{
  "url": "https://openlegislation.uk/water-framework-directive-classification-priority-substances-and-shellfish-waters-regulations-northern-ireland-2015/schedule-4",
  "json_url": "https://openlegislation.uk/water-framework-directive-classification-priority-substances-and-shellfish-waters-regulations-northern-ireland-2015/schedule-4.json",
  "legislation": "nisr/2015/351",
  "legislation_title": "The Water Framework Directive (Classification, Priority Substances and Shellfish Waters) Regulations (Northern Ireland) 2015",
  "legislation_url": "https://openlegislation.uk/water-framework-directive-classification-priority-substances-and-shellfish-waters-regulations-northern-ireland-2015",
  "path": "schedule/4",
  "kind": "schedule",
  "number": "4",
  "heading": "Presentation of monitoring results and classification",
  "text": "Table 1\nSurface Water Ecological Status\nEcological status classification\nColour code\nHigh\nBlue\nGood\nGreen\nModerate\nYellow\nPoor\nOrange\nBad\nRed\nTable 2\nHeavily Modified/Artificial Water Bodies Ecological Potential\nEcological potential classification\nColour code\nArtificial water bodies\nHeavily modified\nGood and above\nEqual green and light grey stripes\nEqual green and dark grey stripes\nModerate\nEqual yellow and light grey stripes\nEqual yellow and dark grey stripes\nPoor\nEqual orange and light grey stripes\nEqual orange and dark grey stripes\nBad\nEqual red and light grey stripes\nEqual red and dark grey stripes\nTable 3\nSurface Water Chemical Status\nChemical status classification\nColour code\nGood\nBlue\nFailing to achieve good\nRed\nTable 4\nGroundwater chemical status\nGroundwater chemical status\nColour code\nGood\nGreen\nPoor\nRed\nTable 5\nGroundwater Quantitative Status\nGroundwater quantitative status\nColour code\nGood\nGreen\nPoor\nRed",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2015/351/schedule/4",
    "retrieved_at": "2026-10-29T01:00:03.181368+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."
}