{
  "url": "https://openlegislation.uk/water-supply-water-quality-regulations-2000/regulation-27",
  "json_url": "https://openlegislation.uk/water-supply-water-quality-regulations-2000/regulation-27.json",
  "legislation": "uksi/2000/3184",
  "legislation_title": "The Water Supply (Water Quality) Regulations 2000",
  "legislation_url": "https://openlegislation.uk/water-supply-water-quality-regulations-2000",
  "path": "regulation/27",
  "kind": "regulation",
  "number": "27",
  "heading": "Risk assessment for cryptosporidium",
  "text": "(1) Where at any time before 1st January 2001 a water undertaker has been required to comply with regulation 23B of the 1989 Regulations at a treatment works, it may on or after that date carry out a risk assessment.\n(2) Where a risk assessment has not been submitted to the Secretary of State pursuant to regulation 23A(1) of the 1989 Regulations, in respect of any treatment works from which water was first supplied for regulation 4(1) purposes after 30th June 1999 and before 1st January 2001, the water undertaker operating that works shall carry out a risk assessment on or before 28th February 2001.\n(3) Where, at any time after 31st December 2000, a water undertaker proposes to bring into operation a treatment works from which it intends to supply water for regulation 4(1) purposes, it shall carry out a risk assessment in respect of that works.\n(4) Where a water undertaker becomes aware of any factors which make it likely that a risk assessment will establish that there is a significant risk from cryptosporidium it shall notify the Secretary of State in writing, specifying the relevant factors.\n(5) The Secretary of State may at any time by notice in writing require a water undertaker to carry out a risk assessment by a date specified in the notice to establish whether there is a significant risk from cryptosporidium.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Regulations 23A and 23B were inserted by S.I. 1999/1524."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "The date on which regulation 23A of the Water Supply (Water Quality) Regulations 1989 came into force."
    }
  ],
  "outstanding_effects": [
    {
      "type": "words inserted",
      "affecting": "uksi/2005/2035",
      "affecting_title": "The Water Act 2003 (Consequential and Supplementary Provisions) Regulations 2005"
    },
    {
      "type": "substituted",
      "affecting": "uksi/2007/2734",
      "affecting_title": "The Water Supply (Water Quality) Regulations 2000 (Amendment) Regulations 2007"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2000/3184/regulation/27",
    "retrieved_at": "2026-10-29T08:09:45.572380+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."
}