Abstract:  WASP(water quality analysis simulation program) was developed by the EPA to simulate the water quality of rivers and lakes and so on. Based on the pollution situation and the water quality historical data of Dongchang Lake, using EUTRO, which is a submodule of WASP, a tested simulation was put forth on the water quality of Dongchang Lake in a specific time period. The simulation results show that the average relative error is small, and the change trend of each indicator is consistent. Therefore, the use of WASP in simulation of the water quality of Dongchang Lake is feasible and effective.

Key words: water quality model, the Dongchang Lake, water quality simulation, WASP