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 |
– |
– |
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