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Bacterial Contamination Associated With Electronic Faucets: A New Risk for Healthcare Facilities

Published online by Cambridge University Press:  02 January 2015

James Hargreaves ,
Larry Shireley ,
Shannon Hansen ,
Virginia Bren ,
Gordon Fillipi ,
Craig Lacher ,
Virginia Esslinger  and
Terry Watne
James Hargreaves*
Affiliation:
Department of Infection, Grand Forks, North Dakota
Larry Shireley
Affiliation:
North Dakota Department of Health, Grand Forks, North Dakota
Shannon Hansen
Affiliation:
Department of Infection, Grand Forks, North Dakota
Virginia Bren
Affiliation:
Department of Infection, Grand Forks, North Dakota
Gordon Fillipi
Affiliation:
Department of Infection, Grand Forks, North Dakota
Craig Lacher
Affiliation:
Grand Forks City Water Treatment Plant, Grand Forks, North Dakota
Virginia Esslinger
Affiliation:
Department of Research, Grand Forks, North Dakota
Terry Watne
Affiliation:
Medical Specialty Division, Altru Health System, Grand Forks, North Dakota
*
Department of Infection Control, Altru Health System, 1200 South Columbia Rd, PO Box 6002, Grand Forks, ND 58201-6002
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Abstract

Objective:

To investigate the safety of the hospital water supply following a major flood.

Design:

Surveillance was conducted of the hospital water supply as it entered the hospital and at randomly selected water faucets throughout the facility.

Setting:

A newly constructed surgical critical-care unit in a 265-bed community hospital that had to be evacuated and was out of operation for 6 weeks following a major flood of the city.

Methods:

Random water samples throughout the facility were analyzed for heterotrophic plate counts (HPCs), chlorine, and coliforms utilizing standard methods.

Results:

Water samples entering the hospital met appropriate standards, indicating the city water distribution system was not contaminated. Of 169 faucets tested, 13 (22%) of 59 electronic faucets exceeded the HPC threshold, and 12 (11%) of 110 manual faucets exceeded the HPC threshold (P<.14). A comparison of two brands of electronic faucets with manual faucets and with each other revealed that the HPC threshold was exceeded by 11 (32%) of 34 brand A faucets as compared to 12 (11%) of 110 manual faucets (P<.006). The HPC threshold was exceeded by 2 (8%) of 25 brand B faucets compared to 12 (11%) of 110 manual faucets (P<.94). Contamination rates of brand A and brand B faucets differed significantly (P<.003). Similar testing 2 months after hyperchlorination of the water supply indicated that the HPC threshold was exceeded by 16 (52%) of 31 brand A faucets compared to 10 (9.%) of 110 manual faucets (P<.0000003) and by 2 (18%) of 25 brand B faucets compared to 10 (9%) of 110 manual faucets (P=1.0).

Conclusions:

A certain brand of electronic water faucet used in the hospital was associated with unacceptable levels of microbial growth in water and was a continuing source of bacteria potentially hazardous to patients.

Type
Original Articles
Information
Infection Control & Hospital Epidemiology , Volume 22 , Issue 4 , April 2001 , pp. 202 - 205
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2001

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References

1. Heterotrophic plate count, Section 9215. In: Greenberg, A, Clesceri, L, Eaton, A, Franson, M, eds. Standard Methods for Water and Wastewater. 18th ed. Washington, DC: American Public Health Association;1992:9–31–9-35.Google Scholar
2. Presence-absence (P-A) coliform test, Section 9221 D. In: Greenberg, A, Clesceri, L, Eaton, A, Franson, M, eds. Standard Methods for Water and Wastewater. 18th ed. Washington, DC: American Public Health Association; 1992:9–51–9-52.Google Scholar
3. Lye, D, Dufour, A. Virulence characteristics of heterotrophic bacteria commonly isolated from potable water. Environmental Toxicology and Water Quality: An International Journal 1993;8:13–23.CrossRefGoogle Scholar
4. Rusin, PA, Rose, JB, Haas, CN, Gerba, CP. Health significance of pigmented bacteria in drinking water. Wat Sci Tech 1997;35:21–27.Google Scholar
5. Rusin, RA, Rose, JB, Haas, CN, Gerba, CP. Risk assessment of opportunistic bacterial pathogens in drinking water. Rev Environ Contam Toxicol 1997;152:57–83.Google ScholarPubMed
6. Swimming pools, Section 9213B. In: Eaton, A, Clesceri, L, Greenberg, A, Franson, M, eds. Standard Methods for the Examination of Water and Wastewater. 19th ed. Washington, DC: American Public Health Association; 1995:9–26–9-28.Google Scholar
7. Buck, AC, Cooke, EM. The fate of ingested Pseudomonas aeruginosa in normal persons. J Med Microbiol 1969;2:521–525.Google Scholar
8. Disinfectant residual in the distribution system. Federal Register June 29, 1989;54:27495.Google Scholar
9. Rutala, WA, Weber, DJ. Water as a reservoir of nosocomial pathogens. Infect Control Hosp Epidemiol 1997;18:609–616.Google Scholar
10. Piper, J, Tuttle, D, McGrail, L, Steel-Moore, L, Bollinger, E, Berg, D. P aeruginosa outbreak in a neonatal ICU due to construction related water line alterations. Proceedings of the 37th Interscience Conference on Antimicrobial Agents and Chemotherapy; September 27, 1997; Toronto, Ontario, Canada.Google Scholar
11. Bert, F, Maubec, E, Bruneau, B, Berry, P, Lambert-Zechovsky, N. Multi-resistant Pseudomonas aeruginosa outbreak associated with contaminated tap water in a neurosurgery intensive care unit. J Hosp Infect 1998;39:53–62.CrossRefGoogle Scholar
12. Drinking Water System Components—Health Effects. Developed by the consortium of the American Water Works Association Research Foundation, the Association of State Drinking Water Administrators, the American Water Works Association, the US Environmental Protection Agency Under Cooperative Agreement #CR-812144. Ann Arbor, MI: American National Standard/NSF International Standard; 1995:5-6,9–10. Appendix D.Google Scholar