Abstract:Groundwater environment is the important guarantee for human survival and social development. But the situation of groundwater environment is not optimistic in our country. It is essential to predicate the impact of a new built project and put forward scientific and effective groundwater pollution prevention and control measures. Aiming at a relocation project of a paper company in Zibo city, the concept model of hydrogeology has been set up and the temporal and spatial distribution of groundwater has been studied by building transient groundwater numerical simulation model. On this basis, numerical simulation of contaminants migration has been built. Choosing COD and NH3N as the pollution factors, the influence of the new building project in abnormal and accidental condition has been predicated. It is showed that persistent leakage of sewage will have more negative influence to the groundwater environment. The project is feasible after taking strict protection measurements and preventing leakage of waste water.