Soil and Groundwater Pollution Remediation Act Article 27

(a) When competent authorities at all levels perform site verification pursuant to article 12, paragraph 1, if the sites groundwater pollutant concentrations meet groundwater pollution control standards, but the pollution source is unclear, the competent authorities shall make public announcement of a delineated groundwater pollution use restriction zone and the restricted items, and shall adopt necessary response measures pursuant to article 15, and apply mutatis mutandis the provisions of article 25 in the implementation thereof.(b) If, following preliminary assessment by the special municipality, county, or city competent authority, a site in the preceding paragraph is suspected of posing a severe threat to public health and living environment, the competent authority shall apply mutatis mutandis the provisions of article 14, article 15, and articles 22 through 26 governing remediation sites.