{
  "url": "https://openlegislation.uk/eu-regulation-2020-741/annex-I/section-2/division-1/division-b",
  "json_url": "https://openlegislation.uk/eu-regulation-2020-741/annex-I/section-2/division-1/division-b.json",
  "legislation": "eur/2020/741",
  "legislation_title": "Regulation (EU) 2020/741 of the European Parliament and of the Council of 25 May 2020 on minimum requirements for water reuse (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2020-741",
  "path": "annex/I/section/2/division/1/division/b",
  "kind": "division",
  "number": "(b)",
  "heading": "Minimum requirements for monitoring",
  "text": "Reclamation facility operators shall perform routine monitoring to verify that the reclaimed water is in compliance with the minimum water quality requirements set out in point (a). The routine monitoring shall be included in the verification procedures of the water reuse system.\nThe samples to be used to verify compliance with the microbiological parameters at the point of compliance shall be taken in accordance with standard EN ISO 19458 or with any other national or international standards that ensure equivalent quality.\nTable 3 – Minimum frequencies for routine monitoring of reclaimed water for agricultural irrigation\nMinimum monitoring frequencies\nReclaimed water quality class\nE. coli\nBOD5\nTSS\nTurbidity\nLegionella spp.(when applicable)\nIntestinal nematodes(when applicable)\nA\nOnce a week\nOnce a week\nOnce a week\nContinuous\nTwice a month\nTwice a month or as determined by the reclamation facility operator according to the number of eggs in waste water entering the reclamation facility\nB\nOnce a week\nIn accordance with Directive 91/271/EEC\n(Annex I, Section D)\nIn accordance with Directive 91/271/EEC\n(Annex I, Section D)\n-\nC\nTwice a month\n-\nD\nTwice a month\n-\nValidation monitoring shall be performed before a new reclamation facility is put into operation.\nReclamation facilities that are already in operation and that meet the reclaimed water quality requirements set out in Table 2 of point (a) on 25 June 2020 shall be exempted from that validation monitoring obligation.\nHowever, validation monitoring shall be performed in all cases where equipment is upgraded, and when new equipment or processes are added.\nValidation monitoring shall be performed for the reclaimed water quality class with the most stringent requirements, Class A, to assess whether the performance targets (log10 reduction) are complied with. Validation monitoring shall entail the monitoring of the indicator microorganisms associated with each group of pathogens, namely bacteria, viruses and protozoa. The indicator microorganisms selected are E. coli for pathogenic bacteria, F-specific coliphages, somatic coliphages or coliphages for pathogenic viruses, and Clostridium perfringens spores or spore-forming sulfate-reducing bacteria for protozoa. Performance targets (log10 reduction) for the validation monitoring for the selected indicator microorganisms are set out in Table 4 and shall be met at the point of compliance, considering the concentrations of the raw waste water entering the urban waste water treatment plant. At least 90 % of validation samples shall reach or exceed the performance targets.\nIf a biological indicator is not present in sufficient quantity in raw waste water to achieve the log10 reduction, the absence of such biological indicator in reclaimed water shall mean that the validation requirements are complied with. The compliance with the performance target may be established by analytical control, by addition of the performance granted to individual treatment steps based on scientific evidence for standard well-established processes, such as published data of testing reports or case studies, or tested in a laboratory under controlled conditions for innovative treatment.\nTable 4 – Validation monitoring of reclaimed water for agricultural irrigation\nThe reference pathogens Campylobacter, Rotavirus and Cryptosporidium may also be used for validation monitoring purposes instead of the proposed indicator microorganisms. The following log10 reduction performance targets shall then apply: Campylobacter (≥ 5,0), Rotavirus (≥ 6,0) and Cryptosporidium (≥ 5,0).\nTotal coliphages is selected as the most appropriate viral indicator. However, if analysis of total coliphages is not feasible, at least one of them (F-specific or somatic coliphages) shall be analysed.\nClostridium perfringens spores is selected as the most appropriate protozoa indicator. However, spore-forming sulfate-reducing bacteria are an alternative if the concentration of Clostridium perfringens spores does not make it possible to validate the requested log10 removal.\nReclaimed water quality class\nIndicator microorganisms\nPerformance targets for the treatment chain(log10 reduction)\nA\nE. coli\n≥ 5,0\nTotal coliphages/F-specific coliphages/somatic coliphages/coliphages\n≥ 6,0\nClostridium perfringens spores/spore-forming sulfate-reducing bacteria\n≥ 4,0 (in case of Clostridium perfringens spores)\n≥ 5,0 (in case of spore-forming sulfate-reducing bacteria)\nMethods of analysis for monitoring shall be validated and documented in accordance with EN ISO/IEC-17025 or other national or international standards that ensure an equivalent quality.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "The reference pathogens Campylobacter, Rotavirus and Cryptosporidium may also be used for validation monitoring purposes instead of the proposed indicator microorganisms. The following log10 reduction performance targets shall then apply: Campylobacter (≥ 5,0), Rotavirus (≥ 6,0) and Cryptosporidium (≥ 5,0)."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Total coliphages is selected as the most appropriate viral indicator. However, if analysis of total coliphages is not feasible, at least one of them (F-specific or somatic coliphages) shall be analysed."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Clostridium perfringens spores is selected as the most appropriate protozoa indicator. However, spore-forming sulfate-reducing bacteria are an alternative if the concentration of Clostridium perfringens spores does not make it possible to validate the requested log10 removal."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2020/741/annex/I/section/2/division/1/division/b",
    "retrieved_at": "2026-11-01T14:42:35.836372+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."
}