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Evaluation of Microbial Risk Assessment Techniques and Applications

By
Jeffrey A. Soller
Jeffrey A. Soller
EOA, Inc., 1410 Jackson Street, Oakland, CA 94612, USA
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Adam W. Olivieri
Adam W. Olivieri
EOA, Inc., 1410 Jackson Street, Oakland, CA 94612, USA
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Joseph N. S. Eisenberg
Joseph N. S. Eisenberg
U.C. Berkeley, School of Public Health, USA
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Richard Sakajii
Richard Sakajii
California Department of Health Science, USA
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Richard Danielson
Richard Danielson
BioVir Laboratories, USA
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IWA Publishing
Volume
3
ISBN electronic:
9781780404141
Publication date:
April 2004

This investigation reviewed and evaluated methodologies used for microbial risk assessment with respect to their applicability for reclaimed water applications. The investigation was comprised of five primary components: a comprehensive database of articles, reports and books describing microbial risk assessment methodologies was established and reviewed. Risk assessment techniques and models were identified for estimating the public health risk from exposure to microorganisms via reclaimed water applications.

Two models were identified for further evaluation: a static (individual based) and a dynamic (population based).In the third component, the two models were evaluated to differentiate between the conditions under which models predict similar and substantially different estimations of risk.

Through numerical simulation, exposure/pathogen combinations were identified when it may be appropriate to use the less complex, static model. Case study risk assessment scenarios demonstrated the model selection process for three realistic, yet hypothetical reclaimed water scenarios.

The fourth component presents a constraint analysis for existing reuse regulations. The constraint analysis is carried out by documenting the existing reuse regulations. The constraint analysis is carried out by documenting the existing regs in three states for landscape irrigation and uses that comparison as a starting point to identify how microbial risk assessment may be useful within the context of existing and potential future water reuse regulations.

The investigation concludes by identifying criteria for a computer interface that would allow regulatory and/or municipal agencies/utilities to take advantage of the analysis discussed in the report.

This title belongs to WERF Research Report Series

ISBN: 9781780404141 (eBook)

ISBN: 9781843396840 (Print)

Evaluation of Microbial Risk Assessment Techniques and Applications
By: Jeffrey A. Soller, Adam W. Olivieri, Joseph N. S. Eisenberg, Richard Sakajii, Richard Danielson
DOI: https://doi.org/10.2166/9781780404141
ISBN (electronic): 9781780404141
Publisher: IWA Publishing
Published: 2004

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