Provides tools for water balance calculations (Water Balance Model Desktop, Water Balance Model Online, Water Balance Express, QUALHYMO Engine, Drainage Infrastructure Screening Tool), calculators (BC Water Conservation Caclulator, BC Agriculture Water Calculator, Agricultural Irrigation Scheduling Calculator, Landscape Irrigation Scheduling Calculator, BC Landscape Caclulator, Evapotranspiration Calculator). The Partnership for Water Sustainability in BC is a legal entity. It is a non-for-profit society that delivers services on behalf of government. They are in partnership with the Urban Watershed Research Institute (UWRI) from the US.