A catchment-scale model to predict spatial and temporal burden of E. coli on pasture from grazing livestock.

•The ViPER model is applied to two contrasting catchments.•Outputs represent spatially distributed maps of predicted E. coli burden to land.•Model shows how E. coli burden varies by catchment type and land use composition.•ViPER enables spatially targeted decision-making for managing E. coli in catchments.