{
  "url": "https://openlegislation.uk/eu-directive-1999-31/annex-III/division-4/division-C",
  "json_url": "https://openlegislation.uk/eu-directive-1999-31/annex-III/division-4/division-C.json",
  "legislation": "eudr/1999/31",
  "legislation_title": "Council Directive 1999/31/EC of 26 April 1999 on the landfill of waste",
  "legislation_url": "https://openlegislation.uk/eu-directive-1999-31",
  "path": "annex/III/division/4/division/C",
  "kind": "division",
  "number": "C",
  "heading": "Trigger levels",
  "text": "Significant adverse environmental effects, as referred to in Articles 12 and 13 of this Directive, should be considered to have occurred in the case of groundwater, when an analysis of a groundwater sample shows a significant change in water quality. A trigger level must be determined taking account of the specific hydrogeological formations in the location of the landfill and groundwater quality. The trigger level must be laid down in the permit whenever possible.\nThe observations must be evaluated by means of control charts with established control rules and levels for each downgradient well. The control levels must be determined from local variations in groundwater quality.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudr/1999/31/annex/III/division/4/division/C",
    "retrieved_at": "2026-11-01T15:23:05.142662+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."
}