The purpose of this project is to investigate and review the standards of concerned groundwater contaminants, conduct survey on concerned contaminated regions and amending Groundwater Pollution Monitoring and Pollution Standards. Contamination potential and distribution of emerging contaminants such as persistent organic pollutants (POPs) and endocrine disrupting chemicals (EDCs) were assessed. Besides, the groundwater contaminants candidate list was updated to 177 substances and their priorities were rearranged. The arrangements and historical groundwater detection data became bases for the suggested prioritized concerned contaminant (eg. Perfluorooctanoic acid). The results and recommendations for control strategies were proposed. The concerned emerging contaminantsinclude including styrene, aldehyde and 1,2,3-Trichloropropane and the affected regions by emerging contaminants (Nonylphenol and Bisphenol A) were left unconfirmed. The appropriateness of regulated contaminants (cyanide and phenol) were reviewed and surveyed, and the potential region of concerned contaminants were identified through raw materials usage and historical investigation data. Groundwater investigation was conducted based on the use of raw materials and historical environmental monitoring data. Domestic groundwater concern substance investigation surveys were analyzed to propose priority substances, and to further discuss feasible groundwater control schemes at expert consultation meetings. In this project, background information of groundwater concerned regions were also collected. For the Simplified tap water system in groundwater concern areas, their contamination potential have been identified and division of responsibilities were presented. It is suggested that the results should be notified to the relevant units to promote cross-unit cooperation.

Emerging contaminants, Groundwater quality survey, Groundwater contaminants candidate list