrieved_at": "2026-10-29T00:51:01.047970+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}