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Parameter Group RECOMMENDED RAW WATER QUALITY DRINKING WATER QUALITY STANDARDS Acceptable Value (mg/litre (unless otherwise stated)) Maximum Acceptable Value (mg/litre (unless otherwise stated)) Total Coliform 1 5000 MPN / 100 ml 0 in 100 ml E.coli 1 5000 MPN / 100 m 0 in 100 m Turbidity 1 1000 NTU 5 NTU Color 1 300 TCU 15 TCU pH 1 5.5 - 9.0 6.5 - 9.0 Free Residual Chlorine 1 - 0.2 - 5.0 Combined...
Parameter | Group | RECOMMENDED RAW WATER QUALITY | DRINKING WATER QUALITY STANDARDS |
---|---|---|---|
Acceptable Value (mg/litre (unless otherwise stated)) | Maximum Acceptable Value (mg/litre (unless otherwise stated)) | ||
Total Coliform | 1 | 5000 MPN / 100 ml | 0 in 100 ml |
E.coli | 1 | 5000 MPN / 100 m | 0 in 100 m |
Turbidity | 1 | 1000 NTU | 5 NTU |
Color | 1 | 300 TCU | 15 TCU |
pH | 1 | 5.5 – 9.0 | 6.5 – 9.0 |
Free Residual Chlorine | 1 | – | 0.2 – 5.0 |
Combined Chlorine | 1 | – | Not Less Than 1.0 |
Temperature | 1 | – | – |
Clostridium perfringens (including spores) | 1 | – | Absent |
Coliform bacteria | 1 | – | – |
Colony count 22° | 1 | – | – |
Conductivity | 1 | – | – |
Enterococci | 1 | – | – |
Odour | 1 | – | – |
Taste | 1 | – | – |
Oxidisability | 1 | – | – |
Total Dissolved Solids | 2 | 1500 | 1000 |
Chloride | 2 | 250 | 250 |
Ammonia | 2 | 1.5 | 1.5 |
Nitrat | 2 | 10 | 10 |
Ferum/Iron | 2 | 1.0 | 0.3 |
Fluoride | 2 | 1.5 | 0.4 – 0.6 |
Hardness | 2 | 500 | 500 |
Aluminium | 2 | – | 0.2 |
Manganese | 2 | 0.2 | 0.1 |
Chemical Oxygen Demand | 2 | 10 | – |
Anionic Detergent MBAS | 2 | 1.0 | 1.0 |
Biological Oxygen Demand | 2 | 6 | – |
Nitrite | 2 | – | – |
Total organic carbon (TOC) | 2 | – | – |
Mercury | 3 | 0.001 | 0.001 |
Cadmium | 3 | 0.003 | 0.003 |
Arsenic | 3 | 0.01 | 0.01 |
Cyanide | 3 | 0.07 | 0.07 |
Plumbum/Lead | 3 | 0.05 | 0.01 |
Chromium | 3 | 0.05 | 0.05 |
Cuprum/Copper | 3 | 1.0 | 1.0 |
Zinc | 3 | 3 | 3 |
Natrium/Sodium | 3 | 200 | 200 |
Sulphate | 3 | 250 | 250 |
Selenium | 3 | 0.01 | 0.01 |
Argentum | 3 | 0.05 | 0.05 |
Magnesium | 3 | 150 | 150 |
Mineral Oil | 3 | 0.3 | 0.3 |
Chloroform | 3 | – | 0.2 |
Bromoform | 3 | – | 0.1 |
Dibromoklorometana | 3 | – | 0.1 |
Bromodiklorometana | 3 | – | 0.06 |
Fenol/Phenol | 3 | 0.002 | 0.002 |
Antimony | 3 | – | 0.005 |
Nickel | 3 | – | 0.02 |
Dibromoacetonitrile | 3 | – | 0.1 |
Dichloroacetic acid | 3 | – | 0.05 |
Dichloroacetonitrile | 3 | – | 0.09 |
Trichloroacetic acid | 3 | – | 0.1 |
Trichloroacetonitrile | 3 | – | 0.001 |
Trihalomethanes – Total | 3 | – | 1.00 |
Aldrin / Dealdrin | 4 | 0.00003 | 0.00003 |
DDT | 4 | 0.002 | 0.002 |
Heptachlor & Heptachlor Epoxide | 4 | 0.00003 | 0.00003 |
Methoxychlor | 4 | 0.02 | 0.02 |
Lindane | 4 | 0.002 | 0.002 |
Chlordane | 4 | 0.0002 | 0.0002 |
Endosulfan | 4 | 0.03 | 0.03 |
Hexachlorobenzena | 4 | 0.001 | 0.001 |
1,2-dichloroethane | 4 | – | 0.03 |
2,4,5-T | 4 | – | 0.009 |
2,4,6-trichlorophenol | 4 | – | 0.2 |
2,4-D | 4 | 0.03 | 0.03 |
2,4-DB | 4 | – | 0.09 |
2,4-dichlorophenol | 4 | – | 0.09 |
Acrylamide | 4 | – | 0.0005 |
Alachlor | 4 | – | 0.02 |
Aldicarb | 4 | – | 0.01 |
Benzene | 4 | – | 0.01 |
Carbofuran | 4 | – | 0.007 |
MCPA | 4 | – | 0.002 |
Pendimethalin | 4 | – | 0.02 |
Pentachlorophenol | 4 | – | 0.009 |
Permethrin | 4 | – | 0.02 |
Pesticides | 4 | – | – |
Pesticides – Total | 4 | – | – |
Polycyclic aromatic hydrocarbons | 4 | – | – |
Propanil | 4 | – | 0.02 |
Tetrachloroethene and Trichloroethene | 4 | – | – |
Vinyl chloride | 4 | – | 0.005 |
Gross alpha (α) | 5 | 0.1Bq/l | 0.1Bq/l |
Gross beta (β) | 5 | 1.0 Bq/l | 1.0 Bq/l |
Tritium | 5 | – | – |
Total indicative dose | 5 | – | – |