DENR Administrative Order No. 2021-19 Updated Water Quality Guidelines (WQG) and General Effluent Standards (GES) for Selected Parameters. Country/Territory Philippines Document type Regulation Date 2021 Source FAO, FAOLEX Subject Water Keyword Effluent waste water/discharge Freshwater pollution Pollution control Classification/declassification Water quality standards Geographical area Asia, Asia and the Pacific, East Asian Seas, North Pacific, South-Eastern Asia Entry into force notes This Order shall take effect fifteen (15) days after its publication in a newspaper of general circulation and upon acknowledgment of receipt of a copy thereof by the Office of the National Administration Registrar (ONAR), UP Law Center. Abstract This Order is issued to update the water quality guidelines for selected parameters based on the current classification of water bodies and on its beneficial use. In addition, the effluent standards for selected parameters are updated based on its perceived impact to the activities in the area and to the environment. This Order covers the updating of WQG and/or GES for the parameters mentioned in Section 3 namely AmmoniaasNH3-N, Boron, Copper as Dissolved Copper, Fecal Coliform, Phosphate as Phosphorus and Sulfate. This also cover additional requirements on the use of GES for strong wastewater for BOD, requirements for modification of Significant Effluent Quality Parameter (SEQP). Full text English References - Legislation Amends Administrative Order No. 2016 - O8 of the Department of Environment and Natural Resources (DENR) promulating the Water Quality Guidelines and General Effluent Standards of 2016. Legislation | Philippines | 2016 Keyword: Water quality standards, Water supply, Freshwater pollution, Freshwater resources management, Pollution control, Classification/declassification Source: FAO, FAOLEX