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| Latest Information Letters to Water Companies |  |
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Latest DWI Press Releases |
| 16 March 2010 | Job Advert for Inspector Posts. Closing date: 30 April 2010. |
| 2 March 2010 | Information Letter 02/2010 (PDF 49KB) - Revision of Guidance on the regulatory responsibilities of new (inset) appointees in relation to public water supplies. (Inset Guidance PDF 286KB) |
| 24 February 2010 | North East London taste and odour incident |
| 15 February 2010 | Information Letter 01/2010 (PDF 75KB) on "Guidance on the use of Ultraviolet (UV) irradiation for the disinfection of public water supplies" (PDF 182KB) |
| 15 February 2010 | Updated DWI structure diagram (409KB) and Operations team structure diagram (191KB) from 15 February 2010 |
| 4 February 2010 | Advert for EPSRC Engineering Doctorate in Sustainability for Engineering and Energy Systems. Closing date 16th February 2010. |
| 4 January 2010 | The DWI's response to the consultation on the Cave Review of competition and innovation in water markets (PDF 206KB) |
| 18 November 2009 | Revision of Information Letter 05/2009 on Taste and Odour. (Version 2 - PDF 164KB) |
| 12 November 2009 | DWI structure diagram (133KB) and Operations team structure diagram (68KB) from 16 November 2009 (as referred to in the information letter 08/2009 (PDF 88KB)) |
| 16 October 2009 | Information Letter 10/2009 - Revision of Guidance on the Water Supply (Water Quality) Regulations 2000/2001 specific to PFOS (perfluorooctane sulphonate) and PFOA (perfluorooctanoic acid) concentrations in drinking water |
| 12 October 2009 | DWI's response to Ofwat's Draft Determinations for the period 2010-2015 |
| 7 October 2009 | Press Release River Trent pollution incident (PDF 59KB) |
| 15 September 2009 | Drinking Water Safety - Guidance to health and water professionals (PDF 5.09MB) - a joint publication by the Drinking Water Inspectorate and the Health Protection Agency which brings together current information and advice on the management of incidents affecting drinking water quality for use by health professionals and members of the water industry. |
| 7 September 2009 | Advertisement - Chief Drinking Water Inspector - Principal Scientific Officer, Department of the Environment - Northern Ireland Environment Agency |
| 19 August 2009 | Information Letter 08/2009 - Reappointment of Chief Drinking Water Inspector and further update on the restructuring of the Drinking Water Inspectorate (pdf 88KB) |
| 6 July 2009 | Memorandum of Understanding agreed between DWI and CCWater (pdf 420 KB) |
| 30 July 2009 | Chief Inspector reappointed |
| 14 July 2009 | Press Release - Northern Region tap water quality results (pdf 339KB |
| 13 July 2009 | Press Release - Wales tap water quality results (pdf 323KB) |
| 9 July 2009 | Press Release - Central and Eastern Region tap water quality results (pdf 433KB) |
| 7 July 2009 | Press Release - Western Region tap water quality results |
| 6 July 2009 | Press Release - Thames & Southern Region tap water quality results |
| 2 July 2009 | Drinking Water 2008 - DWI Annual Report |
| 18 June 2009 | Informaton Letter 07/2009 - Sampling during swine flu pandemic (PDF 106KB) |
| 8 June 2009 | New telephone numbers for the DWI from 15th June 2009. The main enquiry line will be 0300 068 6400 |
| 9 April 2009 | Information Letter 06/2009 - The Water Industry (Suppliers' Information) Direction 2009 (PDF 176 KB) |
| 19 March 2009 | Information Letter 05/2009 - Guidance on the reporting and investigation of taste and odour detections (PDF 164 KB) |
| 05 March 2009 | Information Letter 04/2009 - Submission of raw water monitoring data to the Drinking Water Inspectorate.(PDF 144 KB) |
| 27 February 2009 | Information Letter 03/2009 - Further guidance on changes within the Operations team and the Inspector Liaison role. |
| 19 January 2009 | Information Letter 02/2009 - Changes to the process for assessment of drinking water quality event notifications. (PDF 106KB) |
| 16 January 2009 | Information Letter 01/ 2009 - New Structure for the Drinking Water Inspectorate Operations Team |
| 13 January 2009 | Job vacancies within DWI. Closing date 27th February 2009 |
| 5 November 2008 | Press Release 03/08 - Pitsford Water Treatment Works – Incident Assessment Concluded The Drinking Water Inspectorate has today issued the following press release announcing the conclusion of the investigation into outbreak of Cryptosporidiosis in the community supplied by the Pitsford Water Treatment works in Northamptonshire in June 2008. For a copy of the incident assessment letter . please contact the Inspectorate on 0207 270 3370 or at dwi.enquiries@defra.gsi.gov.uk |
