WATER SYSTEMS
Risk Mitigation. Curr Opin Biotechnol 2019 Jun; 57: 127–136.
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nlm.nih.gov/pmc/articles/PMC6924000/
5 BBC News. 3 November 2022. Papworth Hospital: Contaminated water led to women’s deaths – inquest. https://tinyurl. com/7ahsbknh
6 Mycobacterium abscessus in Healthcare Settings. Centers for Disease Control and Prevention.
www.cdc.gov/hai/ organisms/
mycobacterium.html
7 International Organization for Standardization. Wikipedia.
https://tinyurl.com/2ww9ummz
8 Certification and accreditation. Difference Between Certification and Accreditation.
DifferenceBetween.net.
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Klebsiella pneumoniae, which can affect middle-aged and older men, and is becoming antibiotic-resistant.
Selecting the correct laboratory is important to ensure that water analysis is undertaken within specified timeframes. The HSE’s HSG 274 Technical guidance stipulates that water sample testing for Legionella should be performed in a UKAS-accredited laboratory, although alternative quantitative testing methods may be used if validated using ISO 17994, and they meet the required sensitivity and specificity.
On-site rapid analysis Although no replacement for a UKAS laboratory test, on-site rapid analysis technology can provide invaluable reassurance to, for example, Maintenance managers, Responsible Persons, and Duty Holders. Using on-site testing to quickly identify the presence of Legionella enables hospital management teams to make faster decisions on the correct remedial actions. Using rapid on-site testing can significantly reduce Pseudomonas aeruginosa positive outlets through a faster sampling turnaround, and more rapid implementation of remedial work, to return outlets to use considerably more quickly. Water sampling for both Legionella and Pseudomonas aeruginosa bacteria must be carried out by a competent, trained, and methodical individual fully familiar with HTM 04-01 and the HSE’s HSG 274 Technical guidance, and the following British Standards: n BS 7592: 2022 Sampling for Legionella bacteria in water systems – Code of practice.
n BS 8554: 2015 Code of practice for the sampling and monitoring of hot and cold-water services in buildings.
Guidance documentation n HTM 04-01: Safe water in healthcare
38 Health Estate Journal February 2023
premises. Department of Health and Social Care. 20 May 2016.
n Health Technical Memorandum 04-01 Part C: Pseudomonas aeruginosa – advice for augmented care units. Department of Health. March 2013.
n BS 8580-1: 2019 Water quality – Risk assessments for Legionella control – Code of practice.
n BS 8580-2: 2022 Water quality Part 2: Risk assessments for Pseudomonas aeruginosa and other waterborne pathogens – Code of practice.
n DWI, 2021. Legislation, Drinking Water Inspectorate. DWI.
www.dwi.gov.uk/ water-companies/legislation/
n The Water Supply (Water Fittings) Regulations 1999. WRAS.
n BS 7592: 2022 Sampling for Legionella bacteria in water systems – Code of practice.
n Health Technical Memorandum 04-01: Safe water in healthcare premises. Part B: Operational management. Department of Health. 20 May 2016.
References 1 Vaerewijck MJM, Huys G, Palomino JC, Swings J, Portaels F. Mycobacteria in drinking water distribution systems: ecology and significance for human health. FEMS Microbiol Rev 2005; Nov 29 (5):911-34.
2 Aspiration Pneumonia Symptoms. Treatment and Information. Patient online.
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3 Qureshi S. MD, FACP. (Chief Editor: Bronze MS. MD) Pseudomonas aeruginosa Infections Medication. Medscape. 3 March 2020. https://tinyurl. com/ypfpw792
4 Dowdell K, Haig S-J, Caverly L-J, Shen Y, LiPuma JJ, Raskin L. Nontuberculous Mycobacteria in Drinking Water Systems – The Challenges of Characterization and
Karina Jones
Karina Jones MIHEEM, MIET, MWMSoc, MWES, is an IHEEM- registered Authorising Engineer (Water), and a member of the Institute’s Water Technical Platform, who gained extensive water management company experience before becoming an AE (Water) at consulting engineers, Eta Projects. She specialises in healthcare. She is also a member of the Water Management Society, the Institution of Engineering and Technology, and the Women’s Engineering Society. She has extensive experience providing advice on water hygiene management, advising clients on the legal drivers for statutory obligations and ACOP L8 compliance, and providing comprehensive guidance on microbiological waterborne contamination in water systems to NHS Trusts.
She delivers regular water hygiene training, and works closely with soft FM personnel and Estates Departments, and others involved with water hygiene, through regular communication systems, audits, testing and verification, reviews of Water Safety Plans, and Written Schemes of Control.
CDC
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