{
  "url": "https://openlegislation.uk/water-supply-water-quality-regulations-2016/schedule-3/part-3",
  "json_url": "https://openlegislation.uk/water-supply-water-quality-regulations-2016/schedule-3/part-3.json",
  "legislation": "uksi/2016/614",
  "legislation_title": "The Water Supply (Water Quality) Regulations 2016",
  "legislation_url": "https://openlegislation.uk/water-supply-water-quality-regulations-2016",
  "path": "schedule/3/part/3",
  "kind": "part",
  "number": "3",
  "heading": "Annual sampling frequencies: treatment works and supply points",
  "text": "Table 11\n(1) Volume of water supplied m3/day\n(2) Standard sampling frequency per year\n<20\n4\n20-1,999\n52\n2,000-5,999\n104\n6,000-11,999\n208\n≥12,000\n365\nTable 12\nAnnual sampling frequencies for Group A3 parameters: supply points\n(1) Volume of water supplied m3/day\n(2) Standard sampling frequency per year\n<20\n2\n20-999\n4\n1,000-1999\n12\n2,000-5,999\n24\n6,000-9,999\n36\n10,000-15,999\n52\n16,000-32,999\n104\n33,000-49,999\n156\n50,000-67,999\n208\n68,000-84,999\n260\n85,000-101,999\n312\n102,000-119,999\n365\n120,000-241,999\n730\n242,000-484,999\n1,460\n485,000-728,999\n2,190\nTable 13\nAnnual sampling frequencies for Group B2 parameters: treatment works or supply points\n(1) Volume of water supplied m3/day\n(2) Standard sampling frequency per year\n<20\n1\n20-999\n4\n1,000-49,999\n8\n50,000-89,999\n12\n90,000-299,999\n24\n300,000-649,999\n36\n≥650,000\n48",
  "extent": "E+W",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Sch. 3 substituted (11.7.2018) by The Water Supply (Water Quality) (Amendment) Regulations 2018 (S.I. 2018/706), regs. 1(1), 2(13)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Word in Sch. 3 Pt. 3 substituted (29.3.2019) by The Environment, Food and Rural Affairs (Miscellaneous Amendments etc.) Regulations 2019 (S.I. 2019/526), regs. 1(2), 6(3)(b)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2016/614/schedule/3/part/3",
    "retrieved_at": "2026-10-28T23:23:06.508330+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."
}