Potential analysis on the shallow aquifer in groundwater source field in the northern suburbs of Zhengzhou city

In view of the good open level of the shallow aquifer, the groundwater is apt to be contaminated and its exploitation potential is easy to be affected. The paper takes the shallow aquifer in the northern suburbs of Zhengzhou as example. According to TDS values observed from 1999 to 2004 and the results of water balance, TDS's variation and groundwater exploitation potential in the shallow aquifer are respectively analyzed. The main conclusions are as follows: (1) The geochemistry environment of the shallow aquifer in the monitor area (phreatic water-feeble confined water upside) has evolution tendency to worse; (2) The maximum exploitation potential is 160,000 m3/d.