{
  "url": "https://openlegislation.uk/private-water-supplies-wales-regulations-2017/schedule-1/part-3",
  "json_url": "https://openlegislation.uk/private-water-supplies-wales-regulations-2017/schedule-1/part-3.json",
  "legislation": "wsi/2017/1041",
  "legislation_title": "The Private Water Supplies (Wales) Regulations 2017",
  "legislation_url": "https://openlegislation.uk/private-water-supplies-wales-regulations-2017",
  "path": "schedule/1/part/3",
  "kind": "part",
  "number": "3",
  "heading": "Radioactive substances parameters",
  "text": "TABLE D:\nPrescribed values for radon, tritium and indicative dose of water intended for human consumption\nParameters\nMaximum concentration or value\nUnits of Measurement\n(1)Enforcement action by the local authority is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1.\n(2)If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out.\nIndicative dose (for radioactivity)\n0.10\nmSv\nRadon\n100\nBq/l\nTritium (for radioactivity)\n100\nBq/l",
  "extent": "E+W",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 1 Pt. 3 in force at 20.11.2017, see reg. 1"
    },
    {
      "type": "footnote",
      "label": "f1",
      "text": "(1)Enforcement action by the local authority is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "(2)If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/wsi/2017/1041/schedule/1/part/3",
    "retrieved_at": "2026-10-28T23:24:57.489600+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."
}