List of Clean Water Quality Parameters and Permissible Limit Thresholds in Vietnam

09:22, 11/07/2024

Circular 41/2018/TT-BYT was issued by the Ministry of Health of Vietnam on December 14, 2018, promulgating the list of clean water quality parameters and permissible limit thresholds.

List of clean water quality parameters and permissible thresholds in Vietnam are stipulated by Circular 41 in the following table:

No	Parameter Name	Unit	Permissible Limit
Group A Parameters
	Microbiological Parameters
1.	Coliform	CFU/100 mL	<3
2.	E.Coli or Thermotolerant Coliform	CFU/100 mL	<1
	Organoleptic and Inorganic Parameters
3.	Arsenic (As)(*)	mg/L	0.01
4.	Free Residual Chlorine(**)	mg/L	Within 0.2 - 1.0
5.	Turbidity	NTU	2
6.	Color	TCU	15
7.	Smell, Taste	-	No abnormal smell or taste
8.	pH	-	Within 6.0-8.5

See details in Circular 41/2018/TT-BYT effective from June 15, 2019.

-Thao Uyen-

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