This tool allow users to make hydrological and financial comparisons between conventional stormwater management strategies and green interventions.?Users can input site statistics, and a range of green infrastructure interventions to see outcomes in both hydrological (discharge and peak discharge by lot and site levels, total detention size requirements, and average annual discharge) and financial (life cycle costs, first-year site construction and maintenance costs, and benefits over a 100-year life cycle, by lot and in total) terms.?