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Land use change is a major concern in developed and developing countries; nearly half of the world's land surface has been modified by human activity. Most land use change occurs without careful planning and scientific study to assess environmental impacts. Unplanned land use changes lead to local, regional, and global impacts that could be minimized if impact assessments were performed before changes occurred. The Long-Term Hydrological Impact Assessment (L-THIA) model is a tool to aid in planning decision-making and in developing regulations to minimize negative hydrologic impacts associated with land use change. The L-THIA model predicts surface runoff and nonpoint source pollutant loads from different land uses. However contributions from point sources also play a significant role in impairing water bodies. In this research point source water pollution assessment and baseflow prediction …