WHO Guidelines for drinking water
It speaks for itself that Holland Water is very committed to achieve the World Millennium Goals. This of course is very closely connected to the Guidelines on Drinking Water from the World Health Organisation.
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Guidelines for drinking waterQuality 2006 |
| Microbiological parameters | |
| Cryptosporidium | |
| Escherichia coli | |
| Enterococci | |
| (Entero) viruses | |
| Giardia | |
| Chemical parameters | (mg/l) |
| Acrylamide | 0,0005 |
| antimony | 0,02 |
| arsenic | 0,01 |
| benzene | 0,01 |
| Benzoapyrene | 0,0007 |
| Boor | 0,5 |
| Bromate | 0,01 |
| Cadmium | 0,003 |
| Chrome | 0,05 |
| Cyanides (total) | 0,07 |
| 1,2-Dichloroethane | |
| Epichlorohydrin | 0,0004 |
| Fluoride | 1,5 |
| copper | 2 |
| mercury | 0,006 |
| lead | 0,01 |
| nickel | 0,07 |
| Nitrate | 50 |
| nitrite | 0,2 |
| PAK’s (sum) | |
| PCB’s (individual) | |
| PCB’s (sum) | |
| Pesticides (individual) | |
| Pesticides (sum) | |
| selenium | 0,01 |
| Tetra- en trichlooretheen (som) | 0,04 and 0,02 (ind.) |
| Trihalomethanes (sum) | |
| Vinyl chloride | 0,0003 |
| Indicators | |
| Aero monas (30oC) | |
| Ammonium | |
| Bacteria of the coli group | |
| Bacteriophages | |
| Chloride | 250 |
| Clostridium perfringens (including spores) | |
| DOC/TOC | |
| conductance (at 20oC) | |
| Hardness (total) | |
| Colony Number at 22oC | |
| Radioactivity | |
| Total α Total β TritiumIndicative dose (total) | |
| Saturation Index (SI) | |
| Temperature | |
| Hydrogen Carbonate | |
| acidity / hydrogen ion-concentration | |
| oxygen | |
| Indicators – Organoleptic / esthetical parameters | |
| Aluminium | 0,2 or 0,1 mg/l |
| Scent | |
| Colour | |
| Iron | |
| manganese | |
| sodium | |
| Taste | |
| Sulphide | |
| Turbidity | |
| Zinc | |
| Indicators – Signalling parameters * | |
| AOX | |
| Aromatic amines | |
| (Chlorine) phenols | |
| Monocyclic halogenated hydrocarbons | |
| Alfatische halogenated hydrocarbons | |
| Monocyclic hydrocarbons/aromatics |