{
  "url": "https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-regulations-1999/schedule-3/part-II",
  "json_url": "https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-regulations-1999/schedule-3/part-II.json",
  "legislation": "uksi/1999/1540",
  "legislation_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water Regulations 1999",
  "legislation_url": "https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-regulations-1999",
  "path": "schedule/3/part/II",
  "kind": "part",
  "number": "II",
  "heading": "Prescribed concentrations or values",
  "text": "TABLE A\n{s001} Note(i) If silver is used in a water treatment process, 80 may be substituted for 10.\nColumn 1\nColumn 2\nColumn 3\nColumn 4\nItem\nParameters\nUnits of Measurement\nConcentration or Value (maximum unless otherwise stated)\n1.\nColour\nmg/l Pt/Co scale\n20\n2.\nTurbidity (including suspended solids)\nFormazin turbidity units\n4\n3.\nOdour (including hydrogen sulphide)\nDilution number\n3 at 25°C\n4.\nTaste\nDilution number\n3 at 25°C\n5.\nTemperature\n°C\n25\n6.\nSulphate\nMg SO4/l\n250\n7.\nMagnesium\nMg Mg/l\n50\n8.\nSodium\nMg Na/l\n150\n9.\nPotassium\nMg K/l\n12\n10.\nDry residues\nMg/l\n1500 (after drying at 180°C)\n11.\nNitrate\nMg NO3/l\n50\n12.\nNitrite\nMg NO2/l\n0.1\n13.\nAmmonium (ammonia and ammonium ions)\nMg NH4/l\n0.5\n14.\nKjeldahl nitrogen\nMg N/l\n1\n15.\nOxidizability (permanganate value)\nMg O2/l\n5\n16.\nTotal organic carbon\nMg C/l\nNo significant increase over that normally observed\n17.\nDissolved or emulsified hydrocarbons (after extraction with petroleum ether); mineral oils\nμg/l\n10\n18.\nPhenols\nμg C6H5OH/l\n0.5\n19.\nSurfactants\nμg/l (as lauryl sulphate)\n200\n20.\nAluminium\nμg A1/l\n200\n21.\nIron\nμg Fe/l\n200\n22.\nManganese\nμg Mn/l\n50\n23.\nCopper\nμg Cu/l\n3000\n24.\nZinc\nμg Zn/l\n5000\n25.\nPhosphorus\nμg P/l\n2200\n26.\nFluoride\nμg F/l\n1500\n27.\nSilver\nμg Ag/l\n10 {s001}(i)\nTABLE B\n{s002}(i) The sum of the detected concentrations of individual substances.\n{s003}(ii) The sum of the detected concentrations of fluoranthene, benzo 3.4 fluoranthene, benzo 11.12 fluoranthene, benzo 3.4 pyrene, benzo 1.12 perylene and indeno (1,2,3–cd) pyrene.\nColumn 1\nColumn 2\nColumn 3\nColumn 4\nItem\nParameters\nUnits of Measurement\nMaximum Concentration\n1.\nArsenic\nμg As/l\n50\n2.\nCadmium\nμg Cd/l\n5\n3.\nCyanide\nμg CN/l\n50\n4.\nChromium\nμg Cr/l\n50\n5.\nMercury\nμg Hg/l\n1\n6.\nNickel\nμg Ni/l\n50\n7.\nSelenium\nμg Se/l\n10\n8.\nAntimony\nμg Sb/l\n10\n9.\nLead\nμg Pb/l\n10\n10.\nPesticides and related products:\n(a)individual substances\nμg/l\n0.1\n(b)total substances {s002}(i)\nμg/l\n0.5\n11.\nPolycyclic aromatic Hydrocarbons {s003}(ii)\nμg/l\n0.2\nTABLE D\nColumn 1\nColumn 2\nColumn 3\nColumn 4\nItem\nParameters\nUnits of Measurement\nMaximum Concentration or Value\n1.\nConductivity\nμS/cm\n1500 at 20°C\n2.\nChloride\nmg Cl/l\n400\n3.\nCalcium\nmg Ca/l\n250\n4.\nSubstances extractable in chloroform\nmg/l dry residue\n1\n5.\nBoron\nμg B/l\n2000\n6.\nBarium\nμg Ba/l\n1000\n7.\nBenzo 3.4 pyrene\nng/l\n10\n8.\nTetrachloromethane\nμg/l\n3\n9.\nTrichloroethene\nμg/l\n30\n10.\nTetrachloroethene\nμg/l\n10",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "substituted",
      "affecting": "uksi/2003/666",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (England) Regulations 2003"
    },
    {
      "type": "substituted",
      "affecting": "uksi/2003/666",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (England) Regulations 2003"
    },
    {
      "type": "substituted",
      "affecting": "uksi/2003/666",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (England) Regulations 2003"
    },
    {
      "type": "substituted",
      "affecting": "uksi/2003/666",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (England) Regulations 2003"
    },
    {
      "type": "substituted",
      "affecting": "wsi/2003/3042",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (Wales) Regulations 2003 (revoked)"
    },
    {
      "type": "substituted",
      "affecting": "wsi/2003/3042",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (Wales) Regulations 2003 (revoked)"
    },
    {
      "type": "substituted",
      "affecting": "wsi/2003/3042",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (Wales) Regulations 2003 (revoked)"
    },
    {
      "type": "substituted",
      "affecting": "wsi/2003/3042",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (Wales) Regulations 2003 (revoked)"
    },
    {
      "type": "substituted",
      "affecting": "ssi/2003/139",
      "affecting_title": "The Natural Mineral Water, Spring Water and Bottled Drinking Water (Amendment) (Scotland) Regulations 2003 (revoked)"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1999/1540/schedule/3/part/II",
    "retrieved_at": "2026-10-29T10:43:34.410997+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."
}