Citation:

Davis, M. J. AND R. Janke. Influence of Network Model Detail on Estimated Health Effects of Drinking Water Contamination Events. JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT. American Society of Civil Engineers (ASCE), Reston, VA, 141(1):., (2015).

Impact/Purpose:

Network model detail can influence the accuracy of results from analyses involving water distribution systems. Previous work has shown the limitations of skeletonized network models when considering localized water quality and hydraulic effects. Loss of model detail may be less important for effects that are not localized. The influence of model detail on such effects is examined here by comparing results obtained for contamination events using three large network models and several skeletonized versions of the models. Loss of model detail decreases the accuracy of estimated adverse effects related to contamination events and has the potential to have a large negative influence on the results of consequence assessments and the design of contamination warning systems. However, the adverse influence on analysis results can be minimized by restricting attention to high percentile effects (i.e., 95th percentile or higher).

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