Quality Standard for Groundwater of the People's Republic of China. Country/Territory China Document type Regulation Date 1993 Source FAO, FAOLEX Subject Water Keyword Standards Groundwater Geographical area Asia, Asia and the Pacific, East Asian Seas, Eastern Asia, North Pacific, North-West Pacific Entry into force notes Has come into force on October 01, 1994. Abstract The State Quality and Technique Supervision Bureau approves this Standard. It classifies the groundwater quality into five categories. It regulates the examination and evaluation of groundwater quality. Full text Chinese