{
  "url": "https://openlegislation.uk/eu-decision-2014-738/annex/division-3/division-1.1/division-1.1.7/division-BATn3",
  "json_url": "https://openlegislation.uk/eu-decision-2014-738/annex/division-3/division-1.1/division-1.1.7/division-BATn3.json",
  "legislation": "eudn/2014/738",
  "legislation_title": "Commission Implementing Decision of 9 October 2014 establishing best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for the refining of mineral oil and gas (notified under document C(2014) 7155) (Text with EEA relevance) (2014/738/EU)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2014-738",
  "path": "annex/division/3/division/1.1/division/1.1.7/division/BATn3",
  "kind": "division",
  "number": "BAT 13",
  "heading": "When further removal of organic substances or nitrogen is needed, BAT is to use an additional treatment step as described in Section 1.21.2.",
  "text": "Table 3\nBAT-associated emission levels for direct waste water discharges from the refining of mineral oil and gas and monitoring frequencies associated with BAT\nNot all parameters and sampling frequencies are applicable to effluent from gas refining sites.\nRefers to a flow-proportional composite sample taken over a period of 24 hours or, provided that sufficient flow stability is demonstrated, a time-proportional sample.\nMoving from the current method to EN 9377-2 may require an adaptation period.\nWhere on-site correlation is available, COD may be replaced by TOC. The correlation between COD and TOC should be elaborated on a case-by-case basis. TOC monitoring would be the preferred option because it does not rely on the use of very toxic compounds.\nWhere total-nitrogen is the sum of total Kjeldahl nitrogen (TKN), nitrates and nitrites.\nWhen nitrification/denitrification is used, levels below 15 mg/l can be achieved.\nParameter\nUnit\nBAT-AEL(yearly average)\nMonitoring frequency and analytical method (standard)\nHydrocarbon oil index (HOI)\nmg/l\n0,1-2,5\nDaily\nEN 9377- 2\nTotal suspended solids (TSS)\nmg/l\n5-25\nDaily\nChemical oxygen demand (COD)\nmg/l\n30-125\nDaily\nBOD5\nmg/l\nNo BAT-AEL\nWeekly\nTotal nitrogen, expressed as N\nmg/l\n1-25\nDaily\nLead, expressed as Pb\nmg/l\n0,005-0,030\nQuarterly\nCadmium, expressed as Cd\nmg/l\n0,002-0,008\nQuarterly\nNickel, expressed as Ni\nmg/l\n0,005-0,100\nQuarterly\nMercury, expressed as Hg\nmg/l\n0,0001-0,001\nQuarterly\nVanadium\nmg/l\nNo BAT-AEL\nQuarterly\nPhenol Index\nmg/l\nNo BAT-AEL\nMonthly\nEN 14402\nBenzene, toluene, ethyl benzene, xylene (BTEX)\nmg/l\nBenzene: 0,001-0,050\nNo BAT-AEL for T, E, X\nMonthly",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Not all parameters and sampling frequencies are applicable to effluent from gas refining sites."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Refers to a flow-proportional composite sample taken over a period of 24 hours or, provided that sufficient flow stability is demonstrated, a time-proportional sample."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Moving from the current method to EN 9377-2 may require an adaptation period."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "Where on-site correlation is available, COD may be replaced by TOC. The correlation between COD and TOC should be elaborated on a case-by-case basis. TOC monitoring would be the preferred option because it does not rely on the use of very toxic compounds."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "Where total-nitrogen is the sum of total Kjeldahl nitrogen (TKN), nitrates and nitrites."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "When nitrification/denitrification is used, levels below 15 mg/l can be achieved."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2014/738/annex/division/3/division/1.1/division/1.1.7/division/BATn3",
    "retrieved_at": "2026-11-01T15:14:36.977162+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."
}