What are regulations on wastewater discharge rate to carry out environmental protection wastewater monitoring in Vietnam?
What are regulations on wastewater discharge rate to carry out environmental protection wastewater monitoring in Vietnam? What are regulations on entities, wastewater discharge rates and types required to carry out monitoring of wastewater in Vietnam? What is implementation of periodic monitoring of wastewater in Vietnam?
Please advice. Thankyou.
1. What are regulations on wastewater discharge rate to carry out environmental protection wastewater monitoring in Vietnam?
In Clause 1, Article 97 of Decree 08/2022/ND-CP stipulating wastewater discharge rate to carry out wastewater monitoring as follows:
1. The wastewater discharge rate shall be calculated according to the total design capacity of all works and equipment discharging wastewater into the environment specified in the environmental license and prescribed as follows:
a) The average wastewater discharge rate of a project or business involved in a type of production, business or service likely to cause environmental protection ranges from 200 m3/day (24 hours) to less than 500 m3/day (24 hours); the high wastewater discharge rate is 500 m3/day (24 hours) or more;
b) The large wastewater discharge rate of a project or business not involved in a type of production, business or service likely to cause environmental protection ranges from 500 m3/day (24 hours) to less than 1,000 m3/day (24 hours); the extremely high wastewater discharge rate is 1,000 m3/24 hours or more.
2. What are regulations on entities, wastewater discharge rates and types required to carry out monitoring of wastewater in Vietnam?
In Clause 2, Article 97 of Decree 08/2022/ND-CP stipulating entities, wastewater discharge rates and types required to carry out monitoring of wastewater as follows:
2. Entities, wastewater discharge rates and types required to carry out automatic and continuous monitoring of wastewater and periodic monitoring of wastewater are specified in the Appendix XXVIII enclosed herewith (except for businesses which connect their wastewater to the centralized wastewater treatment system, aquaculture facilities, facilities which have a system for treating wastewater produced from periodic tank cleaning separately from other wastewater treatment system, facilities which discharge cooling water not containing chlorine or disinfectants and facilities which discharge water to dewater the mines from which ordinary building materials or limestones are extracted). To be specific:
a) The entities specified in Column 2 with the discharge rates specified in Column 4 in the Appendix XXVIII shall carry out automatic and continuous monitoring of wastewater and periodic monitoring of wastewater as specified in clauses 3 and 4 of this Article;
b) The entities specified in Column 2 with the discharge rates specified in Column 5 in the Appendix XXVIII shall carry out automatic and continuous monitoring of wastewater or periodic monitoring of wastewater as specified in clauses 3 and 4 of this Article.
3. What is implementation of periodic monitoring of wastewater in Vietnam?
In Clause 3, Article 97 of Decree 08/2022/ND-CP stipulating periodic monitoring of wastewater as follows:
3. Periodic monitoring of wastewater:
a) Periodic wastewater monitoring parameters and frequency are specified in the environmental license. Monitoring parameters shall be determined on the following grounds: environmental technical regulation on wastewater; type of production, business and service; fuels, raw materials and chemicals used; production technology, waste treatment technology; parameters in excess of the permissible limits specified in the environmental technical regulation detected through inspection and imposition of penalties for violations against laws on environment; at the request of a project owner or business owner.
The licensing authority must not request the monitoring of other parameters without relying on the grounds mentioned in this point;
b) For a project or business which is continuously operating: wastewater shall be monitored every 03 months in the case where an EIA is required and every 06 months in the remaining cases.
For a project or business operating on a seasonal basis and required to carry out EIA: wastewater shall be monitored on one occasion if it operates on a seasonal basis for less than 03 months; 02 times if it operates on a seasonal basis for more than 03 months to 06 months; 03 times if it operates on a seasonal basis for more than 06 months to less than 09 months; 04 times if it operates on a seasonal basis for more than 09 months; the interval between two monitoring efforts must be at least 03 months.
For a project or business operating on a seasonal basis but not required to carry out EIA: wastewater shall be monitored at least once if it operates on a seasonal basis for less than 06 months; 02 times if it operates on a seasonal basis for more than 06 months; the interval between two monitoring efforts must be at least 06 months.
Regarding the parameter total organochlorine pesticides, total organophosphorus pesticides, total Polychlorinated Biphenyls (PCBs), dioxin and easily absorbed organic halogens (if any), wastewater must be monitored every year in all abovementioned cases.
Best Regards!