| 20 October 2008 | Information Letter 11/08 - The 2009 Periodic Review of Prices - Further Guidance on Drinking Water Quality Requirements |
| 6 October 2008 | Information Letter 10/2008 - Publication of the latest version of the Guidance on the Water Supply (Water Quality) Regulations 2000 (England) and 2001(Wales) incorporating the 2007 amendment regulations. |
| 29 September 2008 | Job vacancies within DWI. Closing date 24th October 2008 |
| 10 September 2008 | Information Letter 09/2008 - Publication of research report on N-Nitrosodimethylamine (NDMA) in drinking water and associated guidance to the industry |
| 1 September 2008 | NEWS - August 2008 - Mynydd Llandegai Water Treatment Works, North Wales Following the detection of an increased number of oocycts of the parasite Cryptosporidium in the treated water from the Mynydd Llandegai Water Treatment Works, a boil water notice has been issued to 45,000 people as a precautionary measure. Advice on protecting health has been issued by the National Public Health Service for Wales see http://www.wales.nhs.uk/sites3/news.cfm?orgid=719&contentid=10429 The Drinking Water Inspectorate will investigate and publish findings in due course. |
| 29 August 2008 | Information Letter 08/2008 - Changes to the approval of disinfectants for emergency use. |
| 7 August 2008 | Information Letter 07/2008 - Guidance on the requirement to submit a risk assessment under regulations 27 and 28 of the Water Supply (Water Quality) Regulations 2000 (2001 in Wales) (Amendment) Regulations 2007 |
| 26 June 2008 | Drinking Water for England and Wales 2007 report available online |
| 20 June 2008 | Information Letter 06/2008 Audit of Regulation 35(1) |
| 19 May 2008 | Press Release - Three Valleys pleads guilty to supply water unfit for human consumption |
| 3 April 2008 | Private Water Supplies and Bottled Water briefing day - 8th July 2008 at the RIPH |
| 20 March 2008 | Job Advert for Inspectors in DWI - closing date 25th April 2008 |
| 20 March 2008 | Calls for Expressions of Interest for 4 new research projects. Closing date: 30th April 2008. |
| 17 March 2008 | Press Release - Incident Assessment letter on Mythe Water Treatment Works |
| 25 February 2008 | Information Letter 5/2008 Concessionary supplies - further guidance |
| 21 February 2008 | Information Letter 4/2008 Regulation 31 |
| 18 February 2008 | Information Letter 3/2008 Guidance on the notification of events |
| 25 January 2008 | Information Letter 2/2008 The 2009 Periodic Review of Prices - Guidance on Drinking Water Quality Requirements |
| 14 January 2008 | Information Letter 1/2008 The Water Supply (Water Quality) Regulations 2000 as amended - Publication of an unofficial consolidated version of the Regulations |
| 28 December 2007 | Information Letter 10/2007 Updated guidance on the notification of events. |
| 03 December 2007 | Information Letter 9/2007 The Water Supply (Water Quality) Regulations 2000 (Amendment) Regulations 2007 - Changes to water company data tables |
| 30 November 2007 | Information Letter 8/2007 Guidance on interpretation of Regulation 16(2)(d)(i) of the Water Supply (Water Quality) Regulations 2000 (2001 in Wales) |
| 13 November 2007 | Incident Assessment Letter now available for Cryptosporidiosis outbreak in North West Wales in 2005. Please call 0207 270 3370 or e-mail dwi.enquiries@defra.gsi.gov.uk" to receive a copy |
| 11 October 2007 | Press Release Dwr Cymru Welsh Water pleads guilty to supplying water unfit for human consumption |
| 28 September 2007 | Information Letter 7/2007 Outcome of the consultation exercise on amendment to the Water Supply (Water Quality) Regulations 2000 - Publication of the amendment regulations and the government response to the consultation |
| 10 September 2007 | Notification of RSC half day seminar Taste and Odour in Drinking Water - Tuesday 20th November 2007 |
| 05 September 2007 | Information Letter 6/2007 Outcome of the consultation exercise on amendment to the Water Supply (Water Quality) Regulations 2000 - Requirements for raw water monitoring |
| 25 July 2007 | FLOOD ADVICE - For consumers affected by the current floods and
seeking advice about drinking water issues and other concerns, the Drinking Water
Inspectorate supports the advice given by the Health Protection Agency which is available
at www.hpa.org.uk/flooding/default.htm.
A regularly updated list of bowser locations for Severn Trent customers is available on the Severn Trent website. |
| 11 July 2007 | Latest drinking water quality results - Thames Region |
| 06 July 2007 | Latest drinking water quality results - Midlands Region |
| 04 July 2007 | Latest drinking water quality results - Southern Region |
| 26 June 2007 | Drinking Water 2006 for England and Wales released today |
| 20 June 2007 | South West Water pleads guilty to supplying water unfit for human consumption |
| 1 June 2007 | Guidance on the Water Supply (Water Quality) Regulations 2000/2001 specific to PFOS (Perfluorooctane Sulphonate) and PFOA (Perfluorooctanoic Acid) concentrations in drinking water |
| 22 May 2007 | New Structure for the Drinking Water Inspectorate(2) |
| 09 May 2007 | New Structure for the Drinking Water Inspectorate(1) |
| 15 February 2007 | Summary report for the vertical audits for pesticide parameters |
| 29 January 2007 | Appointment of Deputy Chief Inspector (Operations) |
| 24 January 2007 | List of Approved Products and Processes - December 2006 |
| 29 December 2006 | Consultation Paper on the amendment of the Water Supply (Water Quality) Regulations 2000 and the Water Supply (Water Quality) Regulations 2001 |
| 6 December 2006 | Press Release United Utilities pleads guilty to charge of supplying water unfit for human consumption |
| 4 December 2006 | Information letter 11/2006 Technical audit of water companies under section 86 of the Water Industry Act 1991: Summary report for the vertical audits for non-microbiological parameters, 2005 |
| 28 November 2006 | Press Release: NPHS for Wales publishes report on the cryptosporidiosis outbreak which occurred in North Wales in Autumn 2005 |
| 23 November 2006 | Press Release Thames Water pleads guilty to charge of supplying water unfit for human consumption. |
| 14 September 2006 | Information Letter 10/2006 Cryptosporidiosis in England and Wales |
| 11 September 2006 | Information Letter 09/2006 Update on the in-situ resin lining of water mains under Regulation 31 (10) (b) of the Water Supply (Water Quality) Regulations 2000 (2001 Wales) |
| 17 August 2006 | Call for papers for the forthcoming conference - Water Contamination Emergencies: Collective Responsibility |
| 28 June 2006 | Press Release - Inspectorate delivers joined-up action on drinking water quality |
| 16 June 2006 | Press Release - Independent test show tap water not affected by Buncefield fire |
| 22 May 2006 | Press Release - Yorkshire Water pleads guilty to charge of supplying water unfit for human consumption |
| 17 March 2006 | Information Letter 08/2006 Contact arrangements for the notification of events under the Water Undertakers (Information) Direction 2004 and notification of crytosporidium anomalies |
| 17 March 2006 | Information Letter 07/2006 Further update on the restructuring of the Drinking Water Inspectorate, including structure diagram |
| 22February 2006 | Information Letter 06/2006 DWI Drinking Water Quality Improvement Programmes - Process for agreeing changes to improvement programmes associated with legal instruments |
| 17 February 2006 | Information Letter 05/2006 Control of Water Treatment Chemicals |
| 10 February 2006 | Information Letter 04/2006 Regulation 31 of the Water Supply (Water Quality) Regulations 2000 and 2001: Annual List of Approved Products and Processes - December 2005 |
| 09 February 2006 | Information Letter 03/2006 Issues relating to 2006 monthly data submissions to the Drinking Water Inspectorate, and information required for inclusion in the Chief Inspector's Report. |
| 07 February 2006 | List of Approved Products and Processes - December 2005 |
| 18 January 2006 | Information Letter 02/2006 Concessionary Supplies: Reporting of compliance results and the calculation of Operational Performance Indices |
| 06 January 2006 | Cryptosporidium Advice Letter Cryptosporidiosis |
| 06 January 2006 | Information Letter 01/2006 Annual Provision of Information on Consumer Contacts |
| 05 January 2006 | Cryptosporidium Advice Letter Cryptosporidiosis in North Wales |
| 16 December 2005 | Information Letter 17/2005 Cryptosporidiosis in England and Wales |
| 4 November 2005 | Summary report of the responses and learning from the DWI Local Authority consultation January 2005 |
| 21 October 2005 | Review of evidence for relationship between incidence of cardiovascular disease and water hardness The Inspectorate has released a report which reviews the available evidence on any link between water hardness and the incidence of cardiovascular disease. The review was conducted by a team lead by Professor Paul Hunter at the University of East Anglia. The main findings of the review was that it found evidence from a number of studies to support the longstanding apparent inverse relationship between water hardness and cardiovascular disease. At present there is insufficient evidence to confirm whether the apparent effect is causal or to elucidate its nature. The report does not comment on potential policy implications but provides a useful evidence base. The Inspectorate sees the report as an important building block for informing the scientific debate on the issue of water hardness. The report will be presented at a forthcoming WHO workshop on the issue. |
| 13 October 2005 | Information Letter 16/2005 Cryptosporidium web site and the latest revision of Part 1 of the Standard Operating Protocol (SOP) |
| 10 October 2005 | Information Letter 15/2005 Distribution Operation and Maintenance Strategies (DOMS) - update to DWI requirements and expectations |
| 10 October 2005 | A Brief Guide to Drinking Water Safety Plans (PDF 256KB) |
| 03 October 2005 | Newly formed Consumer Council for Water |
| 20 September 2005 | Information Letter 14/2005 List of Water Treatment Works in England and Wales |
| 7 September 2005 | Information Letter 13/2005 Further updated on the restructuring of the Drinking Water Inspectorate |
| 22 August 2005 | Information Letter 12/2005 Guidance on sample and sample extract stability trials and the preservation and preparation of samples for metals analysis. |
| 26 July 2005 | Information Letter 11/2005 Guidance to inset appointees on their regulatory responsibilities |
| 15 July 2005 | A case control study investigating drinking water & dairy products in
the aetiology of Crohn's Disease - A possible role for Mycobacterium avium
paratuberculosis -The CMAW Study - Final
Report (Adobe 7.8MB) plus DWI's Q&A report conclusions |
| 13 July 2005 | Information Letter 10/2005 Update on the restructuring of the Drinking Water Inspectorate |
| 30 June 2005 | Information Letter 09/2005 Regulation 31 of the Water Supply (Water Quality) Regulations 2000 and 2001: Approval and use of packing materials in water treatment processes |
| 21 June 2005 | Information Letter 08/2005 Technical audit of water companies under Section 86 of the Water Industry Act 1991: Summary report for the vertical audits for non microbiological parameters, 2004. |
| 18 May 2005 | Guidance to the Water Supply (Water Quality) Regulations for England (2000) and Wales (2001) (pdf 1.9MB) |
| 16 May 2005 | Information Letter 07/2005 Contact Arrangements for the Notification of Events under the Water Undertakers (Information) Direction 2004 and notification of cryptosporidium anomalies. |
| 13 May 2005 | Information Letter 06/2005 Update on the restructuring of the Drinking Water Inspectorate |
| 10 May 2005 | Job Opportunities within DWI (pdf 149KB) |
| 28 April 2005 | Memorandum of understanding between the UK Drinking Water regulators. |
| 11 April 2005 | Information letter 05/2005 Code of Practice on technical aspects of Fluoridation in water supplies 2005. |
| 08 April 2005 | Information letter 04/2005 New Structure of the Drinking Water Inspectorate. |
| 29 March 2005 | Regulation 31 letter -Regulation 31 letter 03/2005 Notice of intention to modify conditions of approval for in-situ coatings |
| 24 January 2005 | Information letter 03/2005 Guidance on calibration and analytical quality control of residual chlorine measurements. |
| 21 January 2005 | Information letter 02/2005 Issues relating to the submission of sample data to the DWI |
| 18 January 2005 | Competition - DWI's response to consultation on Access Code Guidance |
| 11 January 2005 | Information Letter 01/2005 Requirements for Monitoring Radioactivity in Water Supplies |
15 December 2004 |
Newly revised draft programme for the Conference on Water Contamination Emergencies: Enhancing our Response |
25 November 2004 |
Information letter 14/2004 Cryptosporidium in water supplies: Anomaly reporting for the Water Supply (Water Quality) Regulations 2000 (England) and Water Supply (Water Quality) Regulations 2001 (Wales). |
23 November 2004 |
Information letter 13/2004 Common Carriage: Guidance on the drinking water quality aspects. |
12 November 2004 |
Information letter 12/2004 Guidance on the implementation of paragraph 7(1) of the Water Undertakers (Information) Direction 2004. |
4 November 2004 |
Information letter 11/2004 Information requirements following notification of an exceedence of a regulatory standard |
25 October 2004 |
Information letter 10/2004 Monitoring drinking water at establishments where water is supplied to the public |
21 September 2004 |
3rd Edition of WHO Guideline Values for Drinking Water Quality The World Health Organisation has published the third edition of its the Guidelines for Drinking Water Quality. The WHO Guidelines form the basis for regulation of drinking water quality all over the world. The third edition is particularly important because it describes the "Water Safety Framework" approach which stresses the complementary roles of the water industry, regulators and environmental protection agencies in the protection of drinking water quality. For further information visit: http://www.who.int/water_sanitation_health/dwq/en/flyerguidelines3.pdf |
15 September 2004 |
Draft Programme for the Conference on Water Contamination Emergencies: Enhancing our Response |
9 August 2004 |
Observer claim that there are traces of Prozac in Drinking Water is incorrect |
2 August 2004 |
Call for Papers for the Conference on Water Contamination Emergencies: Enhancing our Response |
7 July 2004 |
Press Release on the Drinking Water 2003 report - Further improvements in tap water quality - Where do we go from here? |
7 July 2004 |
Water Quality in your area |
