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Considerations for large building water quality after extended stagnation
Caitlin R Proctor1, William J Rhoads2, Tim Keane3
1Division of Environmental and Ecological Engineering, Lyles School of Civil Engineering, Weldon School of Biomedical Engineering, School of Materials Engineering Purdue University West Lafayette Indiana.
Building closures during the COVID-19 pandemic risk stagnant water, posing health hazards. This work synthesizes strategies for preventing and remediating water stagnation in large buildings to ensure occupant safety.
Area of Science:
- Environmental Health
- Building Management
- Public Health
Background:
- Building closures due to COVID-19 increase the risk of water stagnation in plumbing systems.
- Stagnant water can harbor chemical and microbiological contaminants, leading to potential health risks for building occupants.
- Existing guidance for managing stagnant water varies in scope and detail.
Purpose of the Study:
- To synthesize preventative and remedial strategies for large building water systems experiencing stagnation.
- To provide a comprehensive resource for organizations developing water management guidance.
- To identify challenges and limitations associated with recommissioning water systems.
Main Methods:
- Literature synthesis of peer-reviewed, government, industry, and nonprofit sources.
- Focus on preventative practices, routine flushing, and decontamination methods for plumbing.
- Characterization of recommissioning actions, challenges, and safety considerations.
Main Results:
- Identified preventative practices to mitigate the need for extensive recommissioning.
- Detailed specific actions, challenges, and limitations for water system recommissioning.
- Highlighted essential considerations for worker and occupant safety during water system management.
Conclusions:
- Proactive water management plans are crucial for buildings experiencing closures.
- Synthesized strategies offer a foundation for developing consistent and effective guidance.
- Addressing stagnant water is vital for protecting public health in occupied buildings.
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