Water Quality, Groundwater Standards (TCVN 5944, 1995) Back to : Index : Environmental Law (ASEAN-10) : Vietnam : Implementing Regulations Disclaimer
WATER QUALITY: GROUND WATER QUALITY STANDARD TCVN 5944-19951.    Scope 1.1    This standard specifies parameter limits and maximum allowable concentrations of pollutants in ground water. 1.2    This standard is applied to evaluation of quality of a ground water source and to monitoring of pollution status of the ground water in a specific area. 2.    Limitation Values 2.1    Parameters, pollutants and limitation value of those in ground water are shown in the table 1. 2.2    Standard methods of analysis of parameters and concentrations of pollutants in ground water are specified in available current TCVNs. Table 1 Parameter Limits and Maximum Allowable Concentrations of Pollutants in Ground WaterNºParameter and PollutantUnitLimitation Value1pH value 6,5 - 8,52ColourPt - Co5 - 503Hardness (as CaCO3)mg/l300 - 5004Total solidsmg/l750 - 15005Arsenicmg/l0,056Cadmiummg/l0,017Chloridemg/l200 - 6008Leadmg/l0,059Chromium (VI)mg/l0,0510Cyanidemg/l0,0111Coppermg/l1,012Fluoridemg/l1,013Zinkmg/l5,014Manganesemg/l0,1 - 0,515Nitratemg/l4516Phenol compoundmg/l0,00117Ironmg/l1 - 518Sulphatemg/l200 ¸ 40019Mercurymg/l0,00120Seleniummg/l0,0121Fecal coliMPN/100 mlNot detectable22ColiformMPN/100 ml3Top of Page
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