Application Abstract: The innovation research team,led by Prof.Yanxin Wang,awardee of the Fund of National Award for Outstanding Young Scholars of NSFC,has 21 members including one Changjiang Scholar and one National 1000 Talents Program awardee and has been formed as a result of long-term multi-disciplinary interaction with a common interest in cutting-edge studies and a common mission of meeting national strategic needs of safe water supply.Orientated towards groundwater pollution control and focused on the core issue of detailed characterization and understanding of the fate and transport of toxic substances in groundwater systems,the team has acquired the strength of multi-disciplinary fusion and innovation by developing theories and methodologies of groundwater monitoring,tracing,modeling and removal of toxic substances.They have not only contributed to the development of hydrogeology,but also provided advisory support for decision-making related to safe water supply.On such a well-established basis,the team will carry out field work in case study areas(the Datong basin in northern China and the Jianghan basin in central China)and systematic lab work and focus on understanding reactive transport of contaminants in groundwater systems and inventing new methods of remediation of contaminated subsurface environment.Great efforts will be made towards breakthroughs in theories and methodologies related to the core issue of the team.Through the implementation of the project,this innovation team will attain greater academic achievements and become an internationally recognized research group in environmental hydrogeology.