{
  "url": "https://openlegislation.uk/sludge-use-in-agriculture-regulations-1989/schedule-1/paragraph-4",
  "json_url": "https://openlegislation.uk/sludge-use-in-agriculture-regulations-1989/schedule-1/paragraph-4.json",
  "legislation": "uksi/1989/1263",
  "legislation_title": "The Sludge (Use in Agriculture) Regulations 1989",
  "legislation_url": "https://openlegislation.uk/sludge-use-in-agriculture-regulations-1989",
  "path": "schedule/1/paragraph/4",
  "kind": "paragraph",
  "number": "4",
  "heading": null,
  "text": "The average annual rate of addition referred to in regulation 3(4) shall be ascertained for each of the elements in the sludge table by taking the average amount of that element in the sludge used on that land in the period of ten years ending on the date of such use.\nSLUDGE TABLE\n(1)\n(2)\n(3)\nElement\nKilograms per hectare per year\nLimit of detection (mg/kg of dry matter)\nZinc\n15\n50\nCopper\n7.5\n25\nNickel\n3\n10\nCadmium\n0.15\n1\nLead\n15\n25\nMercury\n0.1\n0.1",
  "extent": "E+W+S",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Regulations revoked (S.) (1.11.2025) by The Environmental Authorisations (Scotland) Amendment Regulations 2025 (S.S.I. 2025/165), reg. 1(2), sch. 21 para. 2 (with sch. 23)"
    },
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 1 para. 4 in force at 1.9.1989, see reg. 1(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1989/1263/schedule/1/paragraph/4",
    "retrieved_at": "2026-10-29T15:40:19.160833+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."
}