Drinking Water Quality Standard

Drinking water quality standard

Parameter
Parameter Short Name Group MALAYSIA STANDARD (mg/l (unless otherwise stated))
Raw Water Treated Water
Minimum Maximum Minimum Maximum
Total Coliform TC 1 0 5000 MPN / 100 ml 0 in 100 ml 0
E.coli E.coli 1 0 5000 MPN / 100 m 0 in 100 ml 0
Turbidity NTU 1 0 1000 NTU 0 5 NTU
Color TCU 1 0 300 TCU 0 15 TCU
PH PH 1 5.50000 9.00000 6.50000 9.00000
Free Residual Chlorine BCl₂ 1 - - 0.20000 5.00000
Temperature °C 1 - - - -
Clostridium perfringens (including spores) Clostridium perfringens (including spores) 1 - - 0 Absent
Coliform bacteria Coliform bacteria 1 - - - -
Colony count 22° Colony count 22° 1 - - - -
Conductivity Conductivity 1 - - - -
Enterococci Enterococci 1 - - - -
Odour Odour 1 - - - -
Taste Taste 1 - - - -
Oxidisability Oxidisability 1 - - - -
Total Dissolved Solids TDS 2 0.00000 1500.00000 0.00000 1000.00000
Chloride Cl 2 0.00000 250.00000 0.00000 250.00000
Ammonia NH3-N 2 0.00000 1.50000 0.00000 1.50000
Nitrat NO3-N 2 0.00000 10.00000 0.00000 10.00000
Ferum/Iron Fe 2 0.00000 1.00000 0.00000 0.30000
Fluoride Fl 2 0.00000 1.50000 0.40000 0.60000
Hardness Keliatan 2 0.00000 500.00000 0.00000 500.00000
Aluminium Al 2 - - 0.00000 0.20000
Manganese Mn 2 0.00000 0.20000 0.00000 0.10000
Chemical Oxygen Demand COD 2 0.00000 10.00000 - -
Anionic Detergent MBAS MBAS 2 0.00000 1.00000 0.00000 1.00000
Biological Oxygen Demand BOD 2 0.00000 6.00000 - -
Nitrite NO2 2 - - - -
Total organic carbon (TOC) TOC 2 - - - -
Mercury Hg 3 0.00000 0.00100 0.00000 0.00100
Cadmium Cd 3 0.00000 0.00300 0.00000 0.00300
Arsenic As 3 0.00000 0.01000 0.00000 0.01000
Cyanide Cn 3 0.00000 0.07000 0.00000 0.07000
Plumbum/Lead Pb 3 0.00000 0.05000 0.00000 0.01000
Chromium Cr 3 0.00000 0.05000 0.00000 0.05000
Cuprum/Copper Cu 3 0.00000 1.00000 0.00000 1.00000
Zinc Zn 3 0.00000 3.00000 0.00000 3.00000
Natrium/Sodium Na 3 0.00000 200.00000 0.00000 200.00000
Sulphate SO4 3 0.00000 250.00000 0.00000 250.00000
Selenium Se 3 0.00000 0.01000 0.00000 0.01000
Argentum Ag 3 0.00000 0.05000 0.00000 0.05000
Magnesium Mg 3 0.00000 150.00000 0.00000 150.00000
Mineral Oil MykMin 3 0.00000 0.30000 0.00000 0.30000
Chloroform CHCl3 3 - - 0.00000 0.20000
Bromoform CHBR3 3 - - 0.00000 0.10000
Dibromoklorometana CHBr2Cl 3 - - 0.00000 0.10000
Bromodiklorometana CHCl2Br 3 - - 0.00000 0.06000
Fenol/Phenol Fenol 3 0.00000 0.00200 0.00000 0.00200
Antimony Sb 3 - - 0 0.005
Nickel Ni 3 - - 0 0.02
Dibromoacetonitrile C₂HBr₂N 3 - - 0 0.1
Dichloroacetic acid C2H2CI202 3 - - 0 0.05
Dichloroacetonitrile Cl₂CHCN 3 - - 0 0.09
Trichloroacetic acid CCl₃COOH 3 - - 0 0.1
Trichloroacetonitrile C₂Cl₃N 3 - - 0 0.001
Trihalomethanes - Total TTHM 3 - - - -
Aldrin / Dealdrin Aldrin / Dealdrin 4 0.00000 0.00003 0.00000 0.00003
DDT DDT 4 0.00000 0.00200 0.00000 0.00200
Heptachlor & Heptachlor Epoxide H & HE 4 0.00000 0.00003 0.00000 0.00003
Methoxychlor Methoxychlor 4 0.00000 0.02000 0.00000 0.02000
Lindane Lindane 4 0.00000 0.00200 0.00000 0.00200
Chlordane Chlordane 4 0.00000 0.00020 0.00000 0.00020
Endosulfan Endosulfan 4 0.00000 0.03000 0.00000 0.03000
Hexachlorobenzena Hexachlorobenzena 4 0.00000 0.00100 0.00000 0.00100
1,2-dichloroethane C2H4Cl2 4 - - 0.00000 0.03000
2,4,5-T C8H6Cl2O3 4 - - 0.00000 0.00900
2,4,6-trichlorophenol C₆H₂Cl₃OH/C₆H₃Cl₃O 4 - - 0.00000 0.20000
2,4-D C8H6Cl2O3 4 0.00000 0.03000 0.00000 0.03000
2,4-DB C8H6Cl2O3 4 - - 0.00000 0.09000
2,4-dichlorophenol C6H4Cl2O 4 - - 0.00000 0.09000
Acrylamide C3H5NO 4 - - 0.00000 0.00050
Alachlor C14H20ClNO2 4 - - 0.00000 0.02000
Aldicarb Aldicarb 4 - - 0.00000 0.01000
Benzene Benzene 4 - - 0.00000 0.01000
Carbofuran C12H15NO3 4 - - 0.00000 0.00700
MCPA C₉H₉ClO₃ 4 - - 0.00000 0.00200
Pendimethalin C13H19N3O4 4 - - 0.00000 0.02000
Pentachlorophenol C6Cl5OH 4 - - 0.00000 0.00900
Permethrin Permethrin 4 - - 0.00000 0.02000
Pesticides Pesticides 4 - - - -
Pesticides - Total Pesticides - Total 4 - - - -
Polycyclic aromatic hydrocarbons Polycyclic aromatic hydrocarbons 4 - - - -
Propanil C3H8O 4 - - 0.00000 0.02000
Tetrachloroethene and Trichloroethene C₂HCl₃ 4 - - - -
Vinyl chloride CH₂:CHCl 4 - - 0.00000 0.00500
Gross alpha (α) Gross alpha (α) 5 0.00000 0.1Bq/l 0.00000 0.1Bq/l
Gross beta (β) Gross beta (β) 5 0.00000 1.0 Bq/l 0.00000 1.0 Bq/l
Tritium Tritium 5 - - - -
Total indicative dose Total indicative dose 5 - - - -

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