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As a brief history of watershed modelling, the current paper explores how hydrologic modelling How hydrologic modelling has evolved since the introduction of computers, as well as what the future holds. In hydrology, advancements can be traced back to improvements in data collection and processing as well as concepts and theories, as well as tools for computing and analysis. New information gathering and processing methods, as well as an increase in the usage of information technology tools, are projected to help hydrology become more integrated with both technical and non-technical sectors. This means hydrology will become increasingly important in the 21st century in dealing with concerns such as food and water safety and sustainability in the next decades. Groundwater contamination with metals and hydrocarbons, as well as the formation of suffocating sinkholes due to concentrated storm flow, does not justify the use of artificial recharge in urban areas. Water from minor dams built along the catchment headwaters can be channelled to metropolitan areas where it can be used as a supplement to the existing water supply. In agricultural and pastureland areas, soil percolation was expected to be particularly significant. Correct fertilising, maintenance, and irrigation procedures are deemed vital to reduce the risk of groundwater contamination and suffocating sinkhole development in these places.