{
  "url": "https://openlegislation.uk/private-water-supplies-england-regulations-2016/schedule-1/part-2",
  "json_url": "https://openlegislation.uk/private-water-supplies-england-regulations-2016/schedule-1/part-2.json",
  "legislation": "uksi/2016/618",
  "legislation_title": "The Private Water Supplies (England) Regulations 2016",
  "legislation_url": "https://openlegislation.uk/private-water-supplies-england-regulations-2016",
  "path": "schedule/1/part/2",
  "kind": "part",
  "number": "2",
  "heading": "Indicator parameters (excluding radioactive substances)",
  "text": "Table C\nPrescribed concentrations, values or states\n1 The water should not be aggressive.\n2 Only in the case of surface water or groundwater that has been influenced by surface water.\nParameters\nMaximum concentration or value or state (unless otherwise stated)\nUnits of measurement\nAmmonium\n0.50\nmg/l\nChloride1\n250\nmg/l\nClostridium perfringens (including spores)\n0\nNumber/100ml\nNumber/100ml (Number/250\nColiform bacteria\n0\nml in the case of water put into bottles of containers)\n. . .\n. . .\nColony counts\nNo abnormal change\nNumber/ml at 22°C\nConductivity1\n2500\nμS/cm at 20°C\nHydrogen ion\n9.5 (maximum)\npH value\n6.5 (minimum) (in the case of\nstill water put into bottles or containers the minimum is 4.5)\npH value\nSulphate1\n250\nmg/l\nTotal organic carbon (TOC)\nNo abnormal change\nmgC/l\nTurbidity2\n1\nNTU",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Words in Sch. 1 Pt. 2 omitted (11.7.2018) by virtue of The Private Water Supplies (England) (Amendment) Regulations 2018 (S.I. 2018/707), regs. 1(1), 2(9)(b)(i)(aa) (with reg. 3)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in Sch. 1 Pt. 2 omitted (11.7.2018) by virtue of The Private Water Supplies (England) (Amendment) Regulations 2018 (S.I. 2018/707), regs. 1(1), 2(9)(b)(i)(bb) (with reg. 3)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Word in Sch. 1 Pt. 2 substituted (11.7.2018) by The Private Water Supplies (England) (Amendment) Regulations 2018 (S.I. 2018/707), regs. 1(1), 2(9)(b)(ii) (with reg. 3)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2016/618/schedule/1/part/2",
    "retrieved_at": "2026-10-28T23:23:04.925081+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."
}