Abstract: As the symbols of Jinan city, the springs are essentially valuable for the citys economy and society. It is important to follow the influence of sudden sewage leakage. This paper conceptualizes the concept model of hydrogeology. It studies the temporal and spatial distribution of groundwater and the features of contaminant transportation using the building transient groundwater flow model. On this basis, the effect of a new built project to the groundwater environment is researched. The features of the contaminant transportation are investigated by setting different longitudinal and transverse dispersities. The result shows that the advection plays a leading role in the longitudinal transportation of contaminants in the area near the spring groups. But it is exactly the opposite in the transverse direction. The research result has the model significance to the groundwater environment conservation and the groundwater pollution control.