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The pollutant transport from watershed to receiving waters is modeled for Spruce Creek basin. The data requirements for such a model are: daily rainfall; monthly lake evaporation; soil and land use breakdown; water quality history for the main indicators, total nitrogen, total phosphorus, suspended solids, and total organic carbon; surface flow and interflow delay coefficients; channel flow time; daily flow gage records; and channel flow characteristics. The model uses the SCS runoff curve number method to generate rainfall excess where the antecedent conditions are varied daily by a water budget analysis. The direct runoff is delayed and routed by the CDET and Muskingum method respectively. Daily pollutant loading are generated by the use of pollutant loading functions which relate pollutant mass loading to average daily flow for the pollutants desired. These are totaled for each year of simulation to predict average pollutants loading from the water shed in pounds per acre per year for use in water quality planning.