Strategies for monitoring the bacteriological quality of water supply in distribution systems
Monitoring strategies for characterizing the bacteriological quality of water in the distribution system require a complete understanding of a variety of interrelated aspects that include treated water quality, water-supply retention in storage and infrastructure deterioration in the distribution system. A study of field data from several water-supply utilities was used to highlight some innovative interpretations of compliance monitoring data. Major perceptions include: The use of a 5% coliform frequency of occurrence limit highlights compliance significance in those situations where there are clusters of positive samples containing less than 4 coliforms per 100 mL. Unfortunately, this presence/absence concept does not provide any indication of the magnitude of a contamination event.
- Research Organization:
- Environmental Protection Agency, Cincinnati, OH (USA). Risk Reduction Engineering Lab.
- OSTI ID:
- 5191867
- Report Number(s):
- PB-90-112632/XAB; EPA-600/D-89/123
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
WATER POLLUTION
BACTERIA
WATER QUALITY
BIOLOGICAL INDICATORS
WATER SUPPLY
COLIFORMS
MONITORING
STORAGE
ENVIRONMENTAL QUALITY
MICROORGANISMS
POLLUTION
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
550700 - Microbiology