This project established the rules and process of contaminants screening for drinking water quality regulation, basing on the draft plan of “contaminants screening process of drinking water quality regulation” set by Taiwan Environmental Protection Administration. The detail process referred to the US EPA's Contaminant Candidate List (CCL) Classification Process. This project established the CCL Universe, the Preliminary CCL (PCCL), and the CCL. Monitoring plan for each contaminants in the CCL was also established and was going to carry out for at least one year. This project suggested to include a legislative monitor plan of non-regulated contaminants for water companies into “Drinking Water Management Act”. Therefore, the monitoring result could be a reference of regulation determination. In addition, the project updated the toxicity database of drinking water quality regulation items regarding to the regulation situation of 13 countries. This project also reviewed the regulation values of dioxin, indium, and molybdenum, and set the regulation values for haloacetic acids (HAA5) and aluminum. Moreover, this project reviewed the implement of drinking water quality safety of United States and WHO and how they deal with the violation of drinking water quality regulation. This project suggested to include an improvement plan of violation into “Drinking Water Management Act”. Besides, survey of microcystin- LR concentration was carried out in the drinking water treatment plants in this project. A short film was made in this project for establishing the correct idea of using drinking water for public.

contaminants screening process of drinking water quality regulation, contaminant candidate list (CCL), Preliminary CCL