{
  "url": "https://openlegislation.uk/private-water-supplies-regulations-northern-ireland-2017/schedule-4/paragraph-6",
  "json_url": "https://openlegislation.uk/private-water-supplies-regulations-northern-ireland-2017/schedule-4/paragraph-6.json",
  "legislation": "nisr/2017/211",
  "legislation_title": "The Private Water Supplies Regulations (Northern Ireland) 2017",
  "legislation_url": "https://openlegislation.uk/private-water-supplies-regulations-northern-ireland-2017",
  "path": "schedule/4/paragraph/6",
  "kind": "paragraph",
  "number": "6",
  "heading": "Monitoring for Compliance with the ID",
  "text": "Screening strategy for gross alpha activity and gross beta activity may be used to monitor for the parametric indicator value for indicative dose.\nIf the gross alpha activity is less than 0.1 Bq/l and the gross beta activity is less than 1.0 Bq/l, it may be assumed that the total indicative dose is less than 0.1 mSv and radiological investigation is not needed unless it is known from other sources of information that specific radionuclides are present in water that are liable to cause an excess of 0.1 mSv.\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/2017/211/schedule/4/paragraph/6",
    "retrieved_at": "2026-10-29T00:51:01.602850+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."
}