{
  "url": "https://openlegislation.uk/surface-waters-abstraction-for-drinking-water-classification-scotland-regulations-1996/schedule-3/part-II",
  "json_url": "https://openlegislation.uk/surface-waters-abstraction-for-drinking-water-classification-scotland-regulations-1996/schedule-3/part-II.json",
  "legislation": "uksi/1996/3047",
  "legislation_title": "The Surface Waters (Abstraction for Drinking Water) (Classification) (Scotland) Regulations 1996",
  "legislation_url": "https://openlegislation.uk/surface-waters-abstraction-for-drinking-water-classification-scotland-regulations-1996",
  "path": "schedule/3/part/II",
  "kind": "part",
  "number": "II",
  "heading": "MINIMUM ANNUAL FREQUENCY OF SAMPLING FOR EACH PARAMETER",
  "text": "Population served\nClassification DW1\nClassification DW2\nClassification DW3\nI\nII\nIII\nI\nII\nIII\nI\nII\nIII\n1This column applies to the parameters – pH, coloration, total suspended solids, temperature, conductivity, odour, nitrates, chlorides, phosphates, chemical oxygen demand (COD), dissolved oxygen saturation rate, biochemical oxygen demand (BOD5) and ammonium.\n2This column applies to the parameters – dissolved iron, manganese, copper, zinc, sulphates, surfactants, phenols, nitrogen by the Kjeldahl method, total coliforms and faecal coliforms.\n3This column applies to the parameters – fluorides, boron, arsenic, cadmium, total chromium, lead, selenium, mercury, barium, cyanide, dissolved or emulsified hydrocarbons, polycyclic aromatic hydrocarbons, total pesticides, substances extractable with chloroform, faecal streptococci and salmonella.\n≤10,000\n1\n1\n1\n1\n1\n1\n2\n1\n1\n>10,000 to ≤30,000\n1\n1\n1\n2\n1\n1\n3\n1\n1\n>30,000 to ≤100,000\n2\n1\n1\n4\n2\n1\n6\n2\n1\n>100,000\n3\n2\n1\n8\n4\n1\n12\n4\n1",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "1This column applies to the parameters – pH, coloration, total suspended solids, temperature, conductivity, odour, nitrates, chlorides, phosphates, chemical oxygen demand (COD), dissolved oxygen saturation rate, biochemical oxygen demand (BOD5) and ammonium."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "2This column applies to the parameters – dissolved iron, manganese, copper, zinc, sulphates, surfactants, phenols, nitrogen by the Kjeldahl method, total coliforms and faecal coliforms."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "3This column applies to the parameters – fluorides, boron, arsenic, cadmium, total chromium, lead, selenium, mercury, barium, cyanide, dissolved or emulsified hydrocarbons, polycyclic aromatic hydrocarbons, total pesticides, substances extractable with chloroform, faecal streptococci and salmonella."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1996/3047/schedule/3/part/II",
    "retrieved_at": "2026-10-29T12:30:44.273061+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."
}