Uncertainty Evaluation of Coliform Bacteria Removal from Vegetated Filter Strip under Overland Flow Condition.

The article discusses research evaluating the uncertainty of the removal of coliform bacteria from vegetated filter strips (VFS) under overland flow conditions. VFS are an important component in the improvement of water quality because of its capacity to reduce sediment and nutrients transport to surface water. The method is also a good management practice in the control of manure-borne pathogen transport to surface water. The team used the kinematic wave overland flow model coupled with a convective-dispersive overland transport model, which is a model that accounts for variables such as surface straining of infiltrating bacteria. The model was calibrated with experimental data and Monte Carlo simulations performed to evaluate the uncertainty of VFS efficiency.