Revised Water Quality Guidelines and General Effluent Standards in the Philippines

The Department of Environment and Natural Resources (DENR) of Philippines published the Department Administrative Order (DAO) No. 2021-19  “Updated Water Quality Guidelines (WQG) and General Effluent Standards (GES) for Selected Parameters” in June 2021.
This Administrative Order partially amends the DENR AO No. 2016-08, which is a basic legislation on wastewater management. The main amendments include raising the standard values for six parameters.
It also stipulates the obligation to submit data on influent values of BOD for establishments with influent BOD equal to or greater than 3000 mg/L.The original text of this Order that amends the WQG and GES can be downloaded from the following URL.